WO2021033918A1 - Filtre pour dispositif de traitement de l'eau - Google Patents

Filtre pour dispositif de traitement de l'eau Download PDF

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Publication number
WO2021033918A1
WO2021033918A1 PCT/KR2020/008849 KR2020008849W WO2021033918A1 WO 2021033918 A1 WO2021033918 A1 WO 2021033918A1 KR 2020008849 W KR2020008849 W KR 2020008849W WO 2021033918 A1 WO2021033918 A1 WO 2021033918A1
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WIPO (PCT)
Prior art keywords
electrode
activated carbon
water
filter
water treatment
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Application number
PCT/KR2020/008849
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English (en)
Korean (ko)
Inventor
이진현
유기원
홍형기
이상덕
이재근
조수창
Original Assignee
엘지전자 주식회사
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Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Publication of WO2021033918A1 publication Critical patent/WO2021033918A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4691—Capacitive deionisation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis

Definitions

  • the present invention relates to a filter for a water treatment device.
  • a water treatment device for generating purified water by treating raw water such as a water purifier
  • deionization methods such as EDI (Electro Deionization), CEDI (Continuous Electro Deionization), and CDI (Capacitive Deionization) have recently been in the spotlight.
  • EDI Electro Deionization
  • CEDI Continuous Electro Deionization
  • CDI Capacitive Deionization
  • the CDI method refers to a method of removing ions (contaminants) in water using the principle that ions are adsorbed and desorbed from the surface of an electrode by electric force.
  • the deionization performance is affected by the spacing between electrodes. That is, if the distance between electrodes in the CDI method increases, the deionization performance decreases. The reason for this is that, first, as the distance between the electrodes increases, the capacitance of the capacitor decreases. In general, the capacitance of a capacitor is inversely proportional to the spacing between the electrodes. Second, this is because the treated water quickly passes through the electrodes when the distance between the electrodes increases. When the treated water passes quickly, ions in the treated water are difficult to be adsorbed to the electrode. Therefore, even if a large number of electrodes are stacked, it is very important to keep the distance between the electrodes constant.
  • Prior Document 1 a filter for a water treatment device in which a voltage applied to an activated carbon electrode can be uniformly formed is disclosed.
  • the electrode made of carbon has a thin structure of 500 ⁇ m per sheet, and the more the reaction is repeatedly performed, the performance decreases due to the formation of scale and deterioration of carbon. Particularly, deterioration reaction due to carbon oxidation occurs in the (+) electrode due to repetitive operation, and scale is formed in the (-) electrode due to the reduction of dissolved oxygen, causing continuous performance degradation.
  • An object of the present invention is to provide a filter for a water treatment device capable of preventing metal components from being eluted from electrode means, including a shaft member made of a metal material included in the electrode portion.
  • a plurality of electrode units are combined to form one module, but an object thereof is to provide a filter for a water treatment device capable of maintaining a required operating current to a minimum.
  • an object of the present invention is to provide a filter for a water treatment device capable of maintaining the durability of an electrode even when used repeatedly.
  • a filter for a water treatment apparatus includes a chamber forming an outer shape, an electrode unit including an electrode portion accommodated inside the chamber, and a power supply means for supplying power to the electrode portion of the electrode unit.
  • the electrode unit includes a current collector and activated carbon formed on the surface of the current collector, a plurality of activated carbon electrodes formed in a plate shape, an insulating material spacer inserted between the activated carbon electrodes to prevent a short, and the stacked plurality of It includes a plurality of electrode means connected to one side or the other side of the activated carbon electrode, at least partly arranged in parallel with the activated carbon electrode, and making surface contact with the activated carbon electrode.
  • the power supply means supplies current to the activated carbon electrode through the electrode means so that adjacent activated carbon electrodes alternately form an anode and a cathode.
  • the plurality of activated carbon electrodes may be connected in parallel.
  • a plurality of electrode units may be provided, and the plurality of electrode units may be connected in series.
  • the electrode means includes a first electrode means and a second electrode means that are spaced apart from each other, and the activated carbon electrode may be connected to an adjacent activated carbon electrode and an electrode means different from each other.
  • a portion connected to the electrode means may protrude outward to form an electrode connection.
