KR102047582B1 - Marine Gas Oil Cooling System in Vessel - Google Patents

Marine Gas Oil Cooling System in Vessel Download PDF

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KR102047582B1
KR102047582B1 KR1020160032029A KR20160032029A KR102047582B1 KR 102047582 B1 KR102047582 B1 KR 102047582B1 KR 1020160032029 A KR1020160032029 A KR 1020160032029A KR 20160032029 A KR20160032029 A KR 20160032029A KR 102047582 B1 KR102047582 B1 KR 102047582B1
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fresh water
cooling
mgo
cooling fresh
cooler
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KR1020160032029A
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Korean (ko)
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KR20170108323A (en
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서석용
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현대중공업 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
    • F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
    • B63B2770/00—
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Abstract

본 발명은 MGO(Marine Gas Oil)를 냉각시켜 MGO의 점도를 선박 메인엔진에서 사용 가능한 점도로 유지시키기 위한 선박에서의 MGO 냉각 시스템에 관한 것이다.
본 발명은 선박 메인엔진의 연료로 사용하기 위한 MGO를 냉각시켜 MGO의 점도를 메인엔진에서 사용 가능한 점도로 유지시키는 선박에서의 MGO 냉각 시스템으로서, 설정 온도의 쿨링 청수를 순환시키는 배관라인에 설치되어 상기 쿨링 청수의 냉기를 MGO에 열 교환하여 MGO를 냉각시키는 MGO 쿨러와; 상기 MGO 쿨러에 대하여 설정 온도의 쿨링 청수를 가압하여 순환시키는 쿨링청수펌프와; 상기 MGO 쿨러를 거쳐서 상기 쿨링청수펌프를 통해 인가되는 쿨링 청수를 해수에 의해 냉각시키는 청수쿨러와; 설정된 쿨링 청수 배출지점을 통과하는 쿨링 청수의 온도에 따라, 상기 쿨링청수펌프로부터 쿨링 청수 배출지점에 인가되는 쿨링 청수의 유량과, 상기 청수쿨러로부터 쿨링 청구 배출지점에 인가되는 냉각된 쿨링 청수의 유량을 조절하여서, 쿨링 청수 배출지점을 통해 상기 MGO 쿨러에 송출되는 쿨링 청수의 온도를 상기 설정 온도로 유지하는 온도조절밸브를 포함하는 것을 특징으로 하는 선박에서의 MGO 냉각 시스템을 제공한다.
본 발명에 의하면, 선박에서 MGO를 엔진 연료로서 사용하고자는 경우 MGO를 냉각시켜 MGO의 점도를 엔진 사용 가능 점도로 높여주되, 쿨링 청수에 의해 열 교환하여 냉각 작용하는 쿨러를 이용하여 MGO를 냉각시킴으로써 별도의 냉매에 의해 MGO를 냉각시키는 고가의 칠러를 사용하지 않고서도 MGO를 냉각시키므로, MGO를 경제성 있게 냉각시키게 된다.The present invention relates to an MGO cooling system in a ship for cooling MGO (Marine Gas Oil) to maintain the viscosity of the MGO at a viscosity usable in the ship's main engine.
The present invention is an MGO cooling system in a ship that maintains the viscosity of the MGO at a viscosity that can be used in the main engine by cooling the MGO for use as fuel of the ship's main engine, and is installed in a piping line for circulating cooling fresh water at a set temperature. An MGO cooler configured to cool the MGO by exchanging heat of the cooling fresh water with MGO; A cooling fresh water pump configured to pressurize and circulate cooling fresh water at a predetermined temperature with respect to the MGO cooler; Fresh water cooler for cooling the cooling fresh water applied through the cooling fresh water pump through the MGO cooler by sea water; The flow rate of the cooling fresh water applied to the cooling fresh water discharge point from the cooling fresh water pump and the flow rate of the cooled cooling fresh water applied to the cooling charge discharge point from the fresh water cooler according to the temperature of the cooling fresh water passing through the set cooling fresh water discharge point. By adjusting the, MGO cooling system in a ship comprising a temperature control valve for maintaining the temperature of the cooling fresh water sent to the MGO cooler through the cooling fresh water discharge point to the set temperature.
According to the present invention, in the case of using MGO as an engine fuel in a ship, the MGO is cooled to increase the viscosity of the MGO to an engine usable viscosity, but by cooling the MGO by using a cooler that exchanges heat by cooling fresh water. Since the MGO is cooled without using an expensive chiller that cools the MGO by a separate refrigerant, the MGO is economically cooled.

Description

선박에서의 MGO 냉각 시스템{Marine Gas Oil Cooling System in Vessel}Marine Gas Oil Cooling System in Vessel

본 발명은 선박에서 MGO(Marine Gas Oil)를 엔진 연료로서 사용하고자는 경우 MGO를 냉각시켜 MGO의 점도를 엔진 사용 가능 점도로 높여주되, 쿨링 청수(cooling fresh water)에 의해 열 교환하여 냉각 작용하는 쿨러(Cooler)를 이용하여 MGO를 냉각시킴으로써 별도의 냉매에 의해 MGO를 냉각시키는 고가의 칠러(Chiller)를 사용하지 않고서도 MGO를 냉각시키도록 하는 선박에서의 MGO 냉각 시스템에 관한 것이다..In the present invention, when using MGO (Marine Gas Oil) as an engine fuel in a ship, the MGO is cooled to increase the viscosity of the MGO to the engine usable viscosity, and is cooled by heat exchange by cooling fresh water. The present invention relates to an MGO cooling system in a ship that allows the MGO to be cooled without using an expensive chiller that cools the MGO by a separate refrigerant by cooling the MGO using a cooler.

일반적으로 선박이 전세계 대부분의 물류를 담당하고 있으며, 선박의 용적 톤수는 대형화 되어가는 추세에 있다.In general, ships are in charge of most of the world's logistics, and the volume tonnage of ships is increasing.

선박의 추진력을 발생하기 위해서는 엔진을 구동하여야 하는데, 선박 엔진의 연료로서는 유독한 배기가스를 배출하는 저가 연료를 사용하고 있다.In order to generate the propulsion of the ship, the engine must be driven, and as the fuel of the ship engine, low-cost fuel that emits toxic exhaust gas is used.

현재 대다수 선박들은 가격이 저렴한 벙커C유를 엔진 연료로 사용하며, 벙커C유는 엔진에서 연소되는 경우 많은 양의 아황산가스를 배출함과 아울러 스모그 원인인 산화질소가스를 배출함에 기인하여 환경을 크게 오염시키는 문제점이 있다.Most ships currently use inexpensive bunker C oil as an engine fuel.Burker C oil emits large amounts of sulfur dioxide when burned in the engine, and also emits nitrogen oxide gas, which is a cause of smog. There is a problem of contamination.

이에 따라, 미국, 유럽 등 각국에서는 근해를 항해하는 선박의 경우에 엔진 동력원으로서 유해물질 함유량이 비교적 적은 MGO를 사용하도록 하는 규정을 제정하여 시행하기에 이르렀다.Accordingly, in the US and Europe, countries such as ships sailing offshore have enacted and implemented a regulation to use MGO with a relatively low content of harmful substances as an engine power source.

그러나, MGO는 점도가 낮기 때문에 선박 엔진에서 MGO를 그대로 연료로서 사용하는 경우 큰 문제를 일으킬 수 있으며, 이를 보완하기 위해서는 MGO를 냉각시켜 40℃에서 MGO의 점도를 3cSt 이상으로 유지해야할 필요가 있다.However, since MGO has a low viscosity, it may cause a big problem when MGO is used as a fuel in a ship engine. To compensate for this, it is necessary to cool the MGO and maintain the viscosity of the MGO at 3 ° C or higher at 40 ° C.

