KR20080082331A - Water treatment apparatus for industrial - Google Patents

Water treatment apparatus for industrial Download PDF

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Publication number
KR20080082331A
KR20080082331A KR1020070023079A KR20070023079A KR20080082331A KR 20080082331 A KR20080082331 A KR 20080082331A KR 1020070023079 A KR1020070023079 A KR 1020070023079A KR 20070023079 A KR20070023079 A KR 20070023079A KR 20080082331 A KR20080082331 A KR 20080082331A
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South Korea
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water
membrane filter
pump
limit sensor
storage tank
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KR1020070023079A
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Korean (ko)
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KR100876548B1 (en
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박점수
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(주)에이케이시스텍
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025Reverse osmosis; Hyperfiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Other filtering devices; Auxiliary devices for filtration; Filter housing constructions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D37/00Processes of filtration
    • B01D37/04Controlling the filtration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/008Control or steering systems not provided for elsewhere in subclass C02F
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis

Abstract

An industrial apparatus for water purification is provided to extend the service life of the membrane filter and supply purified water into the water storage tank more efficiently by automatically supplying the raw water and draining filtered water(wastewater) through a membrane filter while receiving the raw water during initially supplying raw water or when a level of water filled in a water storage tank reaches a limit value. An industrial apparatus for water purification comprises: a pump(10) for supplying raw water; a reverse osmosis membrane filter(20) for purifying raw water supplied through the pump, the reverse osmosis membrane filter having a drain port(20a) and a discharge port(20b) for separately discharging purified water to a discharge line(P2) having a pressure control valve(21) together with a supply line(P1); a water storage tank(30) which collects purified water discharged from the discharge port of the reverse osmosis membrane filter through the supply line, which has an upper limit sensor(S1) and a lower limit sensor(S2) formed on an inner part thereof to sense a water level, and which has a water supply port(30a) formed on a bottom part thereof; and a water level control part(40) electrically connected to the upper limit sensor and the lower limit sensor of the water storage tank side to control drive of the pump, wherein the industrial apparatus for water purification further comprises a solenoid valve(50) installed on the discharge line of the discharge port side of the reverse osmosis membrane filter to discharge wastewater temporarily, and a timer(60) electrically connected to the water level control part and the pump to supply raw water initially and open the pump and the solenoid valve for a predetermined time according to sensing of a water level through the lower limit sensor of the water storage tank.

Description

산업용 정수장치{Water treatment apparatus for Industrial}Water treatment apparatus for Industrial
도 1은 본 발명인 산업용 정수장치를 개략적으로 도시한 구성도.1 is a schematic view showing an industrial water purifying apparatus of the present invention.
◎ 도면의 주요부분에 대한 부호설명 ◎◎ Explanation of code for main part of drawing ◎
10: 펌프 20: 역삼투 멤브레인필터 10: pump 20: reverse osmosis membrane filter
21: 압력조절밸브 30: 저장탱크21: pressure regulating valve 30: storage tank
40: 수위제어부 50: 솔레노이드밸브40: water level control unit 50: solenoid valve
60: 타이머 P1: 공급라인60: Timer P1: Supply Line
P2: 배출라인 S1: 상한센서P2: discharge line S1: upper limit sensor
S2: 하한센서S2: lower limit sensor
본 발명은 산업용 정수장치에 관한 것으로서, 좀더 상세하게는 원수의 공급에 따라 역삼투 멤브레인필터(R/O: Reverse Osmosis Membrane filter)를 통해 정수되어 수조 탱크에 채워 사용하도록 한 것에 있어, 원수의 초기 공급시, 저수탱크 내에 채워진 물을 사용한계에 다다른 상태에서 자동으로 원수의 공급과 더불어 멤브레인필터를 통해 원수를 공급받으면서 걸러진 물(폐수)을 배수시켜 멤브레인필터 의 사용 수명연장을 늘리고, 저수탱크에 채워지는 정수의 공급을 보다 효율적으로 운영할 수 있도록 한 것이다. The present invention relates to an industrial water purification device, and more particularly, in order to be purified through a reverse osmosis membrane filter (R / O) according to the supply of raw water to be filled and used in the tank tank, When supplying, it extends the service life of the membrane filter by draining the filtered water (wastewater) while receiving raw water through the membrane filter as well as automatically supplying raw water in the state of using the water filled in the reservoir tank. It is to make the supply of purified water filled in more efficient.