  • the electrode means may include a vertical portion formed parallel to the stacking direction of the activated carbon electrode, and a plurality of horizontal portions formed parallel to the activated carbon electrode and connected to the vertical portion.
  • the horizontal portion and the activated carbon electrode may have connection holes formed at positions corresponding to each other, and a shaft member made of a conductor may be inserted into the connection hole.
  • the shaft member may have a coating layer of an insulating material formed on a side exposed to the outside.
  • the coating layer may be formed by inserting a tube made of an insulating material to the outside of the shaft member and contracting the tube while applying heat to the tube.
  • the tube may be in close contact with the outside of the shaft member.
  • the coating layer may be formed by coating an epoxy on the outside of the shaft member.
  • the power supply means may supply current in one direction and adsorb ions to the activated carbon electrode to remove ions from water.
  • the power supply means may supply current in a direction opposite to the one direction, and adsorb ions to the activated carbon electrode to remove ions in water.
  • the power supply means may supply current in two directions opposite to the one direction, and discharge ions adsorbed on the activated carbon electrode into water, thereby regenerating the activated carbon electrode.
  • the activated carbon electrode may be formed by applying a mixture of activated carbon particles, conductive polymer particles, and a binder on the surface of the current collector.
  • the chamber may include an inlet through which water is introduced, a discharge port through which water is discharged, and an internal space communicating with the inlet and the discharge port.
  • a water outlet communicating with the discharge port may be perforated in parallel with a stacking direction.
  • the chamber may include a body portion forming the inner space and having one side open, and a cover portion opening and closing the open side of the body portion.
  • the metal component from eluting from the electrode means, including a shaft member made of a metal material included in the electrode part.
  • a plurality of electrode units are combined to form one module, but the required operating current can be kept to a minimum.
  • water can be softened by lowering the hardness in water.
  • the voltage applied to the activated carbon electrode can be uniformly formed.
  • a difference between a voltage supplied from a power source and a voltage applied to the activated carbon electrode can be reduced.
  • the filtering force can be ensured in all regions, regardless of the stacking position of the electrodes.
  • the present invention it is possible to prevent partial deterioration of the electrode or partial damage to the electrode due to the application of an even voltage.
  • the voltage can be stably and evenly distributed to each electrode.
  • ion removal performance can be improved.
  • the stacking height can be variously set according to the required processing capacity and processing speed.
  • ions adsorbed on the activated carbon electrode can be easily removed to maintain a constant ion removal capability of the electrode portion.
  • the hardness of the introduced water can be removed more quickly and evenly in the entire region of the electrode unit, so that desalination efficiency can be secured and water of a target concentration (ppm) can be generated and supplied more quickly.
  • FIG. 1 is a perspective view of a filter for a water treatment apparatus according to an embodiment of the present invention
  • FIG. 2 is a conceptual diagram of a filter for a water treatment apparatus according to an embodiment of the present invention
  • FIG. 3 is a conceptual diagram showing a state in which water is purified in the filter for the water treatment apparatus shown in FIG. 2;
  • FIG. 4 is a conceptual diagram showing a state in which the filter for the water treatment device shown in FIG. 2 is regenerated
  • FIG. 5 is a plan view of an electrode part constituting a filter for a water treatment apparatus according to an embodiment of the present invention
  • FIG. 6 is a longitudinal sectional view of area'A' of FIG. 5;
  • FIG. 7 is a cross-sectional view illustrating a state in which a coating layer is formed on a shaft member in FIG. 6.
  • FIG. 8 is a conceptual diagram showing a connection state of an electrode unit, which is a main configuration of the present invention.
  • FIG. 9 is a graph showing a change in a voltage value supplied to an electrode unit over time.
  • FIG. 10 is a table comparing the hardness removal rate of the alternate driving method as in the present invention and the hardness removal rate of the conventional driving method.
  • the water treatment device may correspond to various purification devices such as a water purifier and a water softener.
  • purification means installed in a washing machine, dishwasher, refrigerator, or the like may be applicable.
  • various embodiments may occur in a range in which ions and hardness substances contained in raw water introduced from the outside are electro-adsorbed and then discharged.
  • the filter for a water treatment apparatus may refer to one filter and may refer to several filters.
  • FIG. 1 is a perspective view of a filter for a water treatment apparatus according to an embodiment of the present invention
  • FIG. 2 is a conceptual diagram of a filter for a water treatment apparatus according to an embodiment of the present invention.
