KR20190067988A - Gas supply valve for gas valve unit of ship - Google Patents

Gas supply valve for gas valve unit of ship Download PDF

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KR20190067988A
KR20190067988A KR1020170167922A KR20170167922A KR20190067988A KR 20190067988 A KR20190067988 A KR 20190067988A KR 1020170167922 A KR1020170167922 A KR 1020170167922A KR 20170167922 A KR20170167922 A KR 20170167922A KR 20190067988 A KR20190067988 A KR 20190067988A
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South Korea
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opening
gas
closing member
pressure
pneumatic line
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KR1020170167922A
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Korean (ko)
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KR101994548B1 (en
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박형규
신용택
최정호
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동아대학교 산학협력단
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • 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
    • 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
    • F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
    • 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
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1225—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston with a plurality of pistons
    • 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

The present invention relates to a gas supply valve for a vessel gas valve unit, which forms a gas valve unit installed at the front end of an engine of a vessel to supply fuel gas to the engine, and, more specifically, to a gas supply valve for a vessel gas valve unit, capable of improving durability and responsibility by installing cylinders, which apply pressure to an opening and closing member opening and closing a through flow path, in the upper and lower parts of a body. According to the present invention, the gas supply valve for a vessel gas valve unit includes: a body including an inlet formed on one side and an outlet formed on the other side and a through flow path through which the fuel gas flows; an opening and closing member installed in the body to be movable to open or close the through flow path in accordance with vertical movement; an upper cylinder installed in the upper part of the body and connected to the opening and closing member to press the opening and closing member under a preset first pressure; and a lower cylinder installed in the lower part of the body and connected to the opening and closing member to press the opening and closing member under a preset second pressure in the same direction as the pressing direction of the upper cylinder.

Description

선박 가스밸브유닛용 가스공급밸브{GAS SUPPLY VALVE FOR GAS VALVE UNIT OF SHIP}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a gas supply valve for a ship gas valve unit,

본 발명은 선박의 엔진 전단에 설치되어 엔진으로 연료가스를 공급하기 위한 가스밸브유닛을 구성하는 선박 가스밸브유닛용 가스공급밸브에 관한 것이다. The present invention relates to a gas supply valve for a ship gas valve unit, which is provided at a front end of an engine of a ship and constitutes a gas valve unit for supplying fuel gas to an engine.

일반적으로 천연가스는 메탄이 주성분이고 소량으로 에탄과 프로판 등을 포함하는 것으로서 저공해 에너지원으로 각광받고 있다. Generally, natural gas is mainly composed of methane, and it contains ethane and propane in a small amount and is attracting attention as a low-pollution energy source.

이러한 천연가스는 육상이나 해상에 설비된 가스배관을 통해 기체 상태(NG)로 운반되거나, 선박에 액체 상태인 액화천연가스 상태(LNG)로 저장되어 원거리로 운반된다. These natural gas can be transported to the gaseous state (NG) through the gas piping installed on the land or sea, or stored in the liquefied natural gas state (LNG) in liquid form on the vessel and transported remotely.

상기 액화천연가스는 천연가스를 극저온(대략 -163℃ 이하)으로 냉각한 것으로 기체상태의 천연가스일 때보다 그 부피가 대략 1/600로 줄어들어 해상을 통한 원거리 운반에 매우 적합하다. The liquefied natural gas is cooled at a cryogenic temperature (below about -163 ° C), and its volume is reduced to about 1/600 of that of a natural gas in a gaseous state, so that it is very suitable for long-distance transportation through the sea.

한편, LNG 추진선박은 액화천연가스가 저장된 액화천연가스탱크에 연결되는 배관을 통해 천연가스를 엔진으로 공급된다. 이러한 천연가스를 엔진으로 공급하기 위해 선박에 가스밸브유닛(GVU: Gas Valve Unit)이 구비되어 있다. On the other hand, LNG propulsion ships are supplied with natural gas through the piping connected to the liquefied natural gas tank where liquefied natural gas is stored. In order to supply such natural gas to the engine, a gas valve unit (GVU) is provided on the ship.

