WO2016104220A1 - Floating structure provided with liquefied gas storage facility - Google Patents

Floating structure provided with liquefied gas storage facility Download PDF

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Publication number
WO2016104220A1
WO2016104220A1 PCT/JP2015/084934 JP2015084934W WO2016104220A1 WO 2016104220 A1 WO2016104220 A1 WO 2016104220A1 JP 2015084934 W JP2015084934 W JP 2015084934W WO 2016104220 A1 WO2016104220 A1 WO 2016104220A1
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WO
WIPO (PCT)
Prior art keywords
liquefied gas
cargo
floating structure
storage facility
gas storage
Prior art date
Application number
PCT/JP2015/084934
Other languages
French (fr)
Japanese (ja)
Inventor
崇 中田
Original Assignee
三井造船株式会社
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Filing date
Publication date
Application filed by 三井造船株式会社 filed Critical 三井造船株式会社
Priority to SG11201704007TA priority Critical patent/SG11201704007TA/en
Priority to KR1020177003272A priority patent/KR102428698B1/en
Priority to CN201580070819.8A priority patent/CN107000814B/en
Publication of WO2016104220A1 publication Critical patent/WO2016104220A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B11/00—Interior subdivision of hulls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B11/00—Interior subdivision of hulls
    • B63B11/04—Constructional features of bunkers, e.g. structural fuel tanks, or ballast tanks, e.g. with elastic walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
    • 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
    • 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
    • B63H21/38—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

Definitions

  • the present invention relates to a floating structure having a liquefied gas storage facility, and more specifically, a liquefied gas carrier ship, a liquefied gas fuel tank, comprising a facility for temporarily storing liquefied gas and a cargo equipment room.
  • the present invention relates to a floating structure provided with a liquefied gas storage facility, such as a ship equipped with, a floating structure provided with a liquefied gas fuel tank, or a floating structure having a liquefied gas storage facility.
  • the liquefied natural gas carriers (LNG ships) use fuel gas piping from the cargo equipment room to the side of the residential area in order to use the evaporated gas generated by natural evaporation of the natural gas as cargo.
  • the evaporative gas is led to the main engine in the engine room provided behind the cargo compartment.
  • the cargo equipment room In conventional liquefied gas carriers, the cargo equipment room is rarely placed in front of the hold space, which is the liquefied gas storage facility at the foremost end of the bow, in small ships. 11 and 12, the cargo equipment room 12 of the liquefied gas carrier ship 1X is provided between the cargo tanks 11 so as not to open the cargo compartment R1 for which explosion-proof measures are required. Yes.
  • a cargo handling manifold 13 is provided between the cargo tanks 11 in the cargo section R1, and the residence section 8 and the engine room 5 are provided at the rear of the cargo section R1.
  • a MOSS type spherical cargo tank is mounted as an example.
  • a cargo machine room (cargo equipment room) is provided on the upper deck of the cargo section between the rearmost cargo tank and the front cargo tank.
  • the LNG ship which provided the loading manifold (manifold for cargo handling) between these cargo tanks is illustrated.
  • the installation location is often limited to one location, so the cargo equipment room, the cargo handling manifold and the ladder are installed between the cargo tanks.
  • the port cannot be limited, it becomes necessary to provide a plurality of cargo handling manifolds, and securing the installation location becomes important.
  • the number of cargo tanks decreases, the number of places where the cargo tanks can be installed is reduced.
  • the present invention has been made in view of the above situation, and its object is to reduce the risk of leakage of high-pressure gas from high-pressure fuel gas piping in a floating structure equipped with a liquefied gas storage facility. Another object of the present invention is to provide a floating structure equipped with a liquefied gas storage facility that can secure a place where a new cargo handling facility, a new superstructure, and a new large-scale fitting can be added.
  • a floating structure having a liquefied gas storage facility of the present invention has a cargo compartment and an engine room behind the cargo compartment, and a part or all of the residential district is provided.
  • a cargo equipment room is arranged behind the cargo compartment and partly or entirely above the engine room. It should be noted that the cargo equipment room is arranged at a part or all of the upper side of the engine room when a part of the ceiling of the engine room becomes the floor of the cargo equipment room and when the whole ceiling of the engine room is the floor of the cargo equipment room. Shows the case.
  • the cargo equipment room in which the facility for transferring fuel gas is stored has been moved from between the cargo tanks directly above the engine room in which the main engine and power generation facilities that use fuel gas are stored. Therefore, the fuel gas piping provided to use liquefied gas such as natural gas as fuel is not only configured to go out of the cargo equipment room and then to the engine room directly below, but also directly below the cargo equipment room. It is also possible to adopt a configuration that immediately leads to a certain engine room.
  • the laying length of the high-pressure fuel gas piping from the cargo equipment room to the main engine in the engine room can be shortened, so that the possibility of fuel gas leakage is reduced, and explosion due to leakage of high-pressure fuel gas and Injuries and dangers to the human body can be reduced.
  • the range of anticorrosion measures is reduced, and it is easy to install electric wires such as power supply wires.
  • the residential area is changed into a cargo as the cargo equipment room moves.
  • a relatively simple layout change is required, such as moving backward from the equipment room.
  • This arrangement is effective when it is not possible to secure the installation location of the cargo equipment room on the upper deck of the cargo compartment, and it is also impossible to secure the installation location of the residential district at the bow.
  • a section in which any one or more of a cofer dam, a void, a fuel oil tank, and a water tank are disposed is provided behind the cargo equipment room. If the residential area is provided behind the compartment, the cargo equipment room and the residential area need not be adjacent to each other due to the interposition of the compartment. Therefore, even if a gas leak occurs in the cargo equipment room, The risk of the leaked gas entering can be reduced.
  • an engine room protruding portion provided by protruding a part of the engine room above the upper deck is disposed behind the cargo equipment room. If the residential area is provided behind the engine room protruding portion, the cargo equipment room and the residential area do not have to be adjacent to each other by the intervention of the engine room protruding portion, so that gas leakage occurs in the cargo equipment room. Even in this case, the risk of the leaked gas entering the residential area can be reduced.
  • the residential area is provided at the rear of the compartment, the cargo equipment room and the residential area do not have to be adjacent due to the interposition of the compartment, so even if a gas leak occurs in the cargo equipment room, The risk of the leaked gas entering the battery can be reduced.
  • an air conditioner air conditioner
  • hydraulic equipment and the like are arranged.
  • this structure can provide a gap between the engine room and the cargo section. By disposing the fuel gas pipe in the front compartment of the engine room, even when a gas leak occurs in the cargo equipment room, the risk of the leaked gas entering the engine room can be reduced.
  • any one or more of a cofferdam, a void, a fuel oil tank, and a water tank may be provided below the cargo equipment room and above the engine room. If the engine room upper section is provided, the structure can provide a gap between the cargo equipment room and the engine room, so that even if a gas leak occurs in the cargo equipment room, the engine room The risk of the leaked gas entering the battery can be reduced.
  • valve and valve parts are housed inside the cargo equipment room, reducing the risk of fuel gas leaking into the engine room and the risk of fuel gas leaking from the exposed piping that connects the cargo equipment room to the engine room. I can do it.
  • a liquefied gas carrier ship equipped with a liquefied gas storage equipment a ship equipped with a liquefied gas fuel tank, a floating structure equipped with a liquefied gas fuel tank, or A floating structure having a liquefied gas storage facility can be assumed.
  • the cargo equipment room is moved from between the cargo tanks to the rear of the last cargo tank by arranging the cargo equipment room above the engine room. Therefore, the laying length of the high-pressure fuel gas pipe from the cargo equipment room to the engine in the engine room, which is used to use liquefied gas such as natural gas as fuel, can be shortened. The risk due to leakage of high-pressure gas can be reduced.
  • the arrangement of the cargo equipment room between the cargo tanks of the prior art moves the cargo equipment room to the rear of the cargo compartment, and in the configuration of the present invention, the restriction that the cargo equipment room is accommodated in the space between the cargo tanks.
  • the cargo equipment room can be enlarged, and the space for the cargo equipment room between the cargo tanks is vacant, so additional cargo handling equipment such as an additional cargo handling manifold, an additional superstructure, and an additional large size It becomes possible to secure a place to install the fittings.
  • FIG. 1 is a side view schematically showing the configuration of the liquefied gas carrier ship according to the first embodiment of the present invention.
  • FIG. 2 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG.
  • FIG. 3 is a side view schematically showing the configuration of the liquefied gas carrier ship according to the second embodiment of the present invention.
  • FIG. 4 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG.
  • FIG. 5 is a side view schematically showing the configuration of the liquefied gas carrier ship according to the third embodiment of the present invention.
  • FIG. 6 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG. FIG.
  • FIG. 7 is a side view schematically showing the configuration of the liquefied gas carrier ship according to the fourth embodiment of the present invention.
  • FIG. 8 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG.
  • FIG. 9 is a side view schematically showing the configuration of the liquefied gas carrier ship according to the fifth embodiment of the present invention.
  • FIG. 10 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG.
  • FIG. 11 is a side view schematically showing a configuration of a conventional liquefied gas carrier ship.
  • FIG. 12 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG.
  • a floating structure provided with a liquefied gas storage facility As the floating structure equipped with this liquefied gas storage facility, a liquefied gas carrier ship, a ship equipped with a liquefied gas fuel tank, a floating structure equipped with a liquefied gas fuel tank, a floating structure having a liquefied gas storage facility, etc.
  • a liquefied gas carrier ship having a MOSS type spherical gas tank will be described as an example of a floating structure having a liquefied gas storage facility.