일반적으로 원수를 공급하면서 정수할 수 있도록 한 정수장치는 지금까지 여러 형태의 필터설치와 그 필터의 성능, 기능성을 향상시켜 정수시스템에 채용하여 사용되고 있다.In general, water purifiers capable of purifying water while supplying raw water have been used in water purification systems to improve the performance and functionality of various types of filter installations and their filters.
이에 대표적이라 할 수 있는 정수는 필터식과 역삼투압식을 혼용하여 만들어진 정수시스템이 이용되고 있다.Representative water purification system is a water purification system made by using a mixture of filter and reverse osmosis.
제품의 가공, 제작, 세척 등의 용도로서 대용량의 정수된 물을 산업용, 혹은 공업용으로 사용하고자 하는 의미에서 원수의 성분에서 해당하는 제거물질만을 효율적으로 제거토록 하여 이용하는 범위가 확대되고 있다.In order to use the product for processing, manufacturing, washing, etc., a large amount of purified water is used for industrial or industrial purposes, and thus the range of efficiently removing only the corresponding removal material from the components of raw water is being expanded.
보통 산업용 정수장치에 있어, 최초 원수를 공급받아 정수시키는 역삼투 멤브레인 필터를 통과하게 되는 원수의 정수는, 별도의 펌프의 구동에 따라 공급된 원수에 포함된 유기 및 무기 오염물질, 세균, 각종 바이러스, 중금속을 포함한 이온성 물질에 대해 99%에 가깝게 제거되며, 여기서 제거물질과 분리되어 깨끗이 정수된 물은 저수탱크에 공급되는 형태로서 사용하게 된다.In general industrial water purification equipment, the raw water purified water passing through the reverse osmosis membrane filter that receives the original raw water is purified by organic and inorganic contaminants, bacteria, and various viruses contained in the raw water supplied by a separate pump. For example, water is removed from the ionic material, including heavy metals, close to 99%, where the purified water separated from the removal material is used as a supply to the reservoir tank.
상기와 같은 작용에 대한 제거물질은 별도의 감압밸브를 통해 정수되는 물의 양보다 많은 폐수를 배출시키게 된다.The removal material for the above action is to discharge more wastewater than the amount of water purified through a separate pressure reducing valve.
이러한 역삼투 멤브레인필터식 정수에 있어, 최초 원수를 공급받아 정수시키는 멤브레인 필터는 수명이 짧아 비교적 단기간 내에 이 필터를 별도로 교체 및 관리해야 하는 문제점이 있었다.In such a reverse osmosis membrane filter type purified water, the membrane filter to receive the first raw water is a short life has a problem that must be replaced and managed separately in a relatively short time.
이는 짧은 기간에 필터를 자주 교체해 주게 됨으로써 발생되는 필터의 구입부담과 교체 관리에 신경써야 하는 번거로움이 있기 때문에 특히 산업용 정수기의 경우 제품에 대한 신뢰성이 떨어지는 문제점이 있었다.This is a problem in that the reliability of the product is particularly low in the case of industrial water purifier because there is a need to pay attention to the purchase and replacement management of the filter caused by frequent replacement of the filter in a short period of time.
본 발명은 상기와 같이 제반되는 문제점을 위하여 발명된 것으로, 산업용 정수장치의 구성요소의 적정설치에 따라 원수의 초기 공급시, 저수탱크 내에 채워진 물의 사용량이 한계에 이르는 시점에서 자동으로 원수의 공급과 더불어 멤브레인필터를 통해 원수를 공급받으면서 걸러진 물(폐수)을 배수시켜 멤브레인필터의 사용 수명연장을 늘리고, 저수탱크에 채워지는 정수의 공급을 보다 효율적으로 운영할 수 있도록 하는데 그 목적이 있다.The present invention has been invented for various problems as described above, when the initial supply of raw water according to the proper installation of the components of the industrial water purification equipment, the supply of raw water automatically at the time when the amount of water filled in the storage tank reaches the limit In addition, the purpose is to increase the useful life of the membrane filter by draining the filtered water (wastewater) while receiving raw water through the membrane filter, and to more efficiently operate the supply of purified water filled in the reservoir tank.
