Water treatment apparatus and control method thereof

Abstract

This water treatment apparatus comprises: a first electrodeionization device which removes a first ionic material from raw water; a second electrodeionization device which removes a second ionic material having a different charge amount from the first ionic material from the raw water; a first storage chamber; a second storage chamber; a purified water flow path along which flows purified water obtained by removing at least one of the first ionic material or the second ionic material; a first ion flow path which guides first stored water stored in the first storage chamber to the purified water flow path; a second ion flow path which guides second stored water stored in the second storage chamber to the purified water flow path; at least one ion valve which opens and closes the first ion flow path and the second ion flow path; and a controller which controls the first electrodeionization device, the second electrodeionization device, and the at least one ion valve.

Description

Water treatment device and control method of water treatment device

[0001] The present disclosure relates to a water treatment device using an electrochemical desalination technology and a control method for the water treatment device.

[0002] Desalination technology is a technology that is widely demanded across industries, such as removing hardness components such as calcium and magnesium from areas with high hardness of water to use it for drinking or boiler water, or as cooling water for power plants or factories.

[0003] Electrochemical deionization (ED) is a technology that removes ions by electrochemically adsorbing them on an electrode. Examples of ED include electrodialysis (ED), electrodeionization (EDI), and capacitive deionization (CDI).

[0004] Electrochemical desalination technology creates an electric field through electrodes included in the filter to move and remove ions, thereby producing purified water that removes ions contained in raw water.

[0005] Depending on the intended use of purified water, the concentration of ions in purified water must be maintained at a certain level. For example, in the case of coffee, if the concentration of ions in purified water is too low, the taste and aroma of the coffee can be impaired. Therefore, when using purified water for coffee, it is necessary to ensure that the ion concentration exceeds a certain level.

[0006] The present disclosure can provide a water treatment device capable of controlling the concentration of ions contained in purified water and a control method of the water treatment device.

[0007] The present disclosure can provide a water treatment device capable of controlling the concentration of ions contained in purified water according to the type of ion, and a control method for the water treatment device.

[0008] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0009] A water treatment device according to one embodiment of the present disclosure comprises: a first electro-deionization device for removing a first ionic substance from raw water; a second electro-deionization device for removing a second ionic substance having a different charge from the first ionic substance from the raw water; a first storage chamber for receiving the first ionic substance desorbed from the first electro-deionization device by a regeneration process of the first electro-deionization device; a second storage chamber for receiving the second ionic substance desorbed from the second electro-deionization device by a regeneration process of the second electro-deionization device; a purified water passage through which purified water from which at least one of the first ionic substance or the second ionic substance is removed by the first electro-deionization device and the second electro-deionization device flows; a first ion passage for guiding first storage water stored in the first storage chamber to the purified water passage; a second ion passage for guiding second storage water stored in the second storage chamber to the purified water passage; at least one ion valve for opening and closing the first ion passage and the second ion passage; And it may include a control unit for controlling the first electric deionization device, the second electric deionization device, and at least one ion valve.

[0010] A control method of a water treatment device according to one embodiment of the present disclosure comprises a first electro-deionization device for removing a first ionic substance from raw water, a second electro-deionization device for removing a second ionic substance having a different charge from the first ionic substance from the raw water, a first storage chamber for receiving the first ionic substance desorbed from the first electro-deionization device by a regeneration process of the first electro-deionization device, a second storage chamber for receiving the second ionic substance desorbed from the second electro-deionization device by a regeneration process of the second electro-deionization device, a purified water passage through which purified water from which at least one of the first ionic substance or the second ionic substance is removed by the first electro-deionization device and the second electro-deionization device flows, a first ion passage for guiding first storage water stored in the first storage chamber to the purified water passage, a second ion passage for guiding second storage water stored in the second storage chamber to the purified water passage, and at least one ion valve for opening and closing the first ion passage and the second ion passage, the control method of a water treatment device comprising the first electro-deionization device, the second electro-deionization device, It may include controlling a deionization device and at least one ion valve;

[0011] According to the present disclosure, there is an effect of being able to produce purified water suitable for the intended use of the purified water by adjusting the concentration of ions contained in the purified water according to the intended use of the purified water.

[0012] Figure 1 illustrates an example of a conceptual diagram of a water treatment device according to one embodiment.

[0013] Figure 2 is a control block diagram of a water treatment device according to one embodiment.

[0014] Figure 3 illustrates an example of a flowchart of a control method of a water treatment device according to one embodiment.

[0015] Figure 4 is a conceptual diagram for explaining the movement of ions that occurs when a water treatment device according to one embodiment performs a deionization process.

[0016] FIG. 5 is a conceptual diagram for explaining the movement of ions that occurs when a water treatment device according to one embodiment performs a regeneration process.

[0017] Figure 6 is a conceptual diagram for explaining the movement of ions that occurs when a water treatment device according to one embodiment performs a deionization process.

[0018] Figure 7 is a conceptual diagram for explaining the movement of ions that occurs when a water treatment device according to one embodiment performs a regeneration process.

[0019] Figure 8 illustrates an example of water flow when a water treatment device according to one embodiment performs a deionization process.

[0020] FIG. 9 illustrates an example of the flow of water when a water treatment device according to one embodiment performs a regeneration process.

[0021] Fig. 10 illustrates an example of a flowchart of a control method of a water treatment device according to one embodiment.

[0022] Fig. 11 illustrates an example of a flowchart of a control method of a water treatment device according to one embodiment.

[0023] FIG. 12 illustrates an example of the flow of water when a water treatment device according to one embodiment produces purified water.

[0024] FIG. 13 illustrates an example of a user interface for adjusting the concentration of ionic substances in purified water according to user settings provided by a water treatment device according to one embodiment.

[0025] Fig. 14 illustrates an example of a flowchart of a control method of a water treatment device according to one embodiment.

[0026] Fig. 15 illustrates an example of a flowchart of a control method of a water treatment device according to one embodiment.

[0027] FIG. 16 illustrates an example of the flow of water when a water treatment device according to one embodiment performs a regeneration process or a discharge process.

[0028] It should be understood that the various embodiments and terms used in this document are not intended to limit the technical features described in this document to specific embodiments, but rather to include various modifications, equivalents, or substitutes of the embodiments.

[0029] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0030] The singular form of a noun corresponding to an item may include one or more of said items, unless the relevant context clearly indicates otherwise.

[0031] In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof.

[0032] The term "and / or" includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0033] The terms "part," "module," and "member" may be implemented in hardware or software. Depending on the embodiments, multiple "parts," "modules," or "members" may be implemented as a single component, or a single "part," "module," or "member" may include multiple components.

[0034] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0035] When a component (e.g., a first component) is referred to as being "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0036] The terms "include" or "have" are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in this document, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0037] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0038] When we say that a component is "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0039] Meanwhile, the terms "front", "back", "left", "right", "upper", "lower", etc. used in the following description are defined based on the drawing, but the shape and position of each component are not limited by the above terms. For example, the front side may be defined as the +X side, and the rear side may be defined as the -X side. For example, based on the drawing, the right side may be defined as the +Y side, and the left side may be defined as the -Y side. For example, based on the drawing, the upper side may be defined as the +Z side, and the lower side may be defined as the -Z side.

[0040] Water treatment devices, according to various embodiments, can purify contaminated water and make it clean. Water treatment devices are used in sewage treatment facilities, industrial processes, and water supply systems in homes and offices, playing a vital role in environmental protection and human health. Water purified by water treatment devices can be released back into the environment, used for cleaning, used as drinking water, or reused in industrial processes.

[0041] According to various embodiments, the water treatment device may include not only a household water treatment device such as a water purifier or a water softener, but also an industrial water treatment device.

[0042] Water treatment devices can produce purified water by purifying raw water introduced from outside through various methods, such as biological treatment methods, chemical treatment methods, and physical treatment methods.

[0043] A water treatment device according to one embodiment can produce purified water by purifying raw water introduced from an external source using an electrochemical method, among chemical treatment methods. For example, the water treatment device can produce purified water by purifying raw water introduced from an external source using at least one of electrodialysis (ED), electrodeionization (EDI), and capacitive deionization (CDI).

[0044] Hereinafter, for convenience of explanation, a water treatment device according to one embodiment is described as a device that generates purified water from raw water introduced from outside through a capacitive deionization method.

[0045] Capacitive deionization refers to a method for removing ions from externally introduced raw water by utilizing the principle of ions being adsorbed and desorbed from the surface of electrodes by the electrical force generated between the electrodes. In this specification, removing ions from externally introduced raw water may include removing ionic substances from the externally introduced raw water.

[0046] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0047] Figure 1 illustrates an example of a conceptual diagram of a water treatment device according to one embodiment.

[0048] Referring to FIG. 1, a water treatment device (1) according to one embodiment can store raw water or treat water supplied from a water source (15) from which raw water is supplied from an external source. The raw water may include water to be treated by the water treatment device (1).

[0049] The water treatment device (1) may include a pump (16) that pumps external raw water (e.g., raw water supplied from a water source (15)).

[0050] The water treatment device (1) may include a raw water guide (21) configured to allow raw water pumped by the pump (16) to flow.

[0051] The raw water pumped by the pump (16) can flow through the raw water guide (21). The raw water guide (21) can form a raw water path through which the raw water pumped by the pump (16) flows.

[0052] A pre-filter (101) may be provided in the raw water guide (21). The pre-filter (101) receives raw water pumped by the pump (16) and removes relatively large particulate matter, dust, sand, and other substances contained in the raw water, or removes organic chemicals, carcinogens, and residual chlorine contained in the raw water.

