KR20100033109A - A purifier for water treatment - Google Patents

A purifier for water treatment Download PDF

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Publication number
KR20100033109A
KR20100033109A KR1020080092105A KR20080092105A KR20100033109A KR 20100033109 A KR20100033109 A KR 20100033109A KR 1020080092105 A KR1020080092105 A KR 1020080092105A KR 20080092105 A KR20080092105 A KR 20080092105A KR 20100033109 A KR20100033109 A KR 20100033109A
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South Korea
Prior art keywords
line
way valve
filter
raw water
water
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KR1020080092105A
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Korean (ko)
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윤명순
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윤명순
주식회사성우
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Priority to KR1020080092105A priority Critical patent/KR20100033109A/en
Publication of KR20100033109A publication Critical patent/KR20100033109A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/16—Valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/04—Backflushing
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/005—Valves
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/03—Pressure

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Filtration Of Liquid (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE: A filtering apparatus for water treatment is provided to simply perform a filtering and a backwashing processes, and to prevent contamination of processed water by clearly discharging contaminants in a pipe. CONSTITUTION: A filtering apparatus for water treatment comprises the following: a raw water supply line(20) supplying raw water to a filtering device(30); a drain line(40) discharging processed water discharged through the filtering device; a four-way valve(50) selectively supplying raw water to the supply line or the drain line; a three-way valve(60) installed on the drain line; a wastewater line(70); and a control part(80) converting a process according to a detected signal of a pressure detector.

Description

수처리용 여과장치{A purifier for water treatment}A purifier for water treatment

본 발명은 여과기에 원수를 공급하는 공급라인과 처리수를 배수하는 배수라인에 별도의 연결라인을 갖지 않고 역세척 공정을 간편하게 수행할 수 있도록 하기 위한 수처리용 여과장치에 관한 것이다.The present invention relates to a filtration apparatus for water treatment to easily perform the backwashing process without having a separate connection line in the supply line for supplying the raw water to the filter and the drainage line for draining the treated water.

일반적으로 수처리용 여과장치는 탁도 성분 등이 함유된 원수를 정수처리하기 위한 전처리과정으로 이루어지는 공정으로서, Generally, a filtration apparatus for water treatment is a process consisting of a pretreatment process for purifying raw water containing turbidity components and the like,

원수를 여과할 때에는 공급되는 원수를 펌프에 의하여 공급라인을 통해 여과기에 공급하여 여과기에 의하여 여과되어 배출되는 물은 배수라인을 통해 저류조로 공급되어지며, When the raw water is filtered, the raw water is supplied to the filter through a supply line by a pump, and the water filtered out by the filter is supplied to a storage tank through a drain line.

여과기를 역세척할 경우에는 원수 또는 세정수를 펌프에 의해 배수라인과 연결되는 역세척 공급라인을 통해 여과기에 역방향으로 공급하여 공급라인과 연결되는 폐수라인을 통해 외부로 배출되도록 하고 있다.In the case of backwashing the filter, raw water or washing water is supplied to the filter in a reverse direction through a backwashing supply line connected to the drainage line by a pump to be discharged to the outside through a wastewater line connected to the supply line.

그런데 상기에서와 같이 여과 및 역세척하는 연결라인이 각각 구비되어 개별적으로 개폐시키도록 함으로서 연결라인이 많아지고 그에 따른 개폐밸브의 조작이 많아져 여과공정에 역세척 공정으로 변환시키거나 이와 반대로 변환시킬 경우 조작 하는데 상당히 번거로울 뿐만 아니라 구조가 복잡한 문제점이 있다.However, as described above, the connection lines for filtration and backwashing are respectively provided to open and close individually, so that the number of connection lines increases and the operation of the on / off valves increases, so that the filtration process is converted into the backwashing process or vice versa. The case is not only cumbersome to operate, but also has a complicated structure.

또한 정,배수라인에 별도의 연결라인을 분기관 형태로 연결되기 때문에 각 분기관에 잔존하는 오염된 물이 정수공정에서 유입되어 오염시키는 문제점이 있다.In addition, since a separate connection line is connected to the forward and drainage lines in the form of branch pipes, contaminated water remaining in each branch pipe flows into the water purification process and contaminates.

