KR20090112296A - Cooling apparatus using seawater in a vessel - Google Patents

Cooling apparatus using seawater in a vessel Download PDF

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Publication number
KR20090112296A
KR20090112296A KR1020080038100A KR20080038100A KR20090112296A KR 20090112296 A KR20090112296 A KR 20090112296A KR 1020080038100 A KR1020080038100 A KR 1020080038100A KR 20080038100 A KR20080038100 A KR 20080038100A KR 20090112296 A KR20090112296 A KR 20090112296A
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South Korea
Prior art keywords
cooling
seawater
cooling water
cooler
pump
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KR1020080038100A
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Korean (ko)
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노영길
신동원
안병삼
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삼성중공업 주식회사
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Priority to KR1020080038100A priority Critical patent/KR20090112296A/en
Publication of KR20090112296A publication Critical patent/KR20090112296A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/12—Heating; Cooling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)

Abstract

PURPOSE: A cooling apparatus of a ship using seawater is provided to improve energy efficiency of the cooler and cooling efficiency of cooling objects. CONSTITUTION: A cooling apparatus of a ship using seawater comprises a seawater pump(111), a cooler(110), a cooling-water circulation line(120), a valve unit(130), an opening/shutting sensing unit(140), and a controller(150). The seawater pump supplies seawater through a seawater circulation line of a seawater tank(112). The cooler uses the seawater as coolant. The cooling-water circulation line provides a path to supply cooling water from the cooler to cooling objects and includes a bypass line(122). The valve unit deflects the flow of cooling water to the bypass line. The opening/shutting sensing unit detects the opening degree of the valve unit and outputs corresponding signal. The controller receives sensing signals from the opening/shutting sensing unit and controls the seawater pump according to the sensing signals.

Description

해수를 이용하는 선박의 냉각장치{COOLING APPARATUS USING SEAWATER IN A VESSEL}COOLING APPARATUS USING SEAWATER IN A VESSEL}

본 발명은 쿨러에 의해 냉각되어 엔진이나 발전기 등과 같은 냉각 대상물에 공급되는 냉각수의 양에 따라 쿨러의 냉각 능력을 가변시킴으로써 냉각 대상물의 냉각 효율을 증대시키는 해수를 이용하는 선박의 냉각장치에 관한 것이다.The present invention relates to a ship cooling apparatus using seawater that increases the cooling efficiency of a cooling target by varying the cooling capacity of the cooler according to the amount of cooling water cooled by the cooler and supplied to the cooling target such as an engine or a generator.

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 선박은 선체에 해수가 유입되어 저장되는 해수 탱크가 마련되며, 해수 탱크에 저장된 해수를 엔진이나 발전기 등의 발열 장치를 냉각시키는데 사용하며, 특히, 해수를 냉매로서 사용할 수 있는 저온의 해역이나 극한 지역을 항해시 이러한 해수를 이용한 냉각장치의 활용이 더욱 중요하다.Such a vessel is provided with a seawater tank into which the seawater flows into the hull, and the seawater stored in the seawater tank is used to cool a heat generating device such as an engine or a generator. The use of such seawater cooling systems is even more important when sailing in extreme areas.

종래의 해수를 이용하는 선박의 냉각장치를 첨부된 도면을 참조하여 설명하면 다음과 같다.Referring to the accompanying drawings, a conventional cooling device for a vessel using sea water is as follows.

도 1은 종래의 기술에 따른 해수를 이용하는 선박의 냉각장치를 도시한 구성 도이다. 도시된 바와 같이, 종래의 기술에 따른 해수를 이용하는 선박의 냉각장치(10)는 해수가 유입되는 해수탱크(11)와, 해수탱크(11)에 해수가 순환 공급되기 위한 경로를 제공하는 해수순환라인(12)과, 해수순환라인(12)에 설치되어 해수가 순환되도록 펌핑하는 해수펌프(13)와, 해수순환라인(12)에 설치되어 순환 공급되는 해수를 냉매로 사용하는 쿨러(14)와, 쿨러(14)로부터 열교환을 마친 냉각수가 냉각수펌프(15a)에 의해 엔진이나 발전기 등의 냉각 대상물(1)로 순환 공급되기 위한 경로를 제공하는 냉각수순환라인(15)을 포함한다.1 is a block diagram showing a cooling device of a vessel using sea water according to the prior art. As shown, the cooling device 10 of the vessel using the sea water according to the prior art seawater tank 11 and the seawater circulation to provide a path for the circulation of seawater to the seawater tank 11, the seawater tank 11 The seawater pump 13 installed in the line 12, the seawater circulation line 12 to pump the seawater circulated, and the cooler 14 using the seawater provided in the seawater circulation line 12 for circulation, is used as a refrigerant. And a cooling water circulation line 15 which provides a path for circulating the cooling water after the heat exchange from the cooler 14 to the cooling target 1 such as an engine or a generator by the cooling water pump 15a.