[0053] In one embodiment, the water treatment device (1) may include a plurality of electro-deionization devices (110, 120) capable of removing ionic substances contained in raw water and / or a plurality of storage rooms (210, 220) for storing storage water for supplying ionic substances to purified water from which ionic substances have been removed through the plurality of electro-deionization devices (110, 120).

[0054] The plurality of electro-deionization devices (110, 120) may include a first electro-deionization device (110) capable of removing a first ionic substance from the raw water and / or a second electro-deionization device (120) capable of removing a second ionic substance having a different charge from the first ionic substance from the raw water.

[0055] The first electrodeionization device (110) can remove the first ionic substance from the raw water using an electrochemical method (e.g., electrodialysis (ED), electrodeionization (EDI), and capacitive deionization (CDI)). The first ionic substance can include a cation having a single charge. For example, the first ionic substance can be a sodium ion (Na). + ), potassium ions (K + ) may be included.

[0056] The second electrodeionization device (120) can remove a second ionic substance from the raw water using an electrochemical method (e.g., electrodialysis (ED), electrodeionization (EDI), and capacitive deionization (CDI)). The second ionic substance may include an ionic substance having a different charge from the first ionic substance. The second ionic substance may include a cation having a divalent charge. For example, the second ionic substance may be a magnesium ion (Mg 2+ ), calcium ions (Ca2+ ) may be included.

[0057] The number of electric deionization devices is not limited thereto, and may be three or more or may consist of one device according to various embodiments.

[0058] As illustrated in FIG. 1, the first electric deionization device (110) and the second electric deionization device (120) according to the present disclosure can be connected in series between the raw water guide (21) and the outlet guide (27).

[0059] However, the first electric deionization device (110) and the second electric deionization device (120) according to the present disclosure may be connected in parallel between the raw water guide (21) and the discharge guide (27), unlike as shown in FIG. 1.

[0060] The plurality of storage chambers (210, 220) may include a first storage chamber (210) storing first storage water for supplying a first ionic substance and / or a second storage chamber (220) storing second storage water for supplying a second ionic substance.

[0061] The number of storage rooms is not limited thereto, and may be three or more or may consist of one, depending on various embodiments.

[0062] The water treatment device (1) may include a first inflow guide (22) configured to allow water flowing from a raw water guide (21) or from a first circulation guide (28a) to flow. Water flowing from the first inflow guide (22) may be introduced into a first electro-deionization device (110).

[0063] The water treatment device (1) may include a first circulation guide (28a) configured to allow water stored in the first storage room (210) to flow.

[0064] The water treatment device (1) may include a first circulation valve (31a) configured to allow water flowing from the raw water guide (21) to flow into the first inlet guide (22) or to allow water flowing from the first circulation guide (28a) to flow into the first inlet guide (22).

[0065] The first circulation valve (31a) can block or allow the flow of water flowing from the raw water guide (21). When the first circulation valve (31a) allows the flow of water flowing from the raw water guide (21), the water flowing from the raw water guide (21) can flow into the first inlet guide (22).

[0066] The first circulation valve (31a) can block or allow the flow of water from the first circulation guide (28a). When the first circulation valve (31a) allows the flow of water from the first circulation guide (28a), the water flowing from the first circulation guide (28a) can flow into the first inlet guide (22).

[0067] The water treatment device (1) may include a second inlet guide (23) configured to allow water flowing from the first electric deionization device (110) to flow. The water treatment device (1) may include a second circulation guide (28b) configured to allow water flowing from the second inlet guide (23) to flow. The water treatment device (1) may include a third circulation guide (28c) configured to allow water stored in the second storage chamber (220) to flow.

[0068] The water treatment device (1) may include a third inflow guide (24) configured to allow water flowing from the second inflow guide (23) or water flowing from the third circulation guide (28c) to flow. Water flowing from the third inflow guide (24) may flow into the second electro-deionization device (120).

[0069] The water treatment device (1) may include a second circulation valve (31b) configured to allow water flowing from the second inflow guide (23) to flow into the third inflow guide (24), or allow water flowing from the second inflow guide (23) to flow into the second circulation guide (28b), or allow water flowing from the third circulation guide (28c) to flow into the third inflow guide (24).

[0070] The second circulation valve (31b) can allow or block water flowing from the second inlet guide (23) from flowing into the second circulation guide (28b) or the third inlet guide (24).

[0071] For example, the second circulation valve (31b) can allow water flowing from the second inlet guide (23) to flow into the second circulation guide (28b) and block water flowing from the second inlet guide (23) from flowing into the third inlet guide (24).

[0072] As another example, the second circulation valve (31b) can allow water flowing from the second inlet guide (23) to flow into the third inlet guide (24) and block water flowing from the second inlet guide (23) from flowing into the second circulation guide (28b).

[0073] The second circulation valve (31b) can allow or block the water flowing from the third circulation guide (28c) from flowing into the third inlet guide (24). When the second circulation valve (31b) allows the water flowing from the third circulation guide (28c) to flow into the third inlet guide (24), the water flowing from the third circulation guide (28c) can flow into the third inlet guide (24).

[0074] The water treatment device (1) may include a first discharge guide (25) configured to allow water flowing from a second electro-deionization device (120) to flow. The water treatment device (1) may include a fourth circulation guide (28d) configured to allow water flowing from the first discharge guide (25) to flow. The water treatment device (1) may include a second discharge guide (26) configured to allow water flowing from the first discharge guide (25) to flow.

[0075] The water treatment device (1) may include a third circulation valve (31c) configured to allow water flowing from the first discharge guide (25) to flow into the second discharge guide (26), or to allow water flowing from the first discharge guide (25) to flow into the fourth circulation guide (28b).

[0076] The third circulation valve (31c) can allow or block water flowing from the first discharge guide (25) from flowing into the second discharge guide (25).

[0077] The third circulation valve (31c) can allow or block water flowing from the first discharge guide (25) from flowing to the fourth circulation guide (28d).

[0078] When the third circulation valve (31c) allows water flowing from the first discharge guide (25) to flow into the second discharge guide (25) and blocks water flowing from the first discharge guide (25) from flowing into the fourth circulation guide (28d), water flowing from the first discharge guide (25) can only flow into the second discharge guide (26).

[0079] When the third circulation valve (31c) allows water flowing from the first discharge guide (25) to flow to the fourth circulation guide (28d) and blocks water flowing from the first discharge guide (25) from flowing to the second discharge guide (26), water flowing from the first discharge guide (25) can only flow to the fourth circulation guide (28d).

[0080] The water treatment device (1) may include an outlet guide (27) configured to allow water flowing from the second outlet guide (26), water flowing from the first ion guide (29a), or water flowing from the second ion guide (29b) to flow.

[0081] The water treatment device (1) may include a first ion guide (29a) configured to allow water stored in a first storage chamber (210) to flow. The water treatment device (1) may include a second ion guide (29b) configured to allow water stored in a second storage chamber (220) to flow.

[0082] The water treatment device (1) may include an ion valve (32) configured to allow water flowing from the second discharge guide (26) to flow into the outlet guide (27), water flowing from the first ion guide (29a) to flow into the outlet guide (27), or water flowing from the second ion guide (29b) to flow into the outlet guide (27).

[0083] The ion valve (32) can allow or block water flowing from the second outlet guide (26) from flowing into the outlet guide (27). When the ion valve (32) allows water flowing from the second outlet guide (26) to flow into the outlet guide (27), water flowing from the second outlet guide (26) can flow into the outlet guide (27).

[0084] The ion valve (32) can allow or block water flowing from the first ion guide (29a) from flowing into the outlet guide (27). When the ion valve (32) allows water flowing from the first ion guide (29a) to flow into the outlet guide (27), water flowing from the first ion guide (29a) can flow into the outlet guide (27).

[0085] The ion valve (32) can allow or block water flowing from the second ion guide (29b) from flowing into the outlet guide (27). When the ion valve (32) allows water flowing from the second ion guide (29b) to flow into the outlet guide (27), water flowing from the second ion guide (29b) can flow into the outlet guide (27).

[0086] A post-filter (102) may be provided in the water discharge guide (27). The post-filter (102) may perform the function of removing unpleasant tastes, odors, fragrances, etc. of purified water filtered through the pre-filter (101) and multiple electric deionization devices (110, 120).

[0087] Water filtered through the post filter (102) can be discharged through the discharge member (80).

[0088] The water treatment device (1) may include a first discharge guide (250a) for discharging water stored in the first storage chamber (210) to the outside. The water stored in the first storage chamber (210) may flow through the first discharge guide (250a).

[0089] The water treatment device (1) may include a second discharge guide (250b) for discharging water stored in the second storage chamber (220) to the outside. The water stored in the second storage chamber (220) may flow through the second discharge guide (250b).

[0090] The water treatment device (1) may include an outlet (251) through which water flowing from a first discharge guide (250a) or from a second discharge guide (250b) flows. Water flowing through the outlet (251) may be discharged to the outside.

[0091] The water treatment device (1) may include a discharge valve (33) configured to allow water flowing from the first discharge guide (250a) to flow into the discharge port (251) or to allow water flowing from the second discharge guide (250b) to flow into the discharge port (251).

[0092] The discharge valve (33) can allow or block water flowing from the first discharge guide (250a) from flowing into the discharge port (251). When the discharge valve (33) allows water flowing from the first discharge guide (250a) to flow into the discharge port (251), water flowing from the first discharge guide (250a) can flow into the discharge port (251).