종래에는 점도가 40℃에서 2cSt인 MGO를 점도 3cSt로 높이기 위해서는 R-407C와 같은 냉매를 압축 및 기화시켜서 MGO를 냉각시키기 위한 고가의 칠러(Chiller)를 선박에 설치하여 사용해야 하므로 경제성이 저하되는 문제점이 있다.Conventionally, in order to increase the MGO having a viscosity of 2cSt to 3cSt at 40 ° C, an expensive chiller for cooling the MGO by compressing and vaporizing a refrigerant, such as R-407C, needs to be installed on a ship and thus the economy is deteriorated. There is this.

본 발명은 상술한 바와 같은 종래기술의 문제점을 해결하기 위하여 제안된 것으로, 선박에서 MGO를 엔진 연료로서 사용하고자는 경우 MGO를 냉각시켜 MGO의 점도를 엔진 사용 가능 점도로 높여주되, 쿨링 청수(cooling fresh water)에 의해 열 교환하여 냉각 작용하는 쿨러(Cooler)를 이용하여 MGO를 냉각시킴으로써 별도의 냉매에 의해 MGO를 냉각시키는 고가의 칠러(Chiller)를 사용하지 않고서도 MGO를 냉각시키도록 하는 선박에서의 MGO 냉각 시스템을 제공함에 목적이 있다.The present invention has been proposed in order to solve the problems of the prior art as described above, if you want to use MGO as an engine fuel in the vessel to increase the viscosity of the MGO to the engine usable viscosity by cooling the MGO, cooling cooling (cooling) In a ship that cools MGO without using an expensive chiller that cools MGO by using a separate refrigerant by cooling the MGO by using a cooler that exchanges heat with fresh water. The aim is to provide an MGO cooling system.

이와 같은 목적을 달성하기 위하여, 본 발명은 선박 메인엔진의 연료로 사용하기 위한 MGO(Marine Gas Oil)를 냉각시켜 MGO의 점도를 메인엔진에서 사용 가능한 점도로 유지시키는 선박에서의 MGO 냉각 시스템으로서, 설정 온도의 쿨링 청수를 순환시키는 배관라인에 설치되어 상기 쿨링 청수의 냉기를 MGO에 열 교환하여 MGO를 냉각시키는 MGO 쿨러와; 상기 MGO 쿨러에 대하여 설정 온도의 쿨링 청수를 가압하여 순환시키는 쿨링청수펌프와; 상기 MGO 쿨러를 거쳐서 상기 쿨링청수펌프를 통해 인가되는 쿨링 청수를 해수에 의해 냉각시키는 청수쿨러와; 설정된 쿨링 청수 배출지점을 통과하는 쿨링 청수의 온도에 따라, 상기 쿨링청수펌프로부터 쿨링 청수 배출지점에 인가되는 쿨링 청수의 유량과, 상기 청수쿨러로부터 쿨링 청구 배출지점에 인가되는 냉각된 쿨링 청수의 유량을 조절하여서, 쿨링 청수 배출지점을 통해 상기 MGO 쿨러에 송출되는 쿨링 청수의 온도를 상기 설정 온도로 유지하는 온도조절밸브를 포함하는 것을 특징으로 하는 선박에서의 MGO 냉각 시스템을 제공한다.In order to achieve the above object, the present invention is an MGO cooling system in a ship to maintain the viscosity of the MGO to the viscosity available in the main engine by cooling MGO (Marine Gas Oil) for use as fuel in the ship's main engine, An MGO cooler installed in a pipe line for circulating cooling fresh water at a predetermined temperature to heat-exchange the cold air of the cooling fresh water to the MGO; A cooling fresh water pump configured to pressurize and circulate cooling fresh water at a predetermined temperature with respect to the MGO cooler; Fresh water cooler for cooling the cooling fresh water applied through the cooling fresh water pump through the MGO cooler by sea water; The flow rate of the cooling fresh water applied to the cooling fresh water discharge point from the cooling fresh water pump and the flow rate of the cooled cooling fresh water applied to the cooling charge discharge point from the fresh water cooler according to the temperature of the cooling fresh water passing through the set cooling fresh water discharge point. By adjusting the, MGO cooling system in a ship comprising a temperature control valve for maintaining the temperature of the cooling fresh water sent to the MGO cooler through the cooling fresh water discharge point to the set temperature.

본 발명에 따른 선박에서의 MGO 냉각 시스템에 의하면, 상기 청수쿨러에 해수를 인가하는 쿨링해수펌프를 더 포함한다.According to the MGO cooling system in the ship according to the present invention, further comprises a cooling sea water pump for applying sea water to the fresh water cooler.

또한, 본 발명에 따른 선박에서의 MGO 냉각 시스템에 의하면, 상기 MGO 쿨러에 대해 상기 설정 온도의 쿨링 해수를 순환시키는 배관에 설치되어 온도 변화에 따라 발생하는 배관수의 압력을 흡수하는 청수팽창탱크를 더 포함한다.In addition, according to the MGO cooling system in the ship according to the present invention, the fresh water expansion tank is installed in the pipe for circulating the cooling sea water of the set temperature to the MGO cooler to absorb the pressure of the pipe water generated by the temperature change It includes more.

본 발명에 의하면, 선박에서 MGO를 엔진 연료로서 사용하고자는 경우 MGO를 냉각시켜 MGO의 점도를 엔진 사용 가능 점도로 높여주되, 쿨링 청수에 의해 열 교환하여 냉각 작용하는 쿨러를 이용하여 MGO를 냉각시킴으로써 별도의 냉매에 의해 MGO를 냉각시키는 고가의 칠러를 사용하지 않고서도 MGO를 냉각시키므로, MGO를 경제성 있게 냉각시키게 된다.According to the present invention, in the case of using MGO as an engine fuel in a ship, the MGO is cooled to increase the viscosity of the MGO to an engine usable viscosity, but by cooling the MGO using a cooler that exchanges heat by cooling fresh water. Since the MGO is cooled without using an expensive chiller that cools the MGO by a separate refrigerant, the MGO is economically cooled.

도 1은 본 발명에 따른 선박에서의 MGO 냉각 시스템을 예시한 구성도이다.1 is a block diagram illustrating an MGO cooling system in a ship according to the present invention.

이하 첨부 도면을 참조하여 본 발명의 실시예를 상세히 설명한다. 본 발명은 도면에 도시된 실시예를 참고로 설명하였으나 이는 하나의 실시예로서 설명하는 것이며, 이것에 의해 본 발명의 기술적 사상과 그 핵심 구성 및 작용이 제한되지 않는다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, this is described as one embodiment, whereby the technical spirit of the present invention and its core configuration and operation are not limited.

본 발명은 선박에서 MGO를 엔진 연료로서 사용하고자는 경우 MGO를 냉각시켜 MGO의 점도를 엔진 사용 가능 점도로 높여주되, 쿨링 청수에 의해 열 교환하여 냉각 작용하는 쿨러를 이용하여 MGO를 냉각시킴으로써 별도의 냉매에 의해 MGO를 냉각시키는 고가의 칠러를 사용하지 않고서도 MGO를 냉각시키도록 구현된다.The present invention is to increase the viscosity of the MGO to the engine usable viscosity by cooling the MGO to use the MGO as engine fuel in the vessel, by cooling the MGO by using a cooler that works by exchanging heat by cooling fresh water The refrigerant is implemented to cool the MGO without using an expensive chiller to cool the MGO.