  • the present invention is not limited to this liquefied gas carrier ship, but other liquefied gas carrier ships, ships equipped with liquefied gas fuel tanks, floating structures equipped with liquefied gas fuel tanks, or floating bodies having liquefied gas storage facilities
  • the present invention can also be applied to a floating structure equipped with a liquefied gas storage facility such as a structure.
  • the floating structure equipped with the liquefied gas storage facility is a liquefied gas carrier ship or a ship equipped with a liquefied gas fuel tank, it normally sails, but the floating structure equipped with the liquefied gas storage facility.
  • the ship will sail by self-navigation only when going to an offshore installation location.
  • the liquefied gas tank and the liquefied gas fuel tank are not limited to MOSS type spherical cargo tanks, but may be other self-cubic tanks or tanks integrated with the hull structure.
  • the liquefied gas carrier ship 1A As shown in FIGS. 1 and 2, the liquefied gas carrier ship 1A according to the first embodiment of the present invention is formed around the hull by a ship bottom 2, a ship side 3, and an upper deck 4, and a cargo tank 11
  • the engine compartment 5 is provided on the rear side of the cargo compartment R1, in other words, on the stern side of the hull, and the propeller 6 is disposed on the propeller shaft extending rearward from the engine compartment 5, A rudder 7 is provided.
  • a part or all of the residential area 8 provided with the navigation bridge 8a (all in the configuration of FIGS. 1 and 2) is provided on the upper deck 4 of the bow.
  • a chimney 9 for releasing exhaust gas generated by the engine in the engine room 5 into the atmosphere is provided on the engine room 5 at the stern.
  • the cargo compartment R1 is provided with a cargo tank 11 for storing liquefied gas.
  • a cargo liquefied gas tank called a MOSS type tank is formed, and a part of the cargo tank 11 is formed. Projecting above the upper deck 4, several (in this case, four) are arranged in a line in the longitudinal direction of the hull.
  • a passage 17 that connects the cargo equipment room 12 or engine room 5 on the stern side and the navigation bridge 8a on the bow side is configured as an exposure specification passage or a passage of a closed compartment, and is provided above the upper deck 4. .
  • the navigation bridge 8a at the bow (front) and the cargo equipment room 12 and the engine room 5 at the stern side ( ⁇ ) are connected by, for example, a passage 17 that is an all-weather sky walkway configured in a closed section.
  • the navigation bridge 8a and the cargo equipment room 12 etc. can always be moved.
  • the passage 17 is provided at the center of the hull and in the upper part of the cargo tank 11. However, the passage 17 may be provided on the side of the cargo tank 11 on the starboard side or on the port side.
  • the residential area 8 is provided in front of the cargo compartment R1, that is, in front of the cargo tank 11 in the front row.
  • the navigation bridge 8a is arranged in front of the cargo tank 11 at the foremost position, so that the cargo tank 11 is removed from the navigation bridge 8a.
  • a dodger 8b is provided on the voyage bridge 8a to facilitate monitoring of the side of the hull, such as entry / exit.
  • the height of the navigation bridge 8a can be reduced on the bow side compared to the case where the navigation bridge is arranged on the stern side, and the upper structure arranged on the stern side can be reduced.
  • the height of the entire ship can be kept low because there is no need to increase it.
  • the air draft is reduced, the range in which the liquefied gas carrier 1A can navigate is increased, and the versatility of the liquefied gas carrier 1A can be enhanced. For example, by lowering the air draft, it is possible to enter two or more important ports (for example, Montart Port in France, Everett Port in the United States, etc.).
  • the cargo equipment room 12 is located behind the cargo compartment R1, that is, behind the rearmost cargo tank 11 and partly or entirely above the engine room 5 (a part in FIGS. 1 and 2). That is, the cargo equipment room 12 is disposed immediately above the engine room 5.
  • the engine room 5 is configured so that the entire area immediately below the cargo equipment room 12 is the engine room 5.
  • the cargo equipment room 12 is provided in front of the chimney 9.
  • the cargo equipment room 12 in which the facility for transferring the fuel gas is stored is placed between the cargo tanks 11 in the prior art, and in the present invention, the main machine and the power generation facility using the fuel gas are accommodated.
  • the engine room is located directly below the engine room 5. It is also possible to adopt a configuration that leads to 5 immediately.
  • the laying length of the high-pressure fuel gas pipe from the cargo equipment room 12 for using the liquefied gas as fuel to the main engine of the engine room 5 can be shortened.
  • the possibility of leakage of the high-pressure gas is reduced correspondingly, and the risk of leakage of the high-pressure gas can be reduced.
  • the range of anticorrosion measures is reduced, and the installation of electric wires such as power supply wires is facilitated.
  • the cargo handling manifold 13 can be arranged not only at one location on both sides but also at two or more locations and at any location up to all locations between the cargo tanks 11.
  • the height of the cargo equipment room 12 provided on the engine room 5 on the stern side can be low, the steel material for the anti-vibration measures of the cargo equipment room 12 becomes unnecessary, and the amount of the load can be increased accordingly. Furthermore, since the height of the stern superstructure is reduced, the influence of the wind pressure during mooring is reduced, so that the mooring equipment can be made smaller and the amount of the loaded load can be increased accordingly. Moreover, since the height of the chimney is also reduced, the material used for the chimney 9 can be reduced, and the amount of loaded load can be increased accordingly.
  • the upper side of the cargo equipment room 12 can be effectively used by this configuration, and the liquefied gas fuel tank 11a and the cargo can be used.
  • the fuel gas piping between the devices in the device room 12 can be shortened.
  • the high-pressure fuel gas pipe will not be exposed to the outside so that the crew can pass through the fuel gas pipe. Gas leakage from the piping can reduce the risk of injury and increase safety.
  • a liquefied gas carrier 1B according to a second embodiment of the present invention will be described with reference to FIG. 3 and FIG.
  • the liquefied gas carrier 1B is different from the liquefied gas carrier 1A according to the first embodiment in that the residential area 8 is provided behind the cargo equipment room 12.
  • a relatively simple layout change is required in which the residential area 8 is moved rearward from the cargo equipment room 12 and installed with the movement of the cargo equipment room 12.
  • the residential area without increasing the length of the ship. This arrangement is effective when it is not possible to secure the installation location of the cargo equipment room on the upper deck 4 of the cargo compartment and to secure the installation location of the residential district at the bow.
  • the liquefied gas carrier 1C is different from the liquefied gas carrier 1B of the second embodiment in that a section 14 is provided between the cargo equipment room 12 and the residential area 8.
  • This section 14 is provided as a section in which any one or more of a cofferdam, a void, a fuel oil tank, and a water tank are disposed, or a part of the engine room 5 is provided above the upper deck 4.
  • the engine room is provided as a projecting portion, or a machine room or a warehouse that is a separate compartment from the engine room 5 or a compartment in which both or both are arranged.
  • an air conditioner air conditioner
  • hydraulic equipment and the like are arranged.
  • the liquefied gas carrier 1D has a cofer dam, a void, a fuel oil tank, a water tank, a fuel oil transfer pump, a ballast pump, and a ballast water treatment device at the front of the engine room 5 below the cargo equipment room 12. It differs from the liquefied gas carrier ship 1B of 2nd Embodiment by the point comprised by providing the engine room front section 15 provided with any one or more.
  • This liquefied gas carrier 1E has an engine room upper section 16 provided with any one or more of a cofferdam, a void, a fuel oil tank, and a water tank in the upper part of the engine room 5 below the cargo equipment room 12.
  • the point provided and configured is different from the liquefied gas carrier ship 1B of the second embodiment.
  • the cargo equipment room 12 is arranged between the cargo tanks 11 and the rearmost cargo tank 11 by disposing the cargo equipment room 12 above the engine room 5.
  • the installation length is shortened. Therefore, the danger due to leakage of high-pressure fuel gas can be reduced.
  • the movement of the cargo equipment room 12 eliminates the restriction that the cargo equipment room 12 can be accommodated in the space between the cargo tanks 11, and the cargo equipment room 12 can be enlarged.
  • additional cargo handling equipment such as an additional cargo handling manifold, additional superstructures for other purposes, and additional large fittings.
  • the floating structure provided with the liquefied gas storage facility of the present invention the laying length of the high-pressure fuel gas pipe used for using the liquefied gas as a fuel from the cargo equipment room to the main engine of the engine room is reduced. Since it can be shortened, the danger caused by leakage of high-pressure gas can be reduced, and at the same time, the cargo equipment room can be enlarged by eliminating the restriction of being placed in the space between cargo tanks. In addition, the space for the cargo equipment room between the cargo tanks will be vacant, and it will be possible to secure a place to install additional cargo handling equipment, additional superstructure, and additional large equipment.
  • Liquefaction of a liquefied gas carrier ship equipped with a liquefied gas storage facility a ship equipped with a liquefied gas fuel tank, a floating structure equipped with a liquefied gas fuel tank, or a floating structure equipped with a liquefied gas storage facility It can be utilized to floating structure provided with a scan storage facility.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Provided are floating structures 1A-1E provided with a liquefied gas storage facility, the structures each having a cargo division R1 and an engine room 5 in the rear of the cargo division R1, and having a portion or all of a living area zone 8 provided on an upper deck 4, wherein a cargo equipment room 12 is disposed in the rear of the cargo division R1 and the cargo equipment room 12 is arranged on a portion or the entirety of the upper side of the engine room 5. Consequently, while mitigating risk due to a high-pressure gas leak of a fuel gas pipe, a space in which new material handling facilities, new superstructures, or new large-scale fittings can be additionally arranged is ensured in the floating structures 1A-1E provided with a liquefied gas storage facility.

