KR101527152B1 - Engine system for oil tank ship - Google Patents

Engine system for oil tank ship Download PDF

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Publication number
KR101527152B1
KR101527152B1 KR1020140034623A KR20140034623A KR101527152B1 KR 101527152 B1 KR101527152 B1 KR 101527152B1 KR 1020140034623 A KR1020140034623 A KR 1020140034623A KR 20140034623 A KR20140034623 A KR 20140034623A KR 101527152 B1 KR101527152 B1 KR 101527152B1
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South Korea
Prior art keywords
crude oil
liquid fuel
tank
evaporation gas
oil
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KR1020140034623A
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Korean (ko)
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박성영
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공주대학교 산학협력단
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    • 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
    • F02M33/00—Other apparatus for treating combustion-air, fuel or fuel-air mixture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • 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
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • 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
    • Y02T10/12—Improving ICE efficiencies

Abstract

Disclosed is an engine system for an oil tank ship which includes an oil storing tank. The engine system for an oil tank ship comprises: a ship liquid fuel tank which stores liquid fuel for a ship; an oil evaporation gas discharging line connected with an upper part of the oil storing tank, discharging oil evaporation gas generated from the oil tank during sailing of the oil tank ship outside the oil storing tank; a gas nanobubble generating means which generates nanobubbles from the oil evaporation gas discharged through the discharging line of the oil evaporation gas, to supply the nanobubbles to the ship liquid fuel tank; and a pumping means supplying the ship liquid fuel wherein the oil evaporation gas coexists as nanobubbles from the ship liquid fuel tank to the engine of the oil tank ship. According to the present invention, environmental pollution caused by discharging oil evaporation gas to the atmosphere may be reduced. Also, the oil evaporation gas is used to operate the oil tank ship, thereby remarkably reducing fuel costs.

Description

원유 수송선의 엔진시스템{ENGINE SYSTEM FOR OIL TANK SHIP}[0001] ENGINE SYSTEM FOR OIL TANK SHIP [0002]

본 발명은 원유 수송선의 엔진시스템에 관한 것으로서, 더 상세하게는, 원유를 원유저장탱크에 저장하여 수송하는 원유 수송선에서 원유 수송 중 발생하는 원유증발가스를 나노버블 상태로 만들어 이를 선박용 액체 연료와 함께 효과적으로 엔진 연소에 이용하는 원유 수송선의 엔진시스템에 관한 것이다.The present invention relates to an engine system of a crude oil transportation line, and more particularly, to an engine system of a crude oil transportation line, in which crude oil is stored in a crude oil storage tank and transported, To an engine system of a crude oil transportation line which is effectively used for engine combustion.

원유수송선은 원유를 화물창(이하, "원유저장탱크"라 함)에 싣고 바다를 운항하여 육상 소요처에 원유를 하역하기 위한 선박이다. 일반적으로, 이러한 원유수송선은 운항 중 온도 상승에 의해 원유증발가스, 더 구체적으로는, 휘발성유기화합물(VOC; Volatile Organic Compound)이 증발하여 원유저장탱크의 압력을 상승시킨다.A crude oil carrier is a vessel for loading crude oil into a cargo hold (hereinafter referred to as "crude oil storage tank" Generally, crude oil transportation gas evaporates the crude oil evaporative gas, more specifically, the volatile organic compound (VOC) due to temperature rise during the operation, thereby raising the pressure of the crude oil storage tank.

원유증발가스에 의한 원유저장탱크의 압력 상승은 원유저장탱크에 구조적인 손상을 줄 수 있다. 따라서, 원유증발가스의 발생에도 불구하고 원유저장탱크 내 압력을 일정하게 유지시키는 것이 필요한다.Rising pressure of crude oil storage tanks due to crude oil vapor can cause structural damage to crude oil storage tanks. Therefore, it is necessary to keep the pressure in the crude oil storage tank constant despite the generation of the crude oil evaporation gas.