본 발명은 여과기에 원수를 공급하는 여과 공급라인과 여과된 원수를 배수하는 배수라인에 별도의 연결라인을 갖지 않고 역세척 공정을 수행할 수 있도록 하여 간편하게 자동으로 여과 및 역세척 공정을 수행할 수 있도록 한 수처리용 여과장치를 제공하고자 하는 목적을 갖는다.The present invention can easily perform the filtration and backwashing process by allowing the backwashing process to be carried out without having a separate connection line in the filtration supply line for supplying raw water to the filter and the drainage line for draining the filtered raw water. It is an object of the present invention to provide a filtration device for water treatment.

본 발명은 상기한 목적을 구현하기 위한 구성수단에 대하여 살펴보면 다음과 같다.The present invention will be described with reference to the configuration means for implementing the above object.

원수를 펌프에 의해 공급라인을 통해 여과기에 공급하고 여과기를 거쳐 배수되는 처리수를 다음 공정으로 공급하는 배수라인을 갖는 수처리용 여과장치로서,A filtration apparatus for water treatment having a drainage line for supplying raw water to a filter through a supply line through a pump and for supplying treated water drained through the filter to a next process,

상기 원수 공급라인과 배수라인의 중간부분이 각각 사방밸브에 입출되도록 연결하여 원수가 사방밸브에 의하여 공급라인 또는 배수라인에 선택적으로 연결되도록 함과, 상기 배수라인선상에 삼방밸브를 구비하여 배수라인이 입출되면서 어느 한 방향으로 폐수라인을 연결하여 삼방밸브에 의하여 선택적으로 연결되도록 함과, 상기 각 사방밸브 및 삼방밸브를 포함하여 각 개폐밸브들은 여과기에 구비된 압력감지기의 감지신호에 따라 제어부에 의해 작동되어 여과 또는 역세척 공정으로 전환되도록 함으로서 본 발명을 완성할 수 있게 되는 것이다.Intermediate portions of the raw water supply line and the drain line are respectively connected to the four-way valve so that the raw water is selectively connected to the supply line or the drain line by the four-way valve, and the three-way valve is provided on the drain line. The inlet and outlet are connected to the wastewater line in either direction to be selectively connected by a three-way valve, and each of the on-off valves including the four-way valve and the three-way valve are connected to the control unit according to the detection signal of the pressure sensor provided in the filter. To be converted to a filtration or backwashing process to complete the present invention.

이하 본원발명의 구체적인 기술사상을 구현하기 위한 발명의 실시형태는 '발 명의 실시를 위한 구체적인 내용'란 기재에서 도면을 참조하여 상세히 설명하기로한다.Hereinafter, embodiments of the present invention for implementing the specific technical idea of the present invention will be described in detail with reference to the accompanying drawings.

이상과 같이 본 발명은 여과 공급라인과 배수라인을 사방밸브에 의하여 선택적으로 변경하도록 하여 역세척 공정을 병행할 수 있도록 하여 여과기에 여과기능을 저하될 경우 자동으로 역세척공정이 수행되도록 함으로서 유지관리가 간편할 뿐만 아니라 분기관을 사용하지 않아 관로 내부에 오염물이 잔존하지 않게 되므로 처리수의 오염을 방지하는 등의 효과가 있다.As described above, the present invention allows the filter supply line and the drain line to be selectively changed by the four-way valve so that the backwashing process can be performed in parallel so that the backwashing process is automatically performed when the filtration function is lowered in the filter. It is not only easy to use because the branch pipe does not have contaminants remaining in the pipeline, so there is an effect of preventing the contamination of the treated water.

본 발명의 바람직한 실시 예를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

먼저 본원의 기술사상을 구현하기 위한 발명의 실시양태를 기재하기에 앞서, 본 출원의 명세서나 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 될 것이며, 본원의 보호범위는 본원발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 할 것이며, 본 명세서에 기재된 예시는 본 발명의 일 실시 양태를 기재한 것에 불과할 뿐이고 본원의 기술사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형 예들이 있을 수 있음을 이해하여야 할 것이다.Prior to describing embodiments of the invention for implementing the technical idea of the present application, the terms or words used in the specification or claims of the present application should not be construed as being limited to the ordinary or dictionary meanings, The scope of protection should be construed as meanings and concepts corresponding to the technical spirit of the present invention, and the examples described herein are merely describing one embodiment of the present invention and do not represent all of the technical ideas of the present application. It is to be understood that there may be various equivalents and variations that can substitute for them at the time of the present application.