[0093] The discharge valve (33) can allow or block water flowing from the second discharge guide (250b) from flowing into the discharge port (251). When the discharge valve (33) allows water flowing from the second discharge guide (250b) to flow into the discharge port (251), water flowing from the second discharge guide (250b) can flow into the discharge port (251).

[0094] The water treatment device (1) may include a hardness sensor (50) capable of measuring the hardness of water flowing in at least one of the raw water guide (21), the second inlet guide (23), the first ion guide (29a), the second ion guide (29b) and / or the second outlet guide (26).

[0095] The hardness of water may include the concentration of ionic substances contained in the water. For example, the hardness of water may include the concentration of a first ionic substance contained in the water or the concentration of a second ionic substance contained in the water.

[0096] The hardness sensor (50) may include a first hardness sensor (50a) capable of measuring the hardness of water flowing in the raw water guide (21), a second hardness sensor (50b) capable of measuring the hardness of water flowing in the second inlet guide (23), a third hardness sensor (50c) capable of measuring the hardness of water flowing in the second outlet guide (26), a fourth hardness sensor (50d) capable of measuring the hardness of water flowing in the first ion guide (29a), and / or a fifth hardness sensor (50e) capable of measuring the hardness of water flowing in the second ion guide (29b).

[0097] The location or number of the hardness sensor (50) is not limited thereto, and the water treatment device (1) according to various embodiments may include a sensor capable of measuring the hardness of water flowing through the water treatment device (1).

[0098] Figure 2 is a control block diagram of a water treatment device according to one embodiment.

[0099] Referring to FIG. 2, a water treatment device (1) according to one embodiment may include a user interface (40), a hardness sensor (50), a communication unit (60), a first electric deionization device (110), a second electric deionization device (120), a pump (16), at least one circulation valve (31), at least one ion valve (32), at least one discharge valve (33), and / or a control unit (70).

[0100] The user interface (40) may include at least one input interface (41) and at least one output interface (42).

[0101] At least one input interface (41) can convert sensory information received from a user into an electrical signal.

[0102] At least one input interface (41) may include a power input interface for turning on the power of the water treatment device (1), an operation input interface for starting the operation of the water treatment device (1), and a setting input interface. The at least one input interface (41) may include, for example, a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touch pad, a touch screen, a jog dial, and / or a microphone.

[0103] At least one output interface (42) can transmit various information related to the operation of the water treatment device (1) to the user by generating sensory information.

[0104] For example, at least one output interface (42) can transmit to the user the operating time of the water treatment device (1), information related to the settings of the water treatment device (1), and information obtained from the hardness sensor (50). The information of the water treatment device (1) can be output to a screen, an indicator, a voice, etc. The at least one output interface (42) can include, for example, a liquid crystal display (LCD) panel, a light emitting diode (LED) panel, a speaker, etc.

[0105] The hardness sensor (50) can measure the hardness of water flowing through the water treatment device (1). For example, the hardness sensor (50) can measure the first ionic concentration of water flowing through the water treatment device (1). The hardness sensor (50) can measure the second ionic concentration of water flowing through the water treatment device (1).

[0106] Information about the hardness of water measured by the hardness sensor (50) can be transmitted to the control unit (70).

[0107] The water treatment device (1) may include a communication unit (60) for communicating with an external device (e.g., a server, a user device, and / or a home appliance) via wires and / or wirelessly.

[0108] The communication unit (60) may include at least one of a short-range communication module or a long-range communication module.

[0109] The communication unit (60) can transmit data to an external device or receive data from an external device. For example, the communication unit (60) can establish communication with a server, a user device, and / or a home appliance, and transmit and receive various types of data.

[0110] To this end, the communication unit (60) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between external devices, and the performance of communication through the established communication channel. According to one embodiment, the communication unit (60) can include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with the external device through a first network (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These different types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips).

[0111] The short-range wireless communication module may include, but is not limited to, a Bluetooth communication module, a BLE (Bluetooth Low Energy) communication module, a near field communication module, a WLAN (Wi-Fi) communication module, a Zigbee communication module, an infrared (IrDA, infrared Data Association) communication module, a WFD (Wi-Fi Direct) communication module, an UWB (ultrawideband) communication module, an Ant+ communication module, a microwave (uWave) communication module, etc.

[0112] The long-distance communication module may include a communication module that performs various types of long-distance communication and may include a mobile communication unit (60). The mobile communication unit (60) transmits and receives wireless signals with at least one of a base station, an external terminal, and a server on a mobile communication network.

[0113] In one embodiment, the communication unit (60) can communicate with external devices such as a server, user devices, and home appliances through a surrounding access point (AP). The access point (AP) can connect a local area network (LAN) to which the water treatment device (1), home appliances, and / or user devices are connected to a wide area network (WAN) to which the server is connected. The water treatment device (1), home appliances, and / or user devices can be connected to the server through the wide area network (WAN).

[0114] The communication unit (60) can receive information about the hardness of water flowing through the water treatment device (1) from an external device.

[0115] For example, if a sensor for measuring the hardness of water flowing through the water treatment device (1) is installed outside the water treatment device (1), the communication unit (60) can receive information about the hardness of water flowing through the water treatment device (1) from the sensor installed outside the water treatment device (1).

[0116] Information acquired by the communication unit (60) can be transmitted to the control unit (70).

[0117] The control unit (70) can control various components of the water treatment device (1) (e.g., a user interface (40), a hardness sensor (50), a communication unit (60), a first electric deionization device (110), a second electric deionization device (120), a pump (16), at least one circulation valve (31), at least one ion valve (32), and / or at least one discharge valve (33)). For example, the control unit (70) can control the voltage applied to the first electric deionization device (110) and the second electric deionization device (120).

[0118] The control unit (70) may include hardware such as a CPU, Micom, or memory, and software such as a control program. For example, the control unit (70) may include at least one memory (72) storing data in the form of a program, an algorithm for controlling the operation of components within the water treatment device (1), and at least one processor (71) that performs the operations described above and operations to be described below using data stored in the at least one memory (72). The memory (72) and the processor (71) may each be implemented as separate chips. The processor (71) may include one or more processor chips or one or more processing cores. The memory (72) may include one or more memory chips or one or more memory blocks. In addition, the memory (72) and the processor (71) may be implemented as a single chip.

[0119] The control unit (70) may be electrically connected to a user interface (40), a hardness sensor (50), a communication unit (60), a first electric deionization device (110), a second electric deionization device (120), a pump (16), at least one circulation valve (31), at least one ion valve (32), and / or at least one discharge valve (33).

[0120] The pump (16) can pump external raw water according to a control signal from the control unit (70).

[0121] At least one circulation valve (31) can change the flow of water according to a control signal from the control unit (70). In addition, the control unit (70) can adjust the opening amount of the at least one circulation valve (31) according to the control signal. The at least one circulation valve (31) may include a first circulation valve (31a), a second circulation valve (31b), and / or a third circulation valve (31c).

[0122] At least one ion valve (32) can change the flow of water according to a control signal from the control unit (70). In addition, the control unit (70) can adjust the opening amount of at least one ion valve (32) according to the control signal.

[0123] At least one discharge valve (33) can change the flow of water according to a control signal from the control unit (70). In addition, the control unit (70) can adjust the opening amount of at least one discharge valve (33) according to the control signal.

[0124] Figure 3 illustrates an example of a flowchart of a control method of a water treatment device according to one embodiment.

[0125] Referring to FIG. 3, the water treatment device (1) can perform a deionization process (1000). The deionization process (1000) can include a process of removing first ionic substances and second ionic substances of the raw water through a first electro-deionization device (110) and a second electro-deionization device (120). For example, the deionization process (1000) can include a process of removing both first ionic substances and second ionic substances contained in the raw water.

[0126] The deionization process (1000) may include a process of removing one of the first ionic substance of the raw water and the second ionic substance of the raw water through the first electro-deionization device (110) or the second electro-deionization device (120).

[0127] The water treatment device (1) can perform a regeneration process (1100).

[0128] The regeneration process (1100) may include a process of desorbing a first ionic material adsorbed on a first electro-deionization device (110) and a process of desorbing a second ionic material adsorbed on a second electro-deionization device (120).

[0129] The regeneration process (1100) may include a process of desorbing a first ionic material adsorbed on a first electro-deionization device (110) or a process of desorbing a second ionic material adsorbed on a second electro-deionization device (120).

[0130] The order, operation time, cycle and / or number of times in which the deionization process (1000) and the regeneration process (1100) are performed are not limited to those shown in FIG. 3.

[0131] For example, the operation time of the deionization process (1000) may be longer than the operation time of the regeneration process (1100). For another example, if a predetermined time has passed after performing the regeneration process (1100), the deionization process (1000) may be performed again.

[0132] Figure 4 is a conceptual diagram for explaining the movement of ions that occurs when a water treatment device according to one embodiment performs a deionization process.

[0133] Referring to FIG. 4, the first electro-deionization device (110) may include a first electrode (11ab), a second electrode (12ab), a first anion exchange membrane (11c), and / or a first cation exchange membrane (12c).

[0134] The first electrode (11ab) and the second electrode (12ab) can be arranged to face each other, and the first electrode (11ab) and the second electrode (12ab) arranged to face each other can form a capacitor.

[0135] The first electrode (11ab) may include a first current collector (11a) and a first porous electrode (11b).

[0136] The material of the first collector (11a) may be a conductor.

[0137] The first porous electrode (11b) may include a solid electrode including a void space. The first porous electrode (11b) may be made of a material that is easy to adsorb ions. For example, the first porous electrode (11b) may be a carbon porous electrode, but the type of the first porous electrode (11b) is not limited thereto. The first porous electrode (11b)

[0138] The second electrode (12ab) may include a second current collector (12a) and a second porous electrode (12b).