이에 따라, 복수의 셀로 구획되어 원유저장탱크의 상부에 원유증발가스 배출라인을 설치하여 상기 원유저장탱크 내 압력에 따라 원유증발가스 배출라인을 통해 원유증발가스를 배출한다. 이를 위해, 원유증발가스 배출라인에는 원유저장탱크 내 압력에 따라 제어되는 P/V 밸브가 설치된다.Accordingly, a crude oil evaporation gas discharge line is provided in the upper part of the crude oil storage tank divided by a plurality of cells to discharge the crude oil evaporation gas through the crude oil evaporation gas discharge line according to the pressure in the crude oil storage tank. To this end, the crude oil evaporation gas discharge line is provided with a P / V valve controlled by the pressure in the crude oil storage tank.

원유증발가스는 그대로 대기중에 방출되거나 또는 소각되어 대기중으로 방출된다. 이는 원유량 감소에 따른 경제적 손실과 환경 오염의 문제를 낳는다. 따라서, 원유수송선 운항 중 원유수송선 내에서 원유증발가스를 활용하는 기술의 필요성이 당해기술분야에 존재한다.The crude oil evaporated gas is either released into the atmosphere or is burned and released into the atmosphere. This results in economic loss due to the decrease in the amount of oil and environmental pollution. Thus, there is a need in the art for techniques to utilize crude oil vapor within crude oil transit lines during crude oil transit operations.

한국특허공개번호 제10-2010-0065817호(공개일자 2010년06월17일)Korean Patent Publication No. 10-2010-0065817 (published on June 17, 2010)

본 발명이 해결하고자 하는 과제는,원유수송선의 원유저장탱크에서 증발(기화)되는 VOC, 즉, 원유증발가스를 나노버블 발생기에 통과시켜, 선박용 액체 연료(특히, H.F.O)에 나노버블 형태로 존재하게 하고, 나노버블 형태의 원유증발가스가 포함된 선박용 액체 연료를 엔진에 공급하여 연소시킴으로써, 원유증발가스의 대기 방출에 따른 환경오염을 줄이고 버려지는 원유증발가스를 원유수송선의 운전에 이용함으로써 연료비를 크게 절감할 수 있는 원유수송선의 엔진시스템을 제공하는 것이다.A problem to be solved by the present invention is to provide a method of producing a nano bubble by vaporizing (vaporizing) VOC (crude vaporized gas) in a crude oil storage tank of a crude oil transportation line, And the marine liquid fuel containing the crude oil evaporation gas in the form of nano bubbles is supplied to the engine and combusted to reduce the environmental pollution caused by the release of the crude oil evaporation gas to the atmosphere and to use the crude oil evaporation gas for the operation of the crude oil transportation line, The present invention provides an engine system of a crude oil transportation line which can greatly reduce the oil consumption.

본 발명의 일측면에 따라 원유저장탱크를 포함하는 원유수송선의 엔진시스템이 제공되며, 상기 원유수송선의 엔진시스템은, 선박용 액체 연료가 저장되는 선박용 액체 연료 탱크와; 상기 원유저장탱크 상부에 연결된 채 상기 원유수송선의 운항 중 상기 원유저장탱크에서 발생하는 원유증발가스를 상기 원유저장탱크의 외부로 배출하는 원유증발가스 배출라인과; 상기 원유증발가스 배출라인을 통해 나온 원유증발가스를 나노버블 상태로 만들어 상기 선박용 액체 연료 탱크 내로 공급하는 가스 나노버블 발생수단과; 상기 원유증발가스가 나노버블 형태로 공존하는 상기 선박용 액체 연료를 상기 선박용 액체 연료 탱크로부터 상기 원유수송선의 엔진으로 공급하는 펌핑수단을 포함한다.According to an aspect of the present invention, there is provided an engine system for a crude oil transportation line including a crude oil storage tank, wherein the engine system of the crude oil transportation line includes: a marine liquid fuel tank storing marine liquid fuel; A crude oil evaporation gas discharge line connected to an upper portion of the crude oil storage tank and discharging crude oil evaporation gas generated from the crude oil storage tank during operation of the crude oil transportation tank to the outside of the crude oil storage tank; Gas nano bubble generating means for bringing the crude oil evaporation gas from the crude oil evaporative gas discharge line into a nano bubble state and supplying it into the marine liquid fuel tank; And pumping means for supplying the marine liquid fuel in which the crude oil evaporation gas exists in the form of nano bubbles from the marine liquid fuel tank to the engine of the crude oil transportation line.