상기 목적을 달성하기 위한 본 발명에 의하면, 원수를 공급하기 위한 펌프와, 상기 펌프를 통해 공급되는 원수를 공급받아 정화시키고, 정화된 물을 공급라인과 함께 압력조절밸브가 구비된 배출라인으로 분리 배출하기 위한 배수구와 토출구가 마련된 역삼투 멤브레인필터와, 상기 역삼투 멤브레인필터의 토출구측으로부터 배출되는 정수를 공급라인을 통해 집수시키며, 내부에 수위를 감지하기 위한 상한센서 및 하한센서가 마련되고, 하부에 급수구가 구비된 저수탱크와, 상기 저수탱크측의 상한센서 및 하한센서에 전기적으로 연결 설치되어 펌프의 구동을 제어하는 수위제어부로 이루어진 산업용 정수장치에 있어서,According to the present invention for achieving the above object, the pump for supplying the raw water, and purified by receiving the raw water supplied through the pump, the purified water is separated into a discharge line with a pressure control valve together with the supply line A reverse osmosis membrane filter provided with a drain and a discharge port for discharging, and a purified water discharged from the discharge port side of the reverse osmosis membrane filter are collected through a supply line, and an upper limit sensor and a lower limit sensor for detecting a water level are provided therein. In the industrial water purification device consisting of a water storage tank having a water supply port in the lower portion, and a water level control unit electrically connected to the upper limit sensor and the lower limit sensor on the storage tank side to control the driving of the pump,
상기 역삼투 멤브레인필터의 배출구측 배출라인 상에 일시적으로 폐수를 배출시키기 위한 솔레노이드밸브가 설치되는 한편, 상기 수위제어부와 펌프에 전기적 으로 연결 설치되어 원수의 초기공급 및 상기 저장탱크측의 하한센서를 통한 수위감지에 따라 일정시간 동안 펌프와 솔레노이드밸브를 개방하는 타이머를 포함하여서 구성된 산업용 정수장치가 제공됨으로써 달성된다.A solenoid valve is installed on the outlet side discharge line of the reverse osmosis membrane filter to temporarily discharge the wastewater, and is electrically connected to the water level control unit and the pump to provide an initial supply of raw water and a lower limit sensor on the storage tank side. This is achieved by providing an industrial water purification device comprising a timer for opening a pump and a solenoid valve for a predetermined time depending on the water level detection.