상기한 가스밸브유닛은 엔진과 액화천연가스탱크의 사이에 설치되어 연료가스를 엔진의 부하에 대응되는 압력으로 엔진으로 공급하는데, 여과필터와 가스공급밸브 및 가스유량계 등을 포함한다. The gas valve unit is installed between the engine and the liquefied natural gas tank and supplies the fuel gas to the engine at a pressure corresponding to the load of the engine. The gas valve unit includes a filtration filter, a gas supply valve, and a gas flow meter.

여기서 가스공급밸브는 연료가스의 압력이 기설정된 압력 이상일 경우 내부 유로를 개방하여 연료가스를 엔진으로 공급하는 레귤레이터 역할을 한다. Wherein the gas supply valve serves as a regulator for opening the internal flow path and supplying the fuel gas to the engine when the pressure of the fuel gas is equal to or higher than a predetermined pressure.

이를 위해 가스공급밸브는 내부에 통과유로가 형성된 바디와 바디의 내부에서 통과유로를 개폐시키는 디스크로 크게 구성되어 디스크가 외부의 가압 수단에 의해 기설정된 압력으로 유입된 상태에서 연료가스의 압력에 의해 바디의 통과유로를 개방되는 구조이다. To this end, the gas supply valve is composed of a body having a pass-through passage formed therein and a disk for opening and closing the pass-through passage inside the body, and the gas is supplied by the pressure of the fuel gas The passage of the body is opened.

그러나 종래의 가스공급밸브에는 한 개의 가압 수단이 단독으로 설치되어 디스크를 가압함에 따라 정밀한 제어가 불가능하고 상대적으로 고용량의 가압수단을 적용해야 하므로 제조에 따른 비용도 많이 소요되는 문제점이 있다. 그리고 한 개의 가압수단에 의해 디스크를 가압함에 따라 밸브의 응답성도 떨어지고 내구성도 낮은 문제점도 있다. However, since the conventional gas supply valve is provided with a single pressurizing unit alone, it is impossible to precisely control the pressurization of the disc, and a relatively high-pressure unit must be applied. Also, as the disk is pressed by one pressing means, the responsiveness of the valve is lowered and the durability is also low.

대한민국 공개특허공보 제10-2015-0066232호, 2015.06.16.자 공개.Korean Patent Laid-Open Publication No. 10-2015-0066232, June 25, 2016. 대한민국 공개특허공보 제10-2017-0110198호, 2017.10.11.자 공개.Korean Patent Publication No. 10-2017-0110198, Oct. 10, 2017. Disclosure.

본 발명은 상기한 문제점을 해소하기 위해 발명된 것으로서, 정밀 제어가 가능하고 제조 비용을 절감할 수 있고 응답성을 보장하고 내구성도 향상시킬 수 있도록 바디의 상부와 하부에 실린더가 각각 설치되어 개폐부재인 디스크를 동시에 가압할 수 있는 선박 가스밸브유닛용 가스공급밸브를 제공하는데 그 목적이 있다. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a cylinder is installed at the upper and lower parts of the body so as to enable precise control, reduce manufacturing cost, ensure responsiveness and improve durability, The gas supply valve for a ship gas valve unit capable of simultaneously pressurizing a disk which is a ship gas valve unit.

본 발명의 목적은 이상에서 언급한 목적으로 제한되지 않으며, 언급되지 않은 또 다른 목적들은 아래의 기재로부터 명확하게 이해될 수 있을 것이다.The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.