이와 같은 종래의 해수를 이용하는 선박의 냉각장치(10)는 해수탱크(11) 하부에 마련된 유입구(11a)를 통해서 해수가 유입되고, 해수탱크(11)로 유입된 해수가 해수펌프(13)의 펌핑에 의해 쿨러(14)로 순환 공급되며, 냉각수펌프(15a)의 펌핑에 의해 냉각 대상물(1)을 거쳐서 냉각수순환라인(15)을 따라서 쿨러(14)로 순환 공급되는 냉각수가 해수와의 열교환에 의해 냉각되며, 이로 인해 냉각수가 냉각 대상물(1)을 냉각시키도록 한다.The cooling device 10 of the vessel using the conventional sea water is introduced into the seawater through the inlet 11a provided in the seawater tank 11, the seawater introduced into the seawater tank 11 of the seawater pump 13 The cooling water circulated and supplied to the cooler 14 by pumping, and the cooling water circulated and supplied to the cooler 14 along the cooling water circulation line 15 through the cooling object 1 by the cooling water pump 15a by the pumping of the heat exchange with seawater. By the cooling water, thereby allowing the cooling water to cool the cooling target object (1).

상기한 바와 같이, 종래의 기술에 따른 해수를 이용하는 선박의 냉각장치는 쿨러에 냉매로서 해수를 공급하는 해수펌프가 냉각 대상물로 공급되는 냉각수의 양에 무관하게 정해진 속도로만 구동하게 됨으로써 쿨러가 냉각수를 과잉 냉각시키거나 부족하게 냉각시키게 되며, 이로 인해 쿨러의 에너지 효율을 저하시킬 뿐만 아니라 엔진이나 발전기 등과 같이 냉각이 필요한 대상물의 냉각 효율이 저하되는 문제점을 가지고 있었다.As described above, in a ship cooling apparatus using a seawater according to the prior art, the seawater pump for supplying seawater as a coolant to the cooler is driven only at a predetermined speed irrespective of the amount of cooling water supplied to the cooling target, thereby allowing the cooler to cool the water. Over-cooling or insufficient cooling, thereby lowering the energy efficiency of the cooler, as well as the cooling efficiency of objects such as engines or generators need to be reduced.

본 발명은 상기한 문제점들을 해결하기 위하여 안출된 것으로서, 냉각 대상물로 공급되는 냉각수의 양에 따라 쿨러에 냉매로 사용되는 해수를 공급하는 해수펌프의 속도를 가변시킴으로써 쿨러의 에너지 효율과 냉각 대상물의 냉각 효율을 증대시키도록 한다.The present invention has been made to solve the above problems, by varying the speed of the seawater pump for supplying the seawater used as the refrigerant to the cooler according to the amount of cooling water supplied to the cooling object, the energy efficiency of the cooler and the cooling of the cooling object. Increase the efficiency.

