WO2016122031A1 - Liquefied gas leakage protection device - Google Patents

Liquefied gas leakage protection device Download PDF

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Publication number
WO2016122031A1
WO2016122031A1 PCT/KR2015/001035 KR2015001035W WO2016122031A1 WO 2016122031 A1 WO2016122031 A1 WO 2016122031A1 KR 2015001035 W KR2015001035 W KR 2015001035W WO 2016122031 A1 WO2016122031 A1 WO 2016122031A1
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WO
WIPO (PCT)
Prior art keywords
liquefied gas
protection device
discharge
leakage protection
leakable
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PCT/KR2015/001035
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French (fr)
Korean (ko)
Inventor
유병용
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대우조선해양 주식회사
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Priority to PCT/KR2015/001035 priority Critical patent/WO2016122031A1/en
Publication of WO2016122031A1 publication Critical patent/WO2016122031A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss

Definitions

  • the present invention relates to a liquefied gas leak protection device, and more particularly to a liquefied gas leak protection device configured to not damage the hull or equipment around when the pressurized liquefied gas leaks in any direction.
  • liquefied gases such as LNG, LPG and CO 2 under pressure.
  • These vessels are equipped with a liquefied gas storage tank for storing the low temperature liquefied gas
  • the liquefied gas storage tank is made of a material that can withstand cryogenic or low temperature, but the hull of the tank including this is only at room temperature to reduce costs Most of them are made of usable plain steel. Therefore, when the liquefied gas leaks, the liquefied gas directly comes into contact with the general steel, and the general steel may be destroyed at low temperature.
  • this conventional technology is to check the leakage of LNG, and had a problem that it is difficult to directly prevent damage to the surrounding structure when the leakage of LNG.
  • a liquefied gas carrier such as an LNG carrier, or an LNG fuel tank used as fuel in a general commercial ship
  • the pressurized liquefied gas is at atmospheric pressure. It does not fall to the floor due to the pressure difference from the outside, but is ejected in an arbitrary direction, causing serious damage to surrounding components, devices or hulls.
  • the CO 2 carrier has to be maintained at a pressure of 5.18 bar or more at all times since CO 2 cannot exist in a liquid state below 5.18 bar, and is generally developed to operate at a pressure between 6 and 20 bar.
  • CO 2 leaks into the air in the liquid phase, it is dropped to about -80 °C by Joule-Tomson effect, so the hull is made by using ordinary steel or low temperature molten steel that can endure near -50 °C. If made, it will damage the hull.
  • the present invention is to solve the conventional problems as described above, to prevent damage to the hull or equipment around when the pressurized liquefied gas leaks in any direction, and has a relatively simple structure and ships and systems at a low cost
  • the purpose is to maintain the safety of the liquefied gas carriers and to reduce the cost of manufacturing the liquefied gas carriers.
  • the present invention by the liquefied gas leakage protection device so that the leaked liquefied gas can not be leaked to the outside so that there is no open portion other than the gas outlet, the leaked liquefied gas is stored down by its own weight and only the gas becomes a gas It is intended to minimize the damage caused by leaked liquefied gas by being configured to be discharged by the gas outlet.
  • a storage container installed outside the leakable portion of the liquefied gas in the liquefied gas installation, and storing the liquefied gas leaking from the leakable portion;
  • liquefied gas leakage protection device including a discharge portion provided to discharge the gas from the inside of the storage container is provided.
  • the storage container may be detachably coupled to the opening and closing cover at the top.
  • the discharge portion may be formed of a " ⁇ " shaped discharge pipe connected to the upper portion of the storage container.
  • the discharge part may be formed of an outlet formed on an upper surface of the storage container, and the storage container may be provided to face the upper surface of a blocking part installed to be spaced upwardly from the discharge port.
  • the storage container may be horizontally formed by extending upwardly from one side of the outlet, and a protrusion may protrude upward from the other side of the outlet.
  • the storage container may be formed of an opening and closing cover that is coupled to the top detachably.
  • the liquefied gas installation in the liquefied gas installation outside the leakable portion of the liquefied gas, the open container for storing the liquefied gas leaking from the leakable portion, the upper opening is formed;
  • the liquefied gas leakage protection device including a discharge portion provided to discharge the gas from the inside of the open container and the blocking cover is provided.
  • the blocking cover is formed so that the lower end is opened so that the side and the lower end are spaced apart from the open container, and the opening and closing cover may be detachably coupled to the upper part.
  • a storage member which is located outside the leakable portion of the liquefied gas in the liquefied gas installation is attached to the liquefied gas installation, the storage member for storing the liquefied gas leaking from the leakable portion; And liquefied gas leakage protection device including a discharge portion provided to discharge the gas from the inside of the storage member is provided.
  • the storage member may be formed of an opening and closing cover to which the upper portion is detachably coupled.
  • the discharge portion may be formed with a gap formed between the storage member and the leakable portion.
  • the open lower end is attached to the liquefied gas installation, stores the liquefied gas leaking from the leakable portion,
  • An open storage member formed to be opened;
  • a blocking cover inserted into the open storage member and installed outside the leakable portion to block scattering of liquefied gas leaking out;
  • a liquefied gas leakage protection device including a discharge portion provided to discharge the gas from the inside of the open storage member and the blocking cover is provided.
  • the blocking cover may be formed so that the lower end is opened so that the side and the lower end are spaced apart from the open storage member.
  • the pressurized liquefied gas when the pressurized liquefied gas leaks in any direction, it does not damage the surrounding hull or equipment, thereby preventing their breakage, maintaining safety, and having a relatively simple structure and low cost. Maintain the safety of ships and systems, cut off the direct discharge of liquid gas, and make it easy to separate the joints, making it easy to inspect, repair, and replace valves, flanges, tank nozzles, etc. It can be carried out, and the hull can be made of general steel can reduce the production cost of the liquefied gas carrier and the transportation cost of the liquefied gas.
  • FIG. 1 is a perspective view showing a liquefied gas leak protection device according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing a liquefied gas leak protection device according to a first embodiment of the present invention.
  • FIG 3 is a perspective view showing a liquefied gas leak protection device according to a second embodiment of the present invention.
  • FIG. 4 is a cross-sectional view showing a liquefied gas leak protection device according to a second embodiment of the present invention.
  • FIG. 5 is a perspective view showing a liquefied gas leak protection device according to a third embodiment of the present invention.
  • FIG. 6 is a sectional view showing a liquefied gas leak protection device according to a third embodiment of the present invention.
  • FIG. 7 is a perspective view showing a liquefied gas leak protection device according to a fourth embodiment of the present invention.
  • FIG. 8 is a sectional view showing a liquefied gas leak protection device according to a fourth embodiment of the present invention.
  • FIG. 9 is a perspective view showing a liquefied gas leak protection device according to a fifth embodiment of the present invention.
  • FIG. 10 is a sectional view showing a liquefied gas leak protection device according to a fifth embodiment of the present invention.
  • FIG. 1 is a perspective view showing a liquefied gas leak protection device according to a first embodiment of the present invention
  • Figure 2 is a cross-sectional view showing a liquefied gas leak protection device according to a first embodiment of the present invention.
  • the liquefied gas leak protection device 100 is installed outside the leakable portion 10 of the liquefied gas in the liquefied gas installation, the leakable portion It may include a storage container 110 for storing the liquefied gas leaked from the (10), and the discharge portion 120 provided to discharge the gas from the inside of the storage container (110).
  • the liquefied gas leak protection device 100 may be made of a material that withstands cryogenic temperatures such as stainless steel, aluminum, or an alloy thereof, and may be implemented as the leakable part 10 of the liquefied gas.
  • cryogenic temperatures such as stainless steel, aluminum, or an alloy thereof
  • the flange connections, and all the parts that have the potential leakage of the liquefied gas including the nozzle of the tank may be appropriate, LNG, LPG, CO 2, such as liquefaction of It can be applied to various structures requiring liquefied gas, including ships carrying gas, offshore structures requiring liquefied gas storage, and general vessels using liquefied gas such as LNG or LPG as fuel. The same may be applied to all the following embodiments as well.