상기 목적을 달성하기 위한 본 발명에 따른 선박 가스밸브유닛용 가스공급밸브는 선박의 엔진 전단에 설치되어 연료가스를 공급하는 가스밸브유닛용 가스공급밸브에 있어서, 일측에 인입구가 형성되고 타측에 토출구가 형성되며 내부에 상기 연료가스가 통과하는 통과유로가 형성된 바디; 상기 바디의 내부에 유동 가능하게 설치되어 상하 이동에 따라 상기 통과유로를 개폐하는 개폐부재; 상기 바디의 상부에 설치되고 상기 개폐부재에 연결되어 상기 개폐부재를 기설정된 제1 압력 하에서 하방으로 가압하는 상부실린더; 및 상기 바디의 하부에 설치되고 상기 개폐부재에 연결되어 상기 개폐부재를 기설정된 제2 압력 하에서 상기 상부실린더의 가압 방향과 동일한 방향으로 가압하는 하부실린더;를 포함하여 구성되는 것을 특징으로 한다. According to another aspect of the present invention, there is provided a gas supply valve for a gas valve unit for supplying fuel gas to a front end of an engine of a ship, the inlet valve being formed at one side of the gas supply valve, A body having a passage through which the fuel gas passes; An opening / closing member that is installed inside the body so as to be able to flow and opens and closes the passage through the vertical movement; An upper cylinder installed at an upper portion of the body and connected to the opening and closing member to press the opening and closing member downward under a predetermined first pressure; And a lower cylinder installed at a lower portion of the body and connected to the opening and closing member to press the opening and closing member in the same direction as the pressing direction of the upper cylinder under a predetermined second pressure.

압축공기를 공급하는 압축공기탱크; 상기 압축공기탱크와 상기 상부실린더를 연결하는 제1공압라인; 상기 압축공기탱크와 상기 하부실린더를 연결하는 제2공압라인; 및 상기 제1공압라인과 제2공압라인 상에 연결되고 상호 연동하여 상기 엔진의 부하에 따라 상기 압축공기의 양 또는 압력을 조절하여 상기 상부실린더와 상기 하부실린더에 의해 상기 개폐부재로 가해지는 압력을 제어하는 압력제어부;를 더 포함하여 구성되는 것을 특징으로 한다. A compressed air tank for supplying compressed air; A first pneumatic line connecting the compressed air tank and the upper cylinder; A second pneumatic line connecting the compressed air tank and the lower cylinder; And a control unit that is connected to the first pneumatic line and the second pneumatic line and interrelated with the first pneumatic line and the second pneumatic line to adjust the amount or pressure of the compressed air according to the load of the engine, And a pressure control unit for controlling the pressure of the fluid.

상기 상부실린더와 상기 하부실린더 중 적어도 하나의 내부에는 기설정된 압력으로 피스톤을 가압하는 탄성부재가 설치되는 것을 특징으로 한다. Wherein at least one of the upper cylinder and the lower cylinder is provided with an elastic member for pressing the piston with a predetermined pressure.

상기한 구성에 의한 본 발명은 개폐부재를 외부에서 가압하는 실린더가 바디의 상부와 하부가 각각 설치됨에 따라 바디의 상부와 하부에서 동시에 가압력을 발휘함으로써 밸브의 응답성 및 내구성이 크게 향상되고 실린더의 용량도 줄임으로써 수요처에서 요구하는 콤팩트화를 통해 설치공간을 줄이는 효과를 기대할 수 있다. According to the present invention constructed as above, since the cylinder for pressing the opening and closing member from the outside exerts a pressing force at the top and the bottom of the body at the same time as the upper and lower portions of the body are installed, the response and durability of the valve are greatly improved, By reducing the capacity, it is possible to expect the effect of reducing the installation space through compacting required by the customer.

도 1은 본 발명의 바람직한 실시 예에 따른 선박 가스밸브유닛용 가스공급밸브를 계략적으로 도시한 구성도이다.
도 2는 본 발명의 바람직한 실시 예에 따른 선박 가스밸브유닛용 가스공급밸브의 실린더에 인가되는 압축공기를 제어하기 위한 구성들을 도시한 블록도이다. 1 is a schematic view showing a gas supply valve for a ship gas valve unit according to a preferred embodiment of the present invention.
2 is a block diagram showing constructions for controlling compressed air applied to a cylinder of a gas supply valve for a ship gas valve unit according to a preferred embodiment of the present invention.

본 발명은 선박의 엔진 전단에 설치되어 엔진으로 연료가스를 공급하기 위한 가스밸브유닛을 구성하는 선박 가스밸브유닛용 가스공급밸브에 관한 것이다. The present invention relates to a gas supply valve for a ship gas valve unit, which is provided at a front end of an engine of a ship and constitutes a gas valve unit for supplying fuel gas to an engine.