이와 같이 구현하기 위하여 본 발명은 도 1에 예시된 바와 같이 메인엔진 에어쿨러(135)에 대하여 10℃의 쿨링 청수를 순환시키는 배관라인에 MGO 쿨러(137)를 설치함으로써 메인엔진 에어쿨러(135)에 순환되는 10℃의 쿨링 청수를 MGO 쿨러(137)에도 함께 순환시켜서 MGO 쿨러(137)에 의해 MGO를 냉각시켜 MGO의 점도를 선박의 메인엔진에서 사용 가능한 점도로 유지하도록 이루어진다.In order to implement the present invention, as shown in FIG. 1, the main engine air cooler 135 is installed by installing an MGO cooler 137 in a piping line circulating cooling fresh water at 10 ° C. with respect to the main engine air cooler 135. The cooling fresh water of 10 ° C circulated in the MGO cooler 137 is also circulated together to cool the MGO by the MGO cooler 137 is made to maintain the viscosity of the MGO to be available in the main engine of the vessel.

메인엔진 에어 쿨러(135)는 온도조절밸브(V19)를 통해 인가되는 10℃인 쿨링 청수의 냉기를 메인엔진의 에어(air)에 열 교환하여서 메인엔진의 에어를 냉각시킨다.The main engine air cooler 135 cools the air of the main engine by exchanging heat of cooling fresh water at 10 ° C. applied through a temperature control valve V19 to air of the main engine.

MGO 쿨러(137)는 온도조절밸브(V19)를 통해 인가되는 온도가 10℃인 쿨링 청수의 냉기를 MGO에 열 교환하여 MGO를 냉각시켜 MGO의 점도를 높여 줌으로써 MGO의 점도를 선박의 메인엔진에서 사용 가능한 점도로 유지케 한다.The MGO cooler 137 exchanges the cooling fresh water having a temperature of 10 ° C. through the temperature control valve V19 to the MGO to cool the MGO to increase the viscosity of the MGO, thereby increasing the viscosity of the MGO in the ship's main engine. Maintain the usable viscosity.

또한, 온도조절밸브(V19)를 통해 인가되는 10℃의 쿨링 청수는 메인엔진 윤활유 쿨러(133)에도 인가되고, 메인엔진 윤활유 쿨러(133)는 온도조절밸브(V19)를 통해 인가되는 10℃인 쿨링 청수의 냉기를 메인엔진 윤활유에 열 교환하여서 메인엔진 윤활유를 냉각시킨다.In addition, the cooling fresh water of 10 ° C applied through the temperature control valve (V19) is also applied to the main engine lubricant cooler 133, the main engine lubricant cooler 133 is 10 ° C applied through the temperature control valve (V19). Cooling Main engine lubricating oil is cooled by exchanging the cool water of fresh water with main engine lubricating oil.

중앙쿨링청수펌프(161)는 메인엔진 윤활유 쿨러(133), 메인엔진 에어쿨러(135) 및 MGO 쿨러(137)에 대한 쿨링 청수의 순환을 담당하는데, 쿨링 청수를 가압하여 온도조절밸브(V19)를 통해 메인엔진 윤활유 쿨러(133), 메인엔진 에어쿨러(135) 및 MGO 쿨러(137)에 송출하고, 이처럼 송출되어 메인엔진 윤활유 쿨러(133), 메인엔진 에어쿨러(135) 및 MGO 쿨러(137)를 거쳐서 되돌아오는 쿨링 청수를 다시 가압하여 온도조절밸브(V19)를 통해 메인엔진 윤활유 쿨러(133), 메인엔진 에어쿨러(135) 및 MGO 쿨러(137)에 송출하는 방식으로 메인엔진 윤활유 쿨러(133), 메인엔진 에어쿨러(135) 및 MGO 쿨러(137)에 대하여 쿨링 청수를 순환시킨다.The central cooling fresh water pump 161 is responsible for circulating cooling fresh water for the main engine lubricating oil cooler 133, the main engine air cooler 135, and the MGO cooler 137, and pressurizes the cooling fresh water to adjust the temperature control valve (V19). Through the main engine lube cooler 133, the main engine air cooler 135 and the MGO cooler 137 is sent out, and so sent to the main engine lube cooler 133, the main engine air cooler 135 and the MGO cooler (137) Pressurizing the cooling fresh water returned through the back to the main engine lubricant cooler by sending it to the main engine lubricant cooler 133, the main engine air cooler 135 and the MGO cooler 137 through the temperature control valve (V19). 133, the main engine air cooler 135 and the MGO cooler 137 circulates the cooling fresh water.

그와 함께, 중앙쿨링청수펌프(161)는 메인엔진 윤활유 쿨러(133), 메인엔진 에어쿨러(135) 및 MGO 쿨러(137)를 거쳐서 되돌아오는 쿨링 청수와, 보조기계류(140)를 거쳐 순환되어 인가되는 쿨링 청수를, 온도조절밸브(V13)을 통해 인가받아서, 해당 쿨링 청수를 가압하여 중앙청수쿨러(171)에 송출한다.At the same time, the central cooling fresh water pump 161 is circulated through the cooling fresh water returned through the main engine lubricating oil cooler 133, the main engine air cooler 135, and the MGO cooler 137, and the auxiliary machinery 140. The applied cooling fresh water is applied through the temperature control valve V13 to pressurize the cooling fresh water and to send it to the central fresh water cooler 171.

보조기계류 쿨링청수펌프(163)는 보조기계류(140)에 대한 36℃ 쿨링 청수의 순환을 담당하는데, 해당 쿨링 청수를 가압하여 보조기계류(140)에 송출하고, 이처럼 송출되어 보조기계류(140)를 거져서 되돌아오는 쿨링 청수를 다시 가압하여 보조기계류(140)에 송출하는 방식으로 보조기계류(140)에 대하여 쿨링 청수를 순환시킨다.Auxiliary machinery cooling fresh water pump 163 is responsible for the circulation of 36 ℃ cooling fresh water for the auxiliary machinery 140, pressurized the cooling fresh water to be sent to the auxiliary machinery 140, and thus sent to the auxiliary machinery 140 The cooling fresh water returned to the base is pressurized again to be discharged to the auxiliary machinery 140, thereby circulating the cooling fresh water with respect to the auxiliary machinery 140.

보조기계류(140)는 스턴 튜브/베어링(stern tube/bearing) 윤활유 쿨러(141), 메인 에어 콤푸레서(143), 에어컨 응축기(145), 증기 응축기(147), 냉장고 응축기(149), 엔진룸 쿨러(151), 발전기 엔진 쿨러(153) 및 터빈 윤활유 쿨러(155)를 포함하며, 보조기계류(140)에 포함된 이들 기계류는 36℃의 쿨링 청수를 공급받아서 해당 쿨링 청수의 냉기를 자체에 인가되는 윤활유, 에어, 냉매 또는 물(water) 등의 열전달 매체에 열 교환함으로써 해당 열전달 매체를 냉각시킨다.The auxiliary machinery 140 includes a stern tube / bearing lubricant cooler 141, a main air compressor 143, an air conditioner condenser 145, a steam condenser 147, a refrigerator condenser 149, and an engine compartment. Cooler 151, generator engine cooler 153 and turbine lubricating oil cooler 155, these machinery included in the auxiliary machinery 140 is supplied with the cooling fresh water of 36 ℃ to apply the cooling air of the cooling fresh water to itself The heat transfer medium is cooled by heat exchange with a heat transfer medium such as lubricating oil, air, refrigerant, or water.