  • the storage container 110 has a sealed structure as a whole, but it is not necessary to strictly keep the portion except for the portion storing the liquefied gas, and a part of the leakable portion 10, for example, the pipe 12 penetrates. It may be installed to, and the opening and closing cover 111 can be detachably coupled to the top for maintenance, repair or replacement for the leakable portion 10 accommodated therein.
  • the opening / closing cover 111 may be fastened by a fastening member such as a bolt 113, for example, by being supported at an edge of the locking portion 112 formed around the opening of the upper surface of the storage container 110.
  • the discharge part 120 may be formed of various structures and members, including a hole, a straight tube, and the like, in order to discharge the gas generated by vaporizing the liquefied gas in the storage container 110 due to a temperature increase.
  • a " ⁇ " shaped discharge pipe connected to the upper portion of the storage container 110 to block the gas is ejected upward.
  • FIG 3 is a perspective view showing a liquefied gas leak protection device according to a second embodiment of the present invention
  • Figure 4 is a cross-sectional view showing a liquefied gas leak protection device according to a second embodiment of the present invention.
  • the liquefied gas leak protection device 200 is installed outside the leakable portion 20, for example flange connection of the liquefied gas in the liquefied gas installation And a storage container 210 for storing the liquefied gas leaking from the leakable part 20, and a discharge part 220 provided to discharge the gas from the inside of the storage container 210.
  • Discharge part 220 may be formed of an outlet formed on the upper surface 211 of the storage container 210 having a closed structure. At this time, the storage container 210 may be provided so that the blocking portion 212 is installed to be spaced upwardly at the discharge port which is the discharge portion 220 to face the upper surface 211.
  • the reservoir 210 may be installed so that some member of the leakable part 20, for example, the pipe 21, penetrates, and from one side of the outlet, in which the blocking part 212 is the outlet 220, as in this embodiment. It may extend upwardly and be formed horizontally, and a protrusion 213 protruding upwardly may be formed on the other side of the outlet so as to advantageously block inflow of foreign matters to the outlet side.
  • Storage container 210 may be formed of the opening and closing cover 214, the upper portion is detachably coupled for maintenance, repair or replacement for the leakable portion (20).
  • the opening and closing cover 214 may be coupled to the coupling portion 215 of the storage container 210 in a fitting manner and fastened to the bolt 216.
  • FIG. 5 is a perspective view showing a liquefied gas leak protection device according to a third embodiment of the present invention
  • Figure 6 is a cross-sectional view showing a liquefied gas leak protection device according to a third embodiment of the present invention.
  • the liquefied gas leak protection device 300 is installed outside the leakable portion 30 of the liquefied gas in the liquefied gas installation, the leakable portion
  • the liquefied gas leaking from the 30 is stored, and the open container 310 is formed so as to open upward, and is inserted into the open container 310 to be installed outside the leakable portion to block the scattering of the leaked liquefied gas.
  • the blocking cover 320 and the open container 310 and the discharge cover 330 provided to discharge the gas from the inside of the blocking cover 320.
  • the open container 310 may be installed to penetrate some member, such as the pipe 31, in the leakable portion 30 as in this embodiment.
  • the blocking cover 320 may be formed so that the lower end is opened as in the present embodiment so that the side and the lower end are spaced apart from the open container 310, and for maintenance, repair, or replacement of the leakable part 30,
  • the opening and closing cover 321 may be detachably coupled to the upper portion.
  • the opening / closing cover 321 may be fastened by a fastening member such as a bolt 323, for example, by being edge-supported to the locking portion 322 formed around the opening of the upper surface of the blocking cover 320.
  • the discharge part 330 includes, for example, a gap 331 formed between the open container 310 and the blocking cover 320, and a discharge pipe 332 having a “332” shape connected to an upper portion of the blocking cover 320.
  • a discharge pipe 332 having a “332” shape connected to an upper portion of the blocking cover 320.
  • it can be made of various structures or members, including holes, straight pipes and the like.
  • FIG. 7 is a perspective view showing a liquefied gas leak protection device according to a fourth embodiment of the present invention
  • Figure 8 is a cross-sectional view showing a liquefied gas leak protection device according to a fourth embodiment of the present invention.
  • the liquefied gas leak protection device 400 is located in the liquefied gas installation 4 outside the leakable portion 40 of the liquefied gas opening
  • the lower end is attached to the liquefied gas facility (4), the storage member 410 for storing the liquefied gas leaking from the leakable portion 40 and the discharge provided to discharge the gas from the inside of the storage member 410
  • a portion 420 is included.
  • the storage member 410 may be fixed by a liquefied gas facility 4, for example, by welding or the like to be in close contact with the upper end of the storage tank to maintain the airtight, thereby liquefied gas with the liquefied gas facility 4 It may be a container for storing. In this case, the pipe 41 of the leakable part 40 may be disposed to extend upward through the opening of the storage member 410.
  • the storage member 410 is open at the top, but the top can be opened by forming an opening in a region corresponding to a part of the upper surface, as in this embodiment, the top for maintenance, repair or replacement of the leakable portion 40 It may be made of an opening and closing cover 411 is detachably coupled. In this case, the opening and closing cover 411 may be coupled to the coupling part 412 of the storage member 410 by a bolt 413.
  • the discharge portion 420 may be formed of a gap formed between the storage member 410 and the leakable portion 40 as in this embodiment.
  • FIG. 9 is a perspective view showing a liquefied gas leak protection device according to a fifth embodiment of the present invention
  • Figure 10 is a cross-sectional view showing a liquefied gas leak protection device according to a fifth embodiment of the present invention.
  • the liquefied gas leak protection device 500 is located outside the leakable part 50 of the liquefied gas in the liquefied gas installation 5.
  • the lower end is attached to the liquefied gas installation (5), stores the liquefied gas leaking from the leakable portion 50, and is inserted into the open storage member 510 and the open storage member 510 which is formed to open upwards.
  • Is provided on the outside of the leakable portion 50 is provided to discharge the gas from the inside of the blocking cover 520 and the open storage member 510 and the blocking cover 520 to block the scattering of the liquefied gas leaks
  • the discharge unit 530 is included.
  • the open storage member 510 can be fixed by means of welding or the like so as to be in close contact with the liquefied gas installation 5, for example, the upper end of the storage tank to maintain the airtight, thereby liquefying with the liquefied gas installation 5.
  • a container for storing gas can be achieved.
  • the pipe 51 of the leakable part 50 may be disposed to extend upward through the opening of the open storage member 510.
  • the blocking cover 520 may be formed so that the lower end is opened as in the present embodiment so that the side and the lower end are spaced apart from the open storage member 510.
  • Discharge part 530 includes a gap 531 formed between the open storage member 510 and the blocking cover 520, and the " ⁇ " shaped discharge pipe 532 connected to the upper portion of the blocking cover 520. It may be, but is not necessarily limited to this, and may be made of various structures and members, including holes or straight pipes for discharging gas.
  • the leaked liquefied gas is lowered by its own weight so that there is no open portion other than the gas outlet in the liquefied gas leak protection device so that the leaked liquefied gas can not leak to the outside
  • Only stored and gasified gas can be configured to be discharged by a separate gas outlet.
  • the pressurized liquefied gas leaks in any direction, it does not damage the hull or equipment of the surroundings, thereby preventing their damage and maintaining safety.
  • Safety can be maintained and the joints can be easily removed, making it easy to inspect, repair, and replace valves, flanges, and tank nozzles that may contain liquefied gas.
  • a liquefied gas carrier such as a CO 2 carrier
  • the temperature drops to about -80 ° C. during the adiabatic expansion, but vaporizes quickly. Therefore, when the CO 2 is leaked by the liquefied gas leak protection device according to the present invention, This enables the hull to be manufactured from ordinary steel, which can reduce the cost of producing CO 2 carriers, reduce the cost of CO 2 transportation, and accelerate the commercialization of CCS technology.

Abstract

The present invention relates to a liquefied gas leakage protection device and, more specifically, to a liquefied gas leakage protection device that can: prevent a surrounding ship hull and equipment from being damaged when a pressurized liquefied gas leaks in an arbitrary direction, thereby preventing the breakdown thereof and maintaining the stability thereof; maintain the stability of a ship and a system with a relatively simple structure and a low cost; easily carry out inspection, repair, and replacement for a valve, a flange, a tank nozzle, and the like, which are likely to leak a liquefied gas, by making a joint easily separated; and reduce the cost required for manufacturing a liquefied gas carrier and the cost required for carrying a liquefied gas, by manufacturing a ship hull with a general steel. The liquefied gas leakage protection device, according to the present invention, comprises: a storage container that is installed outside a part that is likely to leak a liquefied gas in a liquefied gas facility and stores the liquefied gas leaked from the part that is likely to leak the liquefied gas; and a discharge part provided to discharge the gas from the interior of the storage container.