Description

液化ガス貯蔵設備を備えた浮体構造物Floating structure with liquefied gas storage facility
　本発明は、液化ガス貯蔵設備を備えた浮体構造物に関し、より詳細には、液化ガスを一時的に貯蔵する設備と貨物機器室を備えて構成される、液化ガス運搬船、液化ガス燃料タンクを備えた船舶、液化ガス燃料タンクを備えた浮体構造物、又は、液化ガス貯蔵設備を有する浮体構造物等の液化ガス貯蔵設備を備えた浮体構造物に関する。 The present invention relates to a floating structure having a liquefied gas storage facility, and more specifically, a liquefied gas carrier ship, a liquefied gas fuel tank, comprising a facility for temporarily storing liquefied gas and a cargo equipment room. The present invention relates to a floating structure provided with a liquefied gas storage facility, such as a ship equipped with, a floating structure provided with a liquefied gas fuel tank, or a floating structure having a liquefied gas storage facility.
　液化ガス運搬船のうちの液化天然ガス運搬船（ＬＮＧ船）では、貨物である天然ガスの自然蒸発によって生じる蒸発ガスを燃料として使用するために、燃料ガス配管が、貨物機器室から居住区の横を通って機関室の後方まで敷設されており、この燃料ガス配管により、蒸発ガスは貨物区画の後方に設けられた機関室内の主機に導かれている。 Of the liquefied gas carriers, the liquefied natural gas carriers (LNG ships) use fuel gas piping from the cargo equipment room to the side of the residential area in order to use the evaporated gas generated by natural evaporation of the natural gas as cargo. The evaporative gas is led to the main engine in the engine room provided behind the cargo compartment.
　最近は、この蒸発ガスの燃料利用に関して、ＬＮＧ船の主機として二元燃料の低速ディーゼル機関を使用する技術が注目されてきており、この場合には、燃料となる天然ガスを３００ｂａｒ～４００ｂａｒ程度まで高圧化して主機に供給する必要がある。そのため、従来船の配置では、機関室から遠く離れた貨物機器室に設置された燃料供給装置から高圧配管を機関室まで敷設することになる。 Recently, with regard to the use of evaporative gas fuel, a technology that uses a dual-fuel low-speed diesel engine as a main engine of an LNG ship has attracted attention. In this case, the natural gas used as fuel is reduced to about 300 bar to 400 bar. It is necessary to increase the pressure and supply it to the main engine. Therefore, in the conventional ship arrangement, high-pressure piping is laid from the fuel supply device installed in the cargo equipment room far away from the engine room to the engine room.
　そのため、従来船のように主機に蒸気タービンを使用している場合であれば、燃料に天然ガスを使用しても、ボイラに供給する天然ガスの圧力は低圧で済むため、万一、燃料ガス配管が破損したとしても、この天然ガスの漏出による危険性はガス爆発の危険のみを考慮すればよかったが、高圧化された天然ガスの漏出となるとガス爆発の危険に加えて、高圧でのガス噴出による乗組員の負傷も懸念されるようになる。 Therefore, if a steam turbine is used for the main engine as in a conventional ship, even if natural gas is used as the fuel, the pressure of the natural gas supplied to the boiler can be low. Even if the piping is damaged, the risk of this natural gas leakage should have been considered only the risk of a gas explosion, but if a high-pressure natural gas leaks, in addition to the risk of a gas explosion, There is also concern about crew injuries caused by the eruption.
　このガス漏出に対する対策として、燃料ガス配管に覆いを設けたり、燃料ガス配管を従来同様の暴露状態で設置する場合にはより厳しい防食対策が求められたりすることから、本質的な危険性回避を達成することが難しくなるだけでなく、船のコストが上昇することにもなる。 As countermeasures against this gas leakage, since the fuel gas piping is provided with a cover or when the fuel gas piping is installed in the same exposure state as before, stricter anti-corrosion measures are required. Not only will it be difficult to achieve, but it will also increase the cost of the ship.
　また、天然ガス等の液化ガスの高圧化のための機器類として、大型電気機器を使用する必要が生じるため、大型電気機器への動力供給用の電気配線の増設が必要になり、この電線導設が難しく、コスト高となる。 In addition, it is necessary to use large electrical equipment as equipment for increasing the pressure of liquefied gas such as natural gas. Therefore, it is necessary to add electrical wiring for power supply to the large electrical equipment. Installation is difficult and costly.
　また、この液化ガスの高圧化のための大型電気機器を設けるためには、貨物機器室における設置スペースが必要になり、貨物機器室を広げる必要が生じる。更に、複数の港に出入港できるようにするためは、従来船の設備に、新たな荷役設備、別の用途の新たな船楼、新たな大型艤装品を追加して設ける必要が生じてきている。 Also, in order to provide a large electric device for increasing the pressure of this liquefied gas, an installation space in the cargo equipment room is required, and the cargo equipment room needs to be expanded. In addition, in order to be able to enter and leave multiple ports, it has become necessary to provide new cargo handling equipment, new superstructures for different uses, and new large equipment in addition to conventional ship equipment. Yes.
　しかしながら、ＭＯＳＳ型ＬＮＧ船では、球形の貨物タンクの上側が上甲板上に大きく突出しているため、上甲板上に自由に設備を設けることができる場所が少なく、貨物機器室、荷役用マニホールド等の荷役設備、その他大型艤装品を設けるための場所は、上甲板上では限られており、設置場所が限定されてしまう。 However, in the MOSS type LNG ship, the upper side of the spherical cargo tank protrudes greatly on the upper deck. Locations for installing cargo handling equipment and other large equipment are limited on the upper deck, and the installation location is limited.
　従来の液化ガス運搬船では、貨物機器室は、まれには、小型の船においては船首部の最前端の液化ガス貯蔵設備であるホールドスペースよりも前方に配置する事があるが、一般的には、図１１及び図１２に例示するように、液化ガス運搬船１Ｘの貨物機器室１２は、防爆対策等が求められる貨物区画Ｒ１を徒に広げないように、貨物タンク１１同士の間に設けられている。また、荷役用マニホールド１３が貨物区画Ｒ１の貨物タンク１１同士の間に設けられ、居住区８及び機関室５は貨物区画Ｒ１の後方に設けられている。 In conventional liquefied gas carriers, the cargo equipment room is rarely placed in front of the hold space, which is the liquefied gas storage facility at the foremost end of the bow, in small ships. 11 and 12, the cargo equipment room 12 of the liquefied gas carrier ship 1X is provided between the cargo tanks 11 so as not to open the cargo compartment R1 for which explosion-proof measures are required. Yes. In addition, a cargo handling manifold 13 is provided between the cargo tanks 11 in the cargo section R1, and the residence section 8 and the engine room 5 are provided at the rear of the cargo section R1.
　また、この例として、例えば、日本出願の特開平７－３０１３７２号公報（段落〔０００２〕及び〔００２５〕、図５）に記載されているように、ＭＯＳＳ型の球形の貨物タンクを搭載しているＬＮＧ船の場合で、貨物機械室（貨物機器室）を貨物区画の上甲板上で、最後方の貨物タンクとその前方の貨物タンクとの間に設け、この前方の貨物タンクとさらにその前方の貨物タンクとの間にローデイングマニホールド（荷役用マニホールド）を設けたＬＮＧ船が図示されている。 As an example of this, as described in Japanese Patent Application Laid-Open No. 7-301372 (paragraphs [0002] and [0025], FIG. 5), a MOSS type spherical cargo tank is mounted as an example. In the case of an LNG ship, a cargo machine room (cargo equipment room) is provided on the upper deck of the cargo section between the rearmost cargo tank and the front cargo tank. The LNG ship which provided the loading manifold (manifold for cargo handling) between these cargo tanks is illustrated.
　そのため、従来船の機関室の上に居住区を設ける配置を維持した状態で、貨物区画の前方又は後方の上甲板上に、従来船よりも大きな貨物機器室を設けようとすると、少なくとも、この貨物機器室の長さ分だけ、ＬＮＧ船の長さを長くする必要が生じるので、ＬＮＧ船の価格が大きく上昇してしまうことになる。 For this reason, if an attempt is made to provide a cargo equipment room larger than the conventional ship on the upper deck in front of or behind the cargo section while maintaining the arrangement of providing the residential area on the engine room of the conventional ship, at least this Since it is necessary to increase the length of the LNG ship by the length of the cargo equipment room, the price of the LNG ship will increase significantly.
　また、荷役用マニホールドの場所に関しては、港がある程度限定される場合には、設置場所が１カ所に限定されることが多い為、貨物機器室と荷役用マニホールドと舷梯を貨物タンク間に設置することが可能であるが、港が限定できない場合には、複数の荷役用マニホールドを設ける必要性が生じ、設置場所の確保が重要になる。また、貨物タンクの数が少なくなった場合には、そもそも設置可能な場所が減少してしまうので、この設置場所の確保はより重要な問題となる。 In addition, regarding the location of the cargo handling manifold, if the port is limited to some extent, the installation location is often limited to one location, so the cargo equipment room, the cargo handling manifold and the ladder are installed between the cargo tanks. However, when the port cannot be limited, it becomes necessary to provide a plurality of cargo handling manifolds, and securing the installation location becomes important. In addition, when the number of cargo tanks decreases, the number of places where the cargo tanks can be installed is reduced.