본 발명에 따른 해수를 이용하는 선박의 냉각장치는, 선박에 설치되며, 해수를 이용하는 냉각장치에 있어서, 해수가 유입되는 해수탱크에 해수순환라인을 따라 해수를 순환 공급시키며, 속도가 가변되는 해수펌프와, 해수펌프에 의해 순환 공급되는 해수를 냉매로 사용하는 쿨러와, 쿨러로부터 열교환을 마친 냉각수가 냉각수펌프에 의해 냉각 대상물로 순환 공급되기 위한 경로를 제공하며, 냉각 대상물을 바이패스하는 바이패스라인을 가지는 냉각수순환라인과, 냉각수순환라인을 따라 순환되는 냉각수의 흐름을 바이패스라인으로 전환시키는 밸브수단과, 밸브수단의 개 폐 정도를 감지하여 감지신호로 출력하는 개폐감지수단과, 개폐감지수단의 감지신호를 수신받아 밸브수단이 쿨러에서 냉각 대상물로 냉각수를 공급시키도록 개방되는 정도가 설정된 개방량 이상이면 해수펌프를 고속으로 동작시키고, 설정된 개방량 미만이면 해수펌프를 저속으로 동작시키도록 해수펌프의 속도를 제어하는 제어부를 포함한다.The cooling apparatus of a ship using sea water according to the present invention is installed in the vessel, the cooling device using sea water, the sea water pump to circulate the sea water along the sea water circulation line to the sea water tank inflow of the sea water, the speed is variable And a cooler using the sea water circulated and supplied by the sea water pump as a refrigerant, and a bypass line for supplying the cooling water circulated from the cooler to the cooling object by the cooling water pump, and bypassing the cooling object. Cooling water circulation line having a; and valve means for switching the flow of the cooling water circulated along the cooling water circulation line to the bypass line, opening and closing detection means for detecting the opening and closing of the valve means and outputs as a detection signal, opening and closing detection means The valve means is opened to supply the coolant from the cooler to the object to be cooled by receiving a detection signal from the cooler. It includes a control unit for controlling the speed of the seawater pump to operate the seawater pump at a high speed if the predetermined opening amount or more, and to operate the seawater pump at a low speed if less than the predetermined opening amount.

본 발명은 엔진이나 발전기 등과 같은 냉각 대상물에 공급되는 냉각수의 양에 따라 냉각수를 냉각시키는 쿨러에 냉매로 사용되는 해수를 공급하는 해수펌프의 속도를 가변시킴으로써 냉각수를 과잉으로 냉각시키거나 부족하게 냉각시키는 것을 방지하고, 이로 인해 쿨러의 에너지 효율을 높임과 아울러 냉각 대상물의 냉각 효율을 증대시키는 효과를 가진다. According to the present invention, the cooling water is excessively cooled or insufficiently cooled by varying the speed of the seawater pump supplying the seawater used as the refrigerant to the cooler cooling the cooling water according to the amount of cooling water supplied to a cooling target such as an engine or a generator. It prevents, thereby increasing the energy efficiency of the cooler and at the same time increasing the cooling efficiency of the object to be cooled.

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 해수를 이용하는 선박의 냉각장치를 도시한 구성도이다. 도시된 바와 같이, 본 발명에 따른 해수를 이용하는 선박의 냉각장치(100)는 해수탱크(112)에 해수를 순환 공급함과 아울러 속도가 가변되는 해수펌프(11)와, 해수펌프(111)에 의해 순환 공급되는 해수를 냉매로 사용하는 쿨러(110)와, 쿨러(110)로부터 냉각 대상물(1)로 냉각수를 순환 공급시키는 경로를 제공함과 아울러 냉각수가 냉각 대상물(1)을 바이패스(By-pass)하도록 하는 바이패스라인(122)을 가지는 냉각수순환라인(120)과, 냉각수순환라인(120)을 따라 순환되는 냉각수의 흐름을 바이패스라인(122)으로 전환시키는 밸브수단(130)과, 밸브수단(130)의 개폐 정도를 감지하는 개폐감지수단(140)과, 개폐감지수단(140)의 감지신호를 수신받아 해수펌프(111)의 속도를 제어하는 제어부(150)를 포함한다.2 is a block diagram showing a cooling apparatus of a ship using sea water according to the present invention. As shown, the cooling device 100 of the vessel using the sea water according to the present invention by the sea water tank 112, the sea water pump 11 and the sea water pump 111 is variable in speed and circulating supply The cooler 110 using the circulated supplied sea water as a refrigerant, and a path for circulating and supplying the cooling water from the cooler 110 to the cooling object 1, and the cooling water bypasses the cooling object 1. Cooling water circulation line 120 having a bypass line 122, valve means 130 for converting the flow of cooling water circulated along the cooling water circulation line 120 to the bypass line 122, and the valve Opening and closing detection means 140 for detecting the opening and closing degree of the means 130, and a control unit 150 for controlling the speed of the seawater pump 111 receives the detection signal of the opening and closing detection means 140.