Description

액화가스 누출 보호장치Liquefied Gas Leak Protection Device
본 발명은 액화가스 누출 보호장치에 관한 것으로서, 더욱 구체적으로는 가압된 액화가스가 임의의 방향으로 누출시 주변의 선체나 장비에 손상을 가하지 않도록 구성된 액화가스 누출 보호장치에 관한 것이다.The present invention relates to a liquefied gas leak protection device, and more particularly to a liquefied gas leak protection device configured to not damage the hull or equipment around when the pressurized liquefied gas leaks in any direction.
급격한 산업화와 연료 소비량 증가로 인해, LNG, LPG나 CO2와 같은 액화가스를 가압된 상태로 운송하는 선박의 수요가 증가하고 있다. 이러한 선박은 온도가 낮은 액화가스를 저장하기 위한 액화가스 저장탱크가 구비되는데, 액화가스 저장탱크는 극저온이나 저온을 견딜 수 있는 재질로 제작되지만, 이를 포함한 탱크의 선체는 비용을 절감하기 위해서 상온에서만 사용 가능한 일반강으로 제작하는 경우가 대부분이다. 따라서, 액화가스가 누출되었을 경우에 일반강에 직접 액화가스가 접촉하여 일반강이 저온 취성 파괴될 수 있다. Due to the rapid industrialization and increased fuel consumption, there is an increasing demand for ships transporting liquefied gases such as LNG, LPG and CO 2 under pressure. These vessels are equipped with a liquefied gas storage tank for storing the low temperature liquefied gas, the liquefied gas storage tank is made of a material that can withstand cryogenic or low temperature, but the hull of the tank including this is only at room temperature to reduce costs Most of them are made of usable plain steel. Therefore, when the liquefied gas leaks, the liquefied gas directly comes into contact with the general steel, and the general steel may be destroyed at low temperature.
이와 같은 액화가스의 누출시 후속 조치를 취할 수 있도록, LNG의 누출을 검사하거나 누출 위치를 추적하는 시스템 등이 개발되었는데, 이러한 종래 기술로는 한국공개특허 제10-2009-0124798호의 LNG 탱크 누출 검사 장치 및 LNG 탱크 누출 검사방법과, 한국공개특허 제10-2010-0115544호의 LNG 저장탱크의 누출 위치 추적 시스템 및 방법 등이 있다.In order to take follow-up measures when leaking a liquefied gas, a system for inspecting a leak of LNG or tracking a leak location has been developed. Such a prior art includes LNG tank leak inspection of Korea Patent Publication No. 10-2009-0124798. Apparatus and LNG tank leak inspection method, and leak location tracking system and method of the LNG storage tank of Korea Patent Publication No. 10-2010-0115544.
그러나 이러한 종래 기술은 LNG의 누출을 확인하기 위한 것으로서, LNG의 누출시 주변 구조물의 손상을 직접적으로 방지하는 것이 어렵다는 문제점을 가지고 있었다. 예를 들면 LNG선과 같은 액화가스 운반선의 LNG 저장탱크나 일반 상선에서 연료로서 사용하는 LNG 연료탱크에서, 밸브, 플랜지, 탱크의 노즐 등으로부터 액화가스가 누출되는 경우, 가압상태의 액화가스가 대기압 상태의 외부에서 압력차에 의해 바닥에 떨어지지 않고, 임의의 방향으로 분출되어 주변의 구성부재나 장치 또는 선체 등에 심각한 손상을 초래하게 된다. 또한 CO2 운반선은 CO2가 5.18bar 이하에서는 액체상태로 존재할 수 없기 때문에 항상 5.18bar 이상의 압력으로 유지되어야 하고, 일반적으로 6~20bar사이의 압력으로 운영되는 개념으로 개발되고 있다. 이러한 고압의 CO2가 액상으로 대기중에 누출되면, 줄 톰슨 이펙트(Joule-Tomson effect)에 의해 -80℃ 정도까지 떨어지기 때문에 일반강이나 -50℃ 부근까지 견딜 수 있는 저온용강을 사용해서 선체를 만들 경우에 선체에 파손을 일으키게 된다.However, this conventional technology is to check the leakage of LNG, and had a problem that it is difficult to directly prevent damage to the surrounding structure when the leakage of LNG. For example, in a LNG storage tank of a liquefied gas carrier such as an LNG carrier, or an LNG fuel tank used as fuel in a general commercial ship, when liquefied gas leaks from a valve, a flange, a nozzle of a tank, or the like, the pressurized liquefied gas is at atmospheric pressure. It does not fall to the floor due to the pressure difference from the outside, but is ejected in an arbitrary direction, causing serious damage to surrounding components, devices or hulls. In addition, the CO 2 carrier has to be maintained at a pressure of 5.18 bar or more at all times since CO 2 cannot exist in a liquid state below 5.18 bar, and is generally developed to operate at a pressure between 6 and 20 bar. When such high pressure CO 2 leaks into the air in the liquid phase, it is dropped to about -80 ℃ by Joule-Tomson effect, so the hull is made by using ordinary steel or low temperature molten steel that can endure near -50 ℃. If made, it will damage the hull.
그러므로 이러한 문제점을 직접적으로 해결함으로써 가압된 액화가스의 누출로 인한 선체나 장비의 손상을 방지하도록 하는 장치의 개발이 필요하게 되었다.Therefore, there is a need for the development of a device to prevent damage to the hull or equipment caused by the leakage of pressurized liquefied gas by directly solving this problem.
본 발명은 상기한 바와 같은 종래의 문제점을 해결하기 위한 것으로서, 가압된 액화가스가 임의의 방향으로 누출시 주변의 선체나 장비에 손상을 가하지 않도록 하고, 비교적 간단한 구조를 가지고서 적은 비용으로 선박과 시스템의 안전도를 유지하며, 액화가스 운반선의 제작 비용과 액화가스의 운반 비용을 절감하는데 목적이 있다.The present invention is to solve the conventional problems as described above, to prevent damage to the hull or equipment around when the pressurized liquefied gas leaks in any direction, and has a relatively simple structure and ships and systems at a low cost The purpose is to maintain the safety of the liquefied gas carriers and to reduce the cost of manufacturing the liquefied gas carriers.
또한 본 발명은 누출된 액화가스가 외부에 누출될 수 없도록 액화가스 누출 보호장치에 가스 배출구 이외에는 개방된 부분이 없도록 함으로써, 누출된 액화가스는 자중에 의해 하강 저장되고 기체가 된 가스만이 별도의 가스배출구에 의해 배출되도록 구성하여 누출된 액화가스로 인한 손상을 최소화 하는데 목적이 있다.In addition, the present invention by the liquefied gas leakage protection device so that the leaked liquefied gas can not be leaked to the outside so that there is no open portion other than the gas outlet, the leaked liquefied gas is stored down by its own weight and only the gas becomes a gas It is intended to minimize the damage caused by leaked liquefied gas by being configured to be discharged by the gas outlet.
상기 목적을 달성하기 위한 본 발명의 일 측면에 따르면, 액화가스 설비에서 액화가스의 누출 가능 부분 외측에 설치되고, 상기 누출 가능 부분으로부터 누출되는 액화가스를 저장하는 저장용기; 및 상기 저장용기의 내측으로부터 가스를 배출시키도록 마련되는 배출부를 포함하는 액화가스 누출 보호장치가 제공된다.According to an aspect of the present invention for achieving the above object, a storage container installed outside the leakable portion of the liquefied gas in the liquefied gas installation, and storing the liquefied gas leaking from the leakable portion; And liquefied gas leakage protection device including a discharge portion provided to discharge the gas from the inside of the storage container is provided.
상기 저장용기는 상부에 개폐커버가 분리 가능하게 결합될 수 있다.The storage container may be detachably coupled to the opening and closing cover at the top.