특히, 본 발명에 따른 선박 가스밸브유닛용 가스공급밸브는 정밀 제어가 가능하고 콤팩트화를 통해 설치공간을 줄일 수 있고 응답성을 보장하고 내구성도 향상시킬 수 있는 것이 특징이다. Particularly, the gas supply valve for a ship gas valve unit according to the present invention is capable of precisely controlling and reducing installation space through compactness, ensuring responsiveness and durability.

이러한 특징은 바디의 상부와 하부에 각각 실린더를 설치하여 상기 각각의 실린더를 통해 바디의 내부에서 통과유로를 개폐시키는 디스크를 통과유로를 폐쇄시키는 방향으로 압력을 가하도록 구성한 것에 의해 달성된다. This feature is achieved by providing a cylinder at each of the upper and lower portions of the body, and applying a pressure in a direction that closes the passage through the cylinder for opening and closing the passage through the respective cylinders.

이하 본 발명의 바람직한 실시 예에 따른 선박 가스밸브유닛용 가스공급밸브를 첨부한 도면을 참조하여 상세하게 설명하면 다음과 같다. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a gas supply valve for a ship gas valve unit according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

본 발명의 바람직한 실시 예에 따른 선박 가스밸브유닛용 가스공급밸브는 도 1에 도시된 바와 같이 바디(10), 개폐부재(20), 상부실린더(30) 및 하부실린더(40)를 포함하여 구성될 수 있다. A gas supply valve for a ship gas valve unit according to a preferred embodiment of the present invention includes a body 10, an opening and closing member 20, an upper cylinder 30 and a lower cylinder 40 as shown in FIG. .

먼저, 상기 바디(10)는 일측을 통해 유입된 연료가스를 내부로 통과시켜 타측으로 토출시키는 구성이다. First, the body 10 is configured to pass the fuel gas flowing through one side thereof to the inside and discharge the fuel gas to the other side.

즉, 바디(10)는 일측에 연료가스가 유입되는 인입구(11)가 형성되고, 타측에 연료가스가 토출되는 토출구(12)가 형성되며, 내부에 인입구(11)와 토출구(12)를 연결하여 연료가스가 통과하는 통과유로(13)가 형성된다. That is, the body 10 has an inlet 11 through which fuel gas flows into one side, a discharge port 12 through which fuel gas is discharged from the other side, and an inlet 11 and a discharge port 12 are connected to each other Thereby forming the passage passage 13 through which the fuel gas passes.

단, 바디(10)는 인입구(11)와 통과유로(13) 및 토출구(12)가 S자 형상으로 연결된 글로브형태로 구성된다. 이때 인입구(11)는 액화천연가스탱크 측에 연결되고 토출구(12)는 엔진 측에 연결된다. However, the body 10 is configured in a globe shape in which the inlet 11, the passage passage 13, and the discharge port 12 are connected in an S-shape. At this time, the inlet 11 is connected to the liquefied natural gas tank side and the discharge port 12 is connected to the engine side.

다음으로, 상기 개폐부재(20)는 바디(10)의 통과유로(13) 상에 수평으로 설치되어 통과유로(13)를 개폐시키는 구성이다. Next, the opening and closing member 20 is horizontally installed on the passage passage 13 of the body 10 to open and close the passage passage 13.

즉, 개폐부재(20)는 상부와 하부에 상부스템(21)과 하부스템(22)이 각각 설치되어 상부스템(21) 및 하부스템(22)과 함께 상하로 이동하면서 통과유로(13)를 개방 또는 폐쇄한다. That is, the upper and lower stems 21 and 22 are installed on the upper and lower sides of the opening and closing member 20, respectively, so as to move up and down together with the upper stem 21 and the lower stem 22, Open or close.

다음으로, 상기 상부실린더(30)는 바디(10)의 상부에서 기설정된 압력 하에서 개폐부재(20)를 하방으로 가압하여 바디(10)의 통과유로(13)를 개폐 제어하는 구성이다. The upper cylinder 30 is configured to open and close the passage 10 of the body 10 by pressing the opening and closing member 20 downward under a preset pressure at the upper portion of the body 10.