해수펌프(111)는 유입구(112a)를 통해서 해수가 유입되는 해수탱크(112)에 해수순환라인(113)을 따라 해수를 순환 공급하도록 펌핑하며, 제어부(150)에 의해 속도가 가변되는 펌프로서, 무단 변속 펌프 또는 다단 변속 펌프가 사용되며, 일 예로 2단계로 속도가 가변되는 2단 변속 펌프가 사용될 수 있다.The seawater pump 111 pumps the seawater circulating along the seawater circulation line 113 to the seawater tank 112 through which the seawater is introduced through the inlet 112a, and is a pump whose speed is variable by the controller 150. For example, a continuously variable pump or a multiple speed pump may be used. For example, a two speed pump having a variable speed in two stages may be used.

쿨러(110)는 해수순환라인(113)에 설치되어 해수펌프(111)의 펌핑에 의해 해수순환라인(113)을 따라 해수를 순환 공급받음으로써 해수를 냉매로 사용하여 냉각수를 열교환에 의해 냉각시킨다.The cooler 110 is installed in the sea water circulation line 113 to receive sea water circulated along the sea water circulation line 113 by pumping of the sea water pump 111 to cool the coolant by heat exchange using sea water as a refrigerant. .

냉각수순환라인(120)은 쿨러(110)로부터 열교환을 마친 냉각수가 냉각수펌프(121)에 의해 엔진이나 발전기 등의 냉각 대상물(1)로 순환 공급되기 위한 경로를 제공하고, 냉각수가 냉각 대상물(1)을 바이패스하도록 바이패스라인(122)이 연결된다.The cooling water circulation line 120 provides a path for circulating and supplying the cooling water after the heat exchange from the cooler 110 to the cooling object 1 such as an engine or a generator by the cooling water pump 121, and cooling water 1 Bypass line 122 is connected to bypass.

밸브수단(130)은 냉각수순환라인(120)을 따라 냉각 대상물(1)로 순환되는 냉각수의 흐름을 바이패스라인(122)으로 전환시키거나, 역동작에 의해 바이패스라 인(122)을 따라 냉각 대상물(1)을 바이패스하는 냉각수의 흐름을 냉각 대상물(1)로 순환되도록 전환시키며, 개폐 정도에 따라 냉각수의 흐름 정도를 조절할 수 있다.The valve means 130 converts the flow of the cooling water circulated to the cooling object 1 along the cooling water circulation line 120 to the bypass line 122 or along the bypass line 122 by reverse operation. The flow of the cooling water bypassing the cooling object 1 is switched to be circulated to the cooling object 1, and the degree of cooling water flow can be adjusted according to the degree of opening and closing.

밸브수단(130)은 냉각수순환라인(120)과 바이패스라인(122)에 각각 설치되어 쿨러(110)로부터 냉각수순환라인(120)을 통해 냉각 대상물(1)로 공급되는 냉각수의 양과 쿨러(110)로부터 바이패스라인(122)을 통해 냉각 대상물(1)을 바이패스하는 냉각수의 양을 각각 제어하는 다수의 개폐밸브 조합으로 이루어질 수 있으며, 개폐감지수단(140)에 의한 개폐 정도를 용이하게 측정하도록 함과 아울러 밸브의 설치를 편리하게 하기 위하여 본 실시예에서처럼 냉각수순환라인(120)으로부터 바이패스라인(122)으로 분기되는 부위에 설치되어 냉각수의 흐름을 전환시키는 3방향 밸브로 이루어짐이 바람직하다. The valve means 130 is installed in the cooling water circulation line 120 and the bypass line 122, respectively, and the amount of the cooling water and the cooler 110 supplied from the cooler 110 to the cooling target 1 through the cooling water circulation line 120. It can be made of a plurality of on-off valve combinations for respectively controlling the amount of cooling water bypassing the cooling object (1) through the bypass line (122), the opening and closing degree by the opening and closing detection means 140 easily measured In order to facilitate the installation of the valve, it is preferable that the valve is installed at a portion branched from the cooling water circulation line 120 to the bypass line 122 to change the flow of the cooling water. .