상기 배출부는 상기 저장용기의 상부에 연결되는 "∩"자 형상의 배출관으로 이루어질 수 있다.The discharge portion may be formed of a "∩" shaped discharge pipe connected to the upper portion of the storage container.
상기 배출부는 상기 저장용기의 상면에 형성되는 배출구로 이루어지고, 상기 저장용기는 상기 배출구에 상방으로 이격되도록 설치되는 차단부가 상기 상면에 대향되도록 마련될 수 있다.The discharge part may be formed of an outlet formed on an upper surface of the storage container, and the storage container may be provided to face the upper surface of a blocking part installed to be spaced upwardly from the discharge port.
상기 저장용기는 상기 차단부가 상기 배출구의 한쪽 측부로부터 상방으로 연장되어 수평되게 형성되고, 상기 배출구의 다른 측부에 상방으로 돌출되는 돌출부가 형성될 수 있다.The storage container may be horizontally formed by extending upwardly from one side of the outlet, and a protrusion may protrude upward from the other side of the outlet.
상기 저장용기는 상부가 분리 가능하게 결합되는 개폐커버로 이루어질 수 있다.The storage container may be formed of an opening and closing cover that is coupled to the top detachably.
본 발명의 다른 측면에 따르면, 액화가스 설비에서 액화가스의 누출 가능 부분 외측에 설치되고, 상기 누출 가능 부분으로부터 누출되는 액화가스를 저장하며, 상방이 개방되도록 형성되는 개방용기; 상기 개방용기에 삽입되어 상기 누출 가능 부분의 외측에 설치됨으로써 누출되는 액화가스의 비산을 차단하는 차단커버; 및 상기 개방용기와 상기 차단커버의 내측으로부터 가스를 배출시키도록 마련되는 배출부를 포함하는 액화가스 누출 보호장치가 제공된다.According to another aspect of the invention, the liquefied gas installation in the liquefied gas installation outside the leakable portion of the liquefied gas, the open container for storing the liquefied gas leaking from the leakable portion, the upper opening is formed; A blocking cover inserted into the open container and installed outside the leakable part to block scattering of liquefied gas leaking out; And the liquefied gas leakage protection device including a discharge portion provided to discharge the gas from the inside of the open container and the blocking cover is provided.
상기 차단커버는 하단이 개방되도록 형성되어 상기 개방용기로부터 측면과 하단이 이격되도록 설치되고, 상부에 개폐커버가 분리 가능하게 결합될 수 있다.The blocking cover is formed so that the lower end is opened so that the side and the lower end are spaced apart from the open container, and the opening and closing cover may be detachably coupled to the upper part.
상기 배출부는 상기 개방용기와 상기 차단커버 사이에 형성되는 갭; 및 상기 차단커버의 상부에 연결되는 "∩"자 형상의 배출관을 포함할 수 있다.The discharge portion gap formed between the open container and the blocking cover; And it may include a discharge pipe of the "∩" shape is connected to the upper portion of the blocking cover.
본 발명의 또 다른 측면에 따르면, 액화가스 설비에서 액화가스의 누출 가능 부분 외측에 위치하여 개방된 하단이 상기 액화가스 설비에 부착되고, 상기 누출 가능 부분으로부터 누출되는 액화가스를 저장하는 저장부재; 및 상기 저장부재의 내측으로부터 가스를 배출시키도록 마련되는 배출부를 포함하는 액화가스 누출 보호장치가 제공된다.According to still another aspect of the present invention, a storage member which is located outside the leakable portion of the liquefied gas in the liquefied gas installation is attached to the liquefied gas installation, the storage member for storing the liquefied gas leaking from the leakable portion; And liquefied gas leakage protection device including a discharge portion provided to discharge the gas from the inside of the storage member is provided.
상기 저장부재는 상부가 분리 가능하게 결합되는 개폐커버로 이루어질 수 있다.The storage member may be formed of an opening and closing cover to which the upper portion is detachably coupled.
상기 배출부는 상기 저장부재와 상기 누출 가능 부분 사이에 형성되는 갭으로 이루어질 수 있다.The discharge portion may be formed with a gap formed between the storage member and the leakable portion.
본 발명의 또 다른 측면에 따르면, 액화가스 설비에서 액화가스의 누출 가능 부분 외측에 위치하여 개방된 하단이 상기 액화가스 설비에 부착되고, 상기 누출 가능 부분으로부터 누출되는 액화가스를 저장하며, 상방이 개방되도록 형성되는 개방저장부재; 상기 개방저장부재에 삽입되어 상기 누출 가능 부분의 외측에 설치됨으로써 누출되는 액화가스의 비산을 차단하는 차단커버; 및 상기 개방저장부재와 상기 차단커버의 내측으로부터 가스를 배출시키도록 마련되는 배출부를 포함하는 액화가스 누출 보호장치가 제공된다.According to another aspect of the present invention, in the liquefied gas installation is located outside the leakable portion of the liquefied gas, the open lower end is attached to the liquefied gas installation, stores the liquefied gas leaking from the leakable portion, An open storage member formed to be opened; A blocking cover inserted into the open storage member and installed outside the leakable portion to block scattering of liquefied gas leaking out; And a liquefied gas leakage protection device including a discharge portion provided to discharge the gas from the inside of the open storage member and the blocking cover is provided.
상기 차단커버는 하단이 개방되도록 형성되어 상기 개방저장부재로부터 측면과 하단이 이격되도록 설치될 수 있다.The blocking cover may be formed so that the lower end is opened so that the side and the lower end are spaced apart from the open storage member.
상기 배출부는 상기 개방저장부재와 상기 차단커버 사이에 형성되는 갭; 및 상기 차단커버의 상부에 연결되는 "∩"자 형상의 배출관을 포함할 수 있다.The discharge portion gap formed between the open storage member and the blocking cover; And it may include a discharge pipe of the "∩" shape is connected to the upper portion of the blocking cover.
본 발명에 따르면, 가압된 액화가스가 임의의 방향으로 누출시 주변의 선체나 장비에 손상을 미치지 않도록 하여 이들의 파손을 방지함과 아울러, 안전성을 유지할 수 있고, 비교적 간단한 구조를 가지고서 적은 비용으로 선박과 시스템의 안전도를 유지하고, 액체가스의 직접 배출을 차단할 수 있고, 이음부를 쉽게 분리할 수 있도록 하여 액화가스의 누출 가능성이 있는 밸브, 플랜지, 탱크 노즐 등에 대한 검사, 보수 및 교체 작업을 쉽게 실시할 수 있고, 선체를 일반강으로 제작할 수 있도록 하여 액화가스 운반선의 제작 비용과 액화가스의 운반 비용을 절감할 수 있다.According to the present invention, when the pressurized liquefied gas leaks in any direction, it does not damage the surrounding hull or equipment, thereby preventing their breakage, maintaining safety, and having a relatively simple structure and low cost. Maintain the safety of ships and systems, cut off the direct discharge of liquid gas, and make it easy to separate the joints, making it easy to inspect, repair, and replace valves, flanges, tank nozzles, etc. It can be carried out, and the hull can be made of general steel can reduce the production cost of the liquefied gas carrier and the transportation cost of the liquefied gas.
도 1은 본 발명의 제 1 실시례에 따른 액화가스 누출 보호장치를 도시한 사시도.1 is a perspective view showing a liquefied gas leak protection device according to a first embodiment of the present invention.
도 2는 본 발명의 제 1 실시례에 따른 액화가스 누출 보호장치를 도시한 단면도.2 is a cross-sectional view showing a liquefied gas leak protection device according to a first embodiment of the present invention.
도 3은 본 발명의 제 2 실시례에 따른 액화가스 누출 보호장치를 도시한 사시도.3 is a perspective view showing a liquefied gas leak protection device according to a second embodiment of the present invention.
도 4는 본 발명의 제 2 실시례에 따른 액화가스 누출 보호장치를 도시한 단면도.4 is a cross-sectional view showing a liquefied gas leak protection device according to a second embodiment of the present invention.
도 5는 본 발명의 제 3 실시례에 따른 액화가스 누출 보호장치를 도시한 사시도.5 is a perspective view showing a liquefied gas leak protection device according to a third embodiment of the present invention.