  • the filter for the water treatment device has an inlet 101 through which water is introduced, and a discharge port 102 through which water is discharged, and communicates with the inlet 101 and the discharge port 102. It includes a chamber 100 having an internal space.
  • the electrode part 200 may be accommodated inside the chamber 100.
  • a water outlet 201 communicating with the discharge port 102 may be perforated in the electrode part 200 in parallel with the stacking direction.
  • the electrode part 200 is accommodated in the inner space of the chamber 100, and water is introduced into the inner space of the chamber 100 from the outside through the inlet 101. At this time, the introduced water passes through the electrode part 200 and then exits the chamber 100 through the discharge port 102. In this process, ions contained in water may be adsorbed and removed by the electrode part 200 while passing through the electrode part 200.
  • the chamber 100 may have a rectangular parallelepiped shape, and the inlet 101 and the discharge port 102 may be formed in a direction perpendicular to each other.
  • the discharge port 102 is formed parallel to the stacking direction of the electrode part 200. It is formed in a direction perpendicular to the stacking direction. That is, it is formed to face the side surface of the electrode part 200.
  • water supplied to the inlet 101 is supplied to the side of the electrode unit 200, and as a result, it can be evenly supplied to the entire thickness of the electrode unit 200.
  • water when water is supplied through the side surface of the electrode part 200, water may be evenly supplied to the entire thickness of the electrode part 200.
  • the chamber 100 may include a body portion 110 forming an inner space and an open side of the body portion 110, and a cover portion 120 for opening and closing the open side of the body portion 110. have.
  • the body portion 110 and the cover 120 may be fixed and separated through separate fastening means (not shown) such as bolts.
  • a discharge port 102 may be formed in the cover part 120.
  • the inner space of the chamber 100 is exposed to the outside, so that it is easier to stack the electrode portion 200 in the inner space. Can be done.
  • the cover unit 120 may be separated to facilitate inspection and maintenance.
  • the chamber 100 can be used semi-permanently.
  • the assembly properties of the product are improved, thereby increasing productivity and securing mass production.
  • the filter for a water treatment device includes an electrode part 200.
  • the electrode unit 200 may be composed of one electrode unit 200a, or may be configured by stacking a plurality of electrode units 200a.
  • the electrode unit 200a includes a current collector 211, a plurality of activated carbon electrodes 210 made of an activated carbon coating layer 212 formed by coating activated carbon on one or both sides of the current collector 211, and the stacked A plurality of electrode means 220 connected to one end or the other end of the plurality of activated carbon electrodes 210 and a spacer 230 made of an insulating material inserted to prevent a short between the activated carbon electrodes 210, and , Adsorption of the ions of the introduced water to remove the ions in the water and then discharge.
  • the activated carbon electrode 210 may be formed by applying a mixture of activated carbon particles, conductive polymer particles, and a binder on the surface of the current collector 211.
  • the electrode unit 200a supplies current to the activated carbon electrode 210 through the electrode means 220 so that the adjacent activated carbon electrodes 210 alternately form a positive electrode (+ electrode) and a negative electrode (-pole). It is connected to the power supply means 240.
  • the activated carbon electrode 210 includes a current collector 211 and an activated carbon coating layer 212.
  • the activated carbon electrode 210 may be provided with activated carbon and various known embodiments may be applied within a range in which an electrode is formed.
  • the current collector 211 is in the form of a thin film and may be provided as an electric conductor.
  • the current collector 211 may be provided with a graphite foil, and in addition, various types of conductors may be adopted as the current collector 211.
  • the activated carbon coating layer 212 is formed on one or both surfaces of the current collector 211.
  • the activated carbon coating layer 212 includes activated carbon. Therefore, when impurities of raw water are adsorbed to the activated carbon coating layer 212 by electrostatic attraction, the adsorbed impurities move through diffusion into the pores called macro pores on the surface of the activated carbon, and then the mesopores ( Meso pores) or micro pores can be finally adsorbed and removed.
  • the number of stacked activated carbon electrodes 210 as described above may be variously adjusted according to the degree of hardness adjustment required.
  • the activated carbon coating layer 212 may be formed only on one surface of the current collector 211.
