Water treatment system, water purifier and control method of water treatment system

Abstract

The present application relates to water multi-stage treatment device technical field, especially relates to water treatment system, water purifier and control method of water treatment system. The water treatment system is connected in sequence with activated carbon water purification unit, pure water tank and heating device, the activated carbon water purification unit is used for purifying water to be purified, the pure water tank is used for storing pure water, and the heating device is used for heating pure water; the heating device is communicated with the activated carbon water purification unit, and the activated carbon water purification unit is also connected with a wastewater pipeline; the water treatment system has a regeneration mode, and when the water treatment system is in the regeneration mode, the pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged from the wastewater pipeline. The pure water heated by the heating device is used as the disinfection and regeneration medium of the activated carbon water purification unit, the water treatment system regenerates and prolongs the service life of the activated carbon water purification unit by physical high temperature, and solves the problem of frequent replacement of the activated carbon water purification unit.

Description

Technical Field

[0001] This invention relates to the field of multi-stage water treatment devices, and particularly to water treatment systems, water purifiers, and control methods for water treatment systems. Background Technology

[0002] A water purifier is a water treatment device that performs deep filtration and purification of water according to usage requirements. Tap water inevitably contains contaminants such as rust, sediment, organic matter, and microorganisms during its transport through pipe networks. With increasing public concern about water safety, water purifiers have become widely used. The water treatment system within a water purifier typically includes pre-treatment filters, precision filters, and post-treatment filters. Pre-treatment filters remove organic matter, colloids, heavy metals, and sediment particles. Precision filters, such as reverse osmosis membrane filters, have extremely high precision and are the core treatment filters in the water purification system. Post-treatment filters remove trace elements, adjust pH, and improve drinking taste. In pre-treatment, only activated carbon can effectively remove residual chlorine and other oxidizing substances that can damage precision filters. Therefore, activated carbon filters are an indispensable component of the pre-treatment filters in a water purifier. However, activated carbon filters have a shorter lifespan compared to other filters, requiring frequent replacements and limiting the rated water purification capacity of the entire machine.

[0003] Currently, to achieve a longer lifespan and fewer replacements for activated carbon filters in water purifiers, the main methods are improving the carbon material, manufacturing process, and increasing the amount of carbon used. While these methods can all extend the lifespan of activated carbon filters to some extent, they all have a point of failure. Activated carbon filters still suffer from a short lifespan, leading to frequent replacements. Summary of the Invention

[0004] In view of this, the present invention aims to provide a water treatment system and a water purifier to solve or partially solve the problems of short lifespan and frequent replacement of existing activated carbon filter cartridges.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] In a first aspect, embodiments of the present invention provide a water treatment system comprising an activated carbon water purification unit, a pure water tank, a heating device, and a wastewater pipeline; the activated carbon water purification unit, the pure water tank, and the heating device are connected in sequence; the activated carbon water purification unit is used to purify water to be purified, the pure water tank is used to store pure water, and the heating device is used to heat the pure water; the heating device is connected to the activated carbon water purification unit, and the activated carbon water purification unit is also connected to the wastewater pipeline; the water treatment system has a regeneration mode, and when the water treatment system is in regeneration mode, the pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged from the wastewater pipeline.

[0007] Optionally, the activated carbon water purification unit includes an inlet and an outlet. The inlet is connected to the wastewater pipeline and is used to allow the water to be purified to flow into it. The outlet is connected to the pure water tank and the heating device. The water treatment system also has a water production mode. In the water production mode, the water to be purified flows into the activated carbon water purification unit through the inlet and is then discharged from the outlet after purification. In the regeneration mode, the purified water heated by the heating device flows into the activated carbon water purification unit through the outlet, and the impurity water is discharged from the inlet.

[0008] Optionally, the pure water tank is also connected to the activated carbon water purification unit, and the water treatment system has a pure water cooling mode; when the water treatment system is in the pure water cooling mode, the pure water in the pure water tank flows into the activated carbon water purification unit, and the pure water with increased temperature discharged from the activated carbon water purification unit is discharged from the wastewater pipeline.

[0009] Optionally, the water treatment system further includes a first control valve, a second control valve, and a third control valve; the first port of the first control valve is connected to the activated carbon water purification unit, the second port of the first control valve is connected to the second ports of the second and third control valves, and the third port of the first control valve is connected to the pure water tank; the first port of the second control valve is connected to the pure water tank, the second port of the second control valve is also connected to the second port of the third control valve, and the third port of the second control valve is connected to the heating device; the first port of the third control valve is connected to the heating device; when the water treatment system is in water production mode, the first control valve's... One port is connected to the third port of the first control valve, and the first port of the second control valve is connected to the third port of the second control valve, while the third control valve is closed; when the water treatment system is in regeneration mode, the first port of the second control valve is connected to the third port of the second control valve, and the first port of the third control valve is connected to the second port of the third control valve, while the first port of the first control valve is connected to the second port of the first control valve; when the water treatment system is in pure water cooling mode, the first port of the second control valve is connected to the second port of the second control valve, and the first port of the first control valve is connected to the second port of the first control valve, while the third control valve is closed.

[0010] Optionally, the water treatment system further includes a purification pipeline, one end of which is connected to the activated carbon water purification unit, and the other end of which is connected to the heating device; the purified water heated by the heating device flows into the activated carbon water purification unit through the purification pipeline.

[0011] Optionally, the water treatment system further includes a fourth control valve, a fifth control valve, and a sixth control valve; the first port of the fourth control valve is connected to the activated carbon water purification unit and the first port of the fifth control valve, and the second port of the fourth control valve is connected to the pure water tank; the second port of the fifth control valve is connected to the first port of the sixth control valve; the second port of the sixth control valve is connected to the heating device; when the water treatment system is in water production mode, the first port and the second port of the fourth control valve are connected, the fifth control valve is disconnected, and the first port and the second port of the sixth control valve are disconnected; when the water treatment system is in regeneration mode, the first port and the second port of the sixth control valve are connected, the first port and the second port of the fifth control valve are connected, and the fourth control valve is disconnected.

[0012] Optionally, the purification pipeline is provided with a third concentrate outlet; the water treatment system has a water-to-be-purified cooling mode; when the water treatment system is in the water-to-be-purified cooling mode, the water to be purified flows into the activated carbon water purification unit, and the water to be purified with increased temperature discharged from the activated carbon water purification unit is discharged from the third concentrate outlet through the purification pipeline.

[0013] Optionally, the water treatment system further includes a fourth control valve, a fifth control valve, and a sixth control valve. The first port of the fourth control valve is connected to the activated carbon water purification unit and the first port of the fifth control valve, and the second port of the fourth control valve is connected to the pure water tank. The second port of the fifth control valve is connected to the first port of the sixth control valve. The second port of the sixth control valve is connected to the heating device, and the third port of the sixth control valve is connected to the third concentrate outlet. When the water treatment system is in the cooling mode for water to be purified, the fourth control valve is disconnected, the first port and the second port of the fifth control valve are connected, and the first port and the third port of the sixth control valve are connected.

[0014] Optionally, the water treatment system further includes a water intake, and the heating device is connected to the water intake, through which pure water heated by the heating device flows out.

[0015] Optionally, the water treatment system further includes a pretreatment unit, a precision water purification unit, and a post-treatment unit; the pretreatment unit, the activated carbon water purification unit, the precision water purification unit, the post-treatment unit, the pure water tank, and the heating device are connected in sequence; or, the pretreatment unit, the activated carbon water purification unit, the precision water purification unit, the pure water tank, the post-treatment unit, and the heating device are connected in sequence.