개폐감지수단(140)은 밸브수단(130)의 개폐 정도를 감지하여 감지신호로 출력하는데, 이를 위해 다양한 수단으로 구성될 수 있으며, 예를 들면, 직선 운동하는 스템(stem)의 이동량에 따라 개방 정도가 정해지는 다이아프램 밸브의 경우 스템에 설치되는 포지션 센서가 사용됨으로써 이러한 포지션 센서에 의한 스템의 이동량에 따라 밸브의 개방 정도를 감지하거나, 로터의 회전각에 따라 개방 정도가 정해지는 로터리 밸브의 경우 로터에 회전각을 측정하여 감지신호를 출력하는 엔코더(Encoder)가 사용됨으로써 이러한 엔코더로부터 출력되는 감지신호로부터 로터의 회전각을 측정하여 밸브의 개방 정도를 감지하거나, 이러한 엔코더를 대신하여 로터에 부착되는 자석과 자석의 위치 변화를 감지하기 휘한 홀 센서 등이 사용될 수 있다.The opening and closing detection unit 140 detects the opening and closing degree of the valve unit 130 and outputs it as a detection signal. For this purpose, the opening and closing detection unit 140 may be configured by various means, for example, opening in accordance with the movement amount of the stem moving linearly. In the case of the diaphragm valve whose degree is determined, the position sensor installed in the stem is used to detect the opening of the valve according to the movement of the stem by the position sensor, or the rotary valve of the rotary valve whose opening degree is determined according to the rotation angle of the rotor. In this case, an encoder is used to measure the rotational angle of the rotor and output a detection signal. Therefore, the rotational angle of the rotor is measured from the detection signal output from such an encoder, thereby detecting the opening degree of the valve, or in place of the encoder. A magnet to be attached and a Hall sensor bent to detect a change in position of the magnet may be used.

제어부(150)는 개폐감지수단(140)으로부터 출력되는 감지신호를 수신받아 해수펌프(112)의 속도를 제어한다.The controller 150 receives the detection signal output from the open / close detection unit 140 to control the speed of the seawater pump 112.

한편, 냉각 대상물(1)로 공급되는 냉각수의 온도가 설정된 온도에 해당되도록 온도센서(160)를 더 포함할 수 있는데, 온도센서(160)는 냉각수순환라인(120)에서 냉각 대상물(1)의 전단에 설치되어 냉각 대상물(1)로 공급되는 냉각수의 온도를 측정하여 제어부(150)로 감지신호를 출력한다.On the other hand, the temperature sensor 160 may further include a temperature sensor 160 so that the temperature of the cooling water supplied to the cooling target 1 corresponds to the set temperature, the temperature sensor 160 of the cooling target 1 in the cooling water circulation line 120 It is installed at the front end to measure the temperature of the cooling water supplied to the cooling target (1) and outputs a detection signal to the controller 150.

제어부(150)는 온도센서(160)로부터 출력되는 감지신호를 수신받아 냉각 대상물(1)로 공급되는 냉각수의 온도가 설정된 온도, 예를 들면 36℃에 해당되도록 밸브수단(130)의 개폐 정도를 제어함으로써 쿨러(110)로부터 밸브수단(130)을 통해서 냉각 대상물(1)로 유입되는 냉각수의 양을 조절하게 된다.The controller 150 receives the detection signal output from the temperature sensor 160 to adjust the opening and closing degree of the valve means 130 so that the temperature of the cooling water supplied to the cooling target 1 corresponds to a set temperature, for example, 36 ° C. By controlling the amount of cooling water flowing from the cooler 110 to the cooling target 1 through the valve means 130.