  • the activated carbon electrode 210 in which the activated carbon coating layer 212 is formed only on one surface of the current collector 211 may be disposed at the top and bottom ends of the electrode unit 200a.
  • the activated carbon electrode 210 disposed at the top is disposed so that the activated carbon coating layer 212 faces downward, and the activated carbon electrode 210 disposed at the lowest end is disposed so that the activated carbon coating layer 212 faces upward.
  • the activated carbon coating layer 212 may be formed on both sides of the current collector 211.
  • the activated carbon electrode 210 having the activated carbon coating layer 212 formed on both sides of the current collector 211 may be disposed in the center of the electrode unit 200a except for the uppermost and lowermost ends.
  • the activated carbon coating layer 212 is formed on both sides of the current collector 211 as described above, impurities contained in raw water can be adsorbed on both sides of the current collector 211, thereby improving the adsorption rate and adsorption performance of impurities. have.
  • the activated carbon coating layers 212 are formed on both sides of one current collector 211, the number of current collectors 211 can be reduced. As a result, the thickness of the electrode unit 200a is reduced, and the electrode unit 200a ) Can be reduced in weight, and the manufacturing cost of the electrode unit 200a can be saved. In addition, the amount of stacked activated carbon electrodes 210 may be increased.
  • the spacer 230 is disposed between the activated carbon electrodes 210.
  • the spacers 230 form a gap between the activated carbon electrodes 210 and prevent a short between the activated carbon electrodes 210.
  • the raw water may be purified while passing between the activated carbon electrodes 210 through the spacer 230.
  • the spacer 230 is made of a non-conductor and a water-permeable material, thereby preventing a short between the activated carbon electrodes 210 and providing a flow path through which raw water through which purified water proceeds passes.
  • the spacer 230 may be formed of a nylon material in which a plurality of passages are formed.
  • the electrode means 220 may be provided in a pair, connected to one or the other end portions of the stacked activated carbon electrodes 210, and may be provided as an electric conductor.
  • the electrode means 220 may be formed of a copper (Cu) material.
  • the electrode means 220 may be provided in two or more.
  • contact between the electrode means 220 and the activated carbon electrode 210 may be made stably.
  • at least a portion of the electrode means 220 may be arranged side by side with the activated carbon electrode 210 to make surface contact with the activated carbon electrode 210.
  • the activated carbon electrodes 210 are stacked in parallel with each other, and a part of the electrode means 220 between the activated carbon electrodes 210 is inserted in parallel with the activated carbon electrode 210, and the electrode means 220 and the activated carbon electrode 210 ) Makes an interview.
  • the contact area between the activated carbon electrode 210 and the electrode means 220 is increased, so that current supply can be made more reliably and stably.
  • the conductivity between the activated carbon electrodes 210 may also be improved. Accordingly, the voltage supplied from the power source can be applied to the activated carbon electrode 210 without loss. In addition, a voltage supplied from a power source may be uniformly applied to each of the activated carbon electrodes 210.
  • the power supply means 240 and 250 may include a power supply 240 and an electric wire 250.
  • a voltage may be applied within a range in which water decomposition of raw water is not performed and ion adsorption is possible.
  • the power supply 240 may apply a voltage of 1.5V or less.
  • the electrode unit 220 has a positive or negative electrode depending on the direction of the current flowing through the power supply means (240, 250).
  • the electrode means 220 may include a first electrode means 221 and a second electrode means 222 disposed spaced apart from each other.
  • the second electrode means 222 disposed on the left side of the drawing may be a negative electrode (-). have.
  • the second electrode means 222 disposed on the left side of the drawing may be a positive electrode (+).
  • the first electrode means 221 and the second electrode means 222 disposed on both sides of the activated carbon electrode 210 have an anode and a cathode according to the direction in which the current flows.
  • the electrode means 220 on which the anode is formed is referred to as an anode
  • the electrode means 220 on which the cathode is formed is referred to as a cathode.
  • the plurality of stacked activated carbon electrodes 210 should be formed alternately between adjacent activated carbon electrodes 210 and anodes and cathodes.
  • the meaning of neighboring means that the spacer 230 is placed therebetween and is adjacent. That is, the activated carbon electrode 210 disposed at the top of the drawing may be considered to be adjacent to the second activated carbon electrode 210 disposed immediately below the spacer 230 therebetween.
