KR-102961485-B1 - Water purification device capable of suppressing scale adhesion

KR102961485B1KR 102961485 B1KR102961485 B1KR 102961485B1KR-102961485-B1

Abstract

A water purification device capable of inhibiting scale buildup includes: an inlet for receiving raw water; a filtration filter for purifying raw water to produce purified water; and piping for passing raw water and purified water; a microbubble generator for generating microbubbles; a water supply outlet for outputting purified water; a branching section for branching the piping; and a joining section where the piping joins; a bypass pipe with one end connected to the branching section and the other end connected to the joining section to bypass the filtration filter; and a control device for controlling the supply timing of the microbubbles and the flow path of the branching section.

Inventors

박재완
다카다 마코토
사토 요헤이

Assignees

엘지전자 주식회사

Dates

Publication Date: 20260507
Application Date: 20240131

Claims (20)

In a water purification device capable of inhibiting scale adhesion, An inlet for receiving raw water, a filtration filter that purifies the raw water to produce purified water, and piping for passing raw water and purified water; A microbubble generating device for generating microbubbles, a water supply outlet for outputting purified water, a branching section for branching the pipe, and a joining section where the pipe joins - the pipe is configured to connect the water supply outlet and the joining section; A bypass pipe having one end connected to the branch section and the other end connected to the junction section to bypass the filtration filter; and A water purification device comprising a control device for controlling the supply timing of the microbubbles and the flow path of the branch section.
In Article 1, The above control device is, If it is determined that the water supply process is a water purification process in which purified water is supplied through the above-mentioned water supply port, the first mode, which is a water purification mode, is performed, and If it is determined that the above water purification supply process is not the case, determine whether it is the second mode, which is a maintenance mode for suppressing scale buildup inside the water purification device, and A water purification device that, when determined to be the second mode, controls the flow path to the branch section so that raw water containing microbubbles joins the confluence section through the bypass pipe.
In Article 2, The above control device is, If it is determined that the above second mode is used, the timing of the supply of microbubbles to the microbubble generator and the flow path of the branching section are controlled, and A water purification device that, if it is determined that the above second mode is not the case, re-evaluates the water purification supply process to perform the above first mode or controls the microbubble generating device and the flow path of the branching section at the time when the above second mode is initiated.
In Article 2, In the first mode above, the control device is, Determining whether microbubbles are being generated through the above microbubble generating device, and If it is determined that the above microbubbles are being generated, the microbubble generating device is controlled to stop the generation of the above microbubbles, and A water purification device that switches the flow path of the branch section to the first path of the filtration filter after the generation of the microbubbles is stopped.
In Paragraph 4, In the first mode above, the control device is, After the Euro of the above branch section is switched to the above first path, the first mode determines whether to terminate, and If it is determined that the above first mode has not ended, the process of determining whether microbubbles are being generated through the microbubble generating device is repeated, and A water purification device that performs the second mode, which is the maintenance mode, when it is determined that the first mode is terminated.
In Paragraph 4, In the second mode above, the control device is, The Euro of the above branch section is diverted to the second path of the above bypass pipeline, and Determining whether microbubbles are being generated through the above microbubble generating device, and A water purification device that controls the microbubble generating device to initiate the generation of the microbubbles when it is determined that the microbubbles are not generated.
In Article 6, In the second mode above, the control device is, Control the microbubble generating device to generate microbubbles while maintaining the flow path of the branch section as the second path of the bypass pipe, and If it is determined that the above microbubbles are being generated, the above maintenance mode, the above second mode, is performed until a predetermined time has elapsed since the generation of the microbubbles or until a predetermined flow rate is passed through. After the above microbubbles are generated, if a predetermined time elapses or a predetermined flow rate is passed, the above maintenance mode, which is the second mode, is terminated, and An integer device that starts the first mode, which is the integer mode, after the second mode is terminated.
In Article 2, It further includes a gas dissolving device disposed between the above-mentioned inlet and the above-mentioned microbubble generating device, which causes gas to be dissolved in raw water supplied from the above-mentioned inlet, The above control device is, In the first mode above, the gas dissolving device and the microbubble generating device are controlled so that the gas and the microbubbles are not included in the raw water, and A water purification device that forms the flow path of the branching section in the first mode as the first path of the filtration filter, thereby controlling the raw water to produce purified water through the filtration filter and to discharge the purified water through the pipe and the water supply port.
In Article 8, The above control device is, Control the gas dissolving device and the microbubble generating device so that the gas and the microbubbles are included in the raw water in the above second mode, and A water purification device that controls the flow path of the branch section in the second mode to form the second path of the bypass pipe so that raw water containing the gas and the microbubbles is delivered to the confluence section through the bypass pipe.