[0139] The material of the second collector (12a) may be a conductor.

[0140] The second porous electrode (12b) may include a solid electrode including void space. The second porous electrode (12b) may be made of a material that is easy to adsorb ions. For example, the second porous electrode (12b) may be a carbon porous electrode, but the type of the second porous electrode (12b) is not limited thereto.

[0141] The second porous electrode (12b) may be made of a material that is easy to adsorb the first ionic substance. For example, the second porous electrode (12b) may be made of a material that is easy to adsorb the first ionic substance. For example, the second porous electrode (12b) may be made of a monovalent cation (e.g., sodium ion (Na) + ), potassium ions (K + )) may include a zeolite material that is easy to adsorb.

[0142] The first electric deionization device (110) may include a first housing (101) connected to a first inlet guide (22) and a second inlet guide (23).

[0143] The first electric deionization device (110) may include a first channel (11) formed by a first current collector (11a) and a first anion exchange membrane (11c), a second channel (12) formed by a second current collector (12a) and a first cation exchange membrane (12c), and a third channel (13) formed by the first ion exchange membrane (11c) and a cation exchange membrane (12c).

[0144] The first channel (11), the second channel (12), and the third channel (13) may be fluidically connected to each other. For example, fluid in the third channel (13) may be able to move to the first channel (11) and / or the second channel (12), and conversely, fluid in the first channel (11) and / or the second channel (12) may be able to move to the third channel (13).

[0145] The first cation exchange membrane (12c) may include a membrane that allows only cations to pass through among cations and anions. The first cation exchange membrane (12c) has a negative charge, so it repels anions and does not allow only cations to pass through.

[0146] The first anion exchange membrane (11c) may include a membrane that allows only anions to pass through among cations and anions. The first anion exchange membrane (11c) has a positive charge, so it repels cations and does not allow them to pass through, but only allows anions to pass through.

[0147] When a positive voltage is applied to the first current collector (11a), the first electrode (11ab) becomes a positive electrode (anode), and when a negative voltage is applied to the second current collector (12a), the second electrode (12ab) becomes a negative electrode (cathode). Accordingly, when a positive voltage is applied to the first current collector (11a) and a negative voltage is applied to the second current collector (12a), positive ions in the third channel (13) can move to the second channel (12), and negative ions in the third channel (13) can move to the first channel (11).

[0148] When a positive voltage is applied to the first current collector (11a) and a negative voltage is applied to the second current collector (12a), the negative ions moved to the first channel (11) can be adsorbed to the first porous electrode (11b), and the positive ions moved to the second channel (12) can be adsorbed to the second porous electrode (12b).

[0149] The control unit (70) can apply a positive voltage to the first collector (11a) and a negative voltage to the second collector (12a) in the deionization process.

[0150] FIG. 5 is a conceptual diagram for explaining the movement of ions that occurs when a water treatment device according to one embodiment performs a regeneration process.

[0151] Referring to FIG. 5, the control unit (70) can apply a negative voltage to the first collector (11a) and a positive voltage to the second collector (12a) in the regeneration process.

[0152] When a positive voltage is applied to the second collector (12a), the cations within the second channel (12) can move to the third channel (13). The cations within the second channel (12) may include cations adsorbed to the second porous electrode (12b) in the deionization process.

[0153] The cations adsorbed on the second porous electrode (12b) are, for example, sodium ions (Na + ), calcium ions (K + ) may be included.

[0154] The cations adsorbed on the second porous electrode (12b) can be desorbed from the second porous electrode (12b) and moved to the third channel (13).

[0155] Meanwhile, the cations in the third channel (13) cannot move to the first channel (11) due to the first anion exchange membrane (11c).

[0156] Accordingly, when the water treatment device (1) performs a regeneration process, the cations adsorbed on the second porous electrode (12b) can be desorbed, and accordingly, the ion adsorption efficiency of the second porous electrode (12b) can be regenerated.

[0157] When a negative voltage is applied to the first collector (11a), the negative ions within the first channel (11) can move to the third channel (13). The negative ions within the first channel (11) may include negative ions adsorbed to the first porous electrode (11b) in the deionization process.

[0158] Meanwhile, the anions in the third channel (13) cannot move to the second channel (12) due to the first cation exchange membrane (12c).

[0159] Accordingly, when the water treatment device (1) performs a regeneration process, the negative ions adsorbed on the first porous electrode (11b) can be desorbed, and accordingly, the ion adsorption efficiency of the first porous electrode (11b) can be regenerated.

[0160] Figure 6 is a conceptual diagram for explaining the movement of ions that occurs when a water treatment device according to one embodiment performs a deionization process.

[0161] Referring to FIG. 6, the second electro-deionization device (120) may include a third electrode (11ab'), a fourth electrode (12ab'), a second anion exchange membrane (11c'), and / or a second cation exchange membrane (12c').

[0162] The third electrode (11ab') and the fourth electrode (12ab') can be arranged to face each other, and the third electrode (11ab') and the fourth electrode (12ab') arranged to face each other can form a capacitor.

[0163] The third electrode (11ab') may include a third current collector (11a') and a third porous electrode (11b').

[0164] The material of the third collector (11a') may be a conductor.

[0165] The third porous electrode (11b') may include a solid electrode including void space. The third porous electrode (11b') may be made of a material that is easy to adsorb ions. For example, the third porous electrode (11b') may be a carbon porous electrode, but the type of the third porous electrode (11b') is not limited thereto. The third porous electrode (11b') may include:

[0166] The fourth electrode (12ab') may include a fourth current collector (12a') and a fourth porous electrode (12b').

[0167] The material of the fourth collector (12a') may be a conductor.

[0168] The fourth porous electrode (12b') may include a solid electrode including void space. The fourth porous electrode (12b') may be formed of a material that is easy to adsorb ions. For example, the fourth porous electrode (12b') may be a carbon porous electrode, but the type of the fourth porous electrode (12b') is not limited thereto.

[0169] The fourth porous electrode (12b') may be made of a material that is easy to adsorb a second ionic substance. For example, the fourth porous electrode (12b') may be formed of a divalent cation (e.g., magnesium ion (Mg +2 ), calcium ions (Ca +2 ) may contain vanadium, a substance that is easy to adsorb.

[0170] The second electric deionization device (120) may include a second housing (101') connected to the third inlet guide (24) and the first outlet guide (25).

[0171] The second electric deionization device (120) may include a fourth channel (11') formed by the third current collector (11a') and the second anion exchange membrane (11c'), a fifth channel (12') formed by the fourth current collector (12a') and the second cation exchange membrane (12c'), and a sixth channel (13') formed by the second anion exchange membrane (11c') and the second cation exchange membrane (12c').

[0172] The fourth channel (11'), the fifth channel (12'), and the sixth channel (13') may be fluidically connected to each other. For example, fluid in the sixth channel (13') may be able to move to the fourth channel (11') and / or the fifth channel (12'), and conversely, fluid in the fourth channel (11') and / or the fifth channel (12') may be able to move to the sixth channel (13').

[0173] The second cation exchange membrane (12c') may include a membrane that allows only cations to pass through among cations and anions. The second cation exchange membrane (12c') has a negative charge, so it repels anions and does not allow them to pass through, but only allows cations to pass through.

[0174] The second anion exchange membrane (11c') may include a membrane that allows only anions to pass through among cations and anions. The second anion exchange membrane (11c') has a positive charge, so it repels cations and does not allow them to pass through, but only allows anions to pass through.

[0175] When a positive voltage is applied to the third current collector (11a'), the third electrode (11ab') becomes a positive electrode (anode), and when a negative voltage is applied to the fourth current collector (12a'), the fourth electrode (12ab') becomes a negative electrode (cathode). Accordingly, when a positive voltage is applied to the third current collector (11a') and a negative voltage is applied to the fourth current collector (12a'), the positive ions in the sixth channel (13') can move to the fifth channel (12'), and the negative ions in the sixth channel (13') can move to the fourth channel (11').

[0176] When a positive voltage is applied to the third current collector (11a') and a negative voltage is applied to the fourth current collector (12a'), the negative ions moved to the fourth channel (11') can be adsorbed to the third porous electrode (11b'), and the positive ions moved to the fifth channel (12') can be adsorbed to the fourth porous electrode (12b').

[0177] The control unit (70) can apply a positive voltage to the third collector (11a') and a negative voltage to the fourth collector (12a') in the deionization process.

[0178] Figure 7 is a conceptual diagram for explaining the movement of ions that occurs when a water treatment device according to one embodiment performs a regeneration process.

[0179] Referring to FIG. 7, the control unit (70) can apply a negative voltage to the third collector (11a') and a positive voltage to the fourth collector (12a') in the regeneration process.

[0180] When a positive voltage is applied to the fourth collector (12a'), the cations within the fifth channel (12') can move to the sixth channel (13'). The cations within the fifth channel (12') may include cations adsorbed to the fourth porous electrode (12b') in the deionization process.

[0181] The cations adsorbed on the fourth porous electrode (12b') are, for example, magnesium ions (Mg +2 ), calcium ions (Ca +2 ) may be included.

[0182] The cations adsorbed on the fourth porous electrode (12b') can be desorbed from the fourth porous electrode (12b') and moved to the sixth channel (13').

[0183] Meanwhile, the cations in the sixth channel (13') cannot move to the fourth channel (11') due to the second anion exchange membrane (11c').