즉, 상부실린더(30)는 바디(10)의 상부에 설치되고 외부에서 인가되는 압축공기에 따라 피스톤(31)이 하방으로 이동하면서 피스톤(31)과 연결된 로드를 통해 개폐부재(20)를 하방으로 가압한다. That is, the upper cylinder 30 is installed on the upper part of the body 10, and the piston 31 moves downward according to the compressed air applied from the outside, and the opening / closing member 20 is moved downward through the rod connected with the piston 31 .

마지막으로, 상기 하부실린더(40)는 바디(10)의 하부에서 기설정된 압력 하에서 개폐부재(20)를 상부실린더(30)의 가압방향과 동일한 하방으로 가압하여 바디(10)의 통과유로(13)를 개폐 제어하는 구성이다. The lower cylinder 40 presses the opening and closing member 20 downward under the predetermined pressure from the lower portion of the body 10 to the same direction as the pressing direction of the upper cylinder 30 to thereby open the passage passage 13 of the body 10 Is opened and closed.

즉, 하부실린더(40)는 바디(10)의 하부에 설치되고 외부에서 인가되는 압축공기에 따라 피스톤(41)이 하방으로 이동하면서 피스톤(41)과 연결된 로드를 통해 개폐부재(20)를 하방으로 가압한다. That is, the lower cylinder 40 is installed at the lower portion of the body 10 and moves downward according to the compressed air applied from the outside to the opening / closing member 20 through the rod connected to the piston 41 .

따라서 바디(10)의 인입구(11)를 통해 통과유로(13)의 일측으로 유입된 연료가스의 압력이 상부실린더(30)와 하부실린더(40)를 통해 개폐부재(20)를 하방으로 가압하는 압력보다 높을 경우 연료가스가 개폐부재(20)를 상방으로 밀어 토출구(12)로 토출되면서 공급된다. The pressure of the fuel gas flowing into one side of the passage passage 13 through the inlet 11 of the body 10 pushes the opening and closing member 20 downward through the upper cylinder 30 and the lower cylinder 40 The fuel gas is supplied to the discharge opening 12 while pushing the opening and closing member 20 upward.

상기와 달리 연로가스의 압력이 상부실린더(30)와 하부실린더(40)를 통해 개폐부재(20)를 하방으로 가압하는 압력보다 낮을 경우 연료가스가 개폐부재(20)를 상방으로 밀지 못하면서 통과유로(13)가 통과하지 못하면서 공급이 중단된다. When the pressure of the combustion gas is lower than the pressure for downwardly pushing the opening / closing member 20 through the upper cylinder 30 and the lower cylinder 40, the fuel gas can not push the opening / closing member 20 upward, (13) can not pass and the supply is stopped.

즉, 엔진의 부하 변동에 따라 상부실린더(30)와 하부실린더(40)를 연동시켜 개폐부재(20)로 가해지는 압력을 반반씩 담당하도록 함으로써 연료가스의 공급을 제어할 수 있다. That is, the supply of the fuel gas can be controlled by causing the upper cylinder 30 and the lower cylinder 40 to interlock with each other in accordance with the load variation of the engine so that the pressure applied to the opening /

여기서 상부실린더(30)와 하부실린더(40) 중 적어도 하나의 내부에는 기설정된 압력으로 피스톤(31)(41)을 가압하는 탄성부재(50)가 설치될 수 있다. An elastic member 50 may be installed in at least one of the upper cylinder 30 and the lower cylinder 40 to press the pistons 31 and 41 with predetermined pressures.

상기 탄성부재(50)는 상부실린더(30)와 하부실린더(40)의 작동시 강한 압력에 의한 요동 등을 안정적으로 작동되도록 하기 위함이다. The elastic member 50 is for stably operating the upper cylinder 30 and the lower cylinder 40 due to strong pressure during operation.

한편, 상부실린더(30)와 하부실린더(40)는 공압으로 작동될 수 있는데, 이를 위해 도 2에 도시된 바와 같이 압축공기탱크(60), 제1공압라인(70), 제2공압라인(80), 압력제어부(90)를 더 포함하여 구성될 수 있다. The upper cylinder 30 and the lower cylinder 40 may be operated with pneumatic pressure for this purpose. As shown in FIG. 2, the compressed air tank 60, the first pneumatic line 70, the second pneumatic line 80), and a pressure control unit (90).