In Article 2, A gas dissolution device disposed between the above-mentioned inlet and the above-mentioned microbubble generating device, and configured to dissolve gas into raw water supplied from the above-mentioned inlet; and It further includes a water quality detector disposed between the microbubble generating device and the branching section, configured to detect at least one of the pH, conductivity, dissolved oxygen, and temperature of raw water containing the gas and the microbubbles, and The above control device is, In the first mode above, the gas dissolving device and the microbubble generating device are controlled so that the gas and the microbubbles are not included in the raw water, and A water purification device that forms the flow path of the branching section in the first mode as the first path of the filtration filter, thereby controlling the raw water to pass through the filtration filter to produce purified water, and controlling the purified water to be discharged through the pipe and the water supply port.
In Article 10, The above control device is, Control the gas dissolving device and the microbubble generating device so that the gas and the microbubbles are included in the raw water in the above second mode, and In the second mode above, at least one of the pH, conductivity, dissolved oxygen, and temperature of the raw water containing the gas and the microbubbles is detected, and A water purification device that controls the flow path of the branch section in the second mode to form the second path of the bypass pipe until the detected value becomes less than or equal to a reference value, thereby controlling the transmission of raw water containing the gas and the microbubbles to the confluence section through the bypass pipe.
In Article 10, It further includes a second water quality detector positioned between the above filtration filter and the above confluence section and configured to detect conductivity to check the water quality of purified water, and The above control device is a water purification device that determines the deterioration status of the filtration filter and whether replacement is necessary by linking with the second water quality detector in a first mode in which the raw water passes through the filtration filter.
In Article 2, A heater connected to the above-mentioned inlet and configured to heat the above-mentioned raw water; A gas dissolution device disposed between the heater and the microbubble generating device, and configured to dissolve gas into raw water heated by the heater; and A water purification device further comprising a water quality detector disposed between the microbubble generating device and the branching part, configured to detect at least one of the pH, conductivity, dissolved oxygen, and temperature of the heated raw water containing the gas and the microbubbles.
In Article 13, The above control device is, In the first mode above, the gas dissolving device and the microbubble generating device are controlled so that the heated raw water does not contain the gas and the microbubbles, and A water purification device that forms the flow path of the branching section in the first mode as the first path of the filtration filter, thereby controlling the raw water to pass through the filtration filter to produce purified water, and controlling the purified water to be discharged through the pipe and the water supply port.
In Article 14, The above control device is, Control the gas dissolving device and the microbubble generating device so that the gas and the microbubbles are included in the heated raw water in the above second mode, and In the second mode above, at least one of the pH, conductivity, dissolved oxygen, and temperature of the heated raw water containing the gas and the microbubbles is detected, and If the detected value is above a threshold, the temperature of the heater is increased stepwise to the threshold temperature until the detected value becomes below a reference value, and A water purification device that controls the flow path of the branch section in the second mode to form the second path of the bypass pipe until the detected value becomes less than or equal to the reference value, thereby controlling the transmission of raw water containing the gas and the microbubbles to the confluence section through the bypass pipe.
In Article 15, The above control device is, The temperature of the nano-bubble water containing microbubbles is maintained at 25℃, 40℃, 60℃, and 80℃ in stages for a certain period of time using the above heater, and By controlling the temperature of the nano-bubble water to be maintained at 25℃ again until the number of microbubbles of the nano-bubble water maintains a critical ratio, the flow path of the branch section in the second mode is formed as the second path of the bypass piping, and A water purification device that, when the number of microbubbles in the nanobubble water is less than the threshold ratio, increases the temperature of the nanobubble water again to form the flow path of the branching section as the second path of the bypass pipe in the second mode.
In Article 2, The above control device is a water purification device that controls the microbubble generating device so that the modal bubble diameter of the microbubble is 1 micrometer or less.
In Article 2, The above control device is, At the first timing when the microbubbles are supplied, the flow path of the branch section is controlled to become the second path of the bypass pipe so that the nanobubble water containing the microbubbles circulates inside the pipe to remove scale inside the pipe, and A water purification device that controls the flow path of the branch section to become the first path of the filtration filter at a second timing when the supply of the microbubbles is interrupted, thereby allowing the purified water to be discharged through the pipe and the water supply port.
In Article 11, The above control device is, The microbubble generating device is controlled so that the modal bubble diameter of the microbubbles becomes less than or equal to a specific value according to the water quality of the raw water through the water quality detector, and A water purification device that controls the microbubble generating device so that as the water quality of the raw water deteriorates, the modal bubble diameter of the microbubble decreases further and the amount of microbubbles increases.
In Article 1, The above-mentioned inlet is formed in a first side area of the washing device, and the washing tub area of the washing device is configured to include an inner tub and an outer tub, and The washing device includes the microbubble generating device and the water supply port in the upper region in the Z-axis direction of the outer tub, and The above control device is a water purification device that controls the microbubble generating device to remove scale formed between the inner tank and the outer tank and scale formed on the heating element of the heater using the microbubbles.