일 실시예에 따라, 상기 가스 나노버블 발생수단은, 상기 선박용 액체 연료 탱크를 경유하며 상기 원유증발가스 배출라인과 연결된 순환라인과, 상기 순환라인에 설치되는 순환펌프와, 상기 선박용 액체 연료 내에 존재하면서 상기 순환라인을 순환하는 상기 원유증발가스를 나노버블 형태로 만드는 나노버블 발생기를 포함한다.According to one embodiment, the gas nano bubble generating means includes a circulation line connected to the crude oil evaporative gas discharge line via the marine liquid fuel tank, a circulation pump installed in the circulation line, And a nano bubble generator for converting the crude oil evaporation gas circulating through the circulation line into a nano bubble shape.

일 실시예에 따라, 상기 펌핑수단은 상기 선박용 액체 연료 탱크 내에 설치된 저압펌프와, 상기 선박용 액체 연료 탱크 외부에서 상기 저압펌프와 상기 엔진 사이에 설치된 고압펌프를 포함한다.According to one embodiment, the pumping means includes a low-pressure pump installed in the ship's liquid fuel tank and a high-pressure pump installed between the low-pressure pump and the engine outside the ship's liquid fuel tank.

일 실시예에 따라, 상기 나노버블 발생기는 에어제트 방식, 캐비테이션 방식, 선회방식 또는 가압용해 방식의 나노버블 발생기일 수 있다.According to one embodiment, the nano bubble generator may be a nano bubble generator of an air jet type, a cavitation type, a pivot type, or a pressure melting type.

본 발명에 따르면, 원유수송선의 원유저장탱크에서 증발(기화)되는 증발 성분, 즉, 원유증발가스를 나노버블 발생기에 통과시켜, 선박용 액체 연료(바람직하게는, H.F.O)에 나노버블 형태로 존재하게 하고, 나노버블 형태의 증발가스가 포함된 선박용 액체 연료를 엔진에 공급하여 연소시킴으로써, 원유증발가스의 대기 중 배출에 따른 대기오염을 줄이고 버려지는 원유증발가스를 원유수송선의 운전에 이용함으로써 연료비를 크게 절감할 수 있다. 이때, 엔진에 공급되는 선박용 액체 연료는 나노버블 형태로 존재하는 원유증발가스에 의해 분사시 무화를 극대화시켜 엔진(즉, 혼소 엔진)에서의 연소 효율을 향상시키는데 크게 기여한다. According to the present invention, an evaporation component (i.e., a crude oil evaporation gas) evaporated (vaporized) in a crude oil storage tank of a crude oil transportation line is passed through a nano bubble generator to be present in the form of a nano bubble in a ship liquid fuel And by supplying the marine liquid fuel containing the nano bubble-shaped evaporation gas to the engine and burning it, the air pollution due to the discharge of the crude oil evaporation gas into the atmosphere is reduced and the crude oil evaporation gas is used for driving the crude oil transportation line, Can be greatly reduced. At this time, the marine liquid fuel supplied to the engine is maximized in atomization by the crude oil evaporation gas existing in the form of nano bubbles, and contributes greatly to improve the combustion efficiency in the engine (that is, the collision engine).

도 1은 본 발명의 일 실시예에 따른 원유수송선의 엔진시스템을 설명하기 위한 개념적인 구성도이다.
도 2는 도 1에 도시된 원유수송선의 엔진시스템에 적용될 수 있는 나노버블 발생기의 다양한 방식을 예시한 도면이다. 1 is a conceptual diagram illustrating an engine system of a crude oil transportation line according to an embodiment of the present invention.
2 is a diagram illustrating various methods of a nano bubble generator that can be applied to an engine system of a crude oil transportation line shown in FIG.