상기 압축공기탱크(60)는 외기를 이용하여 압축공기를 발생시켜 저장하는 구성이다. The compressed air tank 60 is configured to generate and store compressed air by using outside air.

상기 제1공압라인(70)은 압축공기탱크(60)의 출력단과 상부실린더(30)를 연결하여 압축공기탱크(60)의 압축공기를 상부실린더(30)로 공급하는 구성이다. The first pneumatic line 70 connects the output end of the compressed air tank 60 and the upper cylinder 30 to supply the compressed air in the compressed air tank 60 to the upper cylinder 30.

상기 제2공압라인(80)은 압축공기탱크(60)의 출력단과 하부실린더(40)를 연결하여 압축공기탱크(60)의 압축공기를 하부실린더(40)로 공급하는 구성이다. The second pneumatic line 80 connects the output end of the compressed air tank 60 and the lower cylinder 40 to supply the compressed air in the compressed air tank 60 to the lower cylinder 40.

상기 압력제어부(90)는 제1공압라인(70)과 제2공압라인(80) 상에 연결되고 엔진의 부하에 따라 압축공기의 양 또는 압력을 조절하여 상부실린더(30)와 하부실린더(40)에 의해 개폐부재(20)로 가해지는 압력을 제어하는 구성이다. The pressure control unit 90 is connected to the first pneumatic line 70 and the second pneumatic line 80 and adjusts the amount or pressure of the compressed air in accordance with the load of the engine to control the upper cylinder 30 and the lower cylinder 40 The pressure applied to the opening and closing member 20 is controlled.

따라서 상부실린더(30)와 하부실린더(40)의 내부 압력을 압력제어부(90)를 통해 연동 제어하여 엔진의 부하 변동에 대응되게 조절함으로써 연료가스의 공급을 더욱 원활하고 안정적으로 행할 수 있다. Accordingly, the internal pressure of the upper cylinder 30 and the lower cylinder 40 is interlocked and controlled through the pressure control unit 90, so that the fuel gas can be smoothly and stably supplied by controlling the internal pressure of the upper cylinder 30 and the lower cylinder 40 corresponding to the load fluctuation of the engine.

상기한 실시 예는 예시적인 것에 불과한 것으로, 당해 기술분야에 대한 통상의 지식을 가진 자라면 이로부터 다양하게 변형된 다른 실시예가 가능하다. The above-described embodiments are merely illustrative, and various modifications may be made by those skilled in the art without departing from the scope of the present invention.

따라서 본 발명의 진정한 기술적 보호범위에는 하기의 특허청구범위에 기재된 발명의 기술적 사상에 의해 상기의 실시 예뿐만 아니라 다양하게 변형된 다른 실시예가 포함되어야 한다. Therefore, the true technical protection scope of the present invention should include not only the above embodiments but also various other modified embodiments according to the technical idea of the invention described in the following claims.

10: 바디
11: 인입구
12: 토출구
13: 통과유로
20: 개폐부재
21: 상부스템
22: 하부스템
30: 상부실린더
40: 하부실린더
50: 탄성부재
60: 압축공기탱크
70: 제1공압라인
80: 제2공압라인
90: 압력제어부 10: Body
11: Inlet
12:
13: Passage passage
20: opening / closing member
21: upper stem
22: Lower stem
30: upper cylinder
40: Lower cylinder
50: elastic member
60: Compressed air tank
70: 1st pneumatic line
80: 2nd pneumatic line
90:

Claims (3)