도 6은 본 발명의 제 3 실시례에 따른 액화가스 누출 보호장치를 도시한 단면도.6 is a sectional view showing a liquefied gas leak protection device according to a third embodiment of the present invention.
도 7은 본 발명의 제 4 실시례에 따른 액화가스 누출 보호장치를 도시한 사시도.7 is a perspective view showing a liquefied gas leak protection device according to a fourth embodiment of the present invention.
도 8은 본 발명의 제 4 실시례에 따른 액화가스 누출 보호장치를 도시한 단면도.8 is a sectional view showing a liquefied gas leak protection device according to a fourth embodiment of the present invention.
도 9는 본 발명의 제 5 실시례에 따른 액화가스 누출 보호장치를 도시한 사시도.9 is a perspective view showing a liquefied gas leak protection device according to a fifth embodiment of the present invention.
도 10은 본 발명의 제 5 실시례에 따른 액화가스 누출 보호장치를 도시한 단면도.10 is a sectional view showing a liquefied gas leak protection device according to a fifth embodiment of the present invention.
이하 첨부한 도면을 참조하여 본 발명의 바람직한 실시례에 대한 구성 및 작용을 상세히 설명하면 다음과 같다. 또한 하기 실시례는 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 하기 실시례에 한정되는 것은 아니다. Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following examples may be modified in many different forms, and the scope of the present invention is not limited to the following examples.
도 1은 본 발명의 제 1 실시례에 따른 액화가스 누출 보호장치를 도시한 사시도이고, 도 2는 본 발명의 제 1 실시례에 따른 액화가스 누출 보호장치를 도시한 단면도이다.1 is a perspective view showing a liquefied gas leak protection device according to a first embodiment of the present invention, Figure 2 is a cross-sectional view showing a liquefied gas leak protection device according to a first embodiment of the present invention.
도 1 및 도 2에 도시된 바와 같이, 본 발명의 제 1 실시례에 따른 액화가스 누출 보호장치(100)는 액화가스 설비에서 액화가스의 누출 가능 부분(10) 외측에 설치되고, 누출 가능 부분(10)으로부터 누출되는 액화가스를 저장하는 저장용기(110)와, 저장용기(110)의 내측으로부터 가스를 배출시키도록 마련되는 배출부(120)를 포함할 수 있다. 1 and 2, the liquefied gas leak protection device 100 according to the first embodiment of the present invention is installed outside the leakable portion 10 of the liquefied gas in the liquefied gas installation, the leakable portion It may include a storage container 110 for storing the liquefied gas leaked from the (10), and the discharge portion 120 provided to discharge the gas from the inside of the storage container (110).
본 발명의 제 1 실시례에 따른 액화가스 누출 보호장치(100)는 스테인레스 스틸이나 알루미늄 또는 이의 합금 등과 같이 극저온에 견디는 소재로 제작될 수 있고, 액화가스의 누출 가능 부분(10)으로는 본 실시례에서처럼 밸브(11)와 파이프(12)의 연결부분 외에도 플랜지 연결부분, 탱크의 노즐을 비롯하여 액화가스의 누출이 발생할 가능성이 있는 모든 부분이 해당될 수 있으며, LNG, LPG, CO2 등의 액화가스를 운반하는 선박, 액화가스의 저장을 필요로 하는 해양 구조물, LNG나 LPG 등의 액화가스를 연료로 사용하는 일반 선박을 비롯하여, 액화가스의 저장을 요하는 다양한 구조물에 적용될 수 있는데, 이러한 점들은 이하의 모든 실시례에서도 마찬가지로 적용될 수 있다.The liquefied gas leak protection device 100 according to the first embodiment of the present invention may be made of a material that withstands cryogenic temperatures such as stainless steel, aluminum, or an alloy thereof, and may be implemented as the leakable part 10 of the liquefied gas. cases, as in addition to the connection portion of the valve 11 and the pipe 12, the flange connections, and all the parts that have the potential leakage of the liquefied gas including the nozzle of the tank may be appropriate, LNG, LPG, CO 2, such as liquefaction of It can be applied to various structures requiring liquefied gas, including ships carrying gas, offshore structures requiring liquefied gas storage, and general vessels using liquefied gas such as LNG or LPG as fuel. The same may be applied to all the following embodiments as well.
저장용기(110)는 전체적으로 밀폐된 구조를 가지되, 액화가스를 저장하는 부분을 제외한 부분이 엄격하게 기밀을 유지할 필요는 없으며, 누출 가능 부분(10)의 일부 부재, 예컨대 파이프(12)가 관통하도록 설치될 수 있고, 내부에 수용된 누출 가능 부분(10)에 대한 유지, 보수 또는 교체를 위하여 상부에 개폐커버(111)가 분리 가능하게 결합될 수 있다. 개폐커버(111)는 예컨대 저장용기(110) 상면의 개구 주위에 형성되는 걸림부(112)에 가장자리가 지지되어 볼트(113) 등의 체결부재로 체결될 수 있다.The storage container 110 has a sealed structure as a whole, but it is not necessary to strictly keep the portion except for the portion storing the liquefied gas, and a part of the leakable portion 10, for example, the pipe 12 penetrates. It may be installed to, and the opening and closing cover 111 can be detachably coupled to the top for maintenance, repair or replacement for the leakable portion 10 accommodated therein. The opening / closing cover 111 may be fastened by a fastening member such as a bolt 113, for example, by being supported at an edge of the locking portion 112 formed around the opening of the upper surface of the storage container 110.
배출부(120)는 저장용기(110) 내의 액화가스가 온도 상승으로 인하여 기화됨으로써 발생되는 가스를 배출하기 위하여, 홀, 직선 형태의 관 등을 비롯한 다양한 구조 및 부재로 이루어질 수 있는데, 본 실시례에서처럼 상방으로부터 이물질이 투입되는 것을 차단함과 아울러, 상방으로 가스가 분출되는 것을 차단하도록 저장용기(110)의 상부에 연결되는 "∩"자 형상의 배출관으로 이루어질 수 있다.The discharge part 120 may be formed of various structures and members, including a hole, a straight tube, and the like, in order to discharge the gas generated by vaporizing the liquefied gas in the storage container 110 due to a temperature increase. In addition, as well as blocking foreign matters from above, and may be made of a "∩" shaped discharge pipe connected to the upper portion of the storage container 110 to block the gas is ejected upward.
도 3은 본 발명의 제 2 실시례에 따른 액화가스 누출 보호장치를 도시한 사시도이고, 도 4는 본 발명의 제 2 실시례에 따른 액화가스 누출 보호장치를 도시한 단면도이다.3 is a perspective view showing a liquefied gas leak protection device according to a second embodiment of the present invention, Figure 4 is a cross-sectional view showing a liquefied gas leak protection device according to a second embodiment of the present invention.
도 3 및 도 4에 도시된 바와 같이, 본 발명의 제 2 실시례에 따른 액화가스 누출 보호장치(200)는 액화가스 설비에서 액화가스의 누출 가능 부분(20), 예컨대 플랜지 연결부의 외측에 설치되고, 누출 가능 부분(20)으로부터 누출되는 액화가스를 저장하는 저장용기(210)와, 저장용기(210)의 내측으로부터 가스를 배출시키도록 마련되는 배출부(220)를 포함한다.3 and 4, the liquefied gas leak protection device 200 according to the second embodiment of the present invention is installed outside the leakable portion 20, for example flange connection of the liquefied gas in the liquefied gas installation And a storage container 210 for storing the liquefied gas leaking from the leakable part 20, and a discharge part 220 provided to discharge the gas from the inside of the storage container 210.
배출부(220)는 밀폐 구조를 가지는 저장용기(210)의 상면(211)에 형성되는 배출구로 이루어질 수 있다. 이때 저장용기(210)는 배출부(220)인 배출구에 상방으로 이격되도록 설치되는 차단부(212)가 상면(211)에 대향되도록 마련될 수 있다. Discharge part 220 may be formed of an outlet formed on the upper surface 211 of the storage container 210 having a closed structure. At this time, the storage container 210 may be provided so that the blocking portion 212 is installed to be spaced upwardly at the discharge port which is the discharge portion 220 to face the upper surface 211.