쿨링해수펌프(173)는 해수 유입구(175)를 통해 유입된 해수(sea water)를 가압하여 중앙청수쿨러(171)에 인가한다. 중앙청수쿨러(171)는 중앙쿨링청수펌프(161)로부터 인가되는 쿨링 청수를 냉각시키되, 쿨링해수펌프(173)를 통해 인가되는 해수의 냉기를 쿨링 청수에 열 교환하여서 쿨링 청수를 냉각시킨다. 중앙청수쿨러(171)에서 쿨링 청수의 냉각에 사용된 해수는 배출구(177)를 통해 배출된다.The cooling sea water pump 173 pressurizes sea water introduced through the sea water inlet 175 and applies it to the central fresh water cooler 171. The central fresh water cooler 171 cools the cooling fresh water applied from the central cooling fresh water pump 161, and heats the cold air of the sea water applied through the cooling sea water pump 173 to the cooling fresh water to cool the cooling fresh water. The seawater used for cooling the cooling fresh water in the central fresh water cooler 171 is discharged through the discharge port 177.

온도조절밸브(V19)는 메인엔진 윤활유 쿨러(133), 메인엔진 에어 쿨러(135) 및 MGO 쿨러(137)에 인가되는 쿨링 청수와 보조기계류 쿨링청수펌프(163) 측으로 인가되는 쿨링 청수의 온도를 10℃로 유지하도록 쿨링 청수의 유량을 조절한다.The temperature control valve (V19) is the cooling fresh water applied to the main engine lubricant cooler 133, the main engine air cooler 135 and the MGO cooler 137 and the cooling fresh water applied to the auxiliary machinery cooling fresh water pump 163 side. Adjust the flow of cooling fresh water to keep it at 10 ° C.

온도조절밸브(V19)는 자체 밸브로부터 메인엔진 윤활유 쿨러(133), 메인엔진 에어 쿨러(135) 및 MGO 쿨러(137) 측으로 쿨링 청수가 인가되는 쿨링 청수 배출지점(P1)의 온도에 따라 중앙쿨링청수펌프(161)로부터 인가되는 가열된 쿨링 청수에 중앙청수쿨러(171)로부터의 냉각된 쿨링 청수를 혼합하여 배출함으로써 쿨링 청수 배출지점(P1)의 온도를 10℃로 유지한다.Temperature control valve (V19) is the central cooling in accordance with the temperature of the cooling fresh water discharge point (P1) that the cooling fresh water is applied to the main engine lubricating oil cooler 133, the main engine air cooler 135 and the MGO cooler 137 side from its valve. The temperature of the cooling fresh water discharge point P1 is maintained at 10 ° C. by mixing and discharging the cooled cooling fresh water from the central fresh water cooler 171 to the heated cooling fresh water applied from the fresh water pump 161.

온도조절밸브(V19)는 예를 들어 쿨링 청수 배출지점(P1)을 통해 송출되는 쿨링 청수의 온도가 10℃를 초과하면 중앙쿨링청수펌프(161)로부터 쿨링 청수 배출지점(P1) 측으로 인가되는 가열된 쿨링 청수의 유량을 감소시키고 중앙청수쿨러(171)로부터 쿨링 청수 배출지점(P1)에 인가되는 냉각된 쿨링 청수의 유량을 증가시킴으로써 쿨링 청수 배출지점(P1)을 통해 송출되는 쿨링 청수의 온도를 내려서 10℃로 유지시킨다.For example, the temperature control valve V19 is applied to the cooling fresh water discharge point P1 from the central cooling fresh water pump 161 when the temperature of the cooling fresh water discharged through the cooling fresh water discharge point P1 exceeds 10 ° C. By reducing the flow rate of the cooled cooling fresh water and increasing the flow rate of the cooled cooling fresh water applied to the cooling fresh water discharge point (P1) from the central fresh water cooler (171) to increase the temperature of the cooling fresh water discharged through the cooling fresh water discharge point (P1) Lower to 10 ° C.

또한, 온도조절밸브(V19)는 예를 들어 쿨링 청수 배출지점(P1)을 통해 송출되는 쿨링 청수의 온도가 10℃미만이면 중앙쿨링청수펌프(161)로부터 쿨링 청수 배출지점(P1) 측으로 인가되는 가열된 쿨링 청수의 유량을 증가시키고 중앙청수쿨러(171)로부터 쿨링 청수 배출지점(P1)에 인가되는 냉각된 쿨링 청수의 유량을 감소시킴으로써 쿨링 청수 배출지점(P1)을 통해 송출되는 쿨링 청수의 온도를 올려서 10℃로 유지시킨다.In addition, the temperature control valve V19 is applied to the cooling fresh water discharge point P1 from the central cooling fresh water pump 161 when the temperature of the cooling fresh water discharged through the cooling fresh water discharge point P1 is less than 10 ° C., for example. The temperature of the cooling fresh water discharged through the cooling fresh water discharge point P1 by increasing the flow rate of the heated cooling fresh water and decreasing the flow rate of the cooled cooling fresh water applied from the central fresh water cooler 171 to the cooling fresh water discharge point P1. Raise and hold at 10 ° C.

그리고, 온도조절밸브(V13)는 보조기계류 쿨링청수펌프(163)로부터 보조기계류(140)에 인가되는 쿨링 청수의 온도를 36℃로 유지하도록 보조기계류 쿨링청수펌프(163)에 인가되는 쿨링 청수의 유량을 조절한다.And, the temperature control valve (V13) of the cooling fresh water applied to the auxiliary machinery cooling fresh water pump 163 to maintain the temperature of the cooling fresh water applied to the auxiliary machinery 140 from the auxiliary machinery cooling fresh water pump 163 at 36 ℃. Adjust the flow rate.

온도조절밸브(V13)는 보조기계류 쿨링청수펌프(163)로부터 보조기계류(140)에 쿨링 청수가 송출되는 쿨링 청수 배출지점(P2)을 흐르는 쿨링 청수의 온도에 따라, 보조기계류(140)로부터 중앙쿨링청수펌프(161)에 인가되는 가열된 쿨링 청수의 유량과, 온도조절밸브(V19)로부터 분기 배관(PL1)을 통해 중앙쿨링청수펌프(161)에 인가되는 10℃ 쿨링 청수의 유량을 조절함으로써, 보조기계류 쿨링청수펌프(163)에 인가되는 쿨링 청수의 온도를 36℃로 유지하여서 보조기계류 쿨링청수펌프(163)를 통해 보조기계류(140)에 송출되는 쿨링 청수의 온도를 36℃로 유지한다.Temperature control valve (V13) in accordance with the temperature of the cooling fresh water flowing through the cooling fresh water discharge point (P2) that the cooling fresh water is sent from the auxiliary machinery cooling fresh water pump 163 to the auxiliary machinery 140, the center from the auxiliary machinery 140 By adjusting the flow rate of the heated cooling fresh water applied to the cooling fresh water pump 161 and the flow rate of the 10 ° C cooling fresh water applied to the central cooling fresh water pump 161 through the branch pipe (PL1) from the temperature control valve (V19). Maintain the temperature of the cooling fresh water applied to the auxiliary machinery cooling fresh water pump 163 at 36 ° C. to maintain the temperature of the cooling fresh water sent to the auxiliary machinery 140 through the auxiliary machinery cooling fresh water pump 163. .