도 1은 본 발명의 여과처리공정을 보인 구성도이고, 도 2는 본 발명에서 역세척 공정을 보인 구성도를 나타낸 것으로 이들 도면에 의하여 구체적으로 설명한다.1 is a block diagram showing a filtration treatment process of the present invention, Figure 2 is a block diagram showing a back washing process in the present invention will be described in detail by these figures.

원수를 펌프(10)에 의해 여과기(30)에 공급하는 원수 공급라인(20)과 상기 여과기(30)를 통해 배수되는 처리수를 다음 공정으로 배송하는 배수라인(40)이 각각 사방밸브(50)에 입출되도록 연결하여 원수가 사방밸브(50)에 의하여 공급라인(20) 또는 배수라인(40)에 선택적으로 연결되도록 한다.The raw water supply line 20 for supplying raw water to the filter 30 by the pump 10 and the drain line 40 for delivering the treated water drained through the filter 30 to the next process are respectively four-way valves 50. ) Is connected to the inlet and out so that the raw water is selectively connected to the supply line 20 or the drain line 40 by the four-way valve 50.

상기 배수라인(40) 선상에 삼방밸브(60)를 구비하여 배수라인(40)이 입출되면서 어느 한 방향으로 폐수라인(70)을 연결하여 삼방밸브(60)에 의하여 선택적으로 연결되도록 한다.The three-way valve 60 is provided on the line of the drainage line 40 so that the drainage line 40 is connected to the wastewater line 70 in one direction to be selectively connected by the three-way valve 60.

상기 각 사방밸브(50) 및 삼방밸브(60)를 포함하여 각 개폐밸브들은 여과기(30)에 구비된 압력감지기(90)의 감지신호에 따라 제어부(80)에 의해 작동되어 여과 또는 역세척 공정으로 전환되도록 한다.Each open / close valve including the four-way valve 50 and the three-way valve 60 is operated by the controller 80 according to the detection signal of the pressure sensor 90 provided in the filter 30 to perform filtration or backwashing. To switch to.

즉, 여과기(30)에 여과기능이 저하면 설정압력이상이 발생하고 이 감지신호에 의해 사방밸브(50)에 포함하는 액츄레이터의 작동으로 전방측의 공급라인(20)이 배수라인(40)과 연통되도록 전환되고 동시에 후방측의 공급라인이 후방측의 배수라인(40)과 연통되도록 전환되는 상태가 되며, 또한 삼방밸브(60)의 작동으로 배수라인(40)이 폐수라인(70)과 연통되도록 전환되도록 한 것이다.That is, when the filtration function of the filter 30 decreases, a set pressure anomaly occurs, and the supply line 20 of the front side is drained by the operation of the actuator included in the four-way valve 50 by this detection signal. The supply line on the rear side is switched to communicate with the drain line 40 on the rear side, and the drainage line 40 is connected to the wastewater line 70 by the operation of the three-way valve 60. It was converted to communicate.

상기 사방밸브(50)는 사방으로 관이 연결되어 액츄레이터에 의하여 관로의 방향을 변경할 수 있도록 구성되고 액츄레이터는 제어부의 신호에 의하여 작동되도 록 구성된 것이다. The four-way valve 50 is configured to change the direction of the pipe by the actuator is connected to the pipe in all directions and the actuator is configured to be operated by the signal of the control unit.

상기 공급라인(20)의 입구 및 배수라인(40)의 말단부에는 각각 개폐밸브가 구비하되 배수라인(40)측의 개폐밸브는 첵크밸브를 적용하는 것이 바람직하다.Opening valves are provided at the inlet of the supply line 20 and the distal end of the drain line 40, respectively, but it is preferable to apply a check valve to the open / close valve at the drain line 40 side.

상기 여과기(30)는 원형통의 여과통 내부에 여러종류의 여과재를 적층한 것이고, 여과재는 주로 활성탄과 여사가 적용된다.The filter 30 is a stack of various kinds of filter media inside the filter barrel of the circular cylinder, the filter medium is mainly activated carbon and the female.

상기 처리수 배수라인(40)의 말단부에 원수 유입라인(20)과 밸브를 포함하는 리턴라인(100)을 연결하여 선택적으로 순환공정을 갖도록 할 수 있다.By connecting the return line 100 including the raw water inlet line 20 and the valve to the distal end of the treated water drain line 40 may have a selective circulation process.