日本出願の特開平７－３０１３７２号公報（段落〔０００２〕及び〔００２５〕、図５）Japanese Patent Application Laid-Open No. 7-301372 (paragraphs [0002] and [0025], FIG. 5)
　本発明は、上記の状況を鑑みてなされたものであり、その目的は、液化ガス貯蔵設備を備えた浮体構造物において、高圧の燃料ガス配管からの高圧ガスの漏洩による危険性を軽減しつつ、新たな荷役設備、新たな船楼、新たな大型艤装品を追加して配置できる場所を確保できる液化ガス貯蔵設備を備えた浮体構造物を提供することにある。 The present invention has been made in view of the above situation, and its object is to reduce the risk of leakage of high-pressure gas from high-pressure fuel gas piping in a floating structure equipped with a liquefied gas storage facility. Another object of the present invention is to provide a floating structure equipped with a liquefied gas storage facility that can secure a place where a new cargo handling facility, a new superstructure, and a new large-scale fitting can be added.
　上記のような目的を達成するための本発明の液化ガス貯蔵設備を備えた浮体構造物は、貨物区画と該貨物区画の後方に機関室を有し、かつ、居住区の一部又は全部を上甲板上に設けた、液化ガス貯蔵設備を備えた浮体構造物において、前記貨物区画の後方で、かつ、前記機関室の上側の一部または全部に貨物機器室を配置して構成される。なお、この機関室の上側の一部又は全部に貨物機器室を配置するとは、機関室の天井の一部が貨物機器室の床になる場合と機関室の天井の全部が貨物機器室の床になる場合とを示している。 In order to achieve the above object, a floating structure having a liquefied gas storage facility of the present invention has a cargo compartment and an engine room behind the cargo compartment, and a part or all of the residential district is provided. In the floating structure provided with a liquefied gas storage facility provided on the upper deck, a cargo equipment room is arranged behind the cargo compartment and partly or entirely above the engine room. It should be noted that the cargo equipment room is arranged at a part or all of the upper side of the engine room when a part of the ceiling of the engine room becomes the floor of the cargo equipment room and when the whole ceiling of the engine room is the floor of the cargo equipment room. Shows the case.
　この構成によれば、燃料ガスを移送するための設備が格納された貨物機器室を、貨物タンク同士の間から、燃料ガスを使用する主機や発電設備が納められた機関室の直上に移設したので、天然ガス等の液化ガスを燃料として使用するために設けられる燃料ガス配管を、貨物機器室から一度外に出てから直下の機関室へ導く構成だけでなく、貨物機器室からその直下にある機関室へ直ちに導く構成を採用することもできる。 According to this configuration, the cargo equipment room in which the facility for transferring fuel gas is stored has been moved from between the cargo tanks directly above the engine room in which the main engine and power generation facilities that use fuel gas are stored. Therefore, the fuel gas piping provided to use liquefied gas such as natural gas as fuel is not only configured to go out of the cargo equipment room and then to the engine room directly below, but also directly below the cargo equipment room. It is also possible to adopt a configuration that immediately leads to a certain engine room.
　その結果、貨物機器室から機関室の主機に至る高圧の燃料ガス配管の敷設長さを短くすることができるので、燃料ガスの漏洩の可能性が低くなり、高圧の燃料ガスの漏洩による爆発及び人体への受傷や危険性を軽減することができる。しかも、防食対策の範囲も小さくなり、動力供給電線などの電線導設も容易になる。 As a result, the laying length of the high-pressure fuel gas piping from the cargo equipment room to the main engine in the engine room can be shortened, so that the possibility of fuel gas leakage is reduced, and explosion due to leakage of high-pressure fuel gas and Injuries and dangers to the human body can be reduced. In addition, the range of anticorrosion measures is reduced, and it is easy to install electric wires such as power supply wires.
　また、居住区の横を高圧の燃料ガス配管が通らない構成のため、ガス漏洩時に、危険な燃料ガスが居住区に侵入して爆発したり、高圧の燃料ガスが直接乗組員を負傷させたりする可能性を著しく低下させることができる。 In addition, because the high-pressure fuel gas piping does not pass next to the residential area, dangerous gas can enter the residential area and explode when gas leaks, or high-pressure fuel gas can directly injure the crew. The possibility of doing so can be significantly reduced.
　それと共に、貨物タンク間に貨物機器室を設けるためのスペースを確保する必要がなくなるので、貨物タンク間に他の設備を設置することが可能となり、追加の荷役用マニホールドなどの追加の荷役設備、別の用途の追加の船楼、追加の大型艤装品を設置する場所を確保することができるようになる。 At the same time, it is not necessary to secure a space for the cargo equipment room between the cargo tanks, so that it is possible to install other equipment between the cargo tanks, additional cargo handling equipment such as an additional cargo handling manifold, It will be possible to secure a place to install an additional superstructure for another use and an additional large-sized fitting.
　上記の液化ガス貯蔵設備を備えた浮体構造物において、前記居住区を前記貨物区画の前方に設けて構成すると、この構成により、居住区の上に航海船橋を設けることができるようになり、この貨物区画前方の居住区に航海船橋を設けた場合には、貨物タンクを球形のＭＯＳＳ型タンクで形成した場合のように大型構造物が上甲板上に突出している浮体構造物において問題となる前方視界を容易に確保できるようになる。 In the floating structure provided with the above liquefied gas storage facility, when the residential area is provided in front of the cargo compartment, this structure makes it possible to provide a navigation bridge on the residential area. When a voyage bridge is installed in the residential area in front of the cargo compartment, the front is a problem in a floating structure in which a large structure projects on the upper deck, as in the case where the cargo tank is formed of a spherical MOSS tank. The field of view can be easily secured.
　また、上記の液化ガス貯蔵設備を備えた浮体構造物において、前記居住区を前記貨物機器室の後方に設けて構成すると、この構成によれば、貨物機器室の移動に伴い、居住区を貨物機器室より後方に移動して設置するという比較的簡単な配置変更で済むことになる。特に、船首部に居住区を設ける場所が無い場合は、船の長さを長くすること無く居住区を配置することが可能になる。また、貨物区画の上甲板上に貨物機器室の設置場所を確保できず且つ船首部にも居住区の設置場所を確保できないという場合には、この配置が有効となる。 Further, in the floating structure provided with the above-described liquefied gas storage facility, when the residential area is provided at the rear of the cargo equipment room, according to this configuration, the residential area is changed into a cargo as the cargo equipment room moves. A relatively simple layout change is required, such as moving backward from the equipment room. In particular, when there is no place to provide a residential area at the bow, it is possible to arrange the residential area without increasing the length of the ship. This arrangement is effective when it is not possible to secure the installation location of the cargo equipment room on the upper deck of the cargo compartment, and it is also impossible to secure the installation location of the residential district at the bow.
　更に、上記の液化ガス貯蔵設備を備えた浮体構造物において、前記貨物機器室の後方に、コファーダム、空所、燃料油タンク、水タンクのうちのいずれか１つ以上を配設した区画を設け、この区画の後方に前記居住区を設けて構成すると、この区画の介在により貨物機器室と居住区を隣接させずに済むので、貨物機器室においてガス漏洩が発生した場合でも、居住区内にその漏洩したガスが侵入する危険性を減少できる。 Furthermore, in the floating structure provided with the above liquefied gas storage facility, a section in which any one or more of a cofer dam, a void, a fuel oil tank, and a water tank are disposed is provided behind the cargo equipment room. If the residential area is provided behind the compartment, the cargo equipment room and the residential area need not be adjacent to each other due to the interposition of the compartment. Therefore, even if a gas leak occurs in the cargo equipment room, The risk of the leaked gas entering can be reduced.
　若しくは、上記の液化ガス貯蔵設備を備えた浮体構造物において、前記貨物機器室の後方に、前記機関室の一部を上甲板より上に突設して設けた機関室突設部を配置し、この機関室突設部の後方に前記居住区を設けて構成すると、この機関室突設部の介在により貨物機器室と居住区を隣接させずに済むので、貨物機器室においてガス漏洩が発生した場合でも、居住区内にその漏洩したガスが侵入する危険性を減少できる。 Alternatively, in the floating structure provided with the above liquefied gas storage facility, an engine room protruding portion provided by protruding a part of the engine room above the upper deck is disposed behind the cargo equipment room. If the residential area is provided behind the engine room protruding portion, the cargo equipment room and the residential area do not have to be adjacent to each other by the intervention of the engine room protruding portion, so that gas leakage occurs in the cargo equipment room. Even in this case, the risk of the leaked gas entering the residential area can be reduced.
　若しくは、上記の液化ガス貯蔵設備を備えた浮体構造物において、前記貨物機器室の後方に、前記機関室とは別の区画となる機械室若しくは倉庫のいずれか一方又は両方を配置する区画を配置し、この区画の後方に前記居住区を設けて構成すると、この区画の介在により貨物機器室と居住区を隣接させずに済むので、貨物機器室においてガス漏洩が発生した場合でも、居住区内にその漏洩したガスが侵入する危険性を減少できる。なお、この機械室には、空気調整装置（エアコン）や油圧機器などが配置される。 Alternatively, in the floating structure provided with the above liquefied gas storage facility, a section in which either one or both of a machine room and a warehouse, which is a section different from the engine room, is disposed behind the cargo equipment room. However, if the residential area is provided at the rear of the compartment, the cargo equipment room and the residential area do not have to be adjacent due to the interposition of the compartment, so even if a gas leak occurs in the cargo equipment room, The risk of the leaked gas entering the battery can be reduced. In this machine room, an air conditioner (air conditioner), hydraulic equipment, and the like are arranged.