  • an anode and a cathode are formed on the electrode means 220 disposed on both sides of the activated carbon electrode 210, respectively.
  • the plurality of stacked activated carbon electrodes 210 should be alternately connected to adjacent activated carbon electrodes 210 and an anode and a cathode, respectively.
  • the first activated carbon electrode 210 disposed at the top of the drawing is connected to the anode at the right side, and the second activated carbon disposed below it
  • the electrode 210 may be connected to the cathode on the left.
  • the third activated carbon electrode 210 disposed below the second activated carbon electrode 210 may be connected to the positive electrode on the right side
  • the fourth activated carbon electrode 210 disposed below the third activated carbon electrode 210 may be connected to the left negative electrode.
  • the activated carbon electrode 210 connected to the positive electrode is electrically separated from the negative electrode
  • the activated carbon electrode 210 connected to the negative electrode is electrically separated from the positive electrode
  • the activated carbon electrode 210 disposed at the top of the drawing is connected to the cathode at the left, and the activated carbon electrode 210 disposed below it is It can also be connected to the anode.
  • the activated carbon electrode 210 disposed at the top of the drawing is connected to the anode at the left, and the activated carbon electrode 210 disposed below it is the cathode at the right side. Can be connected with.
  • the activated carbon electrode 210 disposed at the top of the drawing is connected to the cathode at the right side, and the activated carbon electrode 210 disposed below it is It can also be connected to the anode.
  • the activated carbon electrode 210 connected to the positive electrode is electrically separated from the negative electrode
  • the activated carbon electrode 210 connected to the negative electrode is electrically separated from the positive electrode
  • the negative electrode is disposed apart from the activated carbon electrode 210 connected to the positive electrode, and the activated carbon electrode 210 connected to the negative electrode is electrically separated from the positive electrode.
  • the anode may be spaced apart from the activated carbon electrode 210 connected to the cathode.
  • FIG. 3 is a conceptual diagram showing a state in which water is purified in the filter for a water treatment apparatus shown in FIG. 2
  • FIG. 4 is a conceptual diagram illustrating a state in which the filter for a water treatment apparatus shown in FIG. 2 is regenerated.
  • the raw water can be purified.
  • the activated carbon electrode 210 disposed on the right side of the drawing is charged as a positive electrode
  • the activated carbon electrode 210 disposed on the left side of the drawing is charged as a negative electrode
  • the raw water is The included negative ions (-) may be adsorbed to the activated carbon electrode 210 on the right side charged with the positive electrode
  • the positive ions (+) contained in the raw water may be adsorbed on the activated carbon electrode 210 on the left side charged with the negative electrode.
  • the raw water can easily pass between the activated carbon electrodes 210 through the permeable spacers 230 disposed between the activated carbon electrodes 210 to prevent short circuits and secure a flow path.
  • a method for regenerating the activated carbon electrode 210 there is a method of blocking the supply of current, and a method of flowing an electric current opposite to the case of adsorbing ions.
  • the power supply means 240 and 250 supply current in one direction and adsorb ions to the activated carbon electrode 210 to absorb ions in water. Remove.
  • an anion (-) contained in raw water is adsorbed on the left activated carbon electrode 210 charged with the positive electrode, and the activated carbon electrode on the right in which positive ions (+) contained in the raw water are charged as a negative electrode.
  • the activated carbon electrode 210 on the left side of the drawing is charged to the cathode by changing the flow of current, and the activated carbon electrode 210 on the right side of the drawing is charged to the anode. Let it.
  • the negative ions (-) adsorbed on the left activated carbon electrode 210 during the water purification process are separated from the left activated carbon electrode 210 charged with the negative electrode, and the positive ions that were adsorbed on the right activated carbon electrode 210 during the water purification process ( +) is separated from the positively charged activated carbon electrode 210 on the right.
  • the positive ions (+) and negative ions (-) separated by the activated carbon electrodes 210 on both sides are discharged to the outside together with the washing water.
  • the ion removing ability of the electrode unit 200a is regenerated, so that the ion removing ability can be kept constant. .
  • the electrode unit 200a configured as described above may constitute the electrode unit 200 as a single body, and may be provided in plural and then stacked in several layers to configure the electrode unit 200.
  • an ion exchange membrane may be provided to further increase the ion removal rate of the electrode part 200.