이와 같이 구성한 본 발명에 대하여 작동상태를 구체적으로 설명하면,Referring to the operating state of the present invention configured as described above in detail,

여과공정을 수행할 경우에는 도 1에서와 같이 펌프(10)에 의하여 원수를 공급라인(20)을 통해 여과기(30)의 상부로 공급되어 여과기(30)를 거치면서 내부에 적층된 여과재에 의해 여과되어 배출되는 물은 배수라인(40)을 통해 다음 공정의 저류조 등으로 보내지게 되는 것이다.In the case of performing the filtration process, as shown in FIG. 1, the raw water is supplied to the upper portion of the filter 30 through the supply line 20 by the pump 10, and the filter material stacked therein while passing through the filter 30. The filtered water is discharged to the storage tank of the next process through the drain line (40).

이러한 여과과정이 어느 정도 지속하다 보면 여과기(30) 내부에 이물질 등으로 막히어 여과기능이 저하됨에 따라 내부 압력이 상승하고 이를 제어부(80)에서 감지하여 설정압력 이상이 되면 여과공정을 정지시키면서 역세척공정으로 전환시키게 되는 것이다.If the filtration process continues to some extent, the internal pressure rises as the filtration function is lowered due to the deterioration of the filtration function due to the foreign matter inside the filter 30, and the controller 80 detects the internal pressure to stop the filtration process. It will be converted to a cleaning process.

역세척 공정의 전환은 도 2에서와 같이 제어부(80)의 신호에 의해 사방밸브(50)에 포함하는 액츄레이터의 작동으로 전방 측의 공급라인(20)이 배수라인(40)과 연통되도록 전환되고 동시에 후방 측의 공급라인(20)이 후방 측의 배수라인(40)과 연통되도록 전환되는 상태가 되며, 또한 삼방밸브(60)의 작동으로 배수라인(40) 이 폐수라인(70)과 연통되도록 전환되는 상태가 된다.Switching of the backwashing process is performed so that the supply line 20 on the front side communicates with the drain line 40 by the operation of the actuator included in the four-way valve 50 by the signal of the controller 80 as shown in FIG. 2. And at the same time, the supply line 20 on the rear side is switched to communicate with the drain line 40 on the rear side, and the drain line 40 communicates with the waste water line 70 by the operation of the three-way valve 60. It is in a state of switching.

이러한 상태에서 펌프(10)에 의해 원수가 사방밸브(40)에 의해 배기라인(40)으로 공급되어 역방향인 하부에서 위로 여과기(30)를 통과하는 과정에서 여과재에 끼인 이물질 등이 위로 부상하여 상부에 연결된 공급라인(20)으로 배출되어 사방밸브(50)에 연결된 배수라인(40)을 거치면서 삼방밸브(60)의 작동으로 연결된 폐수라인(70)을 통해 외부로 배출되게 되는 과정에 의하여 역세척 공정이 이루어진다.In this state, the raw water is supplied to the exhaust line 40 by the four-way valve 40 by the pump 10 and foreign matters caught in the filter medium are raised upward while passing through the filter 30 from the lower side in the reverse direction. Reversed by the process to be discharged to the supply line 20 connected to the discharge line 40 through the waste water line 70 connected to the operation of the three-way valve 60 while passing through the drain line 40 connected to the four-way valve 50 The cleaning process takes place.

그리고 역세척 공정이 완료되어 여과기능을 수행할 때 내부의 잔존하는 오염물을 제거하기 위한 선택적인 방법으로 리턴라인(100)의 개폐밸브를 오픈시키어 여과공정을 수행하면 물이 순환되도록 한 후 외부로 배출시킨 후 정상적인 여과공정을 수행하게 되는 것이며, 여기서 처리수 배수라인(40)의 말단부에 위치한 첵크밸브를 선택적으로 막고 사용될 수 있다. When the backwashing process is completed and the filtration function is performed, an opening and closing valve of the return line 100 is opened as an optional method for removing the remaining contaminants therein. After the discharge is to perform a normal filtration process, it can be used to selectively block the check valve located at the distal end of the treated water drain line (40).