　上記の液化ガス貯蔵設備を備えた浮体構造物において、前記貨物機器室の下側の前記機関室の前部に、コファーダム、空所、燃料油タンク、水タンク、燃料油移送ポンプ、バラストポンプ、バラスト水処理装置のうちのいずれか１つ以上を備えた機関室前部区画を設けて構成すると、この構成により、機関室と貨物区画との間に空隙を設けることができ、貨物機器室からの燃料ガス配管をこの機関室前部区画に配設することにより、貨物機器室においてガス漏洩が発生した場合でも、機関室内にその漏洩したガスが侵入する危険性を減少することができる。 In the floating structure provided with the above liquefied gas storage facility, a cofer dam, a void, a fuel oil tank, a water tank, a fuel oil transfer pump, a ballast pump, If the engine room front section provided with any one or more of the ballast water treatment devices is provided, this structure can provide a gap between the engine room and the cargo section. By disposing the fuel gas pipe in the front compartment of the engine room, even when a gas leak occurs in the cargo equipment room, the risk of the leaked gas entering the engine room can be reduced.
　あるいは、上記の液化ガス貯蔵設備を備えた浮体構造物において、前記貨物機器室の下側で前記機関室の上部に、コファーダム、空所、燃料油タンク、水タンクのうちのいずれか１つ以上を配設した機関室上部区画を設けて構成すると、この構成により、貨物機器室と機関室との間に空隙を設けることができるので、貨物機器室においてガス漏洩が発生した場合でも、機関室内にその漏洩したガスが侵入する危険性を減少することができる。 Alternatively, in the floating structure provided with the above-described liquefied gas storage facility, any one or more of a cofferdam, a void, a fuel oil tank, and a water tank may be provided below the cargo equipment room and above the engine room. If the engine room upper section is provided, the structure can provide a gap between the cargo equipment room and the engine room, so that even if a gas leak occurs in the cargo equipment room, the engine room The risk of the leaked gas entering the battery can be reduced.
　上記の液化ガス貯蔵設備を備えた浮体構造物において、前記貨物機器室の上側にデッキタンク若しくは液化ガス燃料タンクを設けて構成すると、この構成により、貨物機器室の上側を有効利用でき、液化ガス燃料タンクを設けた場合は、液化ガス燃料タンクと貨物機器室の機器類との間の燃料ガス配管を短くできる。 In the floating structure provided with the above liquefied gas storage facility, when a deck tank or a liquefied gas fuel tank is provided on the upper side of the cargo equipment room, this structure enables effective use of the upper side of the cargo equipment room. When the fuel tank is provided, the fuel gas pipe between the liquefied gas fuel tank and the equipment in the cargo equipment room can be shortened.
　上記の液化ガス貯蔵設備を備えた浮体構造物において、前記貨物機器室の内部に、主機に導かれる燃料ガス配管のフランジ又は弁を設けて構成すると、この構成により燃料ガスの漏洩が起こりやすいフランジの部分や弁の部分が貨物機器室の内部に収納されるので、機関室内に燃料ガスが漏洩する危険性及び貨物機器室から機関室へと繋ぐ暴露配管において燃料ガスが漏洩する危険性を低くする事ができる。 In the floating structure provided with the above-mentioned liquefied gas storage facility, if a flange or valve of a fuel gas pipe led to the main engine is provided inside the cargo equipment room, a flange that is likely to leak fuel gas due to this configuration The valve and valve parts are housed inside the cargo equipment room, reducing the risk of fuel gas leaking into the engine room and the risk of fuel gas leaking from the exposed piping that connects the cargo equipment room to the engine room. I can do it.
　そして、上記の液化ガス貯蔵設備を備えた浮体構造物としては、液化ガス貯蔵設備を備えた液化ガス運搬船、液化ガス燃料タンクを備えた船舶、液化ガス燃料タンクを備えた浮体構造物、又は、液化ガス貯蔵設備を有する浮体構造物を想定できる。 And as a floating structure equipped with the above liquefied gas storage equipment, a liquefied gas carrier ship equipped with a liquefied gas storage equipment, a ship equipped with a liquefied gas fuel tank, a floating structure equipped with a liquefied gas fuel tank, or A floating structure having a liquefied gas storage facility can be assumed.
　本発明の液化ガス貯蔵設備を備えた浮体構造物によれば、貨物機器室を機関室の上側に配置することによって、貨物機器室が貨物タンク同士の間から最後端の貨物タンクの後方に移動することになり、天然ガス等の液化ガスを燃料として使用するために使用される、貨物機器室から機関室の主機に至る高圧の燃料ガス配管において、その敷設長さを短くすることができるので、高圧ガスの漏洩による危険性を軽減することができる。 According to the floating structure provided with the liquefied gas storage facility of the present invention, the cargo equipment room is moved from between the cargo tanks to the rear of the last cargo tank by arranging the cargo equipment room above the engine room. Therefore, the laying length of the high-pressure fuel gas pipe from the cargo equipment room to the engine in the engine room, which is used to use liquefied gas such as natural gas as fuel, can be shortened. The risk due to leakage of high-pressure gas can be reduced.
　それと共に、従来技術の貨物タンク間の貨物機器室の配置から、貨物機器室を貨物区画の後方に移動することにより、本発明の構成では、貨物タンク間のスペースに貨物機器室を収めるという制約を無くすことができ、貨物機器室を大きくできる上に、貨物タンク間の貨物機器室があったスペースが空くので、追加の荷役用マニホールドなどの追加の荷役設備、追加の船楼、追加の大型艤装品を設置する場所を確保することができるようになる。 At the same time, the arrangement of the cargo equipment room between the cargo tanks of the prior art moves the cargo equipment room to the rear of the cargo compartment, and in the configuration of the present invention, the restriction that the cargo equipment room is accommodated in the space between the cargo tanks. And the cargo equipment room can be enlarged, and the space for the cargo equipment room between the cargo tanks is vacant, so additional cargo handling equipment such as an additional cargo handling manifold, an additional superstructure, and an additional large size It becomes possible to secure a place to install the fittings.
図１は、本発明に係る第１の実施の形態の液化ガス運搬船の構成を模式的に示す側面図である。FIG. 1 is a side view schematically showing the configuration of the liquefied gas carrier ship according to the first embodiment of the present invention. 図２は、図１の液化ガス運搬船の構成を模式的に示す平面図である。FIG. 2 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG. 図３は、本発明に係る第２の実施の形態の液化ガス運搬船の構成を模式的に示す側面図である。FIG. 3 is a side view schematically showing the configuration of the liquefied gas carrier ship according to the second embodiment of the present invention. 図４は、図３の液化ガス運搬船の構成を模式的に示す平面図である。FIG. 4 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG. 図５は、本発明に係る第３の実施の形態の液化ガス運搬船の構成を模式的に示す側面図である。FIG. 5 is a side view schematically showing the configuration of the liquefied gas carrier ship according to the third embodiment of the present invention. 図６は、図５の液化ガス運搬船の構成を模式的に示す平面図である。FIG. 6 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG. 図７は、本発明に係る第４の実施の形態の液化ガス運搬船の構成を模式的に示す側面図である。FIG. 7 is a side view schematically showing the configuration of the liquefied gas carrier ship according to the fourth embodiment of the present invention. 図８は、図７の液化ガス運搬船の構成を模式的に示す平面図である。FIG. 8 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG. 図９は、本発明に係る第５の実施の形態の液化ガス運搬船の構成を模式的に示す側面図である。FIG. 9 is a side view schematically showing the configuration of the liquefied gas carrier ship according to the fifth embodiment of the present invention. 図１０は、図９の液化ガス運搬船の構成を模式的に示す平面図である。FIG. 10 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG. 図１１は、従来技術の液化ガス運搬船の構成を模式的に示す側面図である。FIG. 11 is a side view schematically showing a configuration of a conventional liquefied gas carrier ship. 図１２は、図１１の液化ガス運搬船の構成を模式的に示す平面図である。FIG. 12 is a plan view schematically showing the configuration of the liquefied gas carrier ship of FIG.
　以下、本発明に係る実施の形態の液化ガス貯蔵設備を備えた浮体構造物について、図面を参照しながら説明する。この液化ガス貯蔵設備を備えた浮体構造物としては、液化ガス運搬船、液化ガス燃料タンクを備えた船舶、液化ガス燃料タンクを備えた浮体構造物、又は、液化ガス貯蔵設備を有する浮体構造物等があるが、ここでは、液化ガス貯蔵設備を備えた浮体構造物として、ＭＯＳＳ型の球形ガスタンクを備えた液化ガス運搬船を例にして説明する。 Hereinafter, a floating structure provided with a liquefied gas storage facility according to an embodiment of the present invention will be described with reference to the drawings. As the floating structure equipped with this liquefied gas storage facility, a liquefied gas carrier ship, a ship equipped with a liquefied gas fuel tank, a floating structure equipped with a liquefied gas fuel tank, a floating structure having a liquefied gas storage facility, etc. However, here, a liquefied gas carrier ship having a MOSS type spherical gas tank will be described as an example of a floating structure having a liquefied gas storage facility.
　しかし、本発明はこの液化ガス運搬船に限定されず、それ以外の液化ガス運搬船、液化ガス燃料タンクを備えた船舶、液化ガス燃料タンクを備えた浮体構造物、又は、液化ガス貯蔵設備を有する浮体構造物等の液化ガス貯蔵設備を備えた浮体構造物にも適用可能である。 However, the present invention is not limited to this liquefied gas carrier ship, but other liquefied gas carrier ships, ships equipped with liquefied gas fuel tanks, floating structures equipped with liquefied gas fuel tanks, or floating bodies having liquefied gas storage facilities The present invention can also be applied to a floating structure equipped with a liquefied gas storage facility such as a structure.