  • the ion exchange membrane may be disposed between the spacer 230 and the activated carbon electrode 210.
  • FIG. 5 is a plan view of an electrode part constituting a filter for a water treatment apparatus according to an embodiment of the present invention
  • FIG. 6 is a longitudinal cross-sectional view of a region'A' of FIG. 5.
  • the activated carbon electrode 210 may protrude outside a portion connected to the electrode means 220 to form electrode connection portions 213 and 213'.
  • the first activated carbon electrode 210 disposed at the top has an electrode connection 213 protruding to one side at one end
  • the second activated carbon electrode 210 may have an electrode connection part 213 ′ protruding to the other side at the other end.
  • the odd-numbered activated carbon electrode 210 forms an electrode connection part 213 protruding to one side at one end
  • the even-numbered activated carbon electrode 210 has an electrode connection part 213 ′ protruding to the other side at the other end. Can be formed.
  • the electrode formed on one side is connected to the electrode connection part 213 of the odd-numbered activated carbon electrode 210 protruding to one side, and the electrode formed on the other side is the electrode connection part of the even-numbered activated carbon electrode 210 protruding to the other side ( 213') can be connected.
  • one side and the other side may mean opposite directions that face each other, and may mean directions that are perpendicular to each other. In addition, it may mean the front-rear direction.
  • the first activated carbon electrode 210 disposed at the top of the drawing forms an electrode connection part 213 protruding to one side in front of one side
  • the second activated carbon electrode 210 disposed below it may form an electrode connection part 213 ′ protruding toward one side at the rear of one side.
  • the odd-numbered activated carbon electrode 210 forms an electrode connection part 213 protruding to one side in front of one side
  • the even-numbered activated carbon electrode 210 has an electrode connection part 213 ′ protruding to one side at the rear of one side. Can be formed.
  • the electrode formed in front of one side is connected to all of the electrode connection portions 213 of the odd-numbered activated carbon electrode 210 protruding from one front to one side, and the electrode formed on one rear side is an even-numbered electrode protruding from one rear to one side. It may be connected to all of the electrode connection portions 213 ′ of the activated carbon electrode 210.
  • a structure in which the plurality of stacked activated carbon electrodes 210 are alternately connected to adjacent activated carbon electrodes 210 and an anode and a cathode may occur in various embodiments.
  • the activated carbon electrode 210 adjacent to the activated carbon electrode 210 and the anode and the cathode are formed alternately, heavy metals contained in raw water passing between the activated carbon electrodes 210 spaced apart by the spacer 230, etc.
  • the ions of can be adsorbed and removed.
  • the electrode means 220 includes a first electrode means 221 and a second electrode means 222 disposed spaced apart from each other, and the activated carbon electrode 210 is different from the neighboring activated carbon electrodes 210 It is connected to the electrode means (221,222).
  • the electrode connector 213 of the odd-numbered activated carbon electrode 210 protruding from one front side to one side is connected to the first electrode means 221, and the even-numbered activated carbon electrode 210 protruding from one rear side to one side.
  • the electrode connection part 213 ′ may be connected to the second electrode means 222.
  • the electrode means 220 includes a vertical portion 223 formed parallel to the stacking direction of the activated carbon electrode 210 and parallel to the activated carbon electrode 210, and connected to the vertical portion 223. It may include a plurality of horizontal portions 224.
  • Both the vertical portion 223 and the horizontal portion 224 are formed of a conductor.
  • the vertical portion 223 serves to connect each of the horizontal portions 224.
  • the horizontal portion 224 is inserted between the activated carbon electrodes 210, and conducts electricity while making surface contact with the activated carbon electrode 210.
  • the horizontal portion 224 may be inserted between the odd-numbered activated carbon electrodes 210 to make surface contact.
  • the horizontal portion 224 may be inserted between the even-numbered activated carbon electrodes 210 to make surface contact.
  • connection holes 213a and 224a are formed at positions corresponding to each other in the horizontal part 224 and the electrode connection part 213 of the activated carbon electrode 210, and the connection holes 213a and 224a are formed of conductors.
  • the shaft member 225 is inserted.
  • energization may proceed to each of the horizontal portion 224 and the activated carbon electrode 210 through the shaft member 225 as a conductor.
  • the shaft member 225 may be provided with a bolt.