도 1은 본 발명의 여과처리공정을 보인 구성도1 is a block diagram showing a filtration treatment process of the present invention

도 2는 본 발명에서 역세척 공정을 보인 구성도Figure 2 is a block diagram showing a backwashing process in the present invention

*도면에 대한 주요부호 설명** Description of Key Symbols for Drawings *

10: 펌프 20: 공급라인10: pump 20: supply line

30: 여과기 40: 배수라인30: filter 40: drainage line

50: 사방밸브 60: 삼방밸브50: four-way valve 60: three-way valve

70: 폐수라인 80: 제어부70: wastewater line 80: control unit

90: 압력감지기90: pressure sensor

Claims (3)

원수를 펌프(10)에 의해 공급라인(20)을 통해 여과기(30)에 공급하고 여과기(30)를 거쳐 배수되는 처리수를 다음 공정으로 공급하는 배수라인(40)을 갖는 수처리용 여과장치로서,As a filtration device for water treatment having a drain line 40 for supplying raw water to the filter 30 through the supply line 20 by the pump 10 and the treated water drained through the filter 30 to the next process. , 상기 원수 공급라인(20)과 배수라인(40)이 각각 사방밸브(50)에 입출되도록 연결하여 원수가 사방밸브(50)에 의하여 공급되는 원수가 공급라인(20)과 배수라인(40)에 선택적으로 공급되도록 연결함과, The raw water supply line 20 and the drain line 40 are connected to the four-way valve 50, respectively, so that the raw water supplied by the four-way valve 50 to the supply line 20 and the drain line 40. Connecting to supply selectively, 상기 배수라인(40) 선상에 삼방밸브(60)를 구비하여 배수라인(40)이 입출되면서 어느 한 방향으로 폐수라인(70)을 연결하여 삼방밸브(60)에 의하여 선택적으로 연결되도록 하여 역세척 공정을 수행하도록 함을 특징으로 하는 수처리용 여과장치.The three-way valve 60 is provided on the drainage line 40 so that the drainage line 40 enters and exits, thereby connecting the wastewater line 70 in one direction to be selectively connected by the three-way valve 60. Filtration device for water treatment, characterized in that to perform the process. 제 1항에 있어서, 상기 각 사방밸브(50) 및 삼방밸브(60)를 포함하여 각 개폐밸브들은 여과기(30)에 구비된 압력감지기(90)의 감지신호에 따라 제어부(80)에 의해 작동되어 여과 또는 역세척 공정으로 전환되도록 함을 특징으로 하는 수처리용 여과장치.According to claim 1, wherein each of the opening and closing valves including the four-way valve 50 and the three-way valve 60 is operated by the control unit 80 in accordance with the detection signal of the pressure sensor 90 provided in the filter 30 Filtered for water treatment characterized in that the conversion to the filtration or backwash process. 제 1 항에 있어서, 상기 처리수 배수라인(40)의 말단부에 원수 유입라인(20)과 개폐밸브를 포함하는 리턴라인(100)을 연결하여 선택적으로 순환공정을 갖도록 함을 특징으로 하는 수처리용 여과장치.The method of claim 1, wherein the raw water inlet line 20 and the return line 100 including the on-off valve is connected to the distal end of the treated water drain line 40 to selectively have a circulation process. Filtration device.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101242511B1 (en) * 2011-01-19 2013-03-12 최승우 Movable type filtering device
KR101359340B1 (en) * 2011-11-10 2014-02-11 주식회사 담형엔지니어링 Automatic backwashing of filtering device for washing water
KR20140115259A (en) * 2013-03-20 2014-09-30 코웨이 주식회사 Electro deionization-type water treatment apparatus
KR101449630B1 (en) * 2013-04-18 2014-10-13 주식회사 알카메디 Valve device
WO2015020315A1 (en) * 2013-08-05 2015-02-12 코웨이 주식회사 Cdi type water treatment device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101242511B1 (en) * 2011-01-19 2013-03-12 최승우 Movable type filtering device
KR101359340B1 (en) * 2011-11-10 2014-02-11 주식회사 담형엔지니어링 Automatic backwashing of filtering device for washing water
KR20140115259A (en) * 2013-03-20 2014-09-30 코웨이 주식회사 Electro deionization-type water treatment apparatus
KR101449630B1 (en) * 2013-04-18 2014-10-13 주식회사 알카메디 Valve device
WO2015020315A1 (en) * 2013-08-05 2015-02-12 코웨이 주식회사 Cdi type water treatment device
KR20150017017A (en) * 2013-08-05 2015-02-16 코웨이 주식회사 Cdi type water treatment apparatus
CN105452176A (en) * 2013-08-05 2016-03-30 豪威株式会社 CDI type water treatment device
CN105452176B (en) * 2013-08-05 2018-01-26 豪威株式会社 CDI type water treatment facilities
US10040706B2 (en) 2013-08-05 2018-08-07 Coway Co., Ltd. CDI type water treatment apparatus

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