　なお、液化ガス貯蔵設備を備えた浮体構造物が、液化ガス運搬船、液化ガス燃料タンクを備えた船舶の場合には、通常時は航海しているが、液化ガス貯蔵設備を備えた浮体構造物が、液化ガス燃料タンクを備えた浮体構造物、又は、液化ガス貯蔵設備を有する浮体構造物である場合には、洋上設置場所まで行く時のみ自力航行によって航海することになる。 If the floating structure equipped with the liquefied gas storage facility is a liquefied gas carrier ship or a ship equipped with a liquefied gas fuel tank, it normally sails, but the floating structure equipped with the liquefied gas storage facility. However, in the case of a floating structure having a liquefied gas fuel tank or a floating structure having a liquefied gas storage facility, the ship will sail by self-navigation only when going to an offshore installation location.
　また、本発明においては、液化ガスタンクや液化ガス燃料タンクは、ＭＯＳＳ型の球形の貨物タンクのみでなく、それ以外の自立方形タンクや船体構造と一体型のタンクであってもよい。 In the present invention, the liquefied gas tank and the liquefied gas fuel tank are not limited to MOSS type spherical cargo tanks, but may be other self-cubic tanks or tanks integrated with the hull structure.
　そして、図１及び図２に示すように、本発明の係る第１の実施の形態の液化ガス運搬船１Ａは、船底２と船側３と上甲板４によって、船体の周囲を形成され、貨物タンク１１を有する貨物区画Ｒ１と、この貨物区画Ｒ１の後方、言い換えれば、船体の船尾側に機関室５が設けられており、この機関室５から後方に延びるプロペラシャフトにプロペラ６が配置され、その後ろに舵７が設けられている。 As shown in FIGS. 1 and 2, the liquefied gas carrier ship 1A according to the first embodiment of the present invention is formed around the hull by a ship bottom 2, a ship side 3, and an upper deck 4, and a cargo tank 11 The engine compartment 5 is provided on the rear side of the cargo compartment R1, in other words, on the stern side of the hull, and the propeller 6 is disposed on the propeller shaft extending rearward from the engine compartment 5, A rudder 7 is provided.
　また、航海船橋８ａを備えた居住区８の一部または全部（図１及び図２の構成では全部）が、船首部の上甲板４の上に設けられる。また、船尾の機関室５の上に、機関室５内のエンジンで発生する排気ガスを大気中に放出するための煙突９が設けられる。 Also, a part or all of the residential area 8 provided with the navigation bridge 8a (all in the configuration of FIGS. 1 and 2) is provided on the upper deck 4 of the bow. A chimney 9 for releasing exhaust gas generated by the engine in the engine room 5 into the atmosphere is provided on the engine room 5 at the stern.
　また、貨物区画Ｒ１には、液化ガスを貯蔵するために、貨物タンク１１が設けられるが、ここでは、ＭＯＳＳ型タンクと呼ばれる球形の液化ガスタンクで形成されており、この貨物タンク１１の一部が上甲板４より上に突出して、船体の前後方向に一列に数個（ここでは４個）並んで設けられている。 The cargo compartment R1 is provided with a cargo tank 11 for storing liquefied gas. Here, a cargo liquefied gas tank called a MOSS type tank is formed, and a part of the cargo tank 11 is formed. Projecting above the upper deck 4, several (in this case, four) are arranged in a line in the longitudinal direction of the hull.
　更に、船尾側の貨物機器室１２や機関室５と船首側の航海船橋８ａとを繋ぐ通行路１７を、暴露仕様の通路又は閉囲区画の通路として構成して、上甲板４より上部に設ける。つまり、船首部（表）の航海船橋８ａと船尾側（艫）の貨物機器室１２や機関室５とを例えば閉囲区画に構成された全天候型天空歩路となる通行路１７で接続して、航海船橋８ａと貨物機器室１２等の間を常に往来可能とする。なお、ここでは、この通行路１７を船体中央で、かつ、貨物タンク１１の上部に設けているが、この通行路１７を船体右舷または左舷側の貨物タンク１１の横側に設けてもよい。 Further, a passage 17 that connects the cargo equipment room 12 or engine room 5 on the stern side and the navigation bridge 8a on the bow side is configured as an exposure specification passage or a passage of a closed compartment, and is provided above the upper deck 4. . In other words, the navigation bridge 8a at the bow (front) and the cargo equipment room 12 and the engine room 5 at the stern side (艫) are connected by, for example, a passage 17 that is an all-weather sky walkway configured in a closed section. The navigation bridge 8a and the cargo equipment room 12 etc. can always be moved. Here, the passage 17 is provided at the center of the hull and in the upper part of the cargo tank 11. However, the passage 17 may be provided on the side of the cargo tank 11 on the starboard side or on the port side.
　さらに、第１の実施の形態の液化ガス運搬船１Ａにおいては、居住区８は、貨物区画Ｒ１の前方に、つまり、最前列の貨物タンク１１より前方に設けられる。この構成で、居住区８の上に航海船橋８ａを設けて構成すると、航海船橋８ａが最前の位置の貨物タンク１１よりも前方に配置されることになるので、貨物タンク１１が航海船橋８ａからの前方見通しの邪魔にならなくなり、前方視界を良好に確保できるようになるので、操船性が向上する。特に、貨物タンク１１を球形のＭＯＳＳ型タンクのように大型構造物が上甲板４上に突出している場合では、この背が高い大型構造物のために視界確保が困難となるので、この構成を採用することの効果が大きくなる。また、この航海船橋８ａにはドジャー８ｂを設けて、出入港などの船体の側方の監視を容易にする。 Furthermore, in the liquefied gas carrier 1A of the first embodiment, the residential area 8 is provided in front of the cargo compartment R1, that is, in front of the cargo tank 11 in the front row. In this configuration, when the navigation bridge 8a is provided on the residential area 8, the navigation bridge 8a is arranged in front of the cargo tank 11 at the foremost position, so that the cargo tank 11 is removed from the navigation bridge 8a. As a result, it becomes possible to secure a good front view, so that the maneuverability is improved. In particular, when the cargo tank 11 has a large structure protruding on the upper deck 4 like a spherical MOSS type tank, it is difficult to ensure visibility because of the tall large structure. The effect of adopting is increased. In addition, a dodger 8b is provided on the voyage bridge 8a to facilitate monitoring of the side of the hull, such as entry / exit.
　また、この前方視界の観点から、航海船橋を船尾側に配置する場合に比べて、船首側では、航海船橋８ａの高さを低くすることができ、また、船尾側に配置する上部構造物を高くする必要がなくなるので、船全体の高さを低く抑えることできる。その結果、エアドラフトが小さくなるので、液化ガス運搬船１Ａが航行できる範囲が拡大して、この液化ガス運搬船１Ａの汎用性を高めることができる。例えば、エアドラフトが低くなることにより、２港以上の重要な港（例えば、フランスのモントアール港や、アメリカ合衆国のエバレット港等）に入港が可能となる。 In addition, from the viewpoint of the forward view, the height of the navigation bridge 8a can be reduced on the bow side compared to the case where the navigation bridge is arranged on the stern side, and the upper structure arranged on the stern side can be reduced. The height of the entire ship can be kept low because there is no need to increase it. As a result, since the air draft is reduced, the range in which the liquefied gas carrier 1A can navigate is increased, and the versatility of the liquefied gas carrier 1A can be enhanced. For example, by lowering the air draft, it is possible to enter two or more important ports (for example, Montart Port in France, Everett Port in the United States, etc.).
　さらに、貨物機器室１２が、貨物区画Ｒ１の後方、つまり、最後端の貨物タンク１１より後方で、かつ、機関室５の上側の一部または全部（図１及び図２では一部）に、つまり、機関室５の直上に貨物機器室１２が配置される。言い換えれば、貨物機器室１２の直下の全部が機関室５になるように構成される。なお、この貨物機器室１２は、煙突９よりも前方に設けられる。 Further, the cargo equipment room 12 is located behind the cargo compartment R1, that is, behind the rearmost cargo tank 11 and partly or entirely above the engine room 5 (a part in FIGS. 1 and 2). That is, the cargo equipment room 12 is disposed immediately above the engine room 5. In other words, the engine room 5 is configured so that the entire area immediately below the cargo equipment room 12 is the engine room 5. The cargo equipment room 12 is provided in front of the chimney 9.
　これにより、燃料ガスを移送する為の設備が格納された貨物機器室１２を、従来技術における貨物タンク１１同士の間の配置から、本発明では、燃料ガスを使用する主機や発電設備が納められた機関室５の直上に移設したので、貨物機器室１２から出た燃料ガス配管を、貨物機器室から一度外に出てから直下の機関室へ導かれる構成だけでなく、直下にある機関室５へ直ちに導く構成を採用することもできる。 As a result, the cargo equipment room 12 in which the facility for transferring the fuel gas is stored is placed between the cargo tanks 11 in the prior art, and in the present invention, the main machine and the power generation facility using the fuel gas are accommodated. In addition to the configuration in which the fuel gas piping from the cargo equipment room 12 is once taken out of the cargo equipment room and led to the engine room directly below, the engine room is located directly below the engine room 5. It is also possible to adopt a configuration that leads to 5 immediately.
　これにより、液化ガスを燃料として使用するための貨物機器室１２から機関室５の主機に至る高圧の燃料ガス配管の敷設長さを短くすることができるようになる。この燃料ガス配管の長さが短くなることにより、その分、高圧ガスの漏洩の可能性が低くなり、高圧ガスの漏洩による危険性を軽減することができる。しかも、防食対策の範囲も小さくなり、電力供給電線などの電線導設も容易になる。 Thereby, the laying length of the high-pressure fuel gas pipe from the cargo equipment room 12 for using the liquefied gas as fuel to the main engine of the engine room 5 can be shortened. By shortening the length of the fuel gas pipe, the possibility of leakage of the high-pressure gas is reduced correspondingly, and the risk of leakage of the high-pressure gas can be reduced. In addition, the range of anticorrosion measures is reduced, and the installation of electric wires such as power supply wires is facilitated.