[0184] Accordingly, when the water treatment device (1) performs a regeneration process, the cations adsorbed on the fourth porous electrode (12b') can be desorbed, and accordingly, the ion adsorption efficiency of the fourth porous electrode (12b') can be regenerated.

[0185] When a negative voltage is applied to the third collector (11a'), the negative ions within the fourth channel (11') can move to the sixth channel (13'). The negative ions within the fourth channel (11') may include negative ions adsorbed to the third porous electrode (11b') in the deionization process.

[0186] Meanwhile, the anions in the sixth channel (13') cannot move to the fifth channel (12') due to the second cation exchange membrane (12c').

[0187] Accordingly, when the water treatment device (1) performs a regeneration process, the negative ions adsorbed on the third porous electrode (11b') can be desorbed, and accordingly, the ion adsorption efficiency of the third porous electrode (11b') can be regenerated.

[0188] Figure 8 illustrates an example of water flow when a water treatment device according to one embodiment performs a deionization process.

[0189] Referring to FIG. 8, a water treatment device (1) according to one embodiment may include a deionization path (P1) and / or a purification path (P2).

[0190] The deionization path (P1) may include a path through which water can flow through a raw water guide (21), a first inlet guide (22), a first electric deionization device (110), a second inlet guide (23), a third inlet guide (24), and a second electric deionization device (120).

[0191] The control unit (70) can control the first circulation valve (31a) and the second circulation valve (31b) to allow water to flow through the deionization path (P1).

[0192] Hereinafter, the control unit (70) will be described in detail about controlling the first circulation valve (31a) and the second circulation valve (31b) to allow water to flow through the deionization path (P1).

[0193] The control unit (70) can control the first circulation valve (31a) to open the raw water guide (21) and close the first circulation guide (28a) so that the raw water flowing from the raw water guide (21) can flow to the first inlet guide (22), the first electric deionization device (110), and the second inlet guide (23).

[0194] The control unit (70) can control the second circulation valve (31b) to open the second inflow guide (23) and close the second circulation guide (28b) and the third circulation guide (28c), thereby allowing water flowing from the second inflow guide (23) to flow to the third inflow guide (24) and the second electro-deionization device (120).

[0195] The water flowing from the second inflow guide (23) may include water from which the first ionic substance has been removed from the raw water. The water flowing from the second inflow guide (23) may include water from which the first ionic substance has not been removed from the raw water.

[0196] The water flow path (P2) may include a path through which water can flow through a first outflow guide (25), a second outflow guide (26), and an outlet guide (27).

[0197] Below, the control unit (70) controls the third circulation valve (31c) and the ion valve (32) to allow water to flow through the water purification path (P1) will be described.

[0198] The control unit (70) can control the third circulation valve (31c) to open the first discharge guide (25) and close the fourth circulation guide (28d) so that water flowing from the first discharge guide (25) can flow into the second discharge guide (25).

[0199] The water flowing from the first discharge guide (25) may include purified water from which at least one of the first ionic substance or the second ionic substance has been removed by the first electro-deionization device (110) and the second electro-deionization device (120). The purified water may flow to the second discharge guide (26).

[0200] The control unit (70) can control the ion valve (32) to open the second discharge guide (26) so that purified water flowing from the second discharge guide (26) can flow to the outlet guide (27).

[0201] The purified water flowing from the discharge guide (27) can be discharged through the discharge member (80).

[0202] The control unit (70) can control the first electric deionization device (110) and the second electric deionization device (120) in the deionization process (1000) to remove at least one of the first ionic substance or the second ionic substance of the raw water.

[0203] Controlling the first electric deionization device (110) to remove the first ionic substance of the raw water may include applying a positive voltage to the first current collector (11a) and applying a negative voltage to the second current collector (12a).

[0204] Controlling the second electric deionization device (120) to remove the second ionic substance of the raw water may include applying a positive voltage to the third current collector (11a') and applying a negative voltage to the fourth current collector (12a').

[0205] For example, when raw water flows into a deionization channel (P1), the control unit (70) can control the first electric deionization device (110) and the second electric deionization device (120) to generate purified water from which at least one of the first ionic substance or the second ionic substance of the raw water is removed. In addition, the control unit (70) can cause the generated purified water to flow into a purified water channel (P2).

[0206] FIG. 9 illustrates an example of the flow of water when a water treatment device according to one embodiment performs a regeneration process.

[0207] Referring to FIG. 9, a water treatment device (1) according to one embodiment may include a first circulation path (P3) and / or a second circulation path (P4).

[0208] The first circulation path (P3) may include a path through which the first storage water stored in the first storage room (210) circulates between the first storage room (210) and the first electric deionization device (110).

[0209] The control unit (70) can control the first circulation valve (31a) and the second circulation valve (31b) to open and close the first circulation path (P3). When the first circulation path (P3) is opened, the first storage water can circulate through the first circulation path (P3). At least one of the first circulation valve (31a) or the second circulation valve (31b) can open and close the first circulation path (P3).

[0210] Hereinafter, the control unit (70) controls the first circulation valve (31a) and the second circulation valve (31b) to circulate the first storage water through the first circulation path (P3).

[0211] The control unit (70) can control the first circulation valve (31a) to open the first circulation guide (28a) and close the raw water guide (21) so that the first storage water stored in the first storage chamber (210) can flow to the first circulation guide (28a), the first inflow guide (22), the first electric deionization device (110), and the second inflow guide (23).

[0212] The control unit (70) can control the second circulation valve (31b) to open the second inflow guide (23) and the second circulation guide (28b) and close the third circulation guide (28c) and the third inflow guide (24), thereby allowing water flowing from the second inflow guide (23) to flow into the second circulation guide (28b) and the first storage chamber (210).

[0213] The water flowing from the second inflow guide (23) may include first storage water supplied with the first ionic substance desorbed from the first electric deionization device (110) by the regeneration process of the first electric deionization device (110).

[0214] The second circulation path (P4) may include a path through which the second storage water stored in the second storage room (220) circulates between the second storage room (220) and the second electric deionization device (120).

[0215] The control unit (70) can control the second circulation valve (31b) and the third circulation valve (31c) to open and close the second circulation path (P4). When the second circulation path (P4) is opened, the second storage water can circulate through the second circulation path (P4). At least one of the second circulation valve (31b) or the third circulation valve (31c) can open and close the second circulation path (P4).

[0216] The control unit (70) can control the second circulation valve (31b) and the third circulation valve (31c) to allow the second storage water to flow through the second circulation path (P4).

[0217] Hereinafter, the control unit (70) controls the second circulation valve (31b) and the third circulation valve (31c) to circulate the second storage water through the second circulation path (P4).

[0218] The control unit (70) can control the second circulation valve (31b) to open the third circulation guide (28c) and the third inflow guide (24) and close the second circulation guide (28b) and the second inflow guide (23) so that the second storage water stored in the second storage chamber (220) can flow through the third circulation guide (28c), the third inflow guide (24), the second electro-deionization device (120), and the first outflow guide (25).

[0219] The control unit (70) can control the third circulation valve (31c) to open the first discharge guide (25) and the fourth circulation guide (28d) and close the second discharge guide (26) so that water flowing from the first discharge guide (25) can flow into the fourth circulation guide (28d) and the second storage chamber (220).

[0220] The water flowing from the first discharge guide (25) may include second storage water supplied with the first ionic substance desorbed from the second electric deionization device (120) by the regeneration process of the second electric deionization device (120).

[0221] The control unit (70) can control the first electro-deionization device (110) in the regeneration process (1100) to desorb the first ionic material from the first electro-deionization device (110).

[0222] Controlling the first electrodeionization device (110) to desorb the first ionic material may include applying a negative voltage to the first current collector (11a) and applying a positive voltage to the second current collector (12a).

[0223] Controlling the second electric deionization device (120) to desorb the second ionic material may include applying a negative voltage to the third current collector (11a') and applying a positive voltage to the fourth current collector (12a').

[0224] When the first storage water flows into the first circulation path (P3), the control unit (70) can control the first electric deionization device (110) to desorb the first ionic substance, thereby supplying the first ionic substance to the first storage water.

[0225] When the second storage water flows into the second circulation path (P4), the control unit (70) can control the second electric deionization device (120) to desorb the second ionic substance, thereby supplying the second ionic substance to the second storage water.

[0226] Through the aforementioned deionization process (1000) and regeneration process (1100), first storage water containing a first ionic substance can be stored in the first storage chamber (210), and second storage water containing a second ionic substance can be stored in the second storage chamber (220).

[0227] Hereinafter, it is described that through the aforementioned deionization process (1000) and regeneration process (1100), first storage water containing a first ionic substance is stored in the first storage chamber (210), and second storage water containing a second ionic substance is stored in the second storage chamber (220).

[0228] Fig. 10 illustrates an example of a flowchart of a control method of a water treatment device according to one embodiment.

[0229] Fig. 11 illustrates an example of a flowchart of a control method of a water treatment device according to one embodiment.

[0230] FIG. 12 illustrates an example of the flow of water when a water treatment device according to one embodiment produces purified water.

[0231] Referring to FIG. 10, the control unit (70) can control the pump (16) so that external raw water flows into the raw water guide (21). As a result, the external raw water can flow into the raw water guide (21) and be introduced into various components of the water treatment device (1) (2000).

[0232] The external source may include various ionic substances. For example, the external source may include a first ionic substance and a second ionic substance.

[0233] Conventional water treatment devices produce purified water by removing ionic substances contained in external raw water. However, since ionic substances are treated as mineral components, their concentration must be maintained at a certain level depending on the intended use of the purified water.