제어부(150)는 밸브수단(130)이 쿨러(110)에서 냉각 대상물(1)로 냉각수를 공급시키도록 개방되는 정도가 설정된 개방량 이상이면 해수펌프(111)를 고속으로 동작시키고, 설정된 개방량 미만이면 해수펌프(111)를 저속으로 동작시키며, 이로 인해 쿨러(110)에 의해 냉각되어 냉각 대상물(1)로 공급되는 냉각수의 양이 많아지면 해수펌프(111)를 고속으로 동작시켜 냉각수가 냉각 대상물(1)을 통과하도록 함으로써 온도가 상승된 냉각 대상물(1)을 제대로 냉각시키도록 하고, 쿨러(110)에 의해 냉각된 냉각수가 냉각 대상물(1)로 공급되기 보다 바이패스라인(122)을 통해 바이패스되는 양이 많아지면 해수펌프(111)를 저속으로 동작시킴으로써 온도가 비교적 적게 상승된 냉각 대상물(1)을 과잉 냉각시키지 않도록 한다.The controller 150 operates the seawater pump 111 at a high speed when the valve means 130 is opened to supply the cooling water from the cooler 110 to the cooling object 1 or more. If less than, the seawater pump 111 is operated at a low speed. If the amount of the coolant is cooled by the cooler 110 and supplied to the object to be cooled 1, the seawater pump 111 is operated at a high speed to cool the coolant. By passing through the object (1) to properly cool the cooling object (1) the temperature is raised, and the bypass line 122 is supplied to the cooling object (1) rather than the cooling water cooled by the cooler 110 is supplied to the cooling object (1) When the amount of the bypass is increased, the seawater pump 111 is operated at a low speed so as not to overcool the cooling object 1 whose temperature is relatively low.

한편, 제어부(150)는 제어하고자 하는 해수펌프(111)의 속도를 결정하는 밸 브수단(130)의 설정된 개방량이 쿨러(110)로부터 냉각 대상물(1)로 냉각수를 최대한 공급시 개방되는 정도의 40 ∼ 60%를 가짐이 바람직하며, 더욱 바람직하게는 50%이다.On the other hand, the control unit 150 is a degree of opening the amount of opening of the valve means 130 for determining the speed of the sea water pump 111 to be controlled when the cooling water is supplied to the cooling object (1) as much as possible It is preferable to have 40 to 60%, More preferably, it is 50%.

이와 같은 구성을 가지는 본 발명에 따른 해수를 이용하는 선박의 냉각장치의 작용을 설명하면 다음과 같다. Referring to the operation of the cooling device of the ship using sea water according to the present invention having such a configuration as follows.

해수펌프(111)의 작동에 의해 해수탱크(112)로부터 쿨러(110)로 해수가 공급되면, 쿨러(110)는 해수를 냉매로 사용하여 냉각수펌프(121)의 작동에 의해 냉각수순환라인(120)을 따라 순환 공급되는 냉각수를 냉각시킨다. When seawater is supplied from the seawater tank 112 to the cooler 110 by the operation of the seawater pump 111, the cooler 110 uses the seawater as a coolant and the coolant circulation line 120 by the operation of the coolant pump 121. Cool the cooling water circulated along).

쿨러(110)에 의해 냉각된 냉각수는 냉각수순환라인(120)을 따라 엔진이나 발전기 등과 같이 냉각이 필요한 대상물(1)로 순환 공급됨으로써 냉각 대상물(1)을 냉각시킨다. 이 때, 제어부(150)는 온도센서(160)로부터 출력되는 감지신호를 수신받아 냉각수가 정해진 온도, 예컨대 36℃에 도달하도록 밸브수단(130)을 제어함으로써 냉각수순환라인(120)을 통한 냉각 대상물(1)로 순환되는 냉각수의 양과 냉각 대상물(1)을 바이패스하는 냉각수의 양을 조절한다.The cooling water cooled by the cooler 110 is circulated and supplied along the cooling water circulation line 120 to the object 1 requiring cooling such as an engine or a generator to cool the cooling object 1. At this time, the controller 150 receives the detection signal output from the temperature sensor 160 to control the valve means 130 so that the coolant reaches a predetermined temperature, for example 36 ℃ by cooling the cooling object through the cooling water circulation line 120 The amount of cooling water circulated to (1) and the amount of cooling water bypassing the cooling target 1 are adjusted.

이 때, 제어부(150)는 개폐감지수단(140)에 의해 밸브수단(130)의 개폐 정도, 즉 쿨러(110)로부터 냉각 대상물(1)로 냉각수가 공급되도록 하는 밸브 수단(130)의 개방 정도를 측정하여 40 ∼ 60% 범위 내의 설정된 개방량, 예컨대 50% 이상인 경우 해수펌프(111)를 고속으로 작동시키고, 40 ∼ 60% 범위 내의 설정된 개방량, 예컨대 50% 미만인 경우 해수펌프(111)를 저속으로 작동시킨다. At this time, the control unit 150 is the opening and closing degree of the valve means 130 by the opening and closing detection means 140, that is, the opening degree of the valve means 130 so that the cooling water is supplied from the cooler 110 to the cooling object (1). Measure the open water in the range of 40 to 60%, for example 50% or more operating the seawater pump 111 at a high speed, and if the open amount in the range of 40 to 60%, for example less than 50% of the seawater pump 111 Run at low speed.

