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KR100948270B1 - Ship's Rainwater Treatment System - Google Patents

Ship's Rainwater Treatment System Download PDF

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KR100948270B1
KR100948270B1 KR1020070126455A KR20070126455A KR100948270B1 KR 100948270 B1 KR100948270 B1 KR 100948270B1 KR 1020070126455 A KR1020070126455 A KR 1020070126455A KR 20070126455 A KR20070126455 A KR 20070126455A KR 100948270 B1 KR100948270 B1 KR 100948270B1
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rainwater
oil
ship
treatment system
oil separator
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KR20090059555A (en
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이성준
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삼성중공업 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
    • 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
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001—Runoff or storm water
    • 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
    • C02F2201/001—Build in apparatus for autonomous on board water supply and wastewater treatment (e.g. for aircrafts, cruiseships, oil drilling platforms, railway trains, space stations)

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Removal Of Floating Material (AREA)

Abstract

본 발명은 선박의 빗물 처리 시스템에 관한 것으로서, 선박의 빗물 처리 시스템에 있어서, 선박에 내린 빗물을 집수관을 통해 집수하여 저장하는 집수 탱크와, 집수 탱크로부터 공급되는 빗물로부터 오일을 제거함으로써 오일이 제거된 빗물이 외부로 배출되도록 하는 오일 분리기를 포함한다. 따라서, 본 발명은 선박에 내린 빗물을 집수하여 오일을 제거한 다음 외부로 배출시킴으로써 해양 오염을 방지하고, 집수된 빗물에 오일이 함유되었는지를 모니터링하여 오일이 함유된 경우에만 오일 제거가 이루어지도록 함으로써 오일 분리기의 불필요한 사용을 줄여서 오일 분리기의 유지 및 보수 비용을 절감하도록 하는 효과를 가지고 있다.The present invention relates to a rainwater treatment system of a ship, in the rainwater treatment system of the vessel, the oil is collected by removing the oil from the water collecting tank for collecting and storing rainwater discharged on the vessel through the collecting pipe, and the rainwater supplied from the collecting tank It includes an oil separator to allow the removed rain water to be discharged to the outside. Therefore, the present invention collects the rainwater on the ship to remove the oil and then discharge it to the outside to prevent marine pollution, by monitoring whether the oil contained in the collected rainwater so that the oil is removed only when the oil is contained By reducing the unnecessary use of the separator has the effect of reducing the cost of maintenance and repair of the oil separator.

집수 탱크, 오일 분리기, 오일 감지 센서, 제어부, 수위 감지 센서 Collection tank, oil separator, oil detection sensor, control unit, water level detection sensor

Description

선박의 빗물 처리 시스템{Rain water treatment system of a vessel}Rain water treatment system of a vessel

본 발명은 선박에 내린 빗물을 집수하여 오일을 제거한 다음 외부로 배출시킴으로써 해양 오염을 방지하기 위한 선박의 빗물 처리 시스템에 관한 것이다.The present invention relates to a rainwater treatment system of a ship for preventing marine pollution by collecting the rainwater dropped on the vessel to remove the oil and then discharge it to the outside.

일반적으로, 선박은 사용목적에 따라 상선, 군함, 어선 및 특수 작업선으로 크게 구분할 수 있다. 상선은 여객 또는 화물을 운반하여 운임 수입을 얻는 것을 목적으로 하는 선박을 말하며, 이것을 다시 화물선, 화객선, 여객선으로 구분한다.In general, ships can be broadly classified into merchant ships, warships, fishing vessels and special working vessels according to their purpose of use. Merchant ships are vessels intended to carry passengers or cargo to earn freight revenue, which are further divided into cargo ships, passenger ships and passenger ships.

이와 같은, 선박(1)은 도 1에 도시된 바와 같이, 강우시 데크(2)와 데크(2) 상의 구조물(3,4)에 내리는 빗물이 내부로 침투함으로써 선체의 부식이나 장비 등의 손상을 초래하지 않도록 데크(2) 상의 빗물을 집수하여 외부로 배출시키기 위한 집수관(5)이 마련된다.As shown in FIG. 1, the ship 1 has a rainwater falling on the deck 2 and the structures 3 and 4 on the deck 2 as it penetrates into the ship, and thus damages to corrosion of the hull, equipment, and the like. A collecting pipe 5 is provided for collecting rainwater on the deck 2 and discharging it to the outside so as not to cause the water.