[0234] In addition, the external raw water may have different concentrations of ionic substances depending on the region, and in regions where the ionic substances contained in the external raw water are relatively low (e.g., Asia), there is a problem in that conventional water treatment devices cannot produce purified water having a relatively high concentration of ionic substances.

[0235] Hereinafter, a method for producing purified water containing ionic substances having a higher concentration than the concentration of ionic substances in raw water according to the water treatment device (1) of the present disclosure is described.

[0236] In addition, the following describes a method for controlling the concentration of ionic substances according to the type of ionic substance in the water treatment device (1) of the present disclosure.

[0237] Referring to FIG. 12, the water treatment device (1) may include a first ion path (P5) that guides first storage water stored in a first storage room (210) to a purified water path (P2) and / or a second ion path (P6) that guides second storage water stored in a second storage room (220) to a purified water path (P2).

[0238] The first ion path (P5) may include a path through which the first storage water stored in the first storage chamber (210) flows through the first ion guide (29a).

[0239] The second ion path (P6) may include a path through which the second storage water stored in the second storage chamber (220) flows through the second ion guide (29b).

[0240] The ion valve (32) can open and close the first ion path (P5) and / or the second ion path (P6). When the ion valve (32) opens the first ion path (P5), the first storage water stored in the first storage chamber (210) can flow into the purified water path (P5). When the ion valve (32) opens the second ion path (P6), the second storage water stored in the second storage chamber (220) can flow into the purified water path (P5).

[0241] In various embodiments, the control unit (70) can control the ion valve (32) to open and close the first ion path (P5) and / or the second ion path (P6).

[0242] Referring back to FIG. 10, in one embodiment, the control unit (70) may control the ion valve (32) to open the first ion path (P5) when the concentration of the first ionic substance in the raw water is lower than the first set concentration (examples 2100 and 2200). The concentration of the first ionic substance in the raw water may include the concentration of the first ionic substance measured by the first hardness sensor (50a).

[0243] In one embodiment, the control unit (70) can increase the opening amount of the ion valve (32) as the difference between the concentration of the first ionic substance of the raw water and the first set concentration increases.

[0244] For example, when the concentration of the first ionic substance of the raw water is lower than the first set concentration, the control unit (70) can increase the opening amount of the ion valve (32) as the difference between the concentration of the first ionic substance of the raw water and the first set concentration increases, thereby increasing the amount of the first storage water guided from the first ion path (P5) to the water purification path (P2).

[0245] Additionally, the control unit (70) can control the first deionization device (110) so that the first deionization device (110) does not remove the first ionic substance when the concentration of the first ionic substance in the raw water is lower than the first set concentration. Controlling the first deionization device (110) so that the first deionization device (110) does not remove the first ionic substance may include not applying voltage to the first collector (11a) and the second collector (12a) of the first deionization device (110).

[0246] In one embodiment, the control unit (70) can control the ion valve (32) to open the second ion path (P6) when the concentration of the second ionic substance in the raw water is lower than the second set concentration (examples 2300 and 2400). The concentration of the second ionic substance in the raw water can include the concentration of the second ionic substance measured through the first hardness sensor (50a).

[0247] In one embodiment, the control unit (70) can increase the opening amount of the ion valve (32) as the difference between the concentration of the second ionic substance of the raw water and the second set concentration increases.

[0248] For example, when the concentration of the second ionic substance of the raw water is lower than the second set concentration, the control unit (70) can increase the opening amount of the ion valve (32) as the difference between the concentration of the second ionic substance of the raw water and the second set concentration increases, thereby increasing the amount of the second storage water guided from the second ion path (P6) to the water purification path (P2).

[0249] Additionally, the control unit (70) can control the second electro-deionization device (120) so that the second electro-deionization device (120) does not remove the second ionic substance when the concentration of the second ionic substance in the raw water is lower than the second set concentration. Controlling the second electro-deionization device (120) so that the second electro-deionization device (120) does not remove the second ionic substance may include not applying voltage to the third collector (11a') and the fourth collector (12a') of the second electro-deionization device (120).

[0250] The water treatment device (1) of the present disclosure can produce purified water having a higher concentration of ionic substances than the concentration of ionic substances in raw water supplied from an external source. For example, by guiding first stored water containing a first ionic substance to a purified water path (P2) through a first ion path (P5), purified water having a higher concentration of the first ionic substance than the raw water can be produced.

[0251] The purified water can flow through the purified water path (P5) and be discharged through the discharge member (80) (2500).

[0252] Referring to Fig. 11, similar to the raw water inflow (2000) in Fig. 10, external raw water flows into the raw water guide (21) and can be introduced into various components of the water treatment device (1) (3000).

[0253] In various embodiments, the control unit (70) can control the first electro-deionization device (110) to remove the first ionic substance of the raw water.

[0254] In one embodiment, the control unit (70) can control the first electro-deionization device (110) to remove the first ionic substance from the raw water when the concentration of the first ionic substance in the raw water is greater than the first set concentration (examples 3100 and 3200).

[0255] For example, when the concentration of the first ionic substance of the raw water is greater than the first set concentration, the control unit (70) can increase the negative voltage applied to the second collector (12a) as the difference between the concentration of the first ionic substance of the raw water and the first set concentration increases.

[0256] In one embodiment, the control unit (70) can control the second electro-deionization device (120) to remove the second ionic substance from the raw water when the concentration of the second ionic substance in the raw water is greater than the second set concentration (examples 3300 and 3400).

[0257] For example, when the concentration of the second ionic substance of the raw water is greater than the second set concentration, the control unit (70) can increase the positive voltage applied to the fourth collector (11b') as the difference between the concentration of the second ionic substance of the raw water and the second set concentration increases.

[0258] The purified water from which at least one of the first ionic substance or the second ionic substance of the raw water has been removed can be discharged to the discharge member (80) through the discharge guide (27) (3500).

[0259] FIG. 13 illustrates an example of a user interface for adjusting the concentration of ionic substances in purified water according to user settings provided by a water treatment device according to one embodiment.

[0260] In one embodiment, the control unit (70) can determine at least one of the first set concentration or the second set concentration based on a user setting related to the intended use of the integer.

[0261] The control unit (70) can output an interface that allows the user to select the usage of the integer through the user interface (40).

[0262] The intended use of the purified water may include the intended use of the purified water discharged through the discharge member (80). For example, the intended use of the purified water may include the intended use for making tea, the intended use for making coffee, the intended use for making Korean food, the intended use for baking, the intended use for making Western food, the intended use for drinking after exercise, etc.

[0263] Depending on the intended use of the water, the required concentration of ionic substances in the water may vary. For example, if the water is used for baking, a relatively low concentration of ionic substances in the water may result in sticky dough, while a relatively high concentration may delay the fermentation of the dough.

[0264] Additionally, the concentrations of the first and second ionic substances in the purified water may vary depending on the intended use of the purified water. For example, if the purified water is intended for drinking after exercise, the concentration of the first ionic substance in the purified water needs to be relatively high, and the concentration of the second ionic substance needs to be relatively low.

[0265] According to the present disclosure, the control unit (70) can control the concentration of the first ionic substance of the purified water and the concentration of the second ionic substance of the purified water according to the intended use of the purified water by determining at least one of the first set concentration and the second set concentration according to the intended use of the purified water.

[0266] Fig. 14 illustrates an example of a flowchart of a control method of a water treatment device according to one embodiment.

[0267] Fig. 15 illustrates an example of a flowchart of a control method of a water treatment device according to one embodiment.

[0268] FIG. 16 illustrates an example of the flow of water when a water treatment device according to one embodiment performs a regeneration process or a discharge process.

[0269] Below, a method is described for increasing the concentration of ionic substances by circulating the stored water when the concentration of ionic substances in the stored water is lower than the set concentration in order to guide the stored water having the concentration of ionic substances suitable for the intended use of the purified water to the purified water path (P2).

[0270] Referring to FIGS. 14 and 16, in one embodiment, the control unit (70) can control the first circulation valve (31a) and the second circulation valve (31b) to open the first circulation path (P3) when the concentration of the first ionic substance in the first storage water stored in the first storage chamber (210) is less than the first set concentration (examples 4000 and 4100).

[0271] For example, when the concentration of the first ionic substance in the first storage water stored in the first storage room (210) is less than the first set concentration, the control unit (70) can control the first circulation valve (31a) and the second circulation valve (31b) so that the first storage water stored in the first storage room (210) circulates through the first storage room (210) and the first electro-deionization device (110) through the first circulation path (P3).

[0272] That is, when the concentration of the first ionic substance in the first storage water stored in the first storage room (210) is less than the first set concentration, the control unit (70) can circulate the first storage water through the first circulation path (P3) to generate the first storage water supplied with the first ionic substance from the first electro-deionization device (110).

[0273] In one embodiment, the control unit (70) may increase the opening amount of at least one of the first circulation valve (31a) and the second circulation valve (31b) as the difference between the concentration of the first ionic substance in the first storage water stored in the first storage chamber (210) and the first set concentration increases. Increasing the opening amount of at least one of the first circulation valve (31a) and the second circulation valve (31b) as the difference between the concentration of the first ionic substance in the first storage water stored in the first storage chamber (210) and the first set concentration may include increasing the flow rate flowing through the first circulation path (P3).

[0274] For example, if the concentration of the first ionic substance in the first storage water stored in the first storage chamber (210) is lower than the first set concentration, the control unit (70) can increase the opening amount of at least one of the first circulation valve (31a) or the second circulation valve (31b) as the difference between the concentration of the first ionic substance in the first storage water stored in the first storage chamber (210) and the first set concentration increases.