그러므로, 쿨러(110)에 의해 냉각되어 엔진이나 발전기 등과 같은 냉각 대상 물(1)에 공급되는 냉각수의 양에 따라 쿨러(110)에 냉매로 사용되는 해수를 공급하는 해수펌프(111)의 속도를 가변시킴으로써 냉각수를 과잉으로 냉각시킴으로 인해 발생되는 쿨러(110)의 에너지 효율 저하를 방지하고, 냉각수를 부족하게 냉각시킴으로 인해 발생되는 냉각 대상물(1)의 냉각 효율 감소를 방지한다.Therefore, according to the amount of cooling water cooled by the cooler 110 and supplied to the water to be cooled 1 such as an engine or a generator, the speed of the seawater pump 111 for supplying seawater used as a coolant to the cooler 110 is determined. By varying, the energy efficiency of the cooler 110 generated by excessively cooling the cooling water is prevented, and the cooling efficiency of the cooling target 1 generated by cooling the cooling water insufficiently is prevented.

한편, 본 발명에 따른 해수를 이용하는 선박의 냉각장치(100)는 해수를 냉매로서 사용할 수 있는 저온의 해역이나 극한 지역을 항해시 그 활용성이 증가하게 된다. On the other hand, the cooling device 100 of the vessel using the sea water according to the present invention will increase its utility when sailing in low-temperature sea areas or extreme areas that can use the sea water as a refrigerant.

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 해수를 이용하는 선박의 냉각장치를 도시한 구성도이고,1 is a block diagram showing a cooling apparatus of a ship using sea water according to the prior art,

도 2는 본 발명에 따른 해수를 이용하는 선박의 냉각장치를 도시한 구성도이다.2 is a block diagram showing a cooling apparatus of a ship using sea water according to the present invention.

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

110 : 쿨러 111 : 해수펌프110: cooler 111: sea water pump

112 : 해수탱크 112a : 유입구112: seawater tank 112a: inlet

113 : 해수순환라인 120 : 냉각수순환라인113: sea water circulation line 120: cooling water circulation line

121 : 냉각수펌프 122 : 바이패스라인121: cooling water pump 122: bypass line

130 : 밸브수단 140 : 개폐감지수단130: valve means 140: opening and closing detection means

150 : 제어부 160 : 온도센서150: control unit 160: temperature sensor

Claims (4)