선박의 엔진 전단에 설치되어 연료가스를 공급하는 가스밸브유닛용 가스공급밸브에 있어서,
일측에 인입구가 형성되고 타측에 토출구가 형성되며 내부에 상기 연료가스가 통과하는 통과유로가 형성된 바디;
상기 바디의 내부에 유동 가능하게 설치되어 상하 이동에 따라 상기 통과유로를 개폐하는 개폐부재;
상기 바디의 상부에 설치되고 상기 개폐부재에 연결되어 상기 개폐부재를 기설정된 제1 압력 하에서 하방으로 가압하는 상부실린더; 및
상기 바디의 하부에 설치되고 상기 개폐부재에 연결되어 상기 개폐부재를 기설정된 제2 압력 하에서 상기 상부실린더의 가압 방향과 동일한 방향으로 가압하는 하부실린더;를 포함하여 구성되는 것을 특징으로 하는 선박 가스밸브유닛용 가스공급밸브.A gas supply valve for a gas valve unit which is provided at a front end of an engine of a ship to supply a fuel gas,
A body having an inlet formed at one side thereof and a discharge port formed at the other side thereof and having a passage passage through which the fuel gas passes;
An opening / closing member that is installed inside the body so as to be able to flow and opens and closes the passage through the vertical movement;
An upper cylinder installed at an upper portion of the body and connected to the opening and closing member to press the opening and closing member downward under a predetermined first pressure; And
And a lower cylinder installed at a lower portion of the body and connected to the opening and closing member to press the opening and closing member in the same direction as the pressing direction of the upper cylinder under a predetermined second pressure. Unit gas supply valve. 제1항에 있어서,
압축공기를 공급하는 압축공기탱크;
상기 압축공기탱크와 상기 상부실린더를 연결하는 제1공압라인;
상기 압축공기탱크와 상기 하부실린더를 연결하는 제2공압라인;
상기 제1공압라인과 제2공압라인 상에 연결되고 상호 연동하여 상기 엔진의 부하에 따라 상기 압축공기의 양 또는 압력을 조절하여 상기 상부실린더와 상기 하부실린더에 의해 상기 개폐부재로 가해지는 압력을 제어하는 압력제어부;를 더 포함하여 구성되는 것을 특징으로 하는 선박 가스밸브유닛용 가스공급밸브.The method according to claim 1,
A compressed air tank for supplying compressed air;
A first pneumatic line connecting the compressed air tank and the upper cylinder;
A second pneumatic line connecting the compressed air tank and the lower cylinder;
A first pneumatic line connected to the first pneumatic line, and a second pneumatic line connected to the first pneumatic line and the second pneumatic line, the first pneumatic line and the second pneumatic line interlocking with each other to adjust the amount or pressure of the compressed air according to the load of the engine, And a pressure control unit for controlling the pressure of the gas supply valve. 제1항에 있어서,
상기 상부실린더와 상기 하부실린더 중 적어도 하나의 내부에는
기설정된 압력으로 피스톤을 가압하는 탄성부재가 설치되는 것을 특징으로 하는 선박 가스밸브유닛용 가스공급밸브.The method according to claim 1,
In at least one of the upper cylinder and the lower cylinder,
And an elastic member for pressurizing the piston with a predetermined pressure is installed in the gas supply valve.
KR1020170167922A 2017-12-08 2017-12-08 Gas supply valve for gas valve unit of ship KR101994548B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060101840A (en) * 2005-03-02 2006-09-26 조찬동 Shut-off valve and pressure reducing valve
KR20150066232A (en) 2013-12-06 2015-06-16 대우조선해양 주식회사 Abnormality detecting device of gas extractin fan at gas valve unit room for offshore carrier and abnormality detecting method thereof
KR20160050882A (en) * 2014-10-31 2016-05-11 에이지밸브 주식회사 An valve actuator using air compression
KR20170110198A (en) 2016-03-22 2017-10-11 (주)한특이피 Gas valve unit for controling gas supply

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060101840A (en) * 2005-03-02 2006-09-26 조찬동 Shut-off valve and pressure reducing valve
KR20150066232A (en) 2013-12-06 2015-06-16 대우조선해양 주식회사 Abnormality detecting device of gas extractin fan at gas valve unit room for offshore carrier and abnormality detecting method thereof
KR20160050882A (en) * 2014-10-31 2016-05-11 에이지밸브 주식회사 An valve actuator using air compression
KR20170110198A (en) 2016-03-22 2017-10-11 (주)한특이피 Gas valve unit for controling gas supply

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