[0275] In one embodiment, the control unit (70) can control the second circulation valve (31b) and the third circulation valve (31c) to open the second circulation path (P4) when the concentration of the second ionic substance in the second storage water stored in the second storage chamber (220) is less than the second set concentration (examples 4200 and 4300).

[0276] For example, when the concentration of the second ionic substance in the second storage water stored in the second storage room (220) is less than the second set concentration, the control unit (70) can control the second circulation valve (31b) and the second circulation valve (31c) so that the second storage water stored in the second storage room (220) circulates through the second circulation path (P4) between the second storage room (220) and the second electro-deionization device (120).

[0277] That is, when the concentration of the second ionic substance in the second storage water stored in the second storage room (220) is lower than the second set concentration, the control unit (70) can circulate the second storage water through the second circulation path (P4) to generate second storage water supplied with the second ionic substance from the second electro-deionization device (120).

[0278] In one embodiment, the control unit (70) may increase the opening amount of at least one of the second circulation valve (31b) and the third circulation valve (31c) as the difference between the concentration of the second ionic substance in the second storage water stored in the second storage chamber (220) and the second set concentration increases. Increasing the opening amount of at least one of the second circulation valve (31b) and the third circulation valve (31c) as the difference between the concentration of the second ionic substance in the second storage water stored in the second storage chamber (220) and the second set concentration increases may include increasing the flow rate flowing through the second circulation path (P4).

[0279] For example, when the concentration of the second ionic substance in the second storage water stored in the second storage chamber (220) is lower than the second set concentration, the control unit (70) can increase the opening amount of at least one of the second circulation valve (31b) or the third circulation valve (31c) as the difference between the concentration of the second ionic substance in the second storage water stored in the second storage chamber (220) and the second set concentration increases.

[0280] Referring to FIG. 16, the water treatment device (1) may include a first discharge path (P7) for discharging first storage water stored in the first storage room (210) to the outside and / or a second discharge path (P8) for discharging second storage water stored in the second storage room (220) to the outside.

[0281] The first discharge path (P7) may include a path through which the first storage water stored in the first storage room (210) flows through the first discharge guide (250a).

[0282] The second discharge path (P8) may include a path through which the second storage water stored in the second storage room (210) flows through the second discharge guide (250b).

[0283] The control unit (70) can control the discharge valve (33) to open and close the first discharge path (P7). For example, the control unit (70) can control the discharge valve (33) so that the first storage water flowing from the first discharge path (P7) is discharged to the discharge port (251).

[0284] The control unit (70) can control the discharge valve (33) to open and close the second discharge path (P8). For example, the control unit (70) can control the discharge valve (33) so that the second storage water flowing from the second discharge path (P8) is discharged to the discharge port (251).

[0285] Below, a method is described for discharging a portion of the stored water to the outside when the concentration of ionic substances in the stored water is greater than the set concentration in order to guide the stored water having the concentration of ionic substances suitable for the intended use of the purified water to the purified water path (P2).

[0286] Referring to FIGS. 15 and 16, in one embodiment, the control unit (70) can control the discharge valve (33) to open the first discharge path (P7) when the concentration of the first ionic substance in the first storage water stored in the first storage chamber (210) is greater than the first set concentration (examples 5000 and 5100).

[0287] For example, the control unit (70) can control the discharge valve (33) to open the first discharge path (P7) when the concentration of the first ionic substance in the first storage water measured by the fourth hardness sensor (50d) is greater than the first set concentration.

[0288] For another example, if the concentration of the first ionic substance in the first storage water stored in the first storage chamber (210) is greater than the first set concentration, the control unit (70) can increase the opening amount of the discharge valve (33) as the difference between the concentration of the first ionic substance in the first storage water and the first set concentration increases.

[0289] In one embodiment, the control unit (70) can control the discharge valve (33) to open the second discharge path (P8) when the concentration of the second ionic substance in the second storage water stored in the second storage chamber (220) is greater than the second set concentration (examples 5200 and 5300).

[0290] For example, the control unit (70) can control the discharge valve (33) to open the second discharge path (P8) when the concentration of the second ionic substance in the second storage water measured by the fifth hardness sensor (50e) is greater than the second set concentration.

[0291] For another example, if the concentration of the second ionic substance in the second storage water stored in the second storage chamber (220) is greater than the second set concentration, the control unit (70) can increase the opening amount of the discharge valve (33) as the difference between the concentration of the second ionic substance in the second storage water and the second set concentration increases.

[0292] According to the present disclosure, it is possible to produce purified water having a concentration of ionic substances suitable for the intended use of the purified water.

[0293] According to the present disclosure, it is possible to produce purified water having a concentration of each type of ionic substance suitable for the intended use of the purified water.

[0294] A water treatment device according to the present disclosure comprises: a first electro-deionization device for removing a first ionic substance from raw water; a second electro-deionization device for removing a second ionic substance having a different charge from the first ionic substance from the raw water; a first storage chamber for receiving the first ionic substance desorbed from the first electro-deionization device by a regeneration process of the first electro-deionization device; a second storage chamber for receiving the second ionic substance desorbed from the second electro-deionization device by a regeneration process of the second electro-deionization device; a purified water passage through which purified water from which at least one of the first ionic substance or the second ionic substance has been removed by the first electro-deionization device and the second electro-deionization device flows; a first ion passage for guiding first storage water stored in the first storage chamber to the purified water passage; a second ion passage for guiding second storage water stored in the second storage chamber to the purified water passage; at least one ion valve for opening and closing the first ion passage and the second ion passage; And it may include a control unit for controlling the first electric deionization device, the second electric deionization device, and at least one ion valve.

[0295] The control unit can control at least one ion valve to open the first ion path when the concentration of the first ionic substance in the raw water is lower than the first set concentration, and can control at least one ion valve to open the second ion path when the concentration of the second ionic substance in the raw water is lower than the second set concentration.

[0296] Additionally, the control unit can increase the opening amount of at least one ion valve as the difference between the concentration of the first ionic substance of the raw water and the first set concentration increases, and can increase the opening amount of at least one ion valve as the difference between the concentration of the second ionic substance of the raw water and the second set concentration increases.

[0297] Additionally, the control unit can control the first electro-deionization device to remove the first ionic substance from the raw water when the concentration of the first ionic substance in the raw water is greater than the first set concentration, and can control the second electro-deionization device to remove the second ionic substance from the raw water when the concentration of the second ionic substance in the raw water is greater than the second set concentration.

[0298] Additionally, the control unit can determine at least one of the first set concentration or the second set concentration based on a user setting related to the intended use of the integer.

[0299] The water treatment device may further include a first circulation path configured to circulate first storage water between a first storage chamber and a first electro-deionization device; a second circulation path configured to circulate second storage water between a second storage chamber and a second electro-deionization device; and at least one circulation valve for opening and closing the first circulation path and the second circulation path.

[0300] The control unit can control at least one circulation valve to open and close the first circulation path and the second circulation path.

[0301] Additionally, the control unit can control at least one circulation valve to open the first circulation path when the concentration of the first ionic substance in the first storage water is less than the first set concentration, and can control at least one circulation valve to open the second circulation path when the concentration of the second ionic substance in the second storage water is less than the second set concentration.

[0302] Additionally, the control unit can increase the opening amount of at least one circulation valve as the difference between the concentration of the first ionic substance in the first storage water and the first set concentration increases, and can increase the opening amount of at least one circulation valve as the difference between the concentration of the second ionic substance in the second storage water and the second set concentration increases.

[0303] The water treatment device may further include a first discharge path for discharging the first stored water to the outside; a second discharge path for discharging the second stored water to the outside; and at least one discharge valve for opening and closing the first discharge path and the second discharge path.

[0304] The control unit can control at least one discharge valve to open and close the first discharge path and the second discharge path.

[0305] Additionally, the control unit can control at least one discharge valve to open the first discharge path when the concentration of the first ionic substance in the first storage water is greater than the first set concentration, and can control at least one discharge valve to open the second discharge path when the concentration of the second ionic substance in the second storage water is greater than the second set concentration.

[0306] A control method of a water treatment device according to the present disclosure comprises a first electro-deionization device for removing a first ionic substance from raw water, a second electro-deionization device for removing a second ionic substance having a different charge from the first ionic substance from the raw water, a first storage chamber for receiving the first ionic substance desorbed from the first electro-deionization device by a regeneration process of the first electro-deionization device, a second storage chamber for receiving the second ionic substance desorbed from the second electro-deionization device by a regeneration process of the second electro-deionization device, a purified water passage through which purified water from which at least one of the first ionic substance or the second ionic substance is removed by the first electro-deionization device and the second electro-deionization device flows, a first ion passage for guiding first storage water stored in the first storage chamber to the purified water passage, a second ion passage for guiding second storage water stored in the second storage chamber to the purified water passage, and at least one ion valve for opening and closing the first ion passage and the second ion passage, wherein the first electro-deionization device, the second electro-deionization device and controlling at least one ion valve;

[0307] Controlling the first electro-deionization device, the second electro-deionization device and at least one ion valve may include controlling the at least one ion valve to open the first ion path when the concentration of the first ionic substance in the raw water is lower than the first set concentration; and controlling the at least one ion valve to open the second ion path when the concentration of the second ionic substance in the raw water is lower than the second set concentration.

[0308] In addition, controlling the first electro-deionization device, the second electro-deionization device, and the at least one ion valve may include increasing the opening amount of the at least one ion valve as the difference between the concentration of the first ionic substance of the raw water and the first set concentration increases; and increasing the opening amount of the at least one ion valve as the difference between the concentration of the second ionic substance of the raw water and the second set concentration increases.