따라서, 강우시 데크(2)나 데크(2) 상의 구조물(3,4)로 내리는 빗물은 집수관(5)을 통해서 신속하게 외부로 배출됨으로써 빗물의 내부 침투로 인한 피해를 방지하게 되며, 이와 같은 선박의 빗물 배출은 선박이 대형화되어 가는 추세에 따라 배출되는 빗물의 양이 많아짐에 따라 그 배출 방식 및 구조에 있어서 중요성이 점점 커지고 있다.Therefore, the rainwater falling to the deck (2) or the structure (3,4) on the deck (2) during rain is quickly discharged to the outside through the collecting pipe (5) to prevent damage due to the internal penetration of the rainwater, and Rainwater discharge of the same ship is becoming more important in the discharge method and structure as the amount of rainwater discharged in accordance with the trend that the vessel is enlarged.

상기한 바와 같은, 종래의 선박에서 데크 상에 많은 파이프, 밸브, 기기 등이 설치되는 경우 집수관을 통하여 빗물을 집수하여 외부로 그대로 배출하게 되면, 이러한 파이프, 밸브, 기기 등에 잔존하는 오일 성분이 함께 해수로 배출됨으로써 해양 오염을 야기시키는 문제점을 가지고 있었다.As described above, when a large number of pipes, valves, equipment, etc. are installed on the deck in the conventional vessel, when the rainwater is collected through the water collecting pipe and discharged to the outside as it is, oil components remaining in the pipes, valves, equipment, etc. Together with the discharge into the sea water had a problem causing marine pollution.

이와 같이, 선박에서 빗물과 함께 오일을 배출시키는 것은 전 세계적으로 환경에 대한 관심이 높아지면서 선박에서도 환경 오염을 줄이려고 노력하는 것에 반할 뿐만 아니라 선박에 의한 해양 및 대기 오염 방지를 위한 환경 규제가 강화되는 추세에 적응하지 못하는 결과를 초래하게 된다. As such, the discharge of oil along with rainwater from ships is not only against efforts to reduce environmental pollution on ships, but also due to growing environmental concerns around the world, while also increasing environmental regulations to prevent marine and air pollution by ships. This results in a failure to adapt to the trend.

본 발명은 선박에 내린 빗물로부터 오일을 분리하여 외부로 배출시킴으로써 해양 오염을 방지하도록 한다.The present invention is to prevent marine pollution by separating the oil from the rainwater falling on the ship and discharged to the outside.

본 발명에 따른 선박의 빗물 처리 시스템은 선박의 빗물 처리 시스템에 있어서, 선박에 내린 빗물을 배출관을 통해 집수하여 저장하는 집수 탱크와, 집수 탱크로부터 공급되는 빗물로부터 오일을 제거함으로써 오일이 제거된 빗물이 외부로 배출되도록 하는 오일 분리기와, 집수 탱크에서 오일 분리기로 이동하는 빗물의 경로 상에 설치되며, 통과하는 빗물에 함유된 오일을 감지하여 감지 신호를 출력하는 오일 감지 센서와, 오일 감지 센서로부터 출력되는 감지 신호에 따라 오일 분리기에 빗물을 공급하거나 오일 분리기를 우회하여 빗물을 배출시키는 제어부를 포함한다.In the rainwater treatment system of a ship according to the present invention, in the rainwater treatment system of the ship, the rainwater in which the oil is removed by removing the oil from the rainwater from the catchment tank for collecting and storing the rainwater dropped on the vessel through the discharge pipe; An oil separator for discharging to the outside, an oil sensor installed on a path of rainwater moving from the collection tank to the oil separator, and an oil sensor for detecting oil contained in the rainwater passing through and outputting a detection signal; And a control unit configured to supply rainwater to the oil separator or discharge the rainwater by bypassing the oil separator according to the output detection signal.

본 발명은 선박에 내린 빗물을 집수하여 오일을 제거한 다음 외부로 배출시킴으로써 해양 오염을 방지하고, 집수된 빗물에 오일이 함유되었는지를 모니터링하 여 오일이 함유된 경우에만 오일 제거가 이루어지도록 함으로써 오일 분리기의 불필요한 사용을 줄여서 오일 분리기의 유지 및 보수 비용을 절감하도록 하는 효과를 가지고 있다.The present invention collects rainwater on the ship to remove the oil and then discharge it to the outside to prevent marine pollution, and to monitor the oil contained in the collected rainwater so that the oil is removed only when the oil is contained oil separator It has the effect of reducing the cost of maintenance and repair of the oil separator by reducing unnecessary use of the oil separator.