이하, 본 발명을 첨부된 도면을 참조하여 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
첨부된 도 1은 본 발명인 산업용 정수장치를 개략적으로 도시한 구성도로서, 원수를 공급하기 위한 펌프(10)와, 상기 펌프를 통해 공급되는 원수를 공급받아 정화시키고, 정화된 물을 공급라인(P1)과 함께 압력조절밸브(21)가 구비된 배출라인(P2)으로 분리 배출하기 위한 배수구(20a)와 토출구(20b)가 마련된 역삼투 멤브레인필터(20)와, 상기 역삼투 멤브레인필터(20)의 토출구(20b)측으로부터 배출되는 정수를 공급라인(P1)을 통해 집수시키며, 내부에 수위를 감지하기 위한 상한센서(S1) 및 하한센서(S2)가 마련되고, 하부에 급수구(30a)가 구비된 저수탱크(30)와, 상기 저수탱크(30)측의 상한센서(S1) 및 하한센서(S2)에 전기적으로 연결 설치되어 펌프(10)의 구동을 제어하는 수위제어부(40)로 이루어진 산업용 정수장치에 있어서,1 is a schematic view showing the industrial water purifying apparatus of the present invention, the pump 10 for supplying raw water, and receiving and purifying the raw water supplied through the pump, the purified water supply line ( A reverse osmosis membrane filter 20 provided with a drain port 20a and a discharge port 20b for separating and discharging to a discharge line P2 having a pressure control valve 21 together with P1), and the reverse osmosis membrane filter 20 Water is discharged from the discharge port (20b) side of the collecting through the supply line (P1), the upper limit sensor (S1) and the lower limit sensor (S2) for detecting the water level is provided inside, the water supply port (30a) ) Is provided with a water storage tank 30, the water level control unit 40 is electrically connected to the upper limit sensor (S1) and the lower limit sensor (S2) on the storage tank 30 side to control the driving of the pump (10). In the industrial water purification device consisting of,
상기 역삼투 멤브레인필터(20)의 배출구(20a)측 배출라인(P2) 상에 일시적으로 폐수를 배출시키기 위한 솔레노이드밸브(50)가 설치되는 한편, 상기 수위제어부(40)와 펌프에 전기적으로 연결 설치되어 원수의 초기공급 및 상기 저장탱크(30)측의 하한센서(S2)를 통한 수위감지에 따라 일정시간 동안 펌프(10)와 솔레노이드 밸브(50)를 개방하는 타이머(60)를 포함하여서 구성된다.A solenoid valve 50 for temporarily discharging wastewater is installed on the discharge line P2 of the outlet 20a side of the reverse osmosis membrane filter 20, and is electrically connected to the water level controller 40 and the pump. It is installed and configured to include a timer 60 for opening the pump 10 and the solenoid valve 50 for a predetermined time in accordance with the initial supply of raw water and the water level detection through the lower limit sensor (S2) of the storage tank 30 side do.
초기 원수의 공급은 주어진 펌프(10)를 통해 소정의 압으로서 원수가 역삼투 멤브레인필터(20)를 통해 정수가 이루어진다.The initial feed of raw water is purified through the reverse osmosis membrane filter 20 at a predetermined pressure through a given pump 10.
이때 역삼투 멤브레인필터(20)를 통해 각종 유기, 무기질 등의 유해성분이 걸러진 상태의 폐수는 배출구(20a)측 배출라인(P2)을 통해 배출이 이루어진다.At this time, the wastewater in the state in which the harmful components such as organic, inorganic and the like filtered through the reverse osmosis membrane filter 20 is discharged through the discharge line (P2) side of the discharge port (20a).
상기와 같이 정수되는 물은 공급라인(P1)을 따라 저장탱크(30) 내에 집수되어 상부측 상한센서(S1)가 위치된 지점까지 정수된 물이 채워지며, 상기 상한센서(S1)를 통한 수위감지(풀(Full)상태)가 이루어지고, 이때 받은 신호를 받은 수위제어부(40)에서는 구동중인 펌프(10)의 가동을 중지시키게 된다.Water purified as described above is collected in the storage tank 30 along the supply line (P1) is filled with purified water to the point where the upper limit of the upper limit sensor (S1) is located, the water level through the upper limit sensor (S1) The sensing (full state) is made, and the water level control unit 40 receiving the received signal stops the operation of the pump 10 in operation.
한편, 저장탱크(30) 내에 저장된 물을 급수구(30a)를 통해서 사용함에 있어, 저장탱크(30) 내의 하한센서(S2)는 물의 수위를 감지하여 상기 펌프(10)의 구동을 재기시켜 원수의 공급이 다시 이루어지는 타입으로서 운영된다.On the other hand, in using the water stored in the storage tank 30 through the water supply port (30a), the lower limit sensor (S2) in the storage tank 30 detects the water level of the water to recover the drive of the pump 10 to recover the raw water It is operated as a type of supplying again.