선박에 설치되며, 해수를 이용하는 냉각장치에 있어서,In the cooling device installed in the ship, using sea water, 해수가 유입되는 해수탱크에 해수순환라인을 따라 해수를 순환 공급시키며, 속도가 가변되는 해수펌프와,A seawater pump which circulates and supplies the seawater along the seawater circulation line to the seawater tank into which the seawater flows, and has a variable speed; 상기 해수펌프에 의해 순환 공급되는 해수를 냉매로 사용하는 쿨러와,A cooler using seawater circulated and supplied by the seawater pump as a refrigerant; 상기 쿨러로부터 열교환을 마친 냉각수가 냉각수펌프에 의해 냉각 대상물로 순환 공급되기 위한 경로를 제공하며, 냉각 대상물을 바이패스하는 바이패스라인을 가지는 냉각수순환라인과,A cooling water circulation line providing a path for circulating the cooling water after the heat exchange from the cooler to the cooling object by a cooling water pump, and having a bypass line for bypassing the cooling object; 상기 냉각수순환라인을 따라 순환되는 냉각수의 흐름을 상기 바이패스라인으로 전환시키는 밸브수단과,Valve means for converting a flow of cooling water circulated along the cooling water circulation line to the bypass line; 상기 밸브수단의 개폐 정도를 감지하여 감지신호로 출력하는 개폐감지수단과,Opening and closing detection means for detecting the opening and closing degree of the valve means and outputting as a detection signal; 상기 개폐감지수단의 감지신호를 수신받아 상기 밸브수단이 상기 쿨러에서 냉각 대상물로 냉각수를 공급시키도록 개방되는 정도가 설정된 개방량 이상이면 상기 해수펌프를 고속으로 동작시키고, 설정된 개방량 미만이면 상기 해수펌프를 저속으로 동작시키도록 상기 해수펌프의 속도를 제어하는 제어부The seawater pump operates at a high speed when the valve means is opened to supply the cooling water from the cooler to the cooling object by receiving the detection signal of the opening / closing detection means, and operates the seawater pump at a high speed. Control unit for controlling the speed of the sea water pump to operate the pump at a low speed 를 포함하는 해수를 이용하는 선박의 냉각장치.Cooling apparatus of the ship using sea water comprising a. 제 1 항에 있어서,The method of claim 1, 상기 냉각수순환라인에 설치되며, 냉각수의 온도를 측정하여 상기 제어부로 감지신호를 출력하는 온도센서를 더 포함하고,It is installed in the cooling water circulation line, further comprising a temperature sensor for measuring the temperature of the cooling water and outputs a detection signal to the control unit, 상기 제어부는 상기 온도센서의 감지신호를 수신받아 상기 냉각 대상물로 공급되는 냉각수의 온도가 설정된 온도에 해당되도록 상기 밸브수단의 개폐 정도를 제어하는 것The control unit receives the detection signal of the temperature sensor to control the opening and closing degree of the valve means so that the temperature of the cooling water supplied to the cooling object corresponds to the set temperature 을 특징으로 하는 해수를 이용하는 선박의 냉각장치.Cooling apparatus of a ship using sea water characterized in that. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2, 상기 밸브수단은,The valve means, 상기 냉각수순환라인에서 상기 바이패스라인으로 분기되는 부위에 설치되는 3방향밸브인 것Being a three-way valve is installed in the branch portion from the cooling water circulation line to the bypass line 을 특징으로 하는 해수를 이용하는 선박의 냉각장치.Cooling apparatus of a ship using sea water characterized in that. 제 1 항에 있어서,The method of claim 1, 상기 밸브 수단의 설정된 개방량은 40 ∼ 60%인 것The set opening amount of the valve means is 40 to 60% 을 특징으로 하는 해수를 이용하는 선박의 냉각장치.Cooling apparatus of a ship using sea water characterized in that.
KR1020080038100A 2008-04-24 2008-04-24 Cooling apparatus using seawater in a vessel KR20090112296A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140078117A (en) * 2012-12-17 2014-06-25 대우조선해양 주식회사 Pump speed control Apparatus and Method for M/E jacket cooling system
KR20160071742A (en) 2014-12-12 2016-06-22 대우조선해양 주식회사 Cooling water control system and control method in artics vessel
KR20160080369A (en) 2014-12-29 2016-07-08 대우조선해양 주식회사 Cooling water control system, method, and artics vessel having the control system
KR20170073097A (en) 2015-12-18 2017-06-28 대우조선해양 주식회사 Chilled water direct cooling apparatus for saving energy
WO2019160224A1 (en) * 2018-02-19 2019-08-22 서민수 Seawater circulation system for ship
KR20200093816A (en) 2019-01-29 2020-08-06 대우조선해양 주식회사 Arctic vessel having cooling water control system and method for controling cooling water in the arctic vessel

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140078117A (en) * 2012-12-17 2014-06-25 대우조선해양 주식회사 Pump speed control Apparatus and Method for M/E jacket cooling system
KR20160071742A (en) 2014-12-12 2016-06-22 대우조선해양 주식회사 Cooling water control system and control method in artics vessel
KR20160080369A (en) 2014-12-29 2016-07-08 대우조선해양 주식회사 Cooling water control system, method, and artics vessel having the control system
KR20170073097A (en) 2015-12-18 2017-06-28 대우조선해양 주식회사 Chilled water direct cooling apparatus for saving energy
WO2019160224A1 (en) * 2018-02-19 2019-08-22 서민수 Seawater circulation system for ship
CN111433120A (en) * 2018-02-19 2020-07-17 徐岷竖 Seawater circulation system of ship
KR20200093816A (en) 2019-01-29 2020-08-06 대우조선해양 주식회사 Arctic vessel having cooling water control system and method for controling cooling water in the arctic vessel

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