이하 첨부된 도면들을 참조로 하여 본 발명의 바람직한 실시예를 설명한다. 첨부된 도면들 및 이에 관한 설명은 당해 기술분야에서 통상의 기술을 가진 자로 하여금 본 발명에 관한 이해를 돕기 위한 의도로 제시된 것이다. 따라서, 도면들 및 설명이 본 발명의 범위를 한정하는 것으로 해석되어서는 아니 될 것이다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings and the description thereof are intended to aid those of ordinary skill in the art in understanding the present invention. Accordingly, the drawings and description are not to be construed as limiting the scope of the invention.

도 1은 본 발명의 일 실시예에 따른 원유수송선의 엔진시스템을 설명하기 위한 개념적인 구성도이다.1 is a conceptual diagram illustrating an engine system of a crude oil transportation line according to an embodiment of the present invention.

도 1을 참조하면, 원유수송선은 선체(S)와, 선체(S)의 데크 하부에 배치된 원유저장탱크(T)와, 엔진시스템을 포함한다. 상기 엔진시스템은 혼소 엔진(2)과, 상기 혼소 엔진(2)에 연료를 공급하는 연료공급장치(1)를 포함한다. 본 실시예에 있어서, 상기 연료공급장치(1)는 선박용 액체 연료 탱크(11)에 저장된 선박용 액체 연료를 혼소 엔진(2)에 공급하여 상기 혼소 엔진(2) 내에서 그 연료를 연소시켜 원유수송선의 운항 동력으로 이용한다. 또한 상기 연료공급장치(1)는 원유저장탱크(T)에서 기화되어 배출된 원유증발가스를 나노버블 상태로 만들고 그 나노버블 상태의 원유증발가스를 선박용 액체 연료 내에 포함시켜 혼소 엔진(2)에 공급하도록 구성된다. 이를 위해, 상기 연료공급장치(1)는 선박용 액체 연료 탱크(11)와, 원유저장탱크(T)의 상부에 연결된 원유증발가스 배출라인(10)을 포함한다.Referring to Fig. 1, the crude oil transportation line includes a hull S, a crude oil storage tank T disposed under the deck of the hull S, and an engine system. The engine system includes a collision engine (2) and a fuel supply device (1) for supplying fuel to the collision engine (2). In the present embodiment, the fuel supply apparatus 1 supplies the marine liquid fuel stored in the marine liquid fuel tank 11 to the marine engine 2 to burn the fuel in the marine engine 2, As the navigation power of. Also, the fuel supply device 1 is configured to make the crude oil evaporation gas vaporized and discharged from the crude oil storage tank T into a nano-bubble state, and to contain the crude oil evaporation gas in the nano bubble state in the marine liquid fuel, . To this end, the fuel supply system 1 comprises a marine liquid fuel tank 11 and a crude oil evaporative gas discharge line 10 connected to the top of the crude oil storage tank T.

또한, 상기 연료공급장치(1)는 상기 원유증발가스 배출라인(10)을 통해 배출되는 원유증발가스를 나노버블 상태로 만들어 상기 선박용 액체 연료 탱크(11)에 공급하는 가스 나노버블 발생수단과, 가스 연료가 공존하는 선박용 액체 연료를 상기 선박용 액체 연료 탱크(11)로부터 엔진(12)으로 펌핑하는 펌핑수단을 포함한다. 펌핑수단은 상기 선박용 액체 연료 탱크(11) 내에서 배치된 저압펌프(122)와, 상기 선박용 액체 연료 탱크(122) 외부에서 저압 펌프(122)에 의해 끌어 올려진 원유증발가스 포함 선박용 액체 연료를 혼소 엔진(2)에 고압으로 공급하는 고압펌프(124)를 포함하는 것이 좋다. The fuel supply apparatus 1 further comprises gas nano bubble generating means for converting the crude oil evaporation gas discharged through the crude oil evaporative gas discharge line 10 into a nano bubble state and supplying the oil evaporative gas to the marine liquid fuel tank 11, And pumping means for pumping the marine liquid fuel in which the gaseous fuel coexists from the marine liquid fuel tank (11) to the engine (12). The pumping means includes a low pressure pump 122 disposed in the marine liquid fuel tank 11 and a marine liquid fuel containing crude oil evaporated gas drawn by the low pressure pump 122 from outside the marine liquid fuel tank 122 And a high-pressure pump 124 for supplying high-pressure fuel to the combustion engine 2.