상기 하한센서(S2)의 수위감지 신호를 받게 되어 다음 동작을 제어하게 하는 수위제어부(40)는 이와 전기적으로 연결 설치된 타이머를 5분 내지 10분 동안 한시적으로 동작시키고, 타이머(60)와 연결 설치된 상기 솔레노이드밸브(50)는 이때 주어진 시간만큼 개방되는 상태가 된다.The water level control unit 40 which receives the water level detection signal of the lower limit sensor S2 and controls the next operation operates the timer electrically connected thereto for 5 to 10 minutes, and is connected to the timer 60. The solenoid valve 50 is then opened for a given time.
상기 솔레노이드밸브(50)의 개방으로 하여금 이를 통해 배출되는 폐수의 양은 실질적으로 정수되는 양보다 많아 역삼투 멤브레인필터(20) 내부에 침전되는 각동 물질의 배출이 수월하며, 이에 따라 역삼투 멤브레인 필터가 가지는 정화효율을 극도로 떨어뜨리지 않는 범위에서 정화시켜 줄 수 있게 된다. Since the amount of wastewater discharged through the opening of the solenoid valve 50 is greater than the amount substantially purified, the discharge of the angular copper precipitated inside the reverse osmosis membrane filter 20 is facilitated. Eggplant will be able to purify in a range that does not reduce the purification efficiency extremely.
상기와 같은 동작에 있어, 상기 배출라인(P2) 상에 설치되어 있는 압력조절밸브는 감압밸브(21)의 역할로서 역삼투 멤브레인필터(20) 내에 걸리는 압력을 발생을 조절하여 필터의 내부손상을 방지시켜주는 역할을 담당한다.In the operation as described above, the pressure control valve installed on the discharge line (P2) serves to reduce the internal damage of the filter by controlling the generation of the pressure applied to the reverse osmosis membrane filter 20 as a role of the pressure reducing valve 21. It has a role to prevent.
상기와 같은 동작은 역삼투 멤브레인필터(20)측의 배출구(20a)의 배출라인(P2)을 통해 설정된 시간만큼 정수와 분리된 폐수를 신속히 배출시켜 줌으로써, 역삼투 멤브레인필터의 수명을 늘릴 수 있으면서 수질은 그만큼 향상시켜 양질의 물을 제공할 수 있게된다.The operation as described above can quickly discharge the waste water separated from the purified water by a set time through the discharge line (P2) of the outlet 20a of the reverse osmosis membrane filter 20, while increasing the life of the reverse osmosis membrane filter The water quality is improved so much that it can provide high quality water.
따라서 바람직하게 유해성분이 제거된 정수의 사용을 요하는 산업용 혹은 공업용의 정화수를 얻을 수 있게 된다.Accordingly, it is possible to obtain industrial or industrial purified water which preferably requires the use of purified water from which noxious components have been removed.
결국, 상기와 같은 폐수의 배출과 더불어 정수된 물을 저장하는 방식은 반복적으로 이루어져 역삼투 멤브레인필터를 깨끗이 청소시켜 필터의 교체시간을 대폭 늘릴 수 있다는 이점과 산업용 정수기를 운영함에 따른 관리가 간편해지는 이점이 있다.As a result, the method of storing the purified water together with the discharge of the waste water as described above is made repeatedly, so that the reverse osmosis membrane filter can be cleaned and the replacement time of the filter can be greatly increased, and the management of the industrial water purifier is simplified. There is an advantage.
이상에서와 같이 본 발명은 원수를 공급받아 이를 정화시켜 사용수로서 사용하는 산업용 정수장치에 있어서, 역삼투 멤브레인필터측으로 원수의 초기공급시 또는 정화된 정수를 저장하는 저장탱크측의 하부에 위치되어 물의 보충상태를 알려주는 하한센서의 감지신호를 전달받아 주어진 타이머의 작동으로 역삼투 멤브레인필어틔 배출라인측 솔레노이드밸브를 일정시간 개도시켜 역삼투 멤브레인 내에서 분리되는 폐수를 용이하게 배출시켜 줌으로써 필터의 정화효율을 높이고, 필터의 수 명을 대폭 연장시켜 잦은 교체가 요구하지 않아도 되는 효과가 있다.As described above, the present invention is an industrial water purification device for receiving raw water and purifying it for use as used water, which is located at the lower side of the storage tank side for initial supply of raw water to the reverse osmosis membrane filter side or for storing purified water. By receiving the detection signal of the lower limit sensor indicating the water replenishment status, the solenoid valve on the reverse osmosis membrane filter 틔 discharge line is opened for a certain period of time with the operation of a given timer to easily discharge the wastewater separated from the reverse osmosis membrane. Increasing the purification efficiency, greatly extending the life of the filter has the effect that does not require frequent replacement.