본 발명은, 선박에 내린 빗물을 집수관을 통해 집수 탱크에 저장하고, 오일 제거기에 의해 집수 탱크로부터 공급되는 빗물로부터 오일을 제거하여 외부로 배출시킴으로써 해양 오염을 방지한다.The present invention prevents marine pollution by storing rainwater on the vessel in a collecting tank through a collecting pipe and removing oil from the rainwater supplied from the collecting tank by an oil remover and discharging it to the outside.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하기로 한다. 아울러 본 발명을 설명함에 있어서, 관련된 공지 구성 또는 기능에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

도 2는 본 발명에 따른 선박의 빗물 처리 시스템을 도시한 구성도이다. 도시된 바와 같이, 본 발명에 따른 선박의 빗물 처리 시스템(100)은 선박에 내린 빗물을 저장하는 집수 탱크(110)와, 집수 탱크(110)로부터 공급되는 빗물로부터 오일을 제거하는 오일 분리기(120)를 포함한다.Figure 2 is a block diagram showing a rainwater treatment system of a ship according to the present invention. As shown, the rainwater treatment system 100 of the ship according to the present invention is a water collecting tank 110 for storing rainwater rained on the vessel, and an oil separator 120 for removing oil from the rainwater supplied from the water collecting tank 110 ).

집수 탱크(110)는 선박(1)의 데크(2) 또는 데크(2) 상의 구조물(3,4) 등에 내린 빗물을 집수하는 집수관(5)에 연결됨으로써 집수관(5)을 통해서 빗물을 집수하여 저장한다. 한편, 집수 탱크(110)는 선박(1)의 에프터 피크 탱크(after peak tank)가 사용될 수 있다.The water collecting tank 110 is connected to the water collecting pipe 5 for collecting rainwater that falls on the deck 2 of the ship 1 or the structures 3 and 4 on the deck 2, thereby collecting the rainwater through the water collecting pipe 5. Collect and store. On the other hand, the collecting tank 110 may be used after the tank (after peak tank) of the vessel (1).

오일 분리기(120)는 집수 탱크(110)로부터 공급 라인(111)을 통해서 공급되는 빗물로부터 오일을 제거하고, 배출 라인(121)을 통해서 오일이 제거된 빗물이 선박(1) 외부로 배출되도록 한다.The oil separator 120 removes oil from rainwater supplied through the supply line 111 from the collection tank 110, and allows the rainwater from which the oil is removed through the discharge line 121 is discharged to the outside of the vessel 1. .

한편, 오일 분리기(120)의 불필요한 가동을 방지하기 위해 오일 감지 센서(130) 및 제어부(140)를 더 포함할 수 있다.On the other hand, in order to prevent unnecessary operation of the oil separator 120 may further include an oil detection sensor 130 and the controller 140.

오일 감지 센서(130)는 집수 탱크(110)에서 오일 분리기(120)로 이동하는 빗물의 경로, 즉 공급 라인(111) 상에 설치되며, 공급 라인(111)을 통과하는 빗물에 함유된 오일을 감지하여 제어부(140)로 감지 신호를 출력한다.The oil detection sensor 130 is installed on the path of rainwater moving from the collection tank 110 to the oil separator 120, that is, on the supply line 111, and detects oil contained in the rainwater passing through the supply line 111. It detects and outputs a detection signal to the controller 140.

제어부(140)는 오일 감지 센서(130)로부터 출력되는 감지 신호를 수신받음과 아울러 오일 분리기(120)를 제어하고, 오일 감지 센서(130)의 감지 신호에 따라 오일 분리기(120)에 빗물을 공급하거나 오일 분리기(120)를 우회하여 빗물을 배출시키도록 한다.The controller 140 receives the detection signal output from the oil detection sensor 130 and controls the oil separator 120, and supplies rainwater to the oil separator 120 according to the detection signal of the oil detection sensor 130. Or bypass the oil separator 120 to drain the rain water.

제어부(140)는 오일 분리기(120)로의 빗물 공급 및 우회를 제어하기 위해서 공급 라인(111) 상에서 오일 분리기(120)의 전단에 우회 라인(112)을 연결하고, 우회 라인(112)과 공급 라인(111)의 연결 부분에 3 방향 밸브(141)를 설치함으로써 3 방향 밸브(141)의 제어에 의해 집수 탱크(110)로부터 공급되는 빗물이 오일 분리기(120) 측으로 공급되도록 하거나 오일 분리기(120)를 우회하여 우회 라인(112)을 따라서 외부로 배출되도록 할 수 있다.The control unit 140 connects the bypass line 112 to the front end of the oil separator 120 on the supply line 111 to control rain water supply and bypass to the oil separator 120, and the bypass line 112 and the supply line. By installing the three-way valve 141 in the connection portion of the 111, the rain water supplied from the water collecting tank 110 by the control of the three-way valve 141 is supplied to the oil separator 120 side or the oil separator 120 By bypassing it can be discharged to the outside along the bypass line (112).