  • both ends of the shaft member 225 may be fastened with nuts 226. Accordingly, a fastening force between the horizontal portion 224 and the electrode connection portion 213 can be secured.
  • FIG. 7 is a cross-sectional view illustrating a state in which a coating layer is formed on a shaft member in FIG. 6.
  • the shaft member 225 may have an insulating material coating layer 260 formed on the side exposed to the outside.
  • the coating layer 260 may be formed on the entire outer surface of the shaft member 225.
  • the coating layer 260 is the outer side of the shaft member 225 except for a portion connected to the shaft member 225 and the horizontal portion 224 and a portion connected to the shaft member 225 and the electrode connection portions 213 and 213'. It can be formed on the surface.
  • the shaft member 225 and the horizontal portion 224 are connected to each other and the shaft member 225 and the electrode connection portions 213 and 213' are connected to each other in the horizontal direction. It may mean a portion overlapped in the (left-right direction as referenced in FIG. 7) and a portion in which the shaft member 225 and the electrode connection portions 213 and 213' overlap in the horizontal direction (left-right direction as in FIG. 7).
  • the coating layer 260 may be formed on the outside of the shaft member 225 by various known methods.
  • a tube made of an insulating material is inserted outside the shaft member 225, and the tube is contracted while applying heat to the tube, and the tube is in close contact with the outer side of the shaft member 225 to form a coating layer ( 260) can be formed.
  • the tube forming the coating layer 260 may be made of a material that shrinks when heat is applied.
  • the coating layer 260 may be formed by coating an epoxy on the outside of the shaft member 225.
  • the coating layer 260 may be formed of a waterproof material.
  • the coating layer 260 is formed on the outside of the shaft member 225 made of a metal material, particularly copper, brass, etc., the elution of the metal component from the shaft member 225, especially the elution of copper and zinc components. Can be prevented.
  • the coating layer 260 may be formed on at least a portion of the vertical portion 223 and the horizontal portion 224 as well as the shaft member 225.
  • the coating layer 260 may be formed of a metal material and may be formed on the entire or partial surface of a component that may be in contact with water introduced into the chamber 100.
  • FIG. 8 is a conceptual diagram showing a connection state of an electrode unit, which is a main configuration of the present invention.
  • the plurality of activated carbon electrodes 210 are connected in parallel to each other.
  • the activated carbon electrodes 210 constituting one electrode unit 200a are connected in parallel to each other, and the same current may flow through the activated carbon electrode 210 in one electrode unit 200a.
  • a plurality of electrode units 200a are provided, and the plurality of electrode units 200a are connected in series with each other.
  • a plurality of activated carbon electrodes 210 constituting one electrode unit 200a are connected in parallel to each other, so that a uniform current is applied to each activated carbon electrode 210, and filtering performance in the entire area Can be secured.
  • the required current value can be lowered than when the plurality of electrode units 200a are connected in parallel.
  • 240 activated carbon electrodes when 240 activated carbon electrodes are included in one filter, in the conventional case, 240 activated carbon electrodes have a structure connected to each other in parallel.
  • a driving current of 20A or more is required based on 1 m 2 of the activated carbon electrode.
  • the unit cost of the PCB power supply unit SMPS (Swiched-Mode Power Supply) and output control parts such as current sensors, Power FETs (Field Effect Transistors), and relays increases.
  • 60 activated carbon electrodes are connected in parallel to each other in order to increase voltage and reduce current at the same time to form an electrode unit 200a, and each electrode unit 200a is connected in series.
  • the required power is maintained as it is, so that the voltage can be increased by 4 times and the current can be reduced to 1/4.
  • the operating current can be reduced and the current can be reduced to 8A or less as the voltage increases, and accordingly, the PCB requirement specification of the household product With less than 8A, it can be confirmed that the required operating current can be maintained.
  • FIG. 9 is a graph showing a change in a voltage value supplied to an electrode unit over time.
  • FIG. 9A is a graph showing a change in a voltage value supplied to an electrode unit in the related art
  • Fig. 9B is a graph showing a change in a voltage value supplied to an electrode unit according to the present invention.
  • a cycle of applying a voltage of 2.0V, applying a voltage of 0V, applying a voltage of 2.0V again, and applying a voltage of 0V is repeated.