상기 선박용 액체 연료 탱크(11) 내에 저장된 채 상기 펌핑수단(122, 124)을 통해 혼소 엔진(2)으로 공급되는 선박용 액체 연료는, 이하 자세히 설명되는 가스 나노버블 발생수단에 의해 발생되어 공급된 나노버블 상태의 원유증발가스와 혼합되어 있으며, 나노버블 상태의 원유증발가스에 의해 혼소 엔진(2) 내에 무화가 극대화된 상태로 분사될 수 있다.The marine liquid fuel supplied to the duplex engine (2) through the pumping means (122, 124) while being stored in the marine liquid fuel tank (11) is supplied to the nano- Is mixed with the crude oil evaporation gas in the bubble state, and the atomization can be injected into the coma engine 2 in the maximized state by the crude oil evaporation gas in the nano bubble state.

나노버블 형태의 원유증발가스는 표면장력의 극소화를 통해 혼소 엔진(2) 내 분사시 액적을 미세화시키는 기능을 한다. 본 명세서에서, 용어 "나노버블"은 1㎛ 이하의 버블 직경을 갖는 기포를 의미하는 것으로, 이러한 나노버블은 표면장력이 자기가압효과가 있고 표면 대전에 의한 정전반발력이나 계면활성제에 의해 장시간 안정화 기능을 갖는다. 또한, 나노버블 상태의 원유증발가스는 선박용 액체 연료 탱크(11) 내에서 나노버블 상태로 선박용 액체 연료와 장시간 공존할 수 있다. 그리고, 혼소 엔진(2) 내로 분사될 때 분무 입자를 미세화하여 연소 효율을 높이는데 크게 기여한다.The nano bubble-shaped crude oil evaporation gas functions to miniaturize the droplet during injection into the coarse engine (2) by minimizing the surface tension. In the present specification, the term "nano bubble" refers to bubbles having a bubble diameter of 1 m or less. Such a nano bubble has a self-pressurizing effect on surface tension and an electrostatic repulsion force due to surface charge or a long- Respectively. The crude oil evaporation gas in the nano bubble state can coexist with the marine liquid fuel for a long time in the nano bubble state in the marine liquid fuel tank 11. In addition, when spraying into the combustion engine 2, the atomized particles are made finer and contribute greatly to enhance combustion efficiency.

본 실시예에 따른 연료공급장치(1)는 원유저장탱크(T)로부터 원유증발가스 배출라인(10)을 통해 나온 증발가스를 나노버블 상태로 만들어 상기 선박용 액체 연료 탱크(11)로부터 나온 선박용 액체 연료에 넣는 가스 나노버블 발생수단을 포함하며, 이 가스 나노버블 발생수단은 나노버블 발생기(14)를 포함한다. The fuel supply apparatus 1 according to the present embodiment is configured to make the evaporation gas from the crude oil storage tank T through the crude oil evaporative gas discharge line 10 into a nano bubble state and to supply the marine liquid from the marine liquid fuel tank 11 Gas bombardment means for injecting fuel into the gas bomb, wherein the gas bombardment means comprises a nanobubble generator (14).