또한, 집수 탱크(110)에 빗물이 채워진 정도에 따라 빗물의 배출 및 오일 제거를 실시하기 위하여 수위 감지 센서(150)를 더 포함할 수 있다.In addition, the water collection tank 110 may further include a water level sensor 150 in order to discharge the rainwater and remove the oil depending on the degree of rainwater is filled.

수위 감지 센서(150)는 집수 탱크(110)에 설치되어 수위를 감지하여 제어부(140)로 감지 신호를 출력한다.The water level detection sensor 150 is installed in the collection tank 110 to detect the water level and output a detection signal to the control unit 140.

제어부(140)는 수위 감지 센서(150)로부터 출력되는 감지 신호에 따라 공급 라인(111) 상에 설치되는 제어 밸브(142)의 개폐에 의해 집수 탱크(110)로부터 빗물의 배출을 제어함으로써 집수 탱크(110)에 저장된 빗물이 정해진 수위에 도달시 빗물이 배출되도록 하고, 이로 인해 불필요한 오일 분리기(120)를 비롯한 시스템의 사용을 줄이도록 한다.The control unit 140 controls the discharge of the rainwater from the collecting tank 110 by opening and closing the control valve 142 installed on the supply line 111 according to a detection signal output from the water level detecting sensor 150. Rainwater is discharged when the rainwater stored in the 110 reaches a predetermined level, thereby reducing the use of the system, including the unnecessary oil separator (120).

이와 같은 구성을 가지는 본 발명에 따른 선박의 빗물 처리 시스템의 작동을 설명하면 다음과 같다.Referring to the operation of the rainwater treatment system of the ship according to the present invention having such a configuration as follows.

선박(1)의 데크(2) 및 데크(2) 상의 구조물(3,4) 등에 빗물이 내리면 집수관(5)을 통해서 집수 탱크(110)에 빗물이 저장되고, 집수 탱크(110) 내의 수위가 일정 수위에 도달하면, 이를 감지하는 수위 감지 센서(150)의 감지 신호를 제어부(140)가 수신받아 제어 밸브(142)를 개방시킴으로써 집수 탱크(110)로부터 오일 분리기(120) 측으로 빗물이 이동하도록 한다.When rainwater falls on the deck 2 of the ship 1 and the structures 3 and 4 on the deck 2, the rainwater is stored in the water collecting tank 110 through the water collecting pipe 5, and the water level in the water collecting tank 110. Reaches a certain level, the rainwater is moved from the collection tank 110 to the oil separator 120 by opening the control valve 142 receives the detection signal of the water level detection sensor 150 for detecting it. Do it.

이 때, 오일 감지 센서(130)는 공급 라인(111)을 통과하는 빗물에 오일이 함유되었는지를 감지하여 제어부(140)로 감지 신호를 출력하면, 제어부(140)는 빗물에 오일이 함유되었다고 판단되는 경우 3 방향 밸브(141)를 작동시켜서 빗물이 오일 분리기(120)로 공급되도록 함으로써 오일이 제거된 빗물이 배출 라인(121)을 통해서 선박(1)의 외부로 배출되도록 한다.At this time, when the oil detection sensor 130 detects whether oil is contained in the rainwater passing through the supply line 111 and outputs a detection signal to the controller 140, the controller 140 determines that oil is contained in the rainwater. In this case, the rainwater is supplied to the oil separator 120 by operating the three-way valve 141 so that the rainwater from which the oil is removed is discharged to the outside of the ship 1 through the discharge line 121.

또한, 제어부(140)는 오일 감지 센서(130)의 감지 신호로부터 빗물에 오일이 함유되어 있지 않다고 판단되면, 3 방향 밸브(141)를 작동시켜서 빗물이 우회 라인(112) 및 배출 라인(121)을 따라서 선박 외부로 배출되도록 함으로써 오일이 함유되지 않은 빗물은 오일 분리기(120)를 우회하도록 한다.In addition, when it is determined that the rain water does not contain oil from the detection signal of the oil detection sensor 130, the controller 140 operates the three-way valve 141 to allow the rain water to bypass the line 112 and the discharge line 121. Accordingly, the rainwater without oil is bypassed to the oil separator 120 by being discharged to the outside of the ship.