온도조절밸브(V13)는 온도조절밸브(V19)로부터 분기 배관(PL1)을 통해 중앙쿨링청수펌프(161)에 인가되는 10℃ 쿨링 청수의 유량을 조절함으로써 온도조절밸브(V19)로부터 분기 배관(PL1)을 통해 보조기계류 쿨링청수펌프(163)에 인가되는 10℃ 쿨링 청수의 유량을 조절할 수 있다. 온도조절밸브(V13)는 온도조절밸브(V19)로부터 분기 배관(PL1)을 통해 중앙쿨링청수펌프(161)에 인가되는 10℃ 쿨링 청수의 유량을 감소시킴으로써 온도조절밸브(V19)로부터 분기 배관(PL1)을 통해 보조기계류 쿨링청수펌프(163)에 인가되는 10℃ 쿨링 청수의 유량을 증가시킬 수 있고, 온도조절밸브(V19)로부터 분기 배관(PL1)을 통해 중앙쿨링청수펌프(161)에 인가되는 10℃ 쿨링 청수의 유량을 증가시킴으로써 온도조절밸브(V19)로부터 분기 배관(PL1)을 통해 보조기계류 쿨링청수펌프(163)에 인가되는 10℃ 쿨링 청수의 유량을 감소시킬 수 있다.The temperature control valve V13 controls the flow rate of 10 ° C. cooling fresh water applied to the central cooling fresh water pump 161 from the temperature control valve V19 to the central cooling fresh water pump 161 through the branch pipe PL1. The flow rate of 10 ° C. cooling fresh water applied to the auxiliary machinery cooling fresh water pump 163 may be adjusted through PL1). Temperature control valve (V13) is branched from the temperature control valve (V19) by reducing the flow rate of 10 ℃ cooling fresh water applied to the central cooling fresh water pump 161 through the branch pipe (PL1) from the temperature control valve (V19). PL1) can increase the flow rate of 10 ℃ cooling fresh water applied to the auxiliary machinery cooling fresh water pump 163, and is applied to the central cooling fresh water pump 161 through the branch pipe (PL1) from the temperature control valve (V19) By increasing the flow rate of the 10 ° C cooling fresh water is reduced the flow rate of 10 ° C cooling fresh water applied to the auxiliary machinery cooling fresh water pump 163 from the temperature control valve (V19) through the branch pipe (PL1).

그리고, 온도조절밸브(V13)는 보조기계류(140)로부터 중앙쿨링청수펌프(161)에 인가되는 가열된 쿨링 청수의 유량을 조절함으로써 보조기계류(140)로부터 분기 배관(PL2)을 통해 보조기계류 쿨링청수펌프(163)에 인가되는 가열된 쿨링 청수의 유량을 조절할 수 있다. 온도조절밸브(V13)는 보조기계류(140)로부터 중앙쿨링청수펌프(161)에 인가되는 가열된 쿨링 청수의 유량을 증가시킴으로써 보조기계류(140)로부터 분기 배관(PL2)을 통해 보조기계류 쿨링청수펌프(163)에 인가되는 가열된 쿨링 청수의 유량을 감소시키며, 보조기계류(140)로부터 중앙쿨링청수펌프(161)에 인가되는 가열된 쿨링 청수의 유량을 감소시킴으로써 보조기계류(140)로부터 분기 배관(PL2)을 통해 보조기계류 쿨링청수펌프(163)에 인가되는 가열된 쿨링 청수의 유량을 증가시킨다.And, the temperature control valve (V13) is controlled by the auxiliary machinery through the branch pipe (PL2) from the auxiliary machinery 140 by adjusting the flow rate of the heated cooling fresh water applied to the central cooling fresh water pump 161 from the auxiliary machinery (140) The flow rate of the heated cooling fresh water applied to the fresh water pump 163 may be adjusted. Temperature control valve (V13) is the auxiliary machinery cooling fresh water pump through the branch pipe (PL2) from the auxiliary machinery 140 by increasing the flow rate of the heated cooling fresh water applied to the central cooling fresh water pump 161 from the auxiliary machinery (140) A branch pipe from the auxiliary machinery 140 may be reduced by reducing the flow rate of the heated cooling fresh water applied to the 163 and reducing the flow rate of the heated cooling fresh water applied to the central cooling fresh water pump 161 from the auxiliary machinery 140. PL2) increases the flow rate of the heated cooling fresh water applied to the auxiliary machinery cooling fresh water pump 163.

이처럼 온도조절밸브(V13)는 보조기계류 쿨링청수펌프(163)로부터 보조기계류(140)에 쿨링 청수가 인가되는 쿨링 청수 배출지점(P2)을 흐르는 쿨링 청수의 온도에 따라 보조기계류(140)로부터 분기 배관(PL2)을 통해 보조기계류 쿨링청수펌프(163)에 인가되는 가열된 쿨링 청수의 유량과, 온도조절밸브(V19)로부터 분기 배관(PL1)을 통해 보조기계류 쿨링청수펌프(163)에 인가되는 10℃ 쿨링 청수의 유량을 조절함으로써, 보조기계류 쿨링청수펌프(163)로부터 쿨링 청수가 배출되는 쿨링 청수 배출지점(P2)을 흐르는 쿨링 청수의 온도를 36℃로 유지한다.As such, the temperature control valve V13 branches from the auxiliary machinery 140 according to the temperature of the cooling fresh water flowing from the auxiliary machinery cooling fresh water pump 163 to the cooling fresh water discharge point P2 to which the cooling fresh water is applied to the auxiliary machinery 140. Flow rate of the heated cooling fresh water applied to the auxiliary machinery cooling fresh water pump 163 through the pipe PL2, and is applied to the auxiliary machinery cooling fresh water pump 163 through the branch pipe PL1 from the temperature control valve V19. By controlling the flow rate of the 10 ° C cooling fresh water, the temperature of the cooling fresh water flowing through the cooling fresh water discharge point P2 from which the cooling fresh water is discharged from the auxiliary machinery cooling fresh water pump 163 is maintained at 36 ° C.

온도조절밸브(V13)는 예를 들어 쿨링 청수 배출지점(P2)을 통해 송출되는 쿨링 청수의 온도가 36℃를 초과하면 보조기계류(140)로부터 분기 배관(PL2)을 통해 보조기계류 쿨링청수펌프(163) 측으로 인가되는 가열된 쿨링 청수의 유량을 감소시키고 온도조절밸브(V19)로부터 분기 배관(PL1)을 통해 보조기계류 쿨링청수펌프(163)에 인가되는 10℃ 쿨링 청수의 유량을 증가시킴으로써 보조기계류 쿨링청수펌프(163)로부터 쿨링 청수 배출지점(P2)을 통해 송출되는 쿨링 청수의 온도를 내려서 36℃로 유지시킨다.Temperature control valve (V13), for example, if the temperature of the cooling fresh water discharged through the cooling fresh water discharge point (P2) exceeds 36 ℃ the auxiliary machinery cooling fresh water pump through the branch pipe (PL2) from the auxiliary machinery 140 ( 163) by reducing the flow rate of the heated cooling fresh water applied to the side and increasing the flow rate of the 10 ° C. cooling fresh water applied to the auxiliary machinery cooling fresh water pump 163 from the temperature control valve V19 through the branch pipe PL1. The temperature of the cooling fresh water discharged from the cooling fresh water pump 163 through the cooling fresh water discharge point P2 is lowered and maintained at 36 ° C.

또한, 온도조절밸브(V13)는 예를 들어 쿨링 청수 배출지점(P2)을 통해 송출되는 쿨링 청수의 온도가 36℃미만이면 보조기계류(140)로부터 분기 배관(PL2)을 통해 보조기계류 쿨링청수펌프(163) 측으로 인가되는 가열된 쿨링 청수의 유량을 증가시키고 온도조절밸브(V19)로부터 분기 배관(PL1)을 통해 보조기계류 쿨링청수펌프(163)에 인가되는 10℃ 쿨링 청수의 유량을 감소시킴으로써 보조기계류 쿨링청수펌프(163)로부터 쿨링 청수 배출지점(P2)을 통해 송출되는 쿨링 청수의 온도를 올려서 36℃로 유지시킨다.In addition, the temperature control valve (V13) is, for example, if the temperature of the cooling fresh water discharged through the cooling fresh water discharge point (P2) is less than 36 ℃ the auxiliary machinery cooling fresh water pump through the branch pipe (PL2) from the auxiliary machinery 140 By increasing the flow rate of the heated cooling fresh water applied to the (163) side and reducing the flow rate of the 10 ° C cooling fresh water applied to the auxiliary machinery cooling fresh water pump 163 through the branch pipe (PL1) from the temperature control valve (V19) The temperature of the cooling fresh water sent out from the machinery cooling fresh water pump 163 through the cooling fresh water discharge point P2 is maintained at 36 ° C.