저장용기(210)는 누출 가능 부분(20)의 일부 부재, 예컨대 파이프(21)가 관통하도록 설치될 수 있고, 본 실시례에서처럼 차단부(212)가 배출부(220)인 배출구의 한쪽 측부로부터 상방으로 연장되어 수평되게 형성될 수 있고, 배출구 측으로 이물질 등의 유입을 차단하는데 유리하도록 배출구의 다른 측부에 상방으로 돌출되는 돌출부(213)가 형성될 수 있다. The reservoir 210 may be installed so that some member of the leakable part 20, for example, the pipe 21, penetrates, and from one side of the outlet, in which the blocking part 212 is the outlet 220, as in this embodiment. It may extend upwardly and be formed horizontally, and a protrusion 213 protruding upwardly may be formed on the other side of the outlet so as to advantageously block inflow of foreign matters to the outlet side.
저장용기(210)는 누출 가능 부분(20)에 대한 유지, 보수 또는 교체를 위하여 상부가 분리 가능하게 결합되는 개폐커버(214)로 이루어질 수 있다. 여기서 개폐커버(214)는 저장용기(210)의 결합부(215)에 끼움 방식으로 결합되어 볼트(216)로 체결될 수 있다. Storage container 210 may be formed of the opening and closing cover 214, the upper portion is detachably coupled for maintenance, repair or replacement for the leakable portion (20). Here, the opening and closing cover 214 may be coupled to the coupling portion 215 of the storage container 210 in a fitting manner and fastened to the bolt 216.
도 5는 본 발명의 제 3 실시례에 따른 액화가스 누출 보호장치를 도시한 사시도이고, 도 6은 본 발명의 제 3 실시례에 따른 액화가스 누출 보호장치를 도시한 단면도이다.5 is a perspective view showing a liquefied gas leak protection device according to a third embodiment of the present invention, Figure 6 is a cross-sectional view showing a liquefied gas leak protection device according to a third embodiment of the present invention.
도 5 및 도 6에 도시된 바와 같이, 본 발명의 제 3 실시예에 따른 액화가스 누출 보호장치(300)는 액화가스 설비에서 액화가스의 누출 가능 부분(30) 외측에 설치되고, 누출 가능 부분(30)으로부터 누출되는 액화가스를 저장하며, 상방이 개방되도록 형성되는 개방용기(310)와, 개방용기(310)에 삽입되어 누출 가능 부분의 외측에 설치됨으로써 누출되는 액화가스의 비산을 차단하는 차단커버(320)와, 개방용기(310)와 차단커버(320)의 내측으로부터 가스를 배출시키도록 마련되는 배출부(330)를 포함한다.5 and 6, the liquefied gas leak protection device 300 according to the third embodiment of the present invention is installed outside the leakable portion 30 of the liquefied gas in the liquefied gas installation, the leakable portion The liquefied gas leaking from the 30 is stored, and the open container 310 is formed so as to open upward, and is inserted into the open container 310 to be installed outside the leakable portion to block the scattering of the leaked liquefied gas. The blocking cover 320 and the open container 310 and the discharge cover 330 provided to discharge the gas from the inside of the blocking cover 320.
개방용기(310)는 본 실시례에서처럼 누출 가능 부분(30)에서 일부 부재, 예컨대 파이프(31)가 관통하도록 설치될 수 있다.The open container 310 may be installed to penetrate some member, such as the pipe 31, in the leakable portion 30 as in this embodiment.
차단커버(320)는 본 실시례에서처럼 하단이 개방되도록 형성되어 개방용기(310)로부터 측면과 하단이 서로 이격되도록 설치될 수 있고, 누출 가능 부분(30)에 대한 유지, 보수 또는 교체를 위하여, 상부에 개폐커버(321)가 분리 가능하게 결합될 수 있다. 개폐커버(321)는 예컨대 차단커버(320) 상면의 개구 주위에 형성되는 걸림부(322)에 가장자리가 지지되어 볼트(323) 등의 체결부재로 체결될 수 있다.The blocking cover 320 may be formed so that the lower end is opened as in the present embodiment so that the side and the lower end are spaced apart from the open container 310, and for maintenance, repair, or replacement of the leakable part 30, The opening and closing cover 321 may be detachably coupled to the upper portion. The opening / closing cover 321 may be fastened by a fastening member such as a bolt 323, for example, by being edge-supported to the locking portion 322 formed around the opening of the upper surface of the blocking cover 320.
배출부(330)는 예컨대 개방용기(310)와 차단커버(320) 사이에 형성되는 갭(331)과, 차단커버(320)의 상부에 연결되는 "∩"자 형상의 배출관(332)을 포함할 수 있으며, 이 밖에도 홀, 직선의 파이프 등을 비롯하여 다양한 구조 또는 부재로 이루어질 수 있다. The discharge part 330 includes, for example, a gap 331 formed between the open container 310 and the blocking cover 320, and a discharge pipe 332 having a “332” shape connected to an upper portion of the blocking cover 320. In addition, it can be made of various structures or members, including holes, straight pipes and the like.
도 7은 본 발명의 제 4 실시례에 따른 액화가스 누출 보호장치를 도시한 사시도이고, 도 8은 본 발명의 제 4 실시례에 따른 액화가스 누출 보호장치를 도시한 단면도이다.7 is a perspective view showing a liquefied gas leak protection device according to a fourth embodiment of the present invention, Figure 8 is a cross-sectional view showing a liquefied gas leak protection device according to a fourth embodiment of the present invention.
도 7 및 도 8에 도시된 바와 같이, 본 발명의 제 4 실시례에 따른 액화가스 누출 보호장치(400)는 액화가스 설비(4)에서 액화가스의 누출 가능 부분(40) 외측에 위치하여 개방된 하단이 액화가스 설비(4)에 부착되고, 누출 가능 부분(40)으로부터 누출되는 액화가스를 저장하는 저장부재(410)와, 저장부재(410)의 내측으로부터 가스를 배출시키도록 마련되는 배출부(420)를 포함한다.As shown in Figure 7 and 8, the liquefied gas leak protection device 400 according to the fourth embodiment of the present invention is located in the liquefied gas installation 4 outside the leakable portion 40 of the liquefied gas opening The lower end is attached to the liquefied gas facility (4), the storage member 410 for storing the liquefied gas leaking from the leakable portion 40 and the discharge provided to discharge the gas from the inside of the storage member 410 A portion 420 is included.
저장부재(410)는 액화가스 설비(4), 예컨대 저장 탱크 상부에 하단이 기밀을 유지하도록 밀착되기 위하여 용접 등의 방법에 의해 고정될 수 있고, 이로 인해 액화가스 설비(4)와 함께 액화가스를 저장하기 위한 용기를 이룰 수 있다. 이때 누출 가능 부분(40)의 파이프(41)는 저장부재(410)의 개구를 통해서 상방으로 연장되도록 배치될 수 있다.The storage member 410 may be fixed by a liquefied gas facility 4, for example, by welding or the like to be in close contact with the upper end of the storage tank to maintain the airtight, thereby liquefied gas with the liquefied gas facility 4 It may be a container for storing. In this case, the pipe 41 of the leakable part 40 may be disposed to extend upward through the opening of the storage member 410.
저장부재(410)는 상부가 개방되되, 본 실시례에서처럼 상면 중 일부에 해당하는 영역에 개구를 형성함으로써 상부가 개방될 수 있고, 누출 가능 부분(40)에 대한 유지, 보수 또는 교체를 위하여 상부가 분리 가능하게 결합되는 개폐커버(411)로 이루어질 수 있다. 여기서 개폐커버(411)는 저장부재(410)의 결합부(412)에 끼움 방식으로 결합되어 볼트(413)로 체결될 수 있다.The storage member 410 is open at the top, but the top can be opened by forming an opening in a region corresponding to a part of the upper surface, as in this embodiment, the top for maintenance, repair or replacement of the leakable portion 40 It may be made of an opening and closing cover 411 is detachably coupled. In this case, the opening and closing cover 411 may be coupled to the coupling part 412 of the storage member 410 by a bolt 413.
배출부(420)는 본 실시례에서처럼 저장부재(410)와 누출 가능 부분(40) 사이에 형성되는 갭으로 이루어질 수 있다.The discharge portion 420 may be formed of a gap formed between the storage member 410 and the leakable portion 40 as in this embodiment.