[0016] Optionally, the activated carbon water purification unit includes activated carbon.

[0017] Secondly, embodiments of the present invention provide a water purifier, which includes a main body and a water treatment system, wherein the water treatment system is disposed within the main body and is the water treatment system described above.

[0018] Thirdly, embodiments of the present invention provide a control method applied to the above-mentioned water treatment system, comprising the following steps:

[0019] Activate regeneration mode;

[0020] The pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged through the wastewater pipeline.

[0021] Optionally, the following steps are also included before initiating regeneration mode:

[0022] Obtain the actual purified water volume of the activated carbon water purification unit;

[0023] Determine whether the actual purified water volume is equal to the regenerated purified water volume of the activated carbon water purification unit;

[0024] When the actual purified water volume equals the regenerated purified water volume, the regeneration state is initiated.

[0025] When starting the regeneration standby state, determine whether the current time is the idle time of the whole machine;

[0026] The regeneration mode is activated when the machine is in idle time.

[0027] Optionally, the amount of regenerated purified water is the product of the sum of the number of regenerations of the activated carbon water purification unit plus one and the amount of purified water at the first preset interval when the activated carbon water purification unit needs to be regenerated.

[0028] Optionally, the control method further includes:

[0029] When the actual purified water volume is less than the regenerated purified water volume, determine whether the difference between the regenerated purified water volume and the actual purified water volume is equal to the short-time flushing purified water volume;

[0030] When the difference between the regenerated purified water volume and the actual purified water volume is equal to the short-time flushing purified water volume, the disinfection state is initiated.

[0031] When starting the disinfection process, activate the short-time rinsing mode;

[0032] The pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged through the wastewater pipeline.

[0033] Optionally, the short-time flushing water volume is the product of the number of flushes of the activated carbon water purification unit plus one within the current regeneration mode cycle and the second preset interval water volume when the activated carbon water purification unit needs to be flushed.

[0034] Optionally, the duration of the short-time flushing mode is shorter than the duration of the regeneration mode.

[0035] Optionally, when activating the short-time flushing mode, the temperature of the heated pure water is greater than the ambient temperature and less than or equal to 100 degrees Celsius.

[0036] Optionally, when the regeneration mode is activated, the temperature of the heated pure water is greater than the ambient temperature and less than or equal to 80 degrees Celsius.

[0037] Optionally, after the pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged through the wastewater pipe, the process also includes...

[0038] Start the pure water cooling mode;

[0039] The pure water in the pure water tank flows into the activated carbon water purification unit, and the pure water with increased temperature discharged from the activated carbon water purification unit is discharged from the wastewater pipeline.

[0040] Optionally, after the pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged through the wastewater pipe, the process also includes...

[0041] Start the cooling mode for the water to be purified;

[0042] The water to be purified flows into the activated carbon water purification unit, and the water to be purified, which has been heated and discharged from the activated carbon water purification unit, is discharged from the third concentrate outlet through the purification pipeline.

[0043] Compared with existing technologies, the water treatment system described in this invention has the following advantages:

[0044] This invention discloses a water treatment system comprising an activated carbon water purification unit, a pure water tank, a heating device, and a wastewater pipeline. It features a simple structure and eliminates the need for additional heating devices or other electrical equipment, making it more energy-efficient and environmentally friendly. In regeneration mode, the pure water heated by the heating device flows into the activated carbon water purification unit, while impurity water discharged from the unit exits through the wastewater pipeline. In other words, the heated pure water serves as the disinfection and regeneration medium for the activated carbon water purification unit. The system regenerates and extends the lifespan of the activated carbon water purification unit through physical high-temperature methods, solving the problem of frequent element replacement. Reducing the frequency of element replacement also avoids waste and environmental pollution caused by directly discarding the activated carbon water purification unit. Regenerating the activated carbon water purification unit with clean, high-temperature pure water eliminates the need for additional auxiliary substances such as flocculants or chlorine dioxide, resulting in higher safety and greater energy efficiency and environmental friendliness. Furthermore, the water treatment system of this embodiment is simple to implement and has wider applicability.

[0045] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0047] Figure 1 This is a schematic diagram of a water treatment system according to an embodiment of the present invention;

[0048] Figure 2 for Figure 1 A schematic diagram of the water flow direction of the water treatment system in water production mode;

[0049] Figure 3 for Figure 1 A schematic diagram of the water flow direction in the regeneration mode of the water treatment system described above;

[0050] Figure 4 for Figure 1 A schematic diagram of the water flow direction of the water treatment system in pure water cooling mode;

[0051] Figure 5 This is a schematic diagram of a water treatment system according to another embodiment of the present invention;

[0052] Figure 6 for Figure 5A schematic diagram of the water flow direction of the water treatment system in water production mode;

[0053] Figure 7 for Figure 5 A schematic diagram of the water flow direction in the regeneration mode of the water treatment system described above;

[0054] Figure 8 for Figure 5 A schematic diagram of the water flow direction of the water treatment system in the cooling mode of the water to be purified;

[0055] Figure 9 This is a schematic flowchart of the control method according to the first embodiment of the present invention;

[0056] Figure 10 This is a flowchart illustrating the control method according to the second embodiment of the present invention.

[0057] Explanation of reference numerals in the attached figures:

[0058] 1 - Activated carbon water purification unit; 11 - Inlet of activated carbon water purification unit; 12 - Outlet of activated carbon water purification unit; 2 - Pure water tank; 3 - Heating device; 41 - Wastewater pipeline; 42 - Purification pipeline; 51 - First control valve; 52 - Second control valve; 53 - Third control valve; 54 - Fourth control valve; 55 - Fifth control valve; 56 - Sixth control valve; 57 - Seventh control valve; 58 - Eighth control valve; 59 - Ninth control valve; 61 - First concentrate inlet; 62 - Second concentrate inlet; 63 - Third concentrate inlet; 64 - Raw water inlet; 65 - Water intake; 7 - Pretreatment unit; 8 - Precision water purification unit; 9 - Post-treatment unit; 10 - Pressurization unit. Detailed Implementation

[0059] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0060] This application provides a water treatment system, referring to... Figure 1 The illustration shows a schematic diagram of a water treatment system in an embodiment of this application. This water treatment system can be used to purify water into pure water to meet usage requirements, such as drinking water requirements.

[0061] Reference Figure 1As shown, the water treatment system includes an activated carbon water purification unit 1, a pure water tank 2, a heating device 3, and a wastewater pipeline 41. The activated carbon water purification unit 1, the pure water tank 2, and the heating device 3 are connected in sequence. The activated carbon water purification unit 1 is used to purify the water to be purified, the pure water tank 2 is used to store pure water, and the heating device 3 is used to heat the pure water. The heating device 3 is connected to the activated carbon water purification unit 1, and the activated carbon water purification unit 1 is also connected to the wastewater pipeline 41. The water treatment system has a regeneration mode. When the water treatment system is in the regeneration mode, the pure water heated by the heating device 3 flows into the activated carbon water purification unit 1, and the impurity water discharged from the activated carbon water purification unit 1 is discharged from the wastewater pipeline 41.

[0062] Specifically, the activated carbon water purification unit 1 is used to purify the water to be purified. The activated carbon water purification unit 1 mainly removes organic matter, residual chlorine, colloids, heavy metals, and sediment particles. The embodiments of this application do not specifically limit the structure of the activated carbon water purification unit 1. For example, the activated carbon water purification unit 1 is a filter element containing activated carbon; or, for example, the activated carbon water purification unit 1 is the activated carbon water purification unit part in a PCB composite filter module.