온도조절밸브(V13),(V19)는 통상적인 온도조절밸브를 적용할 수 있는데, 쿨링 청수 배출지점(P1),(P2)의 온도에 따라 밸브에 의해 유량을 조절할 수 있는 다양한 통상의 온도조절밸브를 적용할 수 있으므로, 온도조절밸브(V13),(V19)의 구조에 대한 설명은 생략하기로 한다.Temperature control valves (V13), (V19) can be applied to a conventional temperature control valve, a variety of conventional temperature control that can control the flow rate by the valve according to the temperature of the cooling fresh water discharge point (P1), (P2) Since the valve can be applied, description of the structure of the temperature control valve (V13), (V19) will be omitted.

온도조절밸브(V19)로부터 중앙쿨링청수펌프(161) 측으로 쿨링 청수를 우회시키는 분기 배관(PL3)에는 밸브(V15)가 설치되어 있는데, 해당 밸브(V15)는 중앙쿨링청수펌프(161)로부터 온도조절밸브(V19)를 통해 송출되는 쿨링 청수의 송출압력을 초기에 고정 설정하기 위한 것이다.The valve V15 is installed in the branch pipe PL3 that bypasses the cooling fresh water from the temperature control valve V19 to the central cooling fresh water pump 161, and the valve V15 has a temperature from the central cooling fresh water pump 161. It is to initially set the discharge pressure of the cooling fresh water discharged through the control valve (V19).

또한, 보조기계류(140)로부터의 쿨링 청구를 보조기계류 쿨링청수펌프(163)에 인가하는 분기 배관(PL2)에는 밸브(V17)가 설치되어 있으며, 해당 밸브(V17)는 분기 배관(PL2)을 통해 보조기계류 쿨링청수펌프(163)에 인가되는 쿨링 청수의 송출압력을 초기에 고정 설정하기 위한 것이다.In addition, a valve V17 is installed in the branch pipe PL2 that applies the cooling request from the auxiliary machinery 140 to the auxiliary machine cooling fresh water pump 163, and the valve V17 connects the branch pipe PL2. It is to initially set the discharge pressure of the cooling fresh water applied to the auxiliary machinery cooling fresh water pump 163 through.

한편, 메인엔진 윤활유 쿨러(133), 메인엔진 에어 쿨러(135) 및 MGO 쿨러(137)에 대하여 쿨링 청수를 순환시키는 배관 경로에는 저온청수팽창탱크(131)가 설치되어 배관수의 온도변화에 따른 팽창, 수축시 배관 내의 압력을 흡수하여 배관 파열 또는 누수를 방지한다.Meanwhile, a low temperature fresh water expansion tank 131 is installed in a pipe path for circulating cooling fresh water for the main engine lubricant cooler 133, the main engine air cooler 135, and the MGO cooler 137. Absorption of pressure in the pipe during expansion and contraction prevents pipe rupture or leakage.

아울러, 메인엔진 윤활유 쿨러(133), 메인엔진 에어 쿨러(135) 및 MGO 쿨러(137)에 대하여 쿨링 청수를 순환시키는 배관 경로에는 메인엔진 자켓 청수쿨러(120)가 설치되는데, 메인엔진 자켓 청수쿨러(120)는 메인엔진 윤활유 쿨러(133)를 통해 공급된 쿨링 청수의 냉기를 메인엔진 자켓 쿨러(111)로부터의 쿨링 청수에 열 교환함으로써 메인엔진 자켓 쿨러(111)로부터의 쿨링 청수를 냉각시키며, 메인엔진 자켓 청수쿨러(120)에서 사용된 쿨링 청수는 중앙쿨링청수펌프(161)에 인가된다.In addition, the main engine jacket fresh water cooler 120 is installed in the piping path for circulating the cooling fresh water for the main engine lubricant cooler 133, the main engine air cooler 135, and the MGO cooler 137. The main engine jacket fresh water cooler is installed. The heat exchanger 120 cools the cooling fresh water from the main engine jacket cooler 111 by exchanging heat of the cooling fresh water supplied through the main engine lubricant cooler 133 to the cooling fresh water from the main engine jacket cooler 111. The cooling fresh water used in the main engine jacket fresh water cooler 120 is applied to the central cooling fresh water pump 161.

조수기(fresh water generator)(119)는 쿨링용 청수를 만들어 보충한다. 온도조절밸브(V11)는 쿨링 청수 배출지점(P3)의 온도에 따라 엔진자켓청수쿨러(120)로부터 인가되는 쿨링 청수의 유량과 메인엔진 자켓 쿨러(111)로부터 인가되는 가열된 쿨링 청수의 유량을 조절함으로써 자켓쿨링청수펌프(115)로부터 메인엔진 자켓 쿨러(111)에 인가되는 쿨링 청수의 온도를 설정 온도로 유지한다. 자켓쿨링청수펌프(115)는 온도조절밸브(V11)로부터 인가되는 쿨링 청수를 가압하여 메인엔진 자켓 예열기(113)와 메인엔진 자켓 쿨러(111) 측에 송출한다. 온도조절밸브(V17)는 쿨링 청수 배출지점(P3)의 온도에 따라 밸브에 의해 유량을 조절할 수 있는 다양한 온도조절밸브를 적용할 수 있으므로, 온도조절밸브(V17)의 구조에 대한 설명은 생략하기로 한다.A fresh water generator 119 makes and replenishes fresh water for cooling. The temperature control valve V11 measures the flow rate of the cooling fresh water applied from the engine jacket fresh water cooler 120 and the flow rate of the heated cooling fresh water applied from the main engine jacket cooler 111 according to the temperature of the cooling fresh water discharge point P3. By adjusting the temperature of the cooling fresh water applied from the jacket cooling fresh water pump 115 to the main engine jacket cooler 111 is maintained at the set temperature. The jacket cooling fresh water pump 115 pressurizes the cooling fresh water applied from the temperature control valve V11 and sends it to the main engine jacket preheater 113 and the main engine jacket cooler 111. Temperature control valve (V17) can be applied to a variety of temperature control valve that can adjust the flow rate by the valve according to the temperature of the cooling fresh water discharge point (P3), the description of the structure of the temperature control valve (V17) will be omitted Shall be.

또한, 메인엔진 자켓 쿨러(111), 메인엔진 자켓 예열기(113), 자켓쿨링청수펌프(115), 메인엔진 자켓 청수쿨러(120), 온도조절밸브(V11) 및 메인엔진 자켓 청수 쿨러(120)를 연결하여 형성되는 폐루프 배관에는 고온청수팽창탱크(117)가 설치되며, 고온청수팽창탱크(117)는 배관수의 온도변화에 따른 팽창, 수축시 배관 내의 압력을 흡수하여 배관 파열 또는 누수를 방지한다.In addition, the main engine jacket cooler 111, the main engine jacket preheater 113, the jacket cooling fresh water pump 115, the main engine jacket fresh water cooler 120, the temperature control valve (V11) and the main engine jacket fresh water cooler (120) The closed loop pipe formed by connecting the high temperature fresh water expansion tank 117 is installed, and the high temperature fresh water expansion tank 117 absorbs the pressure in the pipe during expansion and contraction according to the temperature change of the pipe water to prevent pipe rupture or leakage. prevent.