도 9는 본 발명의 제 5 실시례에 따른 액화가스 누출 보호장치를 도시한 사시도이고, 도 10은 본 발명의 제 5 실시례에 따른 액화가스 누출 보호장치를 도시한 단면도이다.9 is a perspective view showing a liquefied gas leak protection device according to a fifth embodiment of the present invention, Figure 10 is a cross-sectional view showing a liquefied gas leak protection device according to a fifth embodiment of the present invention.
도 9 및 도 10에 도시된 바와 같이, 본 발명의 제 5 실시례에 따른 액화가스 누출 보호장치(500)는 액화가스 설비(5)에서 액화가스의 누출 가능 부분(50) 외측에 위치하여 개방된 하단이 액화가스 설비(5)에 부착되고, 누출 가능 부분(50)으로부터 누출되는 액화가스를 저장하며, 상방이 개방되도록 형성되는 개방저장부재(510)와, 개방저장부재(510)에 삽입되어 누출 가능 부분(50)의 외측에 설치됨으로써 누출되는 액화가스의 비산을 차단하는 차단커버(520)와, 개방저장부재(510)와 차단커버(520)의 내측으로부터 가스를 배출시키도록 마련되는 배출부(530)를 포함한다.9 and 10, the liquefied gas leak protection device 500 according to the fifth embodiment of the present invention is located outside the leakable part 50 of the liquefied gas in the liquefied gas installation 5. The lower end is attached to the liquefied gas installation (5), stores the liquefied gas leaking from the leakable portion 50, and is inserted into the open storage member 510 and the open storage member 510 which is formed to open upwards. Is provided on the outside of the leakable portion 50 is provided to discharge the gas from the inside of the blocking cover 520 and the open storage member 510 and the blocking cover 520 to block the scattering of the liquefied gas leaks The discharge unit 530 is included.
개방저장부재(510)는 액화가스 설비(5), 예컨대 저장 탱크 상부에 하단이 기밀을 유지하도록 밀착되기 위하여 용접 등의 방법에 의해 고정될 수 있고, 이로 인해 액화가스 설비(5)와 함께 액화가스를 저장하기 위한 용기를 이룰 수 있다. 이때 누출 가능 부분(50)의 파이프(51)는 개방저장부재(510)의 개구를 통해서 상방으로 연장되도록 배치될 수 있다. The open storage member 510 can be fixed by means of welding or the like so as to be in close contact with the liquefied gas installation 5, for example, the upper end of the storage tank to maintain the airtight, thereby liquefying with the liquefied gas installation 5. A container for storing gas can be achieved. In this case, the pipe 51 of the leakable part 50 may be disposed to extend upward through the opening of the open storage member 510.
차단커버(520)는 본 실시례에서처럼 하단이 개방되도록 형성되어 개방저장부재(510)로부터 측면과 하단이 이격되도록 설치될 수 있다.The blocking cover 520 may be formed so that the lower end is opened as in the present embodiment so that the side and the lower end are spaced apart from the open storage member 510.
배출부(530)는 개방저장부재(510)와 차단커버(520) 사이에 형성되는 갭(531)과, 차단커버(520)의 상부에 연결되는 "∩"자 형상의 배출관(532)을 포함할 수 있으며, 반드시 이에 한하는 것은 아니며, 가스의 배출을 위한 홀 또는 직선의 파이프를 비롯하여 다양한 구조 및 부재로 이루어질 수 있다. Discharge part 530 includes a gap 531 formed between the open storage member 510 and the blocking cover 520, and the "∩" shaped discharge pipe 532 connected to the upper portion of the blocking cover 520. It may be, but is not necessarily limited to this, and may be made of various structures and members, including holes or straight pipes for discharging gas.
이와 같은 본 발명에 따른 액화가스 누출 보호장치에 따르면, 누출된 액화가스가 외부에 누출될 수 없도록 액화가스 누출 보호장치에 가스 배출구 이외에는 개방된 부분이 없도록 함으로써, 누출된 액화가스는 자중에 의해 하강 저장되고 기체가 된 가스만이 별도의 가스배출구에 의해 배출되도록 구성될 수 있다. According to the liquefied gas leak protection device according to the present invention, the leaked liquefied gas is lowered by its own weight so that there is no open portion other than the gas outlet in the liquefied gas leak protection device so that the leaked liquefied gas can not leak to the outside Only stored and gasified gas can be configured to be discharged by a separate gas outlet.
또한 가압된 액화가스가 임의의 방향으로 누출시 주변의 선체나 장비에 손상을 미치지 않도록 하여 이들의 파손을 방지함과 아울러, 안전성을 유지할 수 있고, 비교적 간단한 구조를 가지고서 적은 비용으로 선박과 시스템의 안전도를 유지할 수 있으며, 이음부를 쉽게 분리할 수 있도록 하여 액화가스의 누출 가능성이 있는 밸브, 플랜지, 탱크 노즐 등에 대한 검사, 보수 및 교체 작업을 쉽게 실시할 수 있다.In addition, when the pressurized liquefied gas leaks in any direction, it does not damage the hull or equipment of the surroundings, thereby preventing their damage and maintaining safety. Safety can be maintained and the joints can be easily removed, making it easy to inspect, repair, and replace valves, flanges, and tank nozzles that may contain liquefied gas.
또한 액화가스 운반선, 예컨대 CO2 운반선의 경우, 단열 팽창시에는 -80℃ 정도로 온도가 떨어지지만 금방 기화되는 성질이 있으므로, 본 발명에 따른 액화가스 누출 보호장치에 의해, CO2가 누출되었을 때 안전도를 보장할 수 있으며, 이로 인해 선체를 일반강으로 제작할 수 있도록 하여 CO2 운반선의 제작비용을 절감할 수 있으며, CO2 운송에 대한 비용을 줄일 수 있고, CCS 기술의 상용화를 앞당길 수 있다.In addition, in the case of a liquefied gas carrier, such as a CO 2 carrier, the temperature drops to about -80 ° C. during the adiabatic expansion, but vaporizes quickly. Therefore, when the CO 2 is leaked by the liquefied gas leak protection device according to the present invention, This enables the hull to be manufactured from ordinary steel, which can reduce the cost of producing CO 2 carriers, reduce the cost of CO 2 transportation, and accelerate the commercialization of CCS technology.
본 발명은 상기 실시례에 한정되지 않고, 본 발명의 기술적 요지를 벗어나지 아니하는 범위 내에서 다양하게 수정 또는 변형되어 실시될 수 있음은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 있어서 자명한 것이다.It is apparent to those skilled in the art that the present invention is not limited to the above embodiments, and may be practiced in various ways within the scope of the invention without departing from the spirit of the invention. It is.

Claims (16)

  1. 액화가스 설비에서 액화가스의 누출 가능 부분 외측에 설치되고, 상기 누출 가능 부분으로부터 누출되는 액화가스를 저장하는 저장용기; 및A storage container installed outside the leakable part of the liquefied gas in the liquefied gas facility and storing the liquefied gas leaking from the leakable part; And
    상기 저장용기의 내측으로부터 가스를 배출시키도록 마련되는 배출부를 포함하는, 액화가스 누출 보호장치.Liquefied gas leakage protection device comprising a discharge portion provided to discharge the gas from the inside of the storage container.
  2. 청구항 1에 있어서, The method according to claim 1,
    상기 저장용기는,The storage container,
    상기 누출가능 부분으로부터 누출된 액화가스가 분산되지 않도록 상기 배출부 이외에는 개방되는 부분이 없도록 마련되고, Is provided so that there is no opening other than the discharge portion so that the liquefied gas leaked from the leakable portion is not dispersed,
    상기 배출부는 가스만을 배출할 수 있도록 마련된, 액화가스 누출 보호장치.Liquefied gas leakage protection device, the discharge portion is provided to discharge only gas.
  3. 청구항 1에 있어서, The method according to claim 1,
    상기 저장용기는,The storage container,
    상부에 개폐커버가 분리 가능하게 결합되는, 액화가스 누출 보호장치.Liquefied gas leakage protection device is coupled to the top and bottom cover detachably.
  4. 청구항 1에 있어서,The method according to claim 1,
    상기 배출부는,The discharge portion,
    상기 저장용기의 상부에 연결되는 "∩"자 형상의 배출관으로 이루어지는, 액화가스 누출 보호장치.Liquefied gas leakage protection device consisting of a "∩" shaped discharge pipe connected to the upper portion of the storage container.