[0063] The pure water tank 2 is used to store pure water, where pure water refers to water that has been treated by a water treatment system and is free of impurities or bacteria. Impurities refer to organic pollutants, inorganic salts, any additives, and various other impurities. This application does not specifically limit the structure of the pure water tank 2. For example, the pure water tank 2 may be a device that requires an external drive pump to supply pure water, such as to supply pure water to the heating device 3; or, for example, the pure water tank 2 may be a device that does not require an external drive pump to supply pure water, where the pure water tank 2 can store a certain volume of pure water and supply it externally through pressure.

[0064] The heating device 3 is used to heat pure water. This application embodiment does not specifically limit the structure of the heating device 3. For example, the heating device 3 includes a stainless steel heating tube, an electric heating wire, etc., which rapidly raise the temperature of the pure water to a specified temperature through heating. To ensure that the pure water heated by the heating device 3 meets the usage temperature requirements, the heating device 3 also includes a temperature regulating component. The temperature regulating component is connected between the pure water tank 2 and the stainless steel heating tube, electric heating wire, etc., and achieves the pure water meets the usage temperature requirements through heat exchange or by mixing the pure water in the pure water tank 2 with the pure water heated by the stainless steel heating tube, electric heating wire, etc. This usage temperature requirement is, for example, the temperature requirement for drinking, or, for example, the temperature requirement for disinfecting and regenerating the activated carbon water purification unit 1.

[0065] In this embodiment, the temperature of the pure water heated by the heating device 3 is not specifically limited. For example, the temperature of the pure water heated by the heating device 3 is greater than the ambient temperature but less than the boiling point of water.

[0066] The adsorption process of pollutants in activated carbon water purification unit 1 mainly includes physical adsorption and chemical adsorption. Physical adsorption is the primary adsorption process occurring on the activated carbon in activated carbon water purification unit 1. Changing the conditions can disrupt the adsorption equilibrium, causing the adsorbate to desorb. Chemical adsorption is irreversible; essentially, it involves the formation of stable complexes between the functional groups on the surface of activated carbon and pollutant molecules. During the purification of water, activated carbon in activated carbon water purification unit 1 initially relies primarily on physical adsorption. Once physical adsorption approaches saturation, chemical adsorption intervenes until it becomes completely ineffective. In this embodiment, the pure water heated by heating device 3 flows into activated carbon water purification unit 1. The heated pure water can disrupt the equilibrium between activated carbon and adsorbate through high physical temperature, reversing the physical adsorption process and slowing down the chemical adsorption reaction. This allows the activated carbon to regenerate and restore its adsorption capacity, extending the service life of activated carbon water purification unit 1. Furthermore, during prolonged operation, bacteria and biofilm may grow on the surface of activated carbon water purification unit 1, leading to a decline in its water purification performance and potentially even direct contamination of the purified water. The pure water heated by the heating device 3 flows into the activated carbon water purification unit 1, and can also be disinfected by physical high temperature.

[0067] The water treatment system of this application embodiment includes an activated carbon water purification unit 1, a pure water tank 2, a heating device 3, and a wastewater pipeline 41. It has the advantage of simple structure and does not require additional electrical devices such as the heating device 3, making it more energy-efficient and environmentally friendly. When the water treatment system is in regeneration mode, the pure water heated by the heating device 3 flows into the activated carbon water purification unit 1, and the impurity water discharged from the activated carbon water purification unit 1 is discharged through the wastewater pipeline 41. That is, the pure water heated by the heating device 3 serves as the disinfection and regeneration medium for the activated carbon water purification unit 1. The water treatment system regenerates and extends the lifespan of the activated carbon water purification unit 1 through physical high-temperature methods, solving the problem of frequent replacement of the activated carbon water purification unit 1. Reducing the replacement frequency of the activated carbon water purification unit 1 also avoids waste and environmental pollution caused by directly discarding the activated carbon water purification unit 1. Regenerating the activated carbon water purification unit 1 with clean, high-temperature pure water eliminates the need for additional auxiliary substances, such as flocculants or chlorine dioxide, making the water treatment system safer and more energy-efficient and environmentally friendly. The water treatment system of this application embodiment also has the advantages of simple process implementation and wider applicability.

[0068] Optionally, the activated carbon water purification unit 1 includes activated carbon. The water treatment system in this embodiment of the application is a regeneration of activated carbon to extend the lifespan of the activated carbon water purification unit 1.

[0069] Optional, refer to Figure 1As shown, the activated carbon water purification unit 1 includes an inlet 11 and an outlet 12. The inlet 11 is connected to the wastewater pipeline 41 and is used to receive water to be purified. The outlet 12 is connected to the pure water tank 2 and the heating device 3. The water treatment system also has a water production mode. In the water production mode, the water to be purified flows into the activated carbon water purification unit 1 through the inlet 11 and is discharged from the outlet 12 after purification. In the regeneration mode, the pure water heated by the heating device 3 flows into the activated carbon water purification unit 1 through the outlet 12, and the impurity water is discharged from the inlet 11.

[0070] When the water treatment system is in water production mode, the activated carbon water purification unit 1 is used to purify the water to be purified. The water to be purified flows into the activated carbon water purification unit 1 through the inlet 11 and is discharged from the outlet 12 after being purified by the activated carbon water purification unit 1.

[0071] When the water treatment system is in regeneration mode, the high-temperature pure water heated by the heating device 3 flows into the activated carbon water purification unit 1 through the outlet 12 of the activated carbon water purification unit. The high-temperature pure water disinfects and regenerates the activated carbon water purification unit 1, which can effectively extend the service life of the activated carbon water purification unit 1. The adsorbate that is physically adsorbed and desorbed in the reverse direction in the activated carbon water purification unit 1 mixes with the pure water to form impurity water, which is discharged from the inlet 11 of the activated carbon water purification unit.

[0072] In the water treatment system of this application embodiment, the water flow direction of the activated carbon water purification unit 1 during normal water production and disinfection and regeneration is opposite, which can realize the reverse flushing regeneration of the activated carbon water purification unit 1. While achieving effective regeneration, the reverse flushing regeneration can also clear the structure of the activated carbon water purification unit 1 and remove some impurities through the backwash force of the water.

[0073] Optionally, the pure water tank 2 is also connected to the activated carbon water purification unit 1, and the water treatment system has a pure water cooling mode. When the water treatment system is in the pure water cooling mode, the pure water in the pure water tank 2 flows into the activated carbon water purification unit 1, and the pure water with increased temperature discharged from the activated carbon water purification unit 1 is discharged from the wastewater pipe 41. In the water treatment system of this embodiment, high-temperature pure water is used to disinfect and regenerate the activated carbon water purification unit 1. After the impurity water is discharged from the inlet 11 of the activated carbon water purification unit, the temperature inside the activated carbon water purification unit 1 is still relatively high. The pure water in the pure water tank 2 flowing into the activated carbon water purification unit 1 can absorb the heat inside the activated carbon water purification unit 1, and the pure water with increased temperature is discharged from the activated carbon water purification unit 1 to reduce the temperature of the activated carbon water purification unit 1. This avoids damage to the performance of the next stage filter element due to excessively high water temperature when the water purification mode is performed under high temperature conditions inside the activated carbon water purification unit 1.