　また、居住区８の横を高圧の燃料ガス配管が通らなくなるため、万一のガス漏洩時においても、危険な燃料ガスが居住区８に侵入したり、高圧の燃料ガスが直接乗組員を負傷させたりする可能性を著しく低下させることができる。 In addition, because the high-pressure fuel gas pipe does not pass beside the residential area 8, even in the event of a gas leak, dangerous fuel gas can enter the residential area 8, or high-pressure fuel gas can directly injure the crew. The possibility of making it fall can be reduced significantly.
　それと共に、貨物タンク１１同士の間に貨物機器室１２を設けるためのスペースを確保する必要がなくなるので、貨物タンク１１間に他の設備を設置することが可能となり、追加の荷役設備、追加の船楼、追加の大型艤装品を設置する場所を確保することができるようになる。 At the same time, it becomes unnecessary to secure a space for providing the cargo equipment room 12 between the cargo tanks 11, so that it becomes possible to install other equipment between the cargo tanks 11, additional cargo handling equipment, additional It will be possible to secure a place to install the superstructure and additional large fittings.
　これにより、貨物タンク１１同士の間で荷役用マニホールド１３や舷梯など艤装品の設置できる場所が広がる。つまり、荷役用マニホールド１３を両舷においてそれぞれ１箇所だけでなく、２箇所以上で、かつ、貨物タンク１１間の全部の箇所までの任意の場所に配置することができるようになる。 This expands the space where cargo equipment such as the cargo handling manifold 13 and Bandai can be installed between the cargo tanks 11. That is, the cargo handling manifold 13 can be arranged not only at one location on both sides but also at two or more locations and at any location up to all locations between the cargo tanks 11.
　さらに、船尾側の機関室５の上に設けられる貨物機器室１２の高さが低くて済むので、貨物機器室１２の防振対策のための鋼材が不要となり、その分載荷重量を増加できる。さらに、この船尾の上部構造物の高さが低くなることで、係留中の風圧力による影響が少なくなるので、係留用艤装品を小さくすることができ、その分載荷重量を増加できる。また、煙突高さも低くなるので、煙突９の使用材料を減少でき、その分載荷重量を増加できる。 Furthermore, since the height of the cargo equipment room 12 provided on the engine room 5 on the stern side can be low, the steel material for the anti-vibration measures of the cargo equipment room 12 becomes unnecessary, and the amount of the load can be increased accordingly. Furthermore, since the height of the stern superstructure is reduced, the influence of the wind pressure during mooring is reduced, so that the mooring equipment can be made smaller and the amount of the loaded load can be increased accordingly. Moreover, since the height of the chimney is also reduced, the material used for the chimney 9 can be reduced, and the amount of loaded load can be increased accordingly.
　また、この貨物機器室１２の上側にデッキタンク（図示しない）若しくは液化ガス燃料タンク１１ａを設けて構成すると、この構成により、貨物機器室１２の上側を有効利用でき、液化ガス燃料タンク１１ａと貨物機器室１２の機器類との間の燃料ガス配管を短くできる。 Further, if a deck tank (not shown) or a liquefied gas fuel tank 11a is provided on the upper side of the cargo equipment room 12, the upper side of the cargo equipment room 12 can be effectively used by this configuration, and the liquefied gas fuel tank 11a and the cargo can be used. The fuel gas piping between the devices in the device room 12 can be shortened.
　また、貨物機器室１２の内部に、主機に導かれる燃料ガス配管のフランジ又は弁を設けて構成すると、高圧の燃料ガス配管が乗組員が通行するような外部に露出することが無くなり、燃料ガス配管からのガス漏洩により受傷の危険性を減少でき、安全性を増すことができる。 Further, if a flange or valve for the fuel gas pipe led to the main engine is provided inside the cargo equipment room 12, the high-pressure fuel gas pipe will not be exposed to the outside so that the crew can pass through the fuel gas pipe. Gas leakage from the piping can reduce the risk of injury and increase safety.
　次に、図３及び図４を参照して、本発明の係る第２の実施の形態の液化ガス運搬船１Ｂについて説明する。この液化ガス運搬船１Ｂは、居住区８が貨物機器室１２の後方に設けて構成される点が、第１の実施の形態の液化ガス運搬船１Ａと異なる。この液化ガス運搬船１Ｂの構成によれば、貨物機器室１２の移動に伴い、居住区８を貨物機器室１２より後方に移動して設置するという比較的簡単な配置変更で済む。特に、船首部に居住区を設ける場所が無い場合は、船の長さを長くすること無く居住区を配置することが可能になる。また、貨物区画の上甲板４上に貨物機器室の設置場所を確保できず且つ船首部にも居住区の設置場所を確保できないという場合には、この配置が有効となる。 Next, a liquefied gas carrier 1B according to a second embodiment of the present invention will be described with reference to FIG. 3 and FIG. The liquefied gas carrier 1B is different from the liquefied gas carrier 1A according to the first embodiment in that the residential area 8 is provided behind the cargo equipment room 12. According to the configuration of the liquefied gas carrier 1 </ b> B, a relatively simple layout change is required in which the residential area 8 is moved rearward from the cargo equipment room 12 and installed with the movement of the cargo equipment room 12. In particular, when there is no place to provide a residential area at the bow, it is possible to arrange the residential area without increasing the length of the ship. This arrangement is effective when it is not possible to secure the installation location of the cargo equipment room on the upper deck 4 of the cargo compartment and to secure the installation location of the residential district at the bow.
　次に、図５及び図６を参照して、本発明の係る第３の実施の形態の液化ガス運搬船１Ｃについて説明する。この液化ガス運搬船１Ｃは、貨物機器室１２と居住区８の間に、区画１４が設けられて構成される点が、第２の実施の形態の液化ガス運搬船１Ｂと異なる。 Next, a liquefied gas carrier ship 1C according to a third embodiment of the present invention will be described with reference to FIGS. The liquefied gas carrier 1C is different from the liquefied gas carrier 1B of the second embodiment in that a section 14 is provided between the cargo equipment room 12 and the residential area 8.
　この区画１４は、コファーダム、空所、燃料油タンク、水タンクのうちのいずれか１つ以上を配設した区画として設けたり、若しくは、機関室５の一部を上甲板４より上に突設して設けた機関室突設部としたり、機関室５とは別の区画となる機械室若しくは倉庫のいずれか一方又は両方を配置する区画としたりして構成する。なお、この機械室には、空気調整装置（エアコン）や油圧機器などが配置される。 This section 14 is provided as a section in which any one or more of a cofferdam, a void, a fuel oil tank, and a water tank are disposed, or a part of the engine room 5 is provided above the upper deck 4. The engine room is provided as a projecting portion, or a machine room or a warehouse that is a separate compartment from the engine room 5 or a compartment in which both or both are arranged. In this machine room, an air conditioner (air conditioner), hydraulic equipment, and the like are arranged.
　これにより、この区画１４により、貨物機器室１２と居住区８を、隣接させずに済むので、貨物機器室１２においてガス漏洩が発生した場合でも、居住区８内にその漏洩したガスが侵入する危険性を減少できる。 Thereby, since it is not necessary to adjoin the cargo equipment room 12 and the residential area 8 by this section 14, even if a gas leak occurs in the cargo equipment room 12, the leaked gas enters the residential area 8. Risk can be reduced.
　次に、図７及び図８を参照して、本発明の係る第４の実施の形態の液化ガス運搬船１Ｄについて説明する。この液化ガス運搬船１Ｄは、貨物機器室１２の下側の機関室５の前部に、コファーダム、空所、燃料油タンク、水タンク、燃料油移送ポンプ、バラストポンプ、バラスト水処理装置のうちのいずれか１つ以上を備えた機関室前部区画１５を設けて構成される点が、第２の実施の形態の液化ガス運搬船１Ｂと異なる。 Next, a liquefied gas carrier 1D according to a fourth embodiment of the present invention will be described with reference to FIGS. The liquefied gas carrier 1D has a cofer dam, a void, a fuel oil tank, a water tank, a fuel oil transfer pump, a ballast pump, and a ballast water treatment device at the front of the engine room 5 below the cargo equipment room 12. It differs from the liquefied gas carrier ship 1B of 2nd Embodiment by the point comprised by providing the engine room front section 15 provided with any one or more.
　この構成により、機関室５と貨物区画Ｒ１との間に空隙を設けることができ、貨物機器室１２からの燃料ガス配管をこの機関室前部区画１５に配設することにより、貨物機器室１２においてガス漏洩が発生した場合でも、機関室５内にその漏洩したガスが侵入する危険性を減少することができる。 With this configuration, a gap can be provided between the engine room 5 and the cargo compartment R1, and the fuel gas piping from the cargo equipment room 12 is arranged in the engine room front compartment 15 so that the cargo equipment room 12 Even if a gas leak occurs at, the risk of the leaked gas entering the engine room 5 can be reduced.
　次に、図９及び図１０を参照して、本発明の係る第５の実施の形態の液化ガス運搬船１Ｅについて説明する。この液化ガス運搬船１Ｅは、貨物機器室１２の下側で機関室５の上部に、コファーダム、空所、燃料油タンク、水タンクのうちのいずれか１つ以上を備えた機関室上部区画１６を設けて構成される点が、第２の実施の形態の液化ガス運搬船１Ｂと異なる。 Next, a liquefied gas carrier 1E according to a fifth embodiment of the present invention will be described with reference to FIG. 9 and FIG. This liquefied gas carrier 1E has an engine room upper section 16 provided with any one or more of a cofferdam, a void, a fuel oil tank, and a water tank in the upper part of the engine room 5 below the cargo equipment room 12. The point provided and configured is different from the liquefied gas carrier ship 1B of the second embodiment.