  5. 청구항 1에 있어서, The method according to claim 1,
    상기 배출부는,The discharge portion,
    상기 저장용기의 상면에 형성되는 배출구로 이루어지고,Consists of an outlet formed on the upper surface of the storage container,
    상기 저장용기는,The storage container,
    상기 배출구에 상방으로 이격되도록 설치되는 차단부가 상기 상면에 대향되도록 마련되는, 액화가스 누출 보호장치.Blocking portion which is installed to be spaced apart upward in the discharge port is provided to face the upper surface, liquefied gas leakage protection device.
  6. 청구항 5에 있어서,The method according to claim 5,
    상기 저장용기는,The storage container,
    상기 차단부가 상기 배출구의 한쪽 측부로부터 상방으로 연장되어 수평되게 형성되고, 상기 배출구의 다른 측부에 상방으로 돌출되는 돌출부가 형성되는, 액화가스 누출 보호장치.The blocking portion extends upwardly from one side of the discharge port and is formed horizontally, and the liquefied gas leakage protection device is formed with a protrusion projecting upward on the other side of the discharge port.
  7. 청구항 4 또는 청구항 5에 있어서, The method according to claim 4 or 5,
    상기 저장용기는,The storage container,
    상부가 분리 가능하게 결합되는 개폐커버로 이루어지는, 액화가스 누출 보호장치.Liquefied gas leak protection device consisting of an opening and closing cover that the upper portion is detachably coupled.
  8. 액화가스 설비에서 액화가스의 누출 가능 부분 외측에 설치되고, 상기 누출 가능 부분으로부터 누출되는 액화가스를 저장하며, 상방이 개방되도록 형성되는 개방용기;An open container installed outside the leakable part of the liquefied gas in the liquefied gas facility, storing the liquefied gas leaking from the leakable part, and configured to open upward;
    상기 개방용기에 삽입되어 상기 누출 가능 부분의 외측에 설치됨으로써 누출되는 액화가스의 비산을 차단하는 차단커버; 및 A blocking cover inserted into the open container and installed outside the leakable part to block scattering of liquefied gas leaking out; And
    상기 개방용기와 상기 차단커버의 내측으로부터 가스를 배출시키도록 마련되는 배출부를 포함하는, 액화가스 누출 보호장치.Liquefied gas leakage protection device comprising a discharge portion provided to discharge the gas from the inside of the open container and the blocking cover.
  9. 청구항 8에 있어서,The method according to claim 8,
    상기 차단커버는,The blocking cover,
    하단이 개방되도록 형성되어 상기 개방용기로부터 측면과 하단이 이격되도록 설치되고, 상부에 개폐커버가 분리 가능하게 결합되는, 액화가스 누출 보호장치.Is formed so that the lower end is opened so that the side and the bottom is spaced apart from the open container, the opening and closing cover is detachably coupled to the upper, liquefied gas leakage protection device.
  10. 청구항 8에 있어서,The method according to claim 8,
    상기 배출부는,The discharge portion,
    상기 개방용기와 상기 차단커버 사이에 형성되는 갭; 및 A gap formed between the open container and the blocking cover; And
    상기 차단커버의 상부에 연결되는 "∩"자 형상의 배출관을 포함하는, 액화가스 누출 보호장치.Liquefied gas leakage protection device comprising a "∩" shaped discharge pipe connected to the upper portion of the blocking cover.
  11. 액화가스 설비에서 액화가스의 누출 가능 부분 외측에 위치하여 개방된 하단이 상기 액화가스 설비에 부착되고, 상기 누출 가능 부분으로부터 누출되는 액화가스를 저장하는 저장부재; 및A storage member positioned outside the leakable part of the liquefied gas in the liquefied gas facility and attached to the liquefied gas facility, and storing the liquefied gas leaking from the leakable part; And
    상기 저장부재의 내측으로부터 가스를 배출시키도록 마련되는 배출부를 포함하는, 액화가스 누출 보호장치.Liquefied gas leakage protection device comprising a discharge portion provided to discharge the gas from the inside of the storage member.
  12. 청구항 11에 있어서,The method according to claim 11,
    상기 저장부재는,The storage member,
    상부가 분리 가능하게 결합되는 개폐커버로 이루어지는, 액화가스 누출 보호장치.Liquefied gas leak protection device consisting of an opening and closing cover that the upper portion is detachably coupled.
  13. 청구항 11에 있어서,The method according to claim 11,
    상기 배출부는,The discharge portion,
    상기 저장부재와 상기 누출 가능 부분 사이에 형성되는 갭으로 이루어지는, 액화가스 누출 보호장치.And a gap formed between the storage member and the leakable portion.
  14. 액화가스 설비에서 액화가스의 누출 가능 부분 외측에 위치하여 개방된 하단이 상기 액화가스 설비에 부착되고, 상기 누출 가능 부분으로부터 누출되는 액화가스를 저장하며, 상방이 개방되도록 형성되는 개방저장부재;An open storage member which is positioned outside the leakable part of the liquefied gas in the liquefied gas facility and is attached to the liquefied gas facility, stores the liquefied gas leaked from the leakable part, and is formed to be opened upward;
    상기 개방저장부재에 삽입되어 상기 누출 가능 부분의 외측에 설치됨으로써 누출되는 액화가스의 비산을 차단하는 차단커버; 및A blocking cover inserted into the open storage member and installed outside the leakable portion to block scattering of liquefied gas leaking out; And
    상기 개방저장부재와 상기 차단커버의 내측으로부터 가스를 배출시키도록 마련되는 배출부를 포함하는, 액화가스 누출 보호장치.Liquefied gas leakage protection device comprising a discharge portion provided to discharge the gas from the inside of the open storage member and the blocking cover.
  15. 청구항 14에 있어서,The method according to claim 14,
    상기 차단커버는,The blocking cover,
    하단이 개방되도록 형성되어 상기 개방저장부재로부터 측면과 하단이 이격되도록 설치되는, 액화가스 누출 보호장치.Is formed so that the lower end is opened so that the side and the lower end from the open storage member, liquefied gas leakage protection device.
  16. 청구항 14에 있어서,The method according to claim 14,
    상기 배출부는,The discharge portion,
    상기 개방저장부재와 상기 차단커버 사이에 형성되는 갭; 및 A gap formed between the open storage member and the blocking cover; And
    상기 차단커버의 상부에 연결되는 "∩"자 형상의 배출관을 포함하는, 액화가스 누출 보호장치.Liquefied gas leakage protection device comprising a "∩" shaped discharge pipe connected to the upper portion of the blocking cover.
PCT/KR2015/001035 2015-01-30 2015-01-30 Liquefied gas leakage protection device WO2016122031A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1082494A (en) * 1996-09-09 1998-03-31 Ishikawajima Harima Heavy Ind Co Ltd Liquid receiving device for low temperature liquefied gas piping
KR200330141Y1 (en) * 2003-04-14 2003-10-17 하이텍산업(주) Wraping cover for toxic material in the various pipe joint
KR200329889Y1 (en) * 1998-10-30 2004-02-11 주식회사 포스코 Internal leakage check device of gas explosion
KR101256966B1 (en) * 2012-05-18 2013-04-26 정천호 Liquid and gas leakege preventing apparatus, carving member and method for preventing liquid and gas leakege using the apparatus and carving member
KR101483615B1 (en) * 2014-03-03 2015-01-19 대한민국 Fluid collecting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1082494A (en) * 1996-09-09 1998-03-31 Ishikawajima Harima Heavy Ind Co Ltd Liquid receiving device for low temperature liquefied gas piping
KR200329889Y1 (en) * 1998-10-30 2004-02-11 주식회사 포스코 Internal leakage check device of gas explosion
KR200330141Y1 (en) * 2003-04-14 2003-10-17 하이텍산업(주) Wraping cover for toxic material in the various pipe joint
KR101256966B1 (en) * 2012-05-18 2013-04-26 정천호 Liquid and gas leakege preventing apparatus, carving member and method for preventing liquid and gas leakege using the apparatus and carving member
KR101483615B1 (en) * 2014-03-03 2015-01-19 대한민국 Fluid collecting apparatus

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