  • the (+) pole continues to maintain the (+) pole
  • the (-) pole continues to maintain the (-) pole.
  • the activated carbon electrode 210 has a thin structure of 500 ⁇ m per sheet, and as the reaction is repeatedly performed, the performance decreases due to the formation of scale and deterioration of carbon.
  • the power supply means 240 and 250 supply current in one direction and adsorb ions to the activated carbon electrode 210 to absorb ions in water. Remove.
  • a cycle of applying a voltage of 2.0V, applying a voltage of 0V, applying a voltage of -2.0V, and applying a voltage of 0V is repeated.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

La présente invention concerne un filtre pour un dispositif de traitement de l'eau, qui adsorbe les ions de l'eau entrante de façon à évacuer l'eau après en avoir éliminé les ions, le filtre comprenant : une chambre formant l'aspect extérieur ; une unité d'électrode comprenant une partie d'électrode logée à l'intérieur de la chambre ; et un moyen d'alimentation électrique permettant de fournir de l'énergie à la partie d'électrode de l'unité d'électrode, dans lequel : la partie électrode comporte un collecteur de courant, une pluralité d'électrodes de charbon actif constituées du charbon actif formé sur la surface du collecteur de courant et présentant une forme plane, des entretoises en matériau isolant insérées entre les électrodes de charbon actif afin d'éviter un court-circuit, et une pluralité de moyens d'électrode connectée d'un côté ou de l'autre de la pluralité d'électrodes de charbon actif empilées et dont au moins une partie est disposée en parallèle avec les électrodes de charbon actif de manière à réaliser un contact de surface avec les électrodes de charbon actif ; et le moyen d'alimentation électrique fournit du courant aux électrodes de charbon actif par l'intermédiaire du moyen d'électrode de telle sorte que les électrodes de charbon actif adjacentes sont formées par une alternance de cathodes et d'anodes.
PCT/KR2020/008849 2019-08-19 2020-07-07 Filtre pour dispositif de traitement de l'eau WO2021033918A1 (fr)

Applications Claiming Priority (2)

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KR10-2019-0101294 2019-08-19
KR1020190101294A KR20210021836A (ko) 2019-08-19 2019-08-19 수처리 장치용 필터

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WO2021033918A1 true WO2021033918A1 (fr) 2021-02-25

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KR102572460B1 (ko) * 2021-04-29 2023-08-30 엘지전자 주식회사 수 처리 장치용 필터

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KR20130136406A (ko) * 2012-06-04 2013-12-12 코웨이 주식회사 탈이온 필터, 탈이온 필터를 포함하는 수처리기 및 탈이온 필터의 재생방법
KR20140069581A (ko) * 2012-11-29 2014-06-10 삼성전자주식회사 전기 흡착 탈이온 장치 및 이를 사용한 유체 처리 방법
KR20140098241A (ko) * 2012-01-16 2014-08-07 구라레 케미칼 가부시키가이샤 통액형 캐패시터, 탈이온액 제조 장치 및 탈이온액의 제조 방법
KR101818621B1 (ko) * 2016-09-05 2018-02-21 한국과학기술원 축전식 탈염 장치 및 이의 운영 방법
KR20190090651A (ko) * 2018-01-25 2019-08-02 엘지전자 주식회사 수처리 장치용 필터 및 이를 포함하는 수처리 장치

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Publication number Priority date Publication date Assignee Title
KR20140098241A (ko) * 2012-01-16 2014-08-07 구라레 케미칼 가부시키가이샤 통액형 캐패시터, 탈이온액 제조 장치 및 탈이온액의 제조 방법
KR20130136406A (ko) * 2012-06-04 2013-12-12 코웨이 주식회사 탈이온 필터, 탈이온 필터를 포함하는 수처리기 및 탈이온 필터의 재생방법
KR20140069581A (ko) * 2012-11-29 2014-06-10 삼성전자주식회사 전기 흡착 탈이온 장치 및 이를 사용한 유체 처리 방법
KR101818621B1 (ko) * 2016-09-05 2018-02-21 한국과학기술원 축전식 탈염 장치 및 이의 운영 방법
KR20190090651A (ko) * 2018-01-25 2019-08-02 엘지전자 주식회사 수처리 장치용 필터 및 이를 포함하는 수처리 장치

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