[0074] Optionally, the water treatment system also includes a water inlet 65, with a heating device 3 connected to it. The heated pure water flows out from the water inlet 65. Pure water stored in the pure water tank 2 flows into the heating device 3 for heating, supplying water to the water inlet 65 and for disinfection and regeneration of the activated carbon water purification unit 1. The water inlet 65 and the disinfection and regeneration of the activated carbon water purification unit 1 share a single heating device 3, resulting in a lower cost for the water treatment system.

[0075] Optionally, the water treatment system further includes a first control valve 51, a second control valve 52, and a third control valve 53; the first port of the first control valve 51 is connected to the activated carbon water purification unit 1, the second port of the first control valve 51 is connected to the second ports of the second control valve 52 and the third control valve 53, and the third port of the first control valve 51 is connected to the pure water tank 2; the first port of the second control valve 52 is connected to the pure water tank 2, the second port of the second control valve 52 is also connected to the second port of the third control valve 53, and the third port of the second control valve 52 is connected to the heating device 3; the first port of the third control valve 53 is connected to the heating device 3.

[0076] When the water treatment system is in water production mode, refer to Figure 2 As shown, the first port and the third port of the first control valve 51 are connected, the first port and the third port of the second control valve 52 are connected, and the third control valve 53 is in the off state. The water to be purified flows into the activated carbon water purification unit 1 through the inlet 11 of the activated carbon water purification unit. After being purified by the activated carbon water purification unit 1, the water is discharged from the outlet 12 of the activated carbon water purification unit, and then enters the pure water tank 2 through the first control valve 51. The pure water in the pure water tank 2 then enters the heating device 3 through the second control valve 52. When water needs to be taken out, the pure water heated by the heating device 3 flows out to the water outlet 65.

[0077] When the water treatment system is in regeneration mode, refer to Figure 3 As shown, the first port of the second control valve 52 is connected to the third port of the second control valve 52, the first port of the third control valve 53 is connected to the second port of the third control valve 53, and the first port of the first control valve 51 is connected to the second port of the first control valve 51. The pure water in the pure water tank 2 enters the heating device 3 through the second control valve 52. The pure water heated by the heating device 3 flows out through the third control valve 53 and the first control valve 51 and then flows into the activated carbon water purification unit 1. The impurity water discharged from the activated carbon water purification unit 1 is discharged through the wastewater pipe 41.

[0078] When the water treatment system is in pure water cooling mode, refer to Figure 4 As shown, the first port of the second control valve 52 is connected to the second port of the second control valve 52, the first port of the first control valve 51 is connected to the second port of the first control valve 51, and the third control valve 53 is in the off state. The pure water in the pure water tank 2 flows into the activated carbon water purification unit 1 through the second control valve 52 and the first control valve 51 in sequence, and the pure water with increased temperature discharged from the activated carbon water purification unit 1 is discharged from the wastewater pipe 41.

[0079] The water treatment system can realize water production mode, regeneration mode and pure water cooling mode by controlling the opening and closing of the first control valve 51, the second control valve 52 and the third control valve 53, and has the advantage of simple process.

[0080] Optional, refer to Figure 5 As shown, the water treatment system also includes a purification pipe 42, one end of which is connected to the activated carbon water purification unit 1, and the other end of which is connected to the heating device 3. The purified water heated by the heating device 3 flows into the activated carbon water purification unit 1 through the purification pipe 42. In the above structure, the purification pipe 42 is the flow channel for the purified water heated by the heating device 3 to flow into the activated carbon water purification unit 1.

[0081] Optional, refer to Figure 5As shown, a third concentrate outlet 63 is provided on the purification pipeline 42; the water treatment system has a water-to-be-purified-water cooling mode; when the water treatment system is in the water-to-be-purified-water cooling mode, the water to be purified flows into the activated carbon water purification unit 1, and the water to be purified with increased temperature discharged from the activated carbon water purification unit 1 is discharged through the purification pipeline 42 from the third concentrate outlet 63. In the water treatment system of this embodiment, high-temperature pure water is used to disinfect and regenerate the activated carbon water purification unit 1. After the impurity water is discharged from the inlet 11 of the activated carbon water purification unit, the temperature inside the activated carbon water purification unit 1 is still relatively high. The water to be purified flowing into the activated carbon water purification unit 1 can absorb the heat inside the activated carbon water purification unit 1, and the water to be purified with increased temperature is discharged from the activated carbon water purification unit 1 to reduce the temperature of the activated carbon water purification unit 1. This avoids damage to the performance of the next stage filter element due to excessively high water temperature when the water purification mode is performed under high temperature conditions inside the activated carbon water purification unit 1.

[0082] Optional, refer to Figure 5 As shown, the water treatment system also includes a fourth control valve 54, a fifth control valve 55, and a sixth control valve 56. The first port of the fourth control valve 54 is connected to the activated carbon water purification unit 1 and the first port of the fifth control valve 55. The second port of the fourth control valve 54 is connected to the pure water tank 2. The second port of the fifth control valve 55 is connected to the first port of the sixth control valve 56. The second port of the sixth control valve 56 is connected to the heating device 3. The third port of the sixth control valve 56 is connected to the third concentrate port 63.

[0083] When the water treatment system is in water production mode, refer to Figure 6 As shown, the first port and the second port of the fourth control valve 54 are connected, the fifth control valve 55 is disconnected, and the second port of the sixth control valve 56 is disconnected from the first port and the third port of the sixth control valve 56. The water to be purified flows into the activated carbon water purification unit 1 through the inlet 11. After purification by the activated carbon water purification unit 1, the water is discharged from the outlet 12 of the activated carbon water purification unit, and then enters the pure water tank 2 through the fourth control valve 54. When water needs to be taken out, the pure water in the pure water tank 2 enters the heating device 3, and the pure water heated by the heating device 3 flows out to the water outlet 65.

[0084] When the water treatment system is in regeneration mode, refer to Figure 7As shown, the first port of the sixth control valve 56 and the second port of the sixth control valve 56 are connected, the first port of the fifth control valve 55 and the second port of the fifth control valve 55 are connected, and the fourth control valve 54 is disconnected; the pure water in the pure water tank 2 enters the heating device 3, and the pure water heated by the heating device 3 flows out through the sixth control valve 56 and the fifth control valve 55 and then flows into the activated carbon water purification unit 1. The impurity water discharged from the activated carbon water purification unit 1 is discharged from the wastewater pipe 41.

[0085] When the water treatment system is in the water-cooling mode to be purified, refer to Figure 8 As shown, the fourth control valve 54 is disconnected, the first port and the second port of the fifth control valve 55 are connected, and the first port and the third port of the sixth control valve 56 are connected. The water to be purified flows into the activated carbon water purification unit 1, and the water to be purified with increased temperature discharged from the activated carbon water purification unit 1 passes through the fifth control valve 55 and the sixth control valve 56 in sequence and is discharged from the third concentrate port 63.

[0086] The water treatment system of this application embodiment can realize water production mode, regeneration mode and water to be purified cooling mode by controlling the on and off of the fourth control valve 54, the fifth control valve 55 and the sixth control valve 56, and has the advantage of simple process.

[0087] Optional, refer to Figure 1 As shown, the water treatment system also includes a pretreatment unit 7, a precision water purification unit 8, and a post-treatment unit 9; the pretreatment unit 7, the activated carbon water purification unit 1, the precision water purification unit 8, the post-treatment unit 9, the pure water tank 2, and the heating device 3 are connected in sequence through pipelines; or, the pretreatment unit 7, the activated carbon water purification unit 1, the precision water purification unit 8, the pure water tank 2, the post-treatment unit 9, and the heating device 3 are connected in sequence through pipelines.