또한, 상기 가스 나노버블 발생수단은 상기 나노버블 발생기(14)와 더불어, 상기 선박용 액체 연료 탱크(11)를 경유하도록 상기 선박용 액체 연료 탱크(11)에 연결되어 있는 순환라인(16)과, 상기 순환라인(16)에 설치되는 순환펌프(15)를 더 포함하며, 상기 나노버블 발생기(14)는 상기 순환라인(16)에서 상기 순환펌프(15)의 출구 측에 설치된다. 또한, 상기 순환라인(16)은 상기 순환펌프(15)를 통해 상기 원유증발가스 배출라인(10)과 연결된다. 상기 원유증발가스는 순환펌프(15)를 통해 상기 순환라인(16)을 흐르는 선박용 액체 연료 내로 공급된다.The gas nano bubble generating means includes a circulation line 16 connected to the marine liquid fuel tank 11 via the marine liquid fuel tank 11 in addition to the nano bubble generator 14, The nano bubble generator 14 is installed at the outlet side of the circulation pump 15 in the circulation line 16. The circulation line 16 is connected to the crude oil evaporative gas discharge line 10 through the circulation pump 15. The crude oil vapor is fed into the marine liquid fuel flowing through the circulation line (16) through the circulation pump (15).

상기 순환펌프(15)의 구동에 의해, 선박용 액체 연료는 상기 선박용 액체 연료 탱크(11)를 경유하면서 순환한다. 이 과정에서, 선박용 액체 연료는 나노버블 발생기(14)에 의해 발생된 나노버블 상태의 원유증발가스와 혼합된다. 앞에서 언급한 바와 같이, 상기 순환펌프(15)는 상기 나노버블 발생기(14)의 상류 측에서 원유증발가스를 상기 원유저장탱크(T)로부터 흡입하여 선박용 액체 연료와 함께 나노버블 발생기(14)에 공급하고, 나노버블 발생기(14)는 선박용 액체 연료 내 원유증발가스를 나노버블 상태로 만들어 선박용 액체 연료 탱크(11) 내로 공급한다.By driving the circulation pump 15, the marine liquid fuel circulates through the marine liquid fuel tank 11. In this process, the marine liquid fuel is mixed with the crude oil evaporation gas in the nano-bubble state generated by the nano bubble generator 14. As described above, the circulation pump 15 sucks crude oil evaporation gas from the crude oil storage tank T on the upstream side of the nano bubble generator 14 and supplies it to the nano bubble generator 14 together with the marine liquid fuel And the nano bubble generator 14 makes the crude oil evaporation gas in the marine liquid fuel into a nano bubble state and supplies it into the marine liquid fuel tank 11.

펌핑수단(122, 124)은 선박용 액체 연료 탱크(11)로부터 나노버블 상태의 원유증발가스가 혼재된 선박용 경유를 끌어 올려 고압으로 혼소 엔진(2)에 공급한다. The pumping means (122, 124) lifts the light oil for ships in which the crude oil evaporation gas in the nano bubble state is mixed from the marine liquid fuel tank (11) and supplies it to the combustion engine (2) at high pressure.

나노버블 발생기로는 도 2의 (a), (b), (c), (d)에 도시된 것과 같은 방식 또는 그 외 다양한 방식으로 나노버블을 발생시키는 것들이 이용될 수 있다. 도 2의 (a), (b), (c) 및 (d)는 차례대로 에어제트 방식, 캐비테이션 방식, 선회방식 및 가압용해 방식으로 나노버블을 발생시키며, 도 2에서 부호 "P"는 펌프를 나타내고, 부호 "A"는 가스 연료 유입부를 나타낸다.As the nano bubble generator, those generating nano bubbles in the manner as shown in Figs. 2 (a), 2 (b), 2 (c) and 2 (d) or in various other ways may be used. 2B, 2C, and 2D, in order to generate nano bubbles in an air jet system, a cavitation system, a swirl system, and a pressure melting system, And the symbol "A" represents the gas fuel inflow portion.