[0309] Additionally, controlling the first electro-deionization device, the second electro-deionization device, and the at least one ion valve may include controlling the first electro-deionization device to remove the first ionic substance from the raw water when the concentration of the first ionic substance in the raw water is greater than the first set concentration; and controlling the second electro-deionization device to remove the second ionic substance from the raw water when the concentration of the second ionic substance in the raw water is greater than the second set concentration.

[0310] The control method of the water treatment device may further include determining at least one of a first set concentration or a second set concentration based on a user setting related to the intended use of the purified water.

[0311] The water treatment device further includes a first circulation path configured to circulate first storage water between a first storage room and a first electro-deionization device; a second circulation path configured to circulate second storage water between a second storage room and a second electro-deionization device; and at least one circulation valve for opening and closing the first circulation path and the second circulation path; and a control method of the water treatment device may further include controlling the at least one circulation valve to open and close the first circulation path and the second circulation path.

[0312] Controlling at least one circulation valve to open and close the first circulation path and the second circulation path may include controlling at least one circulation valve to open the first circulation path when the concentration of the first ionic substance in the first storage water is less than the first set concentration; and controlling at least one circulation valve to open the second circulation path when the concentration of the second ionic substance in the second storage water is less than the second set concentration.

[0313] Controlling at least one circulation valve to open and close the first circulation path and the second circulation path may include increasing the opening amount of the at least one circulation valve as the difference between the concentration of the first ionic substance in the first storage water and the first set concentration increases; and increasing the opening amount of the at least one circulation valve as the difference between the concentration of the second ionic substance in the second storage water and the second set concentration increases.

[0314] The water treatment device may further include a first discharge path for discharging first stored water to the outside; a second discharge path for discharging second stored water to the outside; and at least one discharge valve for opening and closing the first discharge path and the second discharge path; and the control method of the water treatment device may further include controlling at least one discharge valve to open and close the first discharge path and the second discharge path.

[0315] Controlling at least one discharge valve to open and close the first discharge path and the second discharge path may include controlling at least one discharge valve to open the first discharge path when the concentration of the first ionic substance in the first storage water is greater than the first set concentration; and controlling at least one discharge valve to open the second discharge path when the concentration of the second ionic substance in the second storage water is greater than the second set concentration.

[0316] Meanwhile, the disclosed embodiments may be implemented in the form of a recording medium storing computer-executable instructions. The instructions may be stored in the form of program code, and when executed by a processor, may generate program modules to perform the operations of the disclosed embodiments. The recording medium may be implemented as a computer-readable recording medium.

[0317] Computer-readable storage media include all types of storage media that store instructions that can be deciphered by a computer. Examples include read-only memory (ROM), random access memory (RAM), magnetic tape, magnetic disks, flash memory, and optical data storage devices.

[0318] Additionally, a computer-readable recording medium may be provided in the form of a non-transitory storage medium. Here, the term "non-transitory storage medium" simply means a tangible device that does not contain signals (e.g., electromagnetic waves). This term does not distinguish between cases where data is permanently stored in the storage medium and cases where data is temporarily stored. For example, a "non-transitory storage medium" may include a buffer in which data is temporarily stored.

[0319] According to one embodiment, the method according to various embodiments disclosed in the present document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable recording medium (e.g., compact disc read only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product (e.g., a downloadable app) may be temporarily stored or temporarily generated on a machine-readable recording medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0320] The disclosed embodiments have been described with reference to the attached drawings as described above. Those skilled in the art will understand that the present invention can be implemented in forms other than the disclosed embodiments without altering the technical spirit or essential features of the present invention. The disclosed embodiments are illustrative and should not be construed as limiting.

Claims

1. A first electrodeionization device for removing a first ionic substance from raw water; A second electrodeionization device for removing a second ionic substance having a different charge from the first ionic substance from the raw water; A first storage chamber that receives the first ionic material desorbed from the first electric deionization device by the regeneration process of the first electric deionization device; A second storage chamber that receives the second ionic material desorbed from the second electric deionization device by the regeneration process of the second electric deionization device; A purified water passage through which purified water flows from which at least one of the first ionic substance or the second ionic substance has been removed by the first electric deionization device and the second electric deionization device; A first ion channel for guiding the first storage water stored in the first storage room to the water purification channel; A second ion path for guiding the second storage water stored in the second storage room to the water purification path; At least one ion valve for opening and closing the first ion path and the second ion path; and A water treatment device comprising a control unit that controls the first electric deionization device, the second electric deionization device, and the at least one ion valve.

2. In paragraph 1, The above control unit, Controlling the at least one ion valve to open the first ion path when the concentration of the first ionic substance of the raw water is lower than the first set concentration; A water treatment device that controls at least one ion valve to open the second ion path when the concentration of the second ionic substance in the raw water is lower than a second set concentration.

3. In paragraph 2, The above control unit, As the difference between the concentration of the first ionic substance of the above raw water and the first set concentration increases, the opening amount of the at least one ion valve is increased, A water treatment device that increases the opening amount of at least one ion valve as the difference between the concentration of the second ionic substance in the raw water and the second set concentration increases.

4. In paragraph 1, The above control unit, Controlling the first electro-deionization device to remove the first ionic substance from the raw water when the concentration of the first ionic substance in the raw water is greater than the first set concentration; A water treatment device that controls the second electro-deionization device to remove the second ionic substance from the raw water when the concentration of the second ionic substance in the raw water is greater than a second set concentration.

5. In paragraph 2 or paragraph 4, The above control unit, A water treatment device that determines at least one of the first set concentration or the second set concentration based on a user setting related to the intended use of the above-mentioned water.

6. In paragraph 1, A first circulation path configured to circulate the first storage water between the first storage room and the first electro-deionization device; A second circulation path configured to allow the second storage water to circulate between the second storage room and the second electro-deionization device; and further comprising at least one circulation valve for opening and closing the first circulation path and the second circulation path; The above control unit, A water treatment device that controls at least one circulation valve to open and close the first circulation path and the second circulation path.

7. In paragraph 6, The above control unit, Controlling the at least one circulation valve to open the first circulation path when the concentration of the first ionic substance in the first storage water is less than the first set concentration; A water treatment device that controls at least one circulation valve to open the second circulation path when the concentration of the second ionic substance in the second storage water is less than the second set concentration.

8. In paragraph 7, The above control unit, As the difference between the concentration of the first ionic substance in the first storage water and the first set concentration increases, the opening amount of the at least one circulation valve is increased, A water treatment device that increases the opening amount of at least one circulation valve as the difference between the concentration of the second ionic substance in the second storage water and the second set concentration increases.

9. In paragraph 1, A first discharge path for discharging the first storage water to the outside; A second discharge path for discharging the second storage water to the outside; and further comprising at least one discharge valve for opening and closing the first discharge path and the second discharge path; The above control unit, A water treatment device that controls at least one discharge valve to open and close the first discharge path and the second discharge path.

10. In paragraph 9, The above control unit, Controlling the at least one discharge valve to open the first discharge path when the concentration of the first ionic substance in the first storage water is greater than the first set concentration; A water treatment device that controls at least one discharge valve to open the second discharge path when the concentration of the second ionic substance in the second storage water is greater than a second set concentration.

11. A method for controlling a water treatment device, comprising: a first electro-deionization device for removing a first ionic substance from raw water; a second electro-deionization device for removing a second ionic substance having a different charge from the first ionic substance from the raw water; a first storage chamber for receiving the first ionic substance desorbed from the first electro-deionization device by a regeneration process of the first electro-deionization device; a second storage chamber for receiving the second ionic substance desorbed from the second electro-deionization device by a regeneration process of the second electro-deionization device; a purified water passage through which purified water from which at least one of the first ionic substance or the second ionic substance has been removed by the first electro-deionization device and the second electro-deionization device flows; a first ion passage for guiding first stored water stored in the first storage chamber to the purified water passage; a second ion passage for guiding second stored water stored in the second storage chamber to the purified water passage; and at least one ion valve for opening and closing the first ion passage and the second ion passage, A control method for a water treatment device, comprising: controlling the first electric deionization device, the second electric deionization device, and the at least one ion valve.

12. In paragraph 11, Controlling the first electro-deionization device, the second electro-deionization device and the at least one ion valve, Controlling the at least one ion valve to open the first ion path when the concentration of the first ionic substance in the raw water is lower than the first set concentration; and A control method of a water treatment device, comprising: controlling at least one ion valve to open the second ion path when the concentration of the second ionic substance in the raw water is lower than a second set concentration; 13. In paragraph 12, Controlling the first electro-deionization device, the second electro-deionization device and the at least one ion valve, The greater the difference between the concentration of the first ionic substance of the raw water and the first set concentration, the greater the opening amount of the at least one ion valve; and A control method for a water treatment device, comprising: increasing the opening amount of at least one ion valve as the difference between the concentration of the second ionic substance of the raw water and the second set concentration increases; 14. In paragraph 11, Controlling the first electro-deionization device, the second electro-deionization device and the at least one ion valve, Controlling the first electro-deionization device to remove the first ionic substance from the raw water when the concentration of the first ionic substance in the raw water is greater than a first set concentration; and A control method of a water treatment device, comprising: controlling the second electro-deionization device to remove the second ionic substance from the raw water when the concentration of the second ionic substance in the raw water is greater than a second set concentration; 15. In paragraph 12 or 14, A control method of a water treatment device, further comprising: determining at least one of the first set concentration or the second set concentration based on a user setting related to the intended use of the water.

Images