[0088] In this embodiment, the structure of the pretreatment unit 7 is not specifically limited. For example, the pretreatment unit 7 may be a PP cotton filter (PP cotton is a synthetic chemical fiber); or, for example, an ultrafiltration filter. The pretreatment unit 7 and the activated carbon water purification unit 1 are connected in series for the pretreatment of the water treatment system, which can remove organic matter, residual chlorine, colloids, heavy metals, and silt particles.

[0089] The embodiments of this application do not specifically limit the structure of the precision water purification unit 8. For example, the precision water purification unit 8 mainly includes an RO membrane, which is the core component of the water purifier. It has extremely high purification precision and can filter out all impurity molecules except water molecules. However, it is not resistant to high temperatures. When the activated carbon water purification unit 1 is regenerated at high temperatures, it needs to avoid the precision water purification unit 8 to prevent performance damage to the precision water purification unit 8.

[0090] The embodiments of this application do not specifically limit the structure of the post-treatment unit 9. For example, the post-treatment unit 9 is mostly a post-activated carbon filter element, which can be located upstream or downstream of the pure water tank 2. It is the last stage in the water purification system and is used to remove trace elements and adjust the taste of water.

[0091] In the water treatment system of this application embodiment, the water to be purified is purified into pure water after passing through the pretreatment unit 7, the activated carbon water purification unit 1, the precision water purification unit 8, and the post-treatment unit 9. The pure water flows into the pure water tank 2 for storage and meets the usage requirements, such as meeting the drinking water standard.

[0092] Optionally, the water treatment system also includes a seventh control valve 57, an eighth control valve 58, and a ninth control valve 59. The first port of the seventh control valve 57 is connected to the pretreatment unit 7, and the second port of the seventh control valve 57 is connected to the first port of the eighth control valve 58 and the activated carbon water purification unit 1. The second port of the eighth control valve 58 is connected to the first concentrate port 61. The first port of the ninth control valve 59 is connected to the precision water purification unit 8, and the second port of the ninth control valve 59 is connected to the second concentrate port 62.

[0093] It is understood that the embodiments of this application do not specifically limit the structure of the first control valve 51, the second control valve 52, the third control valve 53, the fourth control valve 54, the fifth control valve 55, the sixth control valve 56, the seventh control valve 57, the eighth control valve 58, and the ninth control valve 59, as long as they meet the usage requirements. For example, the first control valve 51, the second control valve 52, and the sixth control valve 56 are bidirectional valves with one inlet and two outlets. When the bidirectional valve is open, the first port and the second port of the bidirectional valve are connected; when the bidirectional valve is closed, the first port and the third port of the bidirectional valve are connected. For example, the third control valve 53 is a one-way valve. A one-way valve can be a valve that is not controlled by a program. A one-way valve is used to restrict the direction of water flow in the pipeline, preventing it from flowing backward. As another example, the fourth control valve 54, the fifth control valve 55, the seventh control valve 57, the eighth control valve 58, and the ninth control valve 59 are solenoid valves, which can control the opening and closing of a single pipeline.

[0094] Optionally, the water treatment system also includes a pressurization unit 10, which is used to pressurize the water to be purified, allowing it to flow smoothly through the water treatment system. The pressurization unit 10 can be located upstream of the pretreatment unit 7, or between the pretreatment unit 7 and the activated carbon water purification unit 1, as long as it meets the pressurization requirements for the water to be purified.

[0095] The embodiments of this application do not specifically limit the structure of the booster unit 10. For example, the booster unit 10 is a booster pump.

[0096] Optionally, the water treatment system further includes a PCB composite filter module and a precision water purification unit 8, which are connected in sequence. The PCB composite filter module includes an activated carbon water purification unit 1. In the above structure of this application embodiment, the PCB composite filter module can filter out organic matter, residual chlorine, colloids, heavy metals, and sediment particles.

[0097] In the water treatment system of this application embodiment, the water to be purified is purified into pure water after passing through the PCB composite filter module and the precision water purification unit 8. The pure water flows into the pure water tank 2 for storage and meets the usage requirements, such as meeting the drinking water standard.

[0098] Optionally, the water treatment system also includes a controller. The controller's program can control the start and stop of the booster unit 10, the power of the heating device 3, the temperature control components, and the opening or closing of the first control valve 51, the second control valve 52, the third control valve 53, the fourth control valve 54, the fifth control valve 55, the sixth control valve 56, the seventh control valve 57, the eighth control valve 58, and the ninth control valve 59 based on relevant detected parameters, to achieve water production mode, regeneration mode, pure water cooling mode, or water to be purified cooling mode. These relevant parameters include, for example, purified water volume, time, water temperature, and liquid level. The regeneration mode of the water treatment system includes various specific forms such as running water rinsing, soaking, and short-time and long-time regeneration, which are alternately regenerated and cooled in conjunction with the pure water cooling mode or the water to be purified cooling mode to achieve the best regeneration effect. The water treatment system can disinfect and regenerate the activated carbon water purification unit 1 while the user is drinking normal water, including short-time disinfection and long-time regeneration, effectively ensuring water purification performance and reducing the frequency of replacement of the activated carbon water purification unit 1.

[0099] In the water treatment system of this application embodiment, the hot water used for disinfection and regeneration and the water inlet 65 share a heating device 3. In the water production mode and the regeneration mode, the water flow direction in the activated carbon water purification unit 1 is opposite, which can realize the reverse flushing regeneration of the activated carbon water purification unit 1. While the reverse flushing achieves effective regeneration, it can also clear the reverse flushing structure and remove some impurities through the backwash force.

[0100] The water treatment system of this application embodiment uses a controller to control the water treatment system to implement water production mode, regeneration mode, pure water cooling mode, or water to be purified cooling mode. After the pure water heated by the heating device 3 enters the activated carbon water purification unit 1, the controller controls each valve according to a preset program to make the hot water in the activated carbon water purification unit 1 either flow-wash or stand still. After the regeneration mode ends (the hot water flows and washes for a specified time or stands still for a specified number of times), the pure water cooling mode or the water to be purified cooling mode is started. After the regeneration mode, pure water cooling mode, or water to be purified cooling mode ends, the system enters the normal water production mode.

[0101] The specific embodiments of the pure water cooling mode in this application are as follows:

[0102] Water production mode: Refer to Figure 2 As shown, the raw water inlet 64 is connected to the booster unit 10, and the water to be purified after being boosted by the booster unit 10 enters the pretreatment unit 7. Water discharged from the pretreatment unit 7 passes through the seventh control valve 57 and then through the inlet 11 of the activated carbon water purification unit into the activated carbon water purification unit 1. Water discharged from the outlet 12 of the activated carbon water purification unit flows into the precision water purification unit 8 through the first and third ports of the first control valve 51. The pure water discharged from the precision water purification unit 8 then passes through the post-treatment unit 9 and enters the pure water tank 2. The concentrated water discharged from the precision water purification unit 8 passes through the ninth control valve 59 and is discharged from the second concentrated water outlet 62. The pure water discharged from the pure water tank 2 is connected to the heating device through the first and third ports of the second control valve 52, and the heating device is connected to the water intake 65. The above structure is the normal water production pipeline in the water production mode.