Claims (1)

  1. 원수를 공급하기 위한 펌프(10)와, 상기 펌프를 통해 공급되는 원수를 공급받아 정화시키고, 정화된 물을 공급라인(P1)과 함께 압력조절밸브(21)가 구비된 배출라인(P2)으로 분리 배출하기 위한 배수구(20a)와 토출구(20b)가 마련된 역삼투 멤브레인필터(20)와, 상기 역삼투 멤브레인필터(20)의 토출구(20b)측으로부터 배출되는 정수를 공급라인(P1)을 통해 집수시키며, 내부에 수위를 감지하기 위한 상한센서(S1) 및 하한센서(S2)가 마련되고, 하부에 급수구(30a)가 구비된 저수탱크(30)와, 상기 저수탱크(30)측의 상한센서(S1) 및 하한센서(S2)에 전기적으로 연결 설치되어 펌프(10)의 구동을 제어하는 수위제어부(40)로 이루어진 산업용 정수장치에 있어서,The pump 10 for supplying the raw water and the raw water supplied through the pump to purify, the purified water to the discharge line (P2) is provided with a pressure control valve 21 together with the supply line (P1). Reverse osmosis membrane filter 20 provided with drain port 20a and discharge port 20b for separating and discharging, and purified water discharged from discharge port 20b side of reverse osmosis membrane filter 20 through supply line P1. Collecting water, the upper limit sensor (S1) and the lower limit sensor (S2) for detecting the water level is provided inside, the water storage tank 30 is provided with a water supply port (30a) at the bottom, and the water storage tank (30) side In the industrial water purification device consisting of a water level control unit 40 that is electrically connected to the upper limit sensor (S1) and the lower limit sensor (S2) to control the driving of the pump 10,
    상기 역삼투 멤브레인필터(20)의 배출구(20a)측 배출라인(P2) 상에 일시적으로 폐수를 배출시키기 위한 솔레노이드밸브(50)가 설치되는 한편, 상기 수위제어부(40)와 펌프에 전기적으로 연결 설치되어 원수의 초기공급 및 상기 저장탱크(30)측의 하한센서(S2)를 통한 수위감지에 따라 일정시간 동안 펌프(10)와 솔레노이드밸브(50)를 개방하는 타이머(60)를 포함하여서 구성된 것을 특징으로 하는 산업용 정수장치.A solenoid valve 50 for temporarily discharging wastewater is installed on the discharge line P2 of the outlet 20a side of the reverse osmosis membrane filter 20, and is electrically connected to the water level controller 40 and the pump. Is installed and configured to include a timer 60 for opening the pump 10 and the solenoid valve 50 for a predetermined time in accordance with the initial supply of raw water and the water level detection through the lower limit sensor (S2) of the storage tank 30 side Industrial water purifier, characterized in that.
KR1020070023079A 2007-03-08 2007-03-08 Industrial Water Purifier KR100876548B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103359845A (en) * 2013-08-08 2013-10-23 刘丽 Water purification system without discharge of waste water
KR20150137202A (en) 2014-05-28 2015-12-09 주식회사 에스이씨 Method for cleaning membrane

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* Cited by examiner, † Cited by third party
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CN104591421B (en) * 2015-01-30 2016-07-06 艾欧史密斯(中国)热水器有限公司 The cistern assembly of water purifier and water purifier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103359845A (en) * 2013-08-08 2013-10-23 刘丽 Water purification system without discharge of waste water
KR20150137202A (en) 2014-05-28 2015-12-09 주식회사 에스이씨 Method for cleaning membrane

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