상술한 바와 같은 기능을 구비하는 본 발명에 따른 선박에서의 MGO 냉각 시스템은 MGO 쿨러(137)에 의해 MGO를 냉각시켜서 MGO의 점도를 메인엔진에서 사용 가능한 점도로 유지하는 경우 다음과 같이 작용한다.The MGO cooling system in a ship according to the present invention having the function as described above acts as follows when the MGO is cooled by the MGO cooler 137 to maintain the viscosity of the MGO at a viscosity usable in the main engine.

중앙쿨링청수펌프(161)는 메인엔진 윤활유 쿨러(133), 메인엔진 에어 쿨러(135) 및 MGO 쿨러(137)에 대하여 쿨링 청수를 가압하여 순환시킨다.The central cooling fresh water pump 161 pressurizes and cools the cooling fresh water to the main engine lubricating oil cooler 133, the main engine air cooler 135, and the MGO cooler 137.

이때, 온도조절밸브(V19)는 자체 밸브로부터 메인엔진 윤활유 쿨러(133), 메인엔진 에어 쿨러(135) 및 MGO 쿨러(137) 측으로 쿨링 청수가 인가되는 쿨링 청수 배출지점(P1)의 온도에 따라 중앙쿨링청수펌프(161)로부터 인가되는 가열된 쿨링 청수에 중앙청수쿨러(171)로부터의 냉각된 쿨링 청수를 혼합하여 배출함으로써 쿨링 청수 배출지점(P1)의 온도를 10℃로 유지한다.At this time, the temperature control valve (V19) is in accordance with the temperature of the cooling fresh water discharge point (P1) that the cooling fresh water is applied to the main engine lubricating oil cooler 133, the main engine air cooler 135 and the MGO cooler 137 side from its own valve. The temperature of the cooling fresh water discharge point P1 is maintained at 10 ° C. by mixing and discharging the cooled cooling fresh water from the central fresh water cooler 171 with the heated cooling fresh water applied from the central cooling fresh water pump 161.

예를 들어, 쿨링 청수 배출지점(P1)을 통해 송출되는 쿨링 청수의 온도가 10℃를 초과하면, 온도조절밸브(V19)는 중앙쿨링청수펌프(161)로부터 쿨링 청수 배출지점(P1) 측으로 인가되는 가열된 쿨링 청수의 유량을 감소시키고 중앙청수쿨러(171)로부터 쿨링 청수 배출지점(P1)에 인가되는 냉각된 쿨링 청수의 유량을 증가시킴으로써, 쿨링 청수 배출지점(P1)을 통해 송출되는 쿨링 청수의 온도를 내려서 10℃로 유지시킨다.For example, when the temperature of the cooling fresh water discharged through the cooling fresh water discharge point P1 exceeds 10 ° C., the temperature control valve V19 is applied to the cooling fresh water discharge point P1 from the central cooling fresh water pump 161. Cooling fresh water sent out through the cooling fresh water discharge point (P1) by reducing the flow rate of the heated cooling fresh water being reduced and increasing the flow rate of the cooled cooling fresh water applied from the central fresh water cooler (171) to the cooling fresh water discharge point (P1). Lower the temperature of and keep at 10 ℃.

예를 들어, 쿨링 청수 배출지점(P1)을 통해 송출되는 쿨링 청수의 온도가 10℃미만이면, 온도조절밸브(V19)는 중앙쿨링청수펌프(161)로부터 쿨링 청수 배출지점(P1) 측으로 인가되는 가열된 쿨링 청수의 유량을 증가시키고 중앙청수쿨러(171)로부터 쿨링 청수 배출지점(P1)에 인가되는 냉각된 쿨링 청수의 유량을 감소시킴으로써, 쿨링 청수 배출지점(P1)을 통해 송출되는 쿨링 청수의 온도를 올려서 10℃로 유지시킨다.For example, when the cooling fresh water discharged through the cooling fresh water discharge point P1 is less than 10 ° C., the temperature control valve V19 is applied to the cooling fresh water discharge point P1 from the central cooling fresh water pump 161. By increasing the flow rate of the heated cooling fresh water and reducing the flow rate of the cooled cooling fresh water applied to the cooling fresh water discharge point (P1) from the central fresh water cooler (171), the cooling fresh water discharged through the cooling fresh water discharge point (P1) The temperature is raised and maintained at 10 ° C.

이에, MGO 쿨러(137)는 온도조절밸브(V19)를 통해 인가되는 10℃ 쿨링 청수의 냉기를 MGO에 열 교환하여 MGO를 냉각시킴으로써 NGO의 점도를 높여 선박 메인엔진에서 사용가능한 점도로 유지할 수 있다.Accordingly, the MGO cooler 137 heat exchanges cold water of 10 ° C. cooling fresh water applied through the temperature control valve V19 to the MGO to cool the MGO, thereby maintaining the viscosity of the NGO to be usable in the ship main engine. .

한편, 보조기계류(140)에 대해서는 보조기계류 쿨링청수펌프(163)에 의해 36℃의 쿨링 청수를 가압하여 순환시킴으로써 보조기계류(140)에 36℃의 쿨링 청수를 공급하여 해당 쿨링 청수의 냉기를 열 교환시키게 된다. 이에 대한 설명은 상술한 바와 같으므로 생략하기로 한다.On the other hand, for the auxiliary machinery 140 by supplying the cooling fresh water of 36 ℃ to the auxiliary machinery 140 by pressurizing and circulating the cooling fresh water of 36 ℃ by the auxiliary machinery cooling fresh water pump 163 to heat the cold air of the cooling fresh water. Exchanged. The description thereof is as described above and will be omitted.

이상 설명한 바와 같이, 본 발명은 선박에서 MGO를 엔진 연료로서 사용하고자는 경우 MGO를 냉각시켜 MGO의 점도를 엔진 사용 가능 점도로 높여주되, 쿨링 청수에 의해 열 교환하여 냉각 작용하는 MGO 쿨러(137)를 이용하여 MGO를 냉각시킴으로써 별도의 냉매에 의해 MGO를 냉각시키는 고가의 칠러를 사용하지 않고서도 MGO를 냉각시키므로, MGO를 경제성 있게 냉각시킬 수 있다.As described above, in the present invention, when the MGO is to be used as an engine fuel in a ship, the MGO is cooled to increase the viscosity of the MGO to an engine usable viscosity, and the MGO cooler 137 is cooled by heat exchange by cooling fresh water. By cooling the MGO by using the cooling of the MGO without using an expensive chiller to cool the MGO by a separate refrigerant, it is possible to economically cool the MGO.

본 발명은 상술한 설명에 한정되는 것은 아니고, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면, 본 발명을 여러 가지 형태로 변경하여 실시할 수 있을 것이며, 그러한 변경 실시는 본 발명의 기술적 범위에 해당된다고 할 것이다.The present invention is not limited to the above description, and those of ordinary skill in the art will be able to implement the present invention in various forms, and such modifications can be implemented by the technical features of the present invention. It is said to be a range.