[0103] Regeneration mode: Reference Figure 3 As shown, the seventh control valve 57 is closed, the first port and the second port of the first control valve 51 are connected, the first port and the third port of the second control valve 52 are connected, the third control valve 53 is open, and the eighth control valve 58 is open. Pure water in the pure water tank 2 enters the heating device 3 through the second control valve 52. The heated pure water from the heating device 3 flows out through the third control valve 53 and the first control valve 51 before entering the activated carbon water purification unit 1. Impurities discharged from the activated carbon water purification unit 1 are discharged from the wastewater pipe 41 through the eighth control valve 58 and the first concentrate port 61. The above structure is a thermal regeneration pipeline in regeneration mode.

[0104] Pure water cooling mode: Refer to Figure 4 As shown, the seventh control valve 57 is closed, the eighth control valve 58 is open, the first port and the second port of the first control valve 51 are connected, and the first port and the second port of the second control valve 52 are connected. Pure water in the pure water tank 2 flows sequentially through the second control valve 52 and the first control valve 51 into the activated carbon water purification unit 1. The heated pure water discharged from the activated carbon water purification unit 1 is discharged from the wastewater pipe 41 through the eighth control valve 58 and the first concentrate port 61. The above structure is a pure water cooling pipeline in a pure water cooling mode.

[0105] The specific embodiments of the water-cooling mode to be purified in this application are as follows:

[0106] Water production mode: Refer to Figure 6As shown, the raw water inlet 64 is connected to the booster unit 10. The water to be purified, after being pressurized by the booster unit 10, enters the pretreatment unit 7. The water discharged from the pretreatment unit 7 passes through the seventh control valve 57 and then through the inlet 11 of the activated carbon water purification unit into the activated carbon water purification unit 1. The water discharged from the outlet 12 of the activated carbon water purification unit flows through the fourth control valve 54 sequentially into the precision water purification unit 8 and the post-treatment unit 9 before entering the pure water tank 2. The concentrated water discharged from the precision water purification unit 8 passes through the ninth control valve 59 and is discharged from the second concentrated water outlet 62. The pure water tank 2 is connected to a heating device, which is connected to the water intake 65. The above structure is the normal water production pipeline in the water production mode.

[0107] Regeneration mode: Reference Figure 7 As shown, the seventh control valve 57 is closed, the eighth control valve 58 is open, the fourth control valve 54 is closed, the fifth control valve 55 is open, and the first and second ports of the sixth control valve 56 are connected. Pure water in the pure water tank 2 enters the heating device 3. The pure water heated by the heating device 3 flows out through the sixth control valve 56 and the fifth control valve 55 before entering the activated carbon water purification unit 1. Impurities discharged from the activated carbon water purification unit 1 are discharged through the wastewater pipe 41 via the eighth control valve 58 and the first concentrate port 61. The above structure is a thermal regeneration pipeline in regeneration mode.

[0108] Cooling mode for water to be purified: Refer to Figure 8 As shown, the seventh control valve 57 is on, the fourth control valve 54 is closed, the fifth control valve 55 is on, the first and third ports of the sixth control valve 56 are connected, and the eighth control valve 58 is closed. The water to be purified, pressurized by the pressurization unit 10, enters the pretreatment unit 7. Water discharged from the pretreatment unit 7 flows through the seventh control valve 57 into the activated carbon water purification unit 1. The water to be purified, with its temperature increased, discharged from the activated carbon water purification unit 1 passes sequentially through the fifth control valve 55 and the sixth control valve 56, and is discharged from the third concentrate port 63. The above structure is the cooling pipeline for the water to be purified in a cooling mode.

[0109] The water treatment system of this application embodiment regenerates and extends the lifespan of the activated carbon water purification unit 1 through physical high-temperature methods, solving the problem of frequent replacement of the activated carbon water purification unit 1. This removes the limitation on increasing the rated water purification capacity of the entire machine, enhancing product competitiveness. Reducing the replacement frequency of the activated carbon water purification unit 1 also avoids waste and environmental pollution caused by directly discarding the activated carbon water purification unit 1, making it more energy-efficient and environmentally friendly. Regenerating the activated carbon water purification unit 1 with clean, high-temperature pure water eliminates the need for additional auxiliary substances, such as flocculants or chlorine dioxide, resulting in higher safety for the water treatment system. The water treatment system of this application embodiment also has the advantages of simple process implementation and wider applicability. Therefore, the water treatment system is highly competitive, and water purifiers using this system are also highly competitive.

[0110] This application also provides a water purifier, which includes a main body and a water treatment system. The water treatment system is located within the main body and is the aforementioned water treatment system. Because the water purifier uses the aforementioned water treatment system, the frequency of filter replacement can be reduced, giving the water purifier energy-saving and environmentally friendly advantages, and enhancing its competitiveness.

[0111] This application also provides a control method for the above-described water treatment system, referring to... Figure 9 As shown, the method includes the following steps:

[0112] S01, Initiate regeneration mode.

[0113] S02, the pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged from the wastewater pipeline.

[0114] The water treatment system includes an activated carbon water purification unit 1, a pure water tank 2, a heating device 3, and a wastewater pipeline 41. The activated carbon water purification unit 1, the pure water tank 2, and the heating device 3 are connected in sequence. The activated carbon water purification unit 1 is used to purify the water to be purified, the pure water tank 2 is used to store pure water, and the heating device 3 is used to heat the pure water. The heating device 3 is connected to the activated carbon water purification unit 1, and the activated carbon water purification unit 1 is also connected to the wastewater pipeline 41.

[0115] In the control method of the water treatment system of this application embodiment, when the regeneration mode is started, the pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged from the wastewater pipeline. That is, the pure water heated by the heating device 3 can be used as the regeneration medium of the activated carbon water purification unit 1. The life of the activated carbon water purification unit 1 is extended by regenerating it with the heated pure water, which solves the problem of frequent replacement of the activated carbon water purification unit 1. Reducing the replacement frequency of the activated carbon water purification unit 1 can also avoid waste and environmental pollution caused by directly discarding the activated carbon water purification unit 1. The activated carbon water purification unit 1 is regenerated by clean high-temperature pure water, which does not require the addition of auxiliary substances, such as flocculants, chlorine dioxide, etc., which is safer and more energy-saving and environmentally friendly.

[0116] Optional, refer to Figure 10 The diagram illustrates a second control method, which, when applied to the aforementioned water treatment system, includes the following steps:

[0117] S11, obtain the actual purified water volume of the activated carbon water purification unit.

[0118] The actual purified water volume of the activated carbon water purification unit refers to the total amount of purified water after the unit is installed in the water treatment system. This actual purified water volume is obtained in real time.

[0119] S12, determine whether the actual purified water volume is equal to the regenerated purified water volume of the activated carbon water purification unit.

[0120] The regenerated purified water volume is the product of the number of regenerations of the activated carbon water purification unit plus one, and the purified water volume at the first preset interval when the activated carbon water purification unit needs to be regenerated.

[0121] For example, the number of times the activated carbon water purification unit is regenerated is n, the amount of purified water at the first preset interval when the activated carbon water purification unit needs to be regenerated is q, and the amount of purified water regenerated is (n+1)*q.

[0122] Furthermore, when n is greater than or equal to 1, the amount of purified water between two adjacent regeneration phases of the activated carbon water purification unit is the first preset interval amount of purified water.

[0123] S13, when the actual purified water volume equals the regenerated purified water volume, start the regeneration state.

[0124] Where the actual net water volume is Q, then when Q = (n+1) * q, the regeneration state is initiated.

[0125] S14, when starting the regeneration standby state, determine whether the current time is the idle time of the whole machine.