T: 원유저장탱크 1: 연료공급장치
2: 엔진 10: 증발가스 배출라인
11: 선박용 액체 연료 탱크)
14: 나노버블 발생기 16: 순환라인
122: 저압펌프 124: 고압펌프 T: crude oil storage tank 1: fuel supply device
2: Engine 10: Evaporative gas discharge line
11: Marine Liquid Fuel Tank)
14: Nano bubble generator 16: Circulation line
122: Low pressure pump 124: High pressure pump

Claims (4)

원유저장탱크를 포함하는 원유수송선의 엔진시스템에 있어서,
선박용 액체 연료가 저장되는 선박용 액체 연료 탱크;
상기 원유저장탱크 상부에 연결된 채 상기 원유수송선의 운항 중 상기 원유저장탱크에서 발생하는 원유증발가스를 상기 원유저장탱크의 외부로 배출하는 원유증발가스 배출라인;
상기 원유증발가스 배출라인을 통해 나온 원유증발가스를 나노버블 상태로 만들어 상기 선박용 액체 연료 탱크 내로 공급하는 가스 나노버블 발생수단; 및
상기 원유증발가스가 나노버블 형태로 공존하는 상기 선박용 액체 연료를 상기 선박용 액체 연료 탱크로부터 상기 원유수송선의 엔진으로 공급하는 펌핑수단을 포함하되,
상기 가스 나노버블 발생수단은, 상기 선박용 액체 연료 탱크를 경유하며 상기 원유증발가스 배출라인과 연결된 순환라인과, 상기 순환라인에 설치되는 순환펌프와, 상기 선박용 액체 연료 내에 존재하면서 상기 순환라인을 순환하는 상기 원유증발가스를 나노버블 형태로 만드는 나노버블 발생기를 포함하는 것을 특징으로 하는 원유수송선의 엔진시스템.CLAIMS 1. An engine system of a crude oil transportation line including a crude oil storage tank,
A marine liquid fuel tank storing marine liquid fuel;
A crude oil evaporation gas discharge line connected to the upper portion of the crude oil storage tank and discharging crude oil evaporation gas generated from the crude oil storage tank during operation of the crude oil transportation tank to the outside of the crude oil storage tank;
A gas nano bubble generating means for bringing the crude oil evaporation gas from the crude oil evaporative gas discharge line into a nano bubble state and supplying it into the marine liquid fuel tank; And
And pumping means for supplying the marine liquid fuel in which the crude oil evaporation gas exists in the form of nano bubbles from the marine liquid fuel tank to the engine of the crude oil transportation line,
The gas nano bubble generating means includes a circulation line connected to the crude oil evaporative gas discharge line via the marine liquid fuel tank, a circulation pump installed in the circulation line, and a circulation pump circulating the circulation line in the marine liquid fuel, And a nano bubble generator for converting the crude oil evaporation gas into a nano bubble shape. 삭제delete 청구항 1에 있어서, 상기 펌핑수단은 상기 선박용 액체 연료 탱크 내에 설치된 저압펌프와, 상기 선박용 액체 연료 탱크 외부에서 상기 저압펌프와 상기 엔진 사이에 설치된 고압펌프를 포함하는 것을 특징으로 하는 원유수송선의 엔진시스템.The engine system according to claim 1, wherein the pumping means includes a low-pressure pump installed in the marine liquid fuel tank and a high-pressure pump installed between the low-pressure pump and the engine outside the marine liquid fuel tank . 청구항 1 또는 청구항 3에 있어서, 상기 나노버블 발생기는 에어제트 방식, 캐비테이션 방식, 선회방식 또는 가압용해 방식의 나노버블 발생기인 것을 특징으로 하는 원유수송선의 엔진시스템.The engine system of claim 1 or 3, wherein the nano bubble generator is a nano bubble generator of an air jet type, a cavitation type, a pivot type, or a pressurization and dissolution type.
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KR101903104B1 (en) * 2017-07-14 2018-10-01 삼성중공업 주식회사 Crude Oil Tanker

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KR20130091135A (en) * 2012-02-07 2013-08-16 삼성중공업 주식회사 Floating structure
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KR20040041871A (en) * 2002-11-12 2004-05-20 현대자동차주식회사 Fuel particlization device using purge gas
KR20130091135A (en) * 2012-02-07 2013-08-16 삼성중공업 주식회사 Floating structure
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