　この構成により、貨物機器室１２と機関室５との間に空隙を設けることができるので、貨物機器室１２においてガス漏洩が発生した場合でも、機関室５内にその漏洩したガスが侵入する危険性を減少することができる。 With this configuration, since a gap can be provided between the cargo equipment room 12 and the engine room 5, even if a gas leak occurs in the cargo equipment room 12, the risk of the leaked gas entering the engine room 5 Sex can be reduced.
　上記の構成の液化ガス運搬船１Ａ～１Ｅによれば、貨物機器室１２を機関室５の上側に配置することによって、貨物機器室１２が貨物タンク１１同士の間から最後端の貨物タンク１１の後方に移動することになり、天然ガス等の液化ガスを燃料として使用するために使用される、貨物機器室１２から機関室５の主機に至る高圧の燃料ガス配管において、その敷設長さを短くすることができるので、高圧の燃料ガスの漏洩による危険性を軽減することができる。 According to the liquefied gas carriers 1A to 1E having the above-described configuration, the cargo equipment room 12 is arranged between the cargo tanks 11 and the rearmost cargo tank 11 by disposing the cargo equipment room 12 above the engine room 5. In the high-pressure fuel gas piping from the cargo equipment room 12 to the main engine of the engine room 5 that is used to use liquefied gas such as natural gas as fuel, the installation length is shortened. Therefore, the danger due to leakage of high-pressure fuel gas can be reduced.
　それと共に、貨物機器室１２の移動により、貨物タンク１１同士の間のスペースに収めるという制約を無くして貨物機器室１２を大きくすることができる上に、貨物タンク１１間の貨物機器室１２があったスペースが空くので、追加の荷役用マニホールド等の追加の荷役設備、別の用途の追加の船楼、追加の大型艤装品を設置する場所を確保することができるようになる。 At the same time, the movement of the cargo equipment room 12 eliminates the restriction that the cargo equipment room 12 can be accommodated in the space between the cargo tanks 11, and the cargo equipment room 12 can be enlarged. As a result, a large space can be secured for additional cargo handling equipment such as an additional cargo handling manifold, additional superstructures for other purposes, and additional large fittings.
　本発明の液化ガス貯蔵設備を備えた浮体構造物によれば、液化ガスを燃料として使用するために使用される、貨物機器室から機関室の主機に至る高圧の燃料ガス配管の敷設長さを短くすることができるので、高圧ガスの漏洩による危険性を軽減することができ、それと共に、貨物機器室に対して貨物タンク同士の間のスペースに収めるという制約を無くして貨物機器室を大きくすることができる上に、貨物タンク間の貨物機器室があったスペースが空いて、追加の荷役設備、追加の船楼、追加の大型艤装品を設置する場所を確保することができるようになるので、液化ガス貯蔵設備を備えた液化ガス運搬船、液化ガス燃料タンクを備えた船舶、液化ガス燃料タンクを備えた浮体構造物、又は、液化ガス貯蔵設備を有する浮体構造物等の液化ガス貯蔵設備を備えた浮体構造物に利用することができる。 According to the floating structure provided with the liquefied gas storage facility of the present invention, the laying length of the high-pressure fuel gas pipe used for using the liquefied gas as a fuel from the cargo equipment room to the main engine of the engine room is reduced. Since it can be shortened, the danger caused by leakage of high-pressure gas can be reduced, and at the same time, the cargo equipment room can be enlarged by eliminating the restriction of being placed in the space between cargo tanks. In addition, the space for the cargo equipment room between the cargo tanks will be vacant, and it will be possible to secure a place to install additional cargo handling equipment, additional superstructure, and additional large equipment. Liquefaction of a liquefied gas carrier ship equipped with a liquefied gas storage facility, a ship equipped with a liquefied gas fuel tank, a floating structure equipped with a liquefied gas fuel tank, or a floating structure equipped with a liquefied gas storage facility It can be utilized to floating structure provided with a scan storage facility.
１Ａ～１Ｅ、１Ｘ　液化ガス運搬船（液化ガス貯蔵設備を備えた浮体構造物）
２　船底
３　船側
４　上甲板
５　機関室
６　プロペラ
７　舵
８　居住区
８ａ　航海船橋
９　煙突
１１　貨物タンク
１１ａ　液化ガス燃料タンク
１２　貨物機器室
１３　荷役用マニホールド
１４　区画
１５　機関室前部区画
１６　機関室上部区画
１７　通行路
Ｒ１　貨物区画 1A-1E, 1X Liquefied gas carrier (floating structure with liquefied gas storage equipment)
2 Ship bottom 3 Ship side 4 Upper deck 5 Engine room 6 Propeller 7 Rudder 8 Living area 8a Nautical bridge 9 Chimney 11 Cargo tank 11a Liquefied gas fuel tank 12 Cargo equipment room 13 Cargo handling manifold 14 Section 15 Engine room front section 16 Engine room upper part Section 17 Road R1 Cargo section

Claims (11)

  1. 　貨物区画と該貨物区画の後方に機関室を有し、かつ、居住区の一部又は全部を上甲板上に設けた、液化ガス貯蔵設備を備えた浮体構造物において、
    　前記貨物区画の後方で、かつ、前記機関室の上側の一部または全部に貨物機器室を配置したことを特徴とする液化ガス貯蔵設備を備えた浮体構造物。     In a floating structure having a liquefied gas storage facility, which has a cargo compartment and an engine room behind the cargo compartment, and a part or all of the residential quarter is provided on the upper deck,
    A floating structure equipped with a liquefied gas storage facility, wherein a cargo equipment room is arranged behind the cargo compartment and partly or entirely above the engine room.
  2. 　前記居住区を前記貨物区画の前方に設けたことを特徴とする請求項１に記載の液化ガス貯蔵設備を備えた浮体構造物。 The floating structure provided with the liquefied gas storage facility according to claim 1, wherein the residential area is provided in front of the cargo section.
  3. 　前記居住区を前記貨物機器室の後方に設けたことを特徴とする請求項１に記載の液化ガス貯蔵設備を備えた浮体構造物。 The floating structure provided with the liquefied gas storage facility according to claim 1, wherein the residential area is provided behind the cargo equipment room.
  4. 　前記貨物機器室の後方に、コファーダム、空所、燃料油タンク、水タンクのうちのいずれか１つ以上を配設した区画を設け、この区画の後方に前記居住区を設けたことを特徴とする請求項３に記載の液化ガス貯蔵設備を備えた浮体構造物。 A section in which any one or more of a cofferdam, a void, a fuel oil tank, and a water tank are provided behind the cargo equipment room, and the residential section is provided behind the section. A floating structure comprising the liquefied gas storage facility according to claim 3.
  5. 　前記貨物機器室の後方に、前記機関室の一部を上甲板より上に突設して設けた機関室突設部を配置し、この機関室突設部の後方に前記居住区を設けたことを特徴とする請求項３に記載の液化ガス貯蔵設備を備えた浮体構造物。 An engine room projecting part provided by projecting a part of the engine room above the upper deck is arranged behind the cargo equipment room, and the living area is provided behind the engine room projecting part. A floating structure provided with the liquefied gas storage facility according to claim 3.
  6. 　前記貨物機器室の後方に、前記機関室とは別の区画となる機械室若しくは倉庫のいずれか一方又は両方を配置する区画を配置し、この区画の後方に前記居住区を設けたことを特徴とする請求項３に記載の液化ガス貯蔵設備を備えた浮体構造物。 A section in which either one or both of a machine room and a warehouse, which is a section different from the engine room, is disposed behind the cargo equipment room, and the residential section is provided behind the section. A floating structure provided with the liquefied gas storage facility according to claim 3.
  7. 　前記貨物機器室の下側の前記機関室の前部に、コファーダム、空所、燃料油タンク、水タンク、燃料油移送ポンプ、バラストポンプ、バラスト水処理装置のうちのいずれか１つ以上を備えた機関室前部区画を設けたことを特徴とする請求項１～６のいずれか１項に記載の液化ガス貯蔵設備を備えた浮体構造物。 One or more of a cofer dam, an empty space, a fuel oil tank, a water tank, a fuel oil transfer pump, a ballast pump, and a ballast water treatment device are provided at the front of the engine room below the cargo equipment room. The floating structure provided with the liquefied gas storage facility according to any one of claims 1 to 6, wherein a front compartment of the engine room is provided.
  8. 　前記貨物機器室の下側で前記機関室の上部に、コファーダム、空所、燃料油タンク、水タンクのうちのいずれか１つ以上を配設した機関室上部区画を設けたことを特徴とする請求項１～６のいずれか１項に記載の液化ガス貯蔵設備を備えた浮体構造物。 An engine room upper section in which any one or more of a cofferdam, a void, a fuel oil tank, and a water tank are provided below the cargo equipment room and above the engine room. A floating structure comprising the liquefied gas storage facility according to any one of claims 1 to 6.
  9. 　前記貨物機器室の上側にデッキタンク若しくは液化ガス燃料タンクを設けたことを特徴とする請求項１～８のいずれか１項に記載の液化ガス貯蔵設備を備えた浮体構造物。 The floating structure equipped with the liquefied gas storage facility according to any one of claims 1 to 8, wherein a deck tank or a liquefied gas fuel tank is provided above the cargo equipment room.
  10. 　