[0126] The idle time of the water dispenser refers to the time during which users will not draw water. This application embodiment does not specifically limit the idle time. For example, the idle time may be a preset time, such as between midnight and 2 AM, during which users will not draw water. Alternatively, the idle time may be a time determined by recording the user's water draw times, during which users will not draw water.

[0127] S15, when the whole machine is in idle time, start the regeneration mode.

[0128] Among them, when the machine is idle, the regeneration mode is activated, which can avoid affecting the user's water supply and enhance user satisfaction.

[0129] Furthermore, when the machine is not in idle time, it returns to the start-up and regeneration state.

[0130] S16, the pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged from the wastewater pipeline.

[0131] Optional, refer to Figure 10 The control method includes the following steps:

[0132] S17. When the actual purified water volume is less than the regenerated purified water volume, determine whether the difference between the regenerated purified water volume and the actual purified water volume is equal to the short-time flushing purified water volume.

[0133] Optionally, the short-time flushing water volume is the product of the number of flushes of the activated carbon water purification unit plus one within the current regeneration mode cycle and the water volume of the activated carbon water purification unit at the second preset interval when flushing is required.

[0134] In the current regeneration cycle, the number of times the activated carbon water purification unit is rinsed is m, and the amount of purified water at the second preset interval when the activated carbon water purification unit needs to be rinsed is p. Then the amount of purified water for short-time rinsing is: (m+1)*p.

[0135] Furthermore, when m is greater than or equal to 1, the amount of purified water between two adjacent rinsing phases of the activated carbon water purification unit is the second preset interval amount of purified water.

[0136] S18, when the difference between the regenerated purified water volume and the actual purified water volume is equal to the short-time flushing purified water volume, the disinfection state is initiated.

[0137] That is, when (n+1)*q-Q=(m+1)*p, the disinfection state is initiated.

[0138] Furthermore, in S21, the disinfection state is not activated when the difference between the regenerated water volume and the actual water volume is not equal to the short-time flushing water volume.

[0139] S19, when starting the disinfection state, activate the short-time rinsing mode.

[0140] In the short-time flushing mode, the activated carbon water purification unit can be disinfected.

[0141] S20, the pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged from the wastewater pipeline.

[0142] Optionally, the duration of the short-time flushing mode is shorter than that of the regeneration mode. In the short-time flushing mode, the activated carbon water purification unit is disinfected; in the regeneration mode, the activated carbon water purification unit is regenerated.

[0143] Optionally, when disinfecting the activated carbon water purification unit, the temperature of the heated pure water is relatively high. When activating the short-time flushing mode, the temperature of the heated pure water is higher than the ambient temperature but less than or equal to 100 degrees Celsius.

[0144] Optionally, when regenerating the activated carbon water purification unit, the temperature of the heated pure water needs to meet the usage requirements. For example, when starting the regeneration mode, the temperature of the heated pure water should be higher than the ambient temperature but less than or equal to 80 degrees Celsius.

[0145] Optionally, the control method applied to the above-mentioned water treatment system includes the following steps: activating the ambient temperature cooling mode.

[0146] Specifically, the pure water heated by the heating device flows into the activated carbon water purification unit, which increases the temperature of the activated carbon water purification unit. Activating the ambient temperature cooling module can cool the activated carbon water purification unit to reduce its temperature. This prevents the high-temperature water flowing from the activated carbon water purification unit 1 into the next stage filter cartridge when the water purification mode is activated due to the high water temperature, thus avoiding performance damage to the next stage filter cartridge.

[0147] Optionally, the ambient temperature cooling mode can be activated, including pure water cooling mode and water to be purified cooling mode.

[0148] In one embodiment, after the pure water heated by the heating device flows into the activated carbon water purification unit, the impurity water discharged from the activated carbon water purification unit is discharged from the wastewater pipeline, and then the process further includes:

[0149] Activate the pure water cooling mode.

[0150] Pure water in the pure water tank flows into the activated carbon water purification unit, and the pure water with increased temperature discharged from the activated carbon water purification unit is discharged through the wastewater pipe.

[0151] In another embodiment, after the pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged through the wastewater pipe, the process further includes...

[0152] Start the cooling mode for the water to be purified.

[0153] The water to be purified flows into the activated carbon water purification unit, and the water to be purified with increased temperature discharged from the activated carbon water purification unit is discharged from the third concentrate outlet through the purification pipeline.

[0154] The water treatment system also includes a purification pipe 42 and a third concentrate outlet 63. One end of the purification pipe 42 is connected to the activated carbon water purification unit 1, and the other end of the purification pipe 42 is connected to the heating device 3. The pure water heated by the heating device 3 flows into the activated carbon water purification unit 1 through the purification pipe 42. The purification pipe 42 is equipped with a third concentrate outlet 63.

[0155] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0156] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. For embodiments of devices, electronic devices, computer-readable storage media, and computer program products containing instructions, the descriptions are relatively simple because they are basically similar to the method embodiments; relevant parts can be referred to the descriptions of the method embodiments.

[0157] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A water treatment system, characterized by, The water treatment system comprises an activated carbon water purification unit (1), a pure water tank (2), a heating device (3) and a waste water pipeline (41); The activated carbon water purification unit (1), the pure water tank (2) and the heating device (3) are sequentially connected and communicated, the activated carbon water purification unit (1) is used for purifying water to be purified, the pure water tank (2) is used for storing pure water, and the heating device (3) is used for heating the pure water; the heating device (3) is communicated with the activated carbon water purification unit (1), and the activated carbon water purification unit (1) is also connected with the waste water pipeline (41); The pure water tank (2) is also communicated with the activated carbon water purification unit (1), and the water treatment system has a pure water cooling mode; in the case that the water treatment system is in the pure water cooling mode, the pure water in the pure water tank (2) flows into the activated carbon water purification unit (1), and the pure water with a temperature increased and discharged from the activated carbon water purification unit (1) is discharged from the waste water pipeline (41); The water treatment system has a regeneration mode, and in the case that the water treatment system is in the regeneration mode, the pure water heated by the heating device (3) flows into the activated carbon water purification unit (1), and the impurity water discharged from the activated carbon water purification unit (1) is discharged from the waste water pipeline (41).

2. The water treatment system of claim 1, wherein, The activated carbon water purification unit (1) comprises a water inlet (11) of the activated carbon water purification unit and a water outlet (12) of the activated carbon water purification unit, the water inlet (11) of the activated carbon water purification unit is communicated with the waste water pipeline (41) and used for flowing into the water to be purified, and the water outlet (12) of the activated carbon water purification unit is communicated with the pure water tank (2) and the heating device (3); the water treatment system also has a water production mode; In the case that the water treatment system is in the water production mode, the water to be purified flows into the activated carbon water purification unit (1) through the water inlet (11) of the activated carbon water purification unit, and the water to be purified is discharged from the water outlet (12) of the activated carbon water purification unit after being purified by the activated carbon water purification unit (1); In the case that the water treatment system is in the regeneration mode, the pure water heated by the heating device (3) flows into the activated carbon water purification unit (1) through the water outlet (12) of the activated carbon water purification unit, and the impurity water is discharged from the water inlet (11) of the activated carbon water purification unit.