본 발명은 선박에서 MGO를 메인엔진의 연료로 사용하는 경우에 매우 유용하게 적용할 수 있을 것이다. 본 발명에 의하면, 선박에서 MGO를 엔진 연료로서 사용하고자는 경우 MGO를 냉각시켜 MGO의 점도를 엔진 사용 가능 점도로 높여주되, 쿨링 청수에 의해 열 교환하여 냉각 작용하는 쿨러를 이용하여 MGO를 냉각시킴으로써 별도의 냉매에 의해 MGO를 냉각시키는 고가의 칠러를 사용하지 않고서도 MGO를 냉각시키므로, MGO를 경제성 있게 냉각시키게 된다.The present invention can be very usefully applied in the case of using MGO as a fuel of a main engine in a ship. According to the present invention, in the case of using MGO as an engine fuel in a ship, the MGO is cooled to increase the viscosity of the MGO to an engine usable viscosity, but by cooling the MGO using a cooler that exchanges heat by cooling fresh water. Since the MGO is cooled without using an expensive chiller that cools the MGO by a separate refrigerant, the MGO is economically cooled.

111; 메인엔진 자켓쿨러 113; 메인엔진 자켓 예열기
117; 고온청수팽창탱크 119; 조수기
120; 메인엔진 자켓 청수쿨러 131; 저온청수팽창탱크
133; 메인엔진 윤활유 쿨러 135; 메인엔진 에어 쿨러
137; MGO 쿨러 140; 보조기계류
161; 중앙쿨링청수펌프 163; 보조기계류 쿨링청수펌프
171; 중앙청수쿨러 173; 쿨링해수펌프
175; 해수 유입구 177; 배출구
V11, V13, V19; 온도조절밸브 V15, V17; 밸브
P1, P2, P3; 쿨링 청수 배출지점 PL1, PL2, PL3; 분기 배관111; Main engine jacket cooler 113; Main engine jacket preheater
117; High temperature fresh water expansion tank 119; High season
120; Main Engine Jacket Fresh Water Cooler 131; Low Temperature Fresh Water Expansion Tank
133; Main engine lubricant cooler 135; Main Engine Air Cooler
137; MGO cooler 140; Auxiliary Machinery
161; Central cooling fresh water pump 163; Auxiliary Machinery Cooling Water Pump
171; Central fresh water cooler 173; Cooling Sea Pump
175; Seawater inlet 177; outlet
V11, V13, V19; Temperature control valves V15 and V17; valve
P1, P2, P3; Cooling fresh water discharge points PL1, PL2, PL3; Branch piping

Claims (3)

선박 메인엔진의 연료로 사용하기 위한 MGO(Marine Gas Oil)를 냉각시켜 MGO의 점도를 메인엔진에서 사용 가능한 점도로 유지시키는 선박에서의 MGO 냉각 시스템으로서,
설정 온도의 쿨링 청수를 순환시키는 배관라인에 설치되어 상기 쿨링 청수의 냉기를 MGO에 열 교환하여 MGO를 냉각시키는 MGO 쿨러(137)와;
상기 MGO 쿨러(137)에 대하여 설정 온도의 쿨링 청수를 가압하여 순환시키는 쿨링청수펌프(161)와;
상기 MGO 쿨러(137)를 거쳐서 상기 쿨링청수펌프(161)를 통해 인가되는 쿨링 청수를 해수에 의해 냉각시키는 청수쿨러(171)와;
설정된 쿨링 청수 배출지점(P1)을 통과하는 쿨링 청수의 온도에 따라, 상기 쿨링청수펌프(161)로부터 쿨링 청수 배출지점(P1)에 인가되는 쿨링 청수의 유량과, 상기 청수쿨러(171)로부터 쿨링 청수 배출지점(P1)에 인가되는 냉각된 쿨링 청수의 유량을 조절하여서, 쿨링 청수 배출지점(P1)을 통해 상기 MGO 쿨러(137)에 송출되는 쿨링 청수의 온도를 상기 설정 온도로 유지하는 제1온도조절밸브(V19)를 포함하며,
쿨링 청수를 공급 받아 열교환한 후 배수하는 보조기계(140)와,
쿨링청수펌프에서 쿨링 청수 배출지점(P1)까지의 배관라인에서 분기되어 보조기계(140)에서 쿨링청수펌프(161)로 연장된 배관라인에 합류하는 분기 배관(PL1)과,
분기 배관(PL1)의 쿨링청수를 보조기계(140)로 공급하는 보조기계쿨링청수펌프(163)와,
분기 배관(PL1)이 합류되는 지점에 설치되어 보조기계(140)에서 쿨링청수펌프(161)로 순환하는 쿨링청수의 유량과 분기 배관(PL1)을 통해 쿨링청수펌프(161)로 순환하는 쿨링청수의 유량을 조절하여 보조기계(140)로 공급되는 쿨링 청수의 온도를 설정 온도로 유지하는 제2온도조절밸브(V13)를 더 포함하는 것을 특징으로 하는 선박에서의 MGO 냉각 시스템.
MGO cooling system in ships that maintains the viscosity of MGO (Mine Gas Oil) for use as fuel of the ship's main engine and maintains the viscosity of MGO at the viscosity that can be used in the main engine.
An MGO cooler 137 installed in a pipe line for circulating cooling fresh water at a predetermined temperature to heat exchange cold air of the cooling fresh water with MGO to cool the MGO;
A cooling fresh water pump 161 for pressurizing and circulating the cooling fresh water at a predetermined temperature with respect to the MGO cooler 137;
Fresh water cooler 171 for cooling the cooling fresh water applied through the cooling fresh water pump 161 through the MGO cooler 137 by sea water;
According to the temperature of the cooling fresh water passing through the set cooling fresh water discharge point (P1), the flow rate of the cooling fresh water applied to the cooling fresh water discharge point (P1) from the cooling fresh water pump 161, and cooling from the fresh water cooler (171) By adjusting the flow rate of the cooled cooling fresh water applied to the fresh water discharge point (P1), the first to maintain the temperature of the cooling fresh water sent to the MGO cooler 137 through the cooling fresh water discharge point (P1) to the set temperature It includes a temperature control valve (V19),
Auxiliary machine 140 for draining after receiving heat exchanged cooling water,
Branch piping (PL1) branched from the cooling line from the cooling fresh water pump to the cooling fresh water discharge point (P1) and joined to the piping line extending from the auxiliary machine (140) to the cooling fresh water pump (161),
An auxiliary machine cooling fresh water pump 163 for supplying cooling fresh water of the branch pipe PL1 to the auxiliary machine 140;
Cooling fresh water circulated to the cooling fresh water pump 161 through the branch pipe (PL1) and the flow rate of the cooling fresh water installed at the point where the branch pipe (PL1) is joined and circulated from the auxiliary machine 140 to the cooling fresh water pump (161). MGO cooling system in a ship, characterized in that it further comprises a second temperature control valve (V13) to maintain the temperature of the cooling fresh water supplied to the auxiliary machine 140 by adjusting the flow rate of the set temperature.
제1항에 있어서,
상기 청수쿨러에 해수를 인가하는 쿨링해수펌프(173)를 더 포함하는 것을 특징으로 하는 선박에서의 MGO 냉각 시스템.
The method of claim 1,
Cooling sea water pump (173) for applying the seawater to the fresh water cooler, MGO cooling system in a ship characterized in that it further comprises.
제1항에 있어서,
상기 MGO 쿨러에 대해 상기 설정 온도의 쿨링 해수를 순환시키는 배관에 설치되어 온도 변화에 따라 발생하는 배관수의 압력을 흡수하는 청수팽창탱크(131)를 더 포함하는 것을 특징으로 하는 선박에서의 MGO 냉각 시스템.The method of claim 1,
MGO cooling in the ship further comprises a fresh water expansion tank 131 is installed in the pipe for circulating the cooling sea water of the set temperature with respect to the MGO cooler to absorb the pressure of the pipe water generated in accordance with the temperature change system.
KR1020160032029A 2016-03-17 2016-03-17 Marine Gas Oil Cooling System in Vessel KR102047582B1 (en)

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