Description

Water purification device capable of suppressing scale adhesion The present invention relates to a water purification device capable of inhibiting scale adhesion. More specifically, the invention relates to a water purification device capable of inhibiting scale adhesion or a laundry device equipped with the same. With the rapid development of industry in recent years, the demand for industrial or domestic water has increased rapidly, making it necessary to efficiently purify and use raw water such as industrial or domestic water. In particular, water purification devices have a problem in that scale, mainly composed of calcium or silica, adheres and accumulates on the inner surface of pipes due to mineral components contained in the raw water, blocking the pipes and causing the device to malfunction. In addition, the inner surface of the outer tub and the outer surface of the inner tub within the washing machine's tub area have weak water flow, resulting in low physical external forces. Furthermore, because the gaps are narrow, maintenance is difficult, making it easy for scale to adhere and accumulate. There is a problem in that the scale adhering to these areas of the washing machine's tub causes the washing machine to malfunction. In addition, there is a problem where hygiene is compromised as bacteria multiply while nano-bubble water containing microbubbles remains in the filtration filter during the shutdown of the water purification device or washing device. FIG. 1 shows the configuration of a water purification device capable of suppressing scale adhesion according to the present specification. Figure 2 shows a flowchart between each component during the process in which raw water is purified through the water purification device of Figure 1. Figure 3 is a flowchart showing the processes performed in the control device of Figure 1. FIGS. 4 and 5 show flowcharts of operations performed by a control device of a water purification device according to the water purification mode and maintenance mode according to the present specification. FIGS. 6 to 8 show a configuration having at least one of various devices with improved scale adhesion inhibition performance according to embodiments. FIG. 9 shows a front view of a washing machine equipped with a water inlet and a microbubble generating device. Figure 10 shows the detailed configuration of a washing device capable of suppressing scale adhesion of Figure 9. Figure 11 shows a system for measuring bacteria in a pipe according to the water flow in the pipe using a pump. Figure 12 shows a system for measuring bacteria in a pipe by adding a hard water component to nanobubble water or pure water. Figure 13 shows the change in the number of microbubbles as time passes while the water temperature of the nanobubble is controlled. Figure 14 shows the change in the number of microbubbles as time passes at room temperature after maintaining the water temperature of the nanobubble water at a specific temperature for 30 minutes. Figure 15 is a graph showing the change in the number of microbubbles and conductivity due to the concentration of nanobubbles. The technology disclosed in this specification applies to water purification devices and laundry devices capable of inhibiting scale adhesion. However, the technology disclosed in this specification is not limited thereto and may be applied to all water purification devices and laundry devices capable of inhibiting scale adhesion to which the technical concept of the technology can be applied. It should be noted that technical terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention. Furthermore, unless specifically defined otherwise in this specification, technical terms used in this specification should be interpreted in the sense generally understood by those skilled in the art to which the invention pertains, and should not be interpreted in an overly broad or overly narrow sense. Additionally, if a technical term used in this specification is an incorrect technical term that fails to accurately express the spirit of the invention, it should be understood as being replaced by a technical term that can be correctly understood by those skilled in the art. Moreover, general terms used in this invention should be interpreted according to their prior definitions or the context, and should not be interpreted in an overly narrow sense. Additionally, singular expressions used in this specification include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "composed of" or "comprising" should not be interpreted as necessarily including all of the various components or steps described in the specification, and should be interpreted as meaning that some of the components or steps may not be included, or that additional components or steps may be included. Furthermore, the suffixes "module" and "part" for