3. The water treatment system of claim 1, wherein, The water treatment system further comprises a first control valve (51), a second control valve (52) and a third control valve (53); The first port of the first control valve (51) is connected with the activated carbon water purification unit (1), the second port of the first control valve (51) is connected with the second port of the second control valve (52) and the second port of the third control valve (53), and the third port of the first control valve (51) is communicated with the pure water tank (2); The first port of the first control valve (51) is connected with the activated carbon water purification unit (1), the second port of the first control valve (51) is connected with the second port of the second control valve (52) and the second port of the third control valve (53), and the third port of the first control valve (51) is communicated with the pure water tank (2); The first port of the first control valve (51) is connected with the activated carbon water purification unit (1), the second port of the first control valve (51) is connected with the second port of the second control valve (52) and the second port of the third control valve (53), and the third port of the first control valve (51) is communicated with the pure water tank (2); The first port of the third control valve (53) is connected with the heating device (3); When the water treatment system is in the water making mode, the first port of the first control valve (51) and the third port of the first control valve (51) are communicated, the first port of the second control valve (52) and the third port of the second control valve (52) are communicated, and the third control valve (53) is closed; When the water treatment system is in the regeneration mode, the first port of the second control valve (52) and the third port of the second control valve (52) are communicated, the first port of the third control valve (53) and the second port of the third control valve (53) are communicated, and the first port of the first control valve (51) and the second port of the first control valve (51) are communicated; When the water treatment system is in the pure water cooling mode, the first port of the second control valve (52) and the second port of the second control valve (52) are communicated, the first port of the first control valve (51) and the second port of the first control valve (51) are communicated, and the third control valve (53) is closed.

4. The water treatment system of claim 1, wherein, The water treatment system further comprises a purification pipeline (42), one end of the purification pipeline (42) being connected with the activated carbon water purification unit (1), and the other end of the purification pipeline (42) being connected with the heating device (3); The pure water heated by the heating device (3) flows into the activated carbon water purification unit (1) through the purification pipeline (42).

5. The water treatment system of claim 4, wherein, The water treatment system further comprises a fourth control valve (54), a fifth control valve (55) and a sixth control valve (56); The first port of the fourth control valve (54) is connected with the activated carbon water purification unit (1) and the first port of the fifth control valve (55), and the second port of the fourth control valve (54) is communicated with the pure water tank (2); The second port of the fifth control valve (55) is connected with the first port of the sixth control valve (56), and the second port of the sixth control valve (56) is connected with the heating device (3); When the water treatment system is in the water making mode, the first port of the fourth control valve (54) and the second port of the fourth control valve (54) are communicated, the fifth control valve (55) is disconnected, and the first port of the sixth control valve (56) and the second port of the sixth control valve (56) are disconnected; When the water treatment system is in the regeneration mode, the first port of the sixth control valve (56) and the second port of the sixth control valve (56) are communicated, the first port of the fifth control valve (55) and the second port of the fifth control valve (55) are communicated, and the fourth control valve (54) is disconnected.

6. The water treatment system of claim 4, wherein, The purification pipeline (42) is provided with a third concentrated water port (63), and the water treatment system has a to-be-purified water cooling mode; When the water treatment system is in the to-be-purified water cooling mode, the to-be-purified water flows into the activated carbon water purification unit (1), and the to-be-purified water with increased temperature discharged from the activated carbon water purification unit (1) is discharged from the third concentrated water port (63) through the purification pipeline (42).

7. The water treatment system of claim 6, wherein, The water treatment system further comprises a fourth control valve (54), a fifth control valve (55), and a sixth control valve (56), a third port of the sixth control valve (56) being connected with the third concentrated water port (63); When the water treatment system is in the water cooling mode, the fourth control valve (54) is opened, the first port of the fifth control valve (55) and the second port of the fifth control valve (55) are communicated, and the first port of the sixth control valve (56) and the third port of the sixth control valve (56) are communicated.

8. The water treatment system of claim 1, wherein, The water treatment system further comprises a water outlet (65), the heating device (3) being connected with the water outlet (65), and the pure water heated by the heating device (3) flowing out from the water outlet (65).

9. The water treatment system of claim 1, wherein, The water treatment system further comprises a pretreatment unit (7), a precision water purification unit (8), and a post-treatment unit (9); the pretreatment unit (7), the activated carbon water purification unit (1), the precision water purification unit (8), the post-treatment unit (9), the pure water tank (2), and the heating device (3) are connected in sequence; or, the pretreatment unit (7), the activated carbon water purification unit (1), the precision water purification unit (8), the pure water tank (2), the post-treatment unit (9), and the heating device (3) are connected in sequence.

10. The water treatment system of claim 1, wherein, The activated carbon water purification unit (1) comprises activated carbon.

11. A water purifier characterized by comprising: The device comprises a device body and a water treatment system, the water treatment system being arranged in the device body, and the water treatment system being the water treatment system according to any one of claims 1-10.

12. A control method applied to the water treatment system according to any one of claims 1-10, wherein, a regeneration mode is started; the pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged from the waste water pipeline.

13. The control method according to claim 12, characterized by, Before starting the regeneration mode, the method further comprises the following steps: an actual water purification amount of the activated carbon water purification unit is obtained; it is determined whether the actual water purification amount is equal to a regeneration water purification amount of the activated carbon water purification unit; when the actual water purification amount is equal to the regeneration water purification amount, a regeneration standby state is started; when the regeneration standby state is started, it is determined whether the current time is an idle time of the whole machine; when the whole machine is in the idle time, the regeneration mode is started.

14. The control method according to claim 13, characterized by, The regeneration water purification amount is a product of a regeneration frequency of the activated carbon water purification unit plus one and a first preset interval water purification amount when the activated carbon water purification unit needs to be regenerated.

15. The control method according to claim 13, characterized by, The control method further comprises: when the actual water purification amount is less than the regeneration water purification amount, it is determined whether a difference between the regeneration water purification amount and the actual water purification amount is equal to a short-time flushing water purification amount; when the difference between the regeneration water purification amount and the actual water purification amount is equal to the short-time flushing water purification amount, a disinfection standby state is started; when the disinfection standby state is started, a short-time flushing mode is started; the pure water heated by the heating device flows into the activated carbon water purification unit, and the impurity water discharged from the activated carbon water purification unit is discharged from the waste water pipeline.

16. The control method according to claim 15, characterized by The short-time flushing water amount is a product of the flushing number of the activated carbon water purification unit plus one and a second preset interval water amount when the activated carbon water purification unit needs to be flushed, within a current regeneration mode cycle.

17. The control method according to claim 15, characterized by, The short-time flushing mode has a time length less than that of the regeneration mode.

18. The control method according to claim 15, characterized by, When the short-time flushing mode is started, the temperature of the heated pure water is greater than the ambient temperature and less than or equal to 100 degrees Celsius.

19. The control method according to claim 12, wherein When the regeneration mode is started, the temperature of the heated pure water is greater than the ambient temperature and less than or equal to 80 degrees Celsius.

20. The control method according to claim 12, wherein After the pure water heated by the heating device flows into the activated carbon water purification unit and the impurity water discharged from the activated carbon water purification unit is discharged from the waste water pipeline, the method further comprises: starting a pure water cooling mode; The pure water in the pure water tank flows into the activated carbon water purification unit, and the temperature of the pure water discharged from the activated carbon water purification unit is increased and discharged from the waste water pipeline.

21. The control method according to claim 12, wherein After the pure water heated by the heating device flows into the activated carbon water purification unit and the impurity water discharged from the activated carbon water purification unit is discharged from the waste water pipeline, the method further comprises: starting a to-be-purified water cooling mode; The to-be-purified water flows into the activated carbon water purification unit, and the temperature of the to-be-purified water discharged from the activated carbon water purification unit is increased and discharged from the waste water pipeline.

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