이상과 같은 본 발명의 바람직한 실시예에 따르면, 선박에 내린 빗물을 집수하여 오일을 제거한 다음 외부로 배출시킴으로써 해양 오염을 방지하고, 집수된 빗물에 오일이 함유되었는지를 모니터링하여 오일이 함유된 경우에만 오일 제거가 이루어지도록 함으로써 오일 분리기의 불필요한 사용을 줄여서 오일 분리기의 유지 및 보수 비용을 절감하도록 하는 효과를 가지고 있다.According to a preferred embodiment of the present invention as described above, by collecting the rainwater dropped on the ship to remove the oil and then discharged to the outside to prevent marine pollution, and to monitor whether the oil is contained in the collected rainwater only when the oil is contained By removing oil, it is possible to reduce unnecessary use of the oil separator, thereby reducing the cost of maintenance and repair of the oil separator.

이상에서와 같이, 본 발명의 상세한 설명에서 구체적인 실시예에 관해 설명하였으나, 본 발명의 기술이 당업자에 의하여 용이하게 변형 실시될 가능성이 자명하며, 이러한 변형된 실시예들은 본 발명의 특허청구범위에 기재된 기술사상에 포함된다할 것이다.As described above, specific embodiments have been described in the detailed description of the present invention, but it is obvious that the technology of the present invention can be easily modified by those skilled in the art, and such modified embodiments are defined in the claims of the present invention. It will be included in the technical spirit described.

도 1은 종래의 기술에 따른 선박의 빗물 배출 경로를 도시한 개략도이고,1 is a schematic diagram showing a rainwater discharge path of the ship according to the prior art,

도 2는 본 발명에 따른 선박의 빗물 처리 시스템을 도시한 구성도이다.Figure 2 is a block diagram showing a rainwater treatment system of a ship according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1 : 선박 2 : 데크1: ship 2: deck

3, 4 : 구조물 5 : 집수관3, 4: Structure 5: Water pipe

110 : 집수 탱크 111 : 공급 라인110: collecting tank 111: supply line

112 : 우회 라인 120 : 오일 분리기112: bypass line 120: oil separator

121 : 배출 라인 130 : 오일 감지 센서121: discharge line 130: oil detection sensor

140 : 제어부 141 : 3 방향 밸브140: control unit 141: three-way valve

142 : 제어 밸브 150 : 수위 감지 센서142: control valve 150: water level sensor

Claims (3)

선박의 빗물 처리 시스템에 있어서,In the rainwater treatment system of a ship, 선박에 내린 빗물을 집수관을 통해 집수하여 저장하는 집수 탱크와,A collecting tank for collecting and storing rainwater dropped on the vessel through a collecting pipe; 상기 집수 탱크로부터 공급되는 빗물로부터 오일을 제거함으로써 오일이 제거된 빗물이 외부로 배출되도록 하는 오일 분리기와,An oil separator for removing the oil from the rainwater supplied from the collection tank so that the rainwater from which the oil is removed is discharged to the outside; 상기 집수 탱크에서 상기 오일 분리기로 이동하는 빗물의 경로 상에 설치되며, 통과하는 빗물에 함유된 오일을 감지하여 감지 신호를 출력하는 오일 감지 센서와,An oil detection sensor installed on a path of rainwater moving from the water collection tank to the oil separator, and detecting an oil contained in the rainwater passing through and outputting a detection signal; 상기 오일 감지 센서로부터 출력되는 감지 신호에 따라 상기 오일 분리기에 빗물을 공급하거나 상기 오일 분리기를 우회하여 빗물을 배출시키는 제어부A control unit for supplying rainwater to the oil separator or discharging rainwater by bypassing the oil separator according to a detection signal output from the oil detecting sensor 를 포함하는 선박의 빗물 처리 시스템.Rainwater treatment system of the ship comprising a. 삭제delete 제 1 항에 있어서,The method of claim 1, 상기 집수 탱크에 설치되어 수위를 감지하여 감지 신호로 출력하는 수위 감지 센서를 더 포함하고,It is further provided with a water level detection sensor installed in the collecting tank to detect the water level and output as a detection signal, 상기 제어부는 상기 수위 감지 센서로부터 출력되는 감지 신호에 따라 상기 집수 탱크로부터 빗물의 배출을 제어하는 것The control unit controls the discharge of the rain water from the collection tank in accordance with the detection signal output from the water level detection sensor 을 특징으로 하는 선박의 빗물 처리 시스템.Rainwater treatment system of the ship, characterized in that.
KR1020070126455A 2007-12-06 2007-12-06 Ship's Rainwater Treatment System Expired - Fee Related KR100948270B1 (en)

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KR102227887B1 (en) * 2014-10-02 2021-03-29 대우조선해양 주식회사 Drainage of Helicopter Deck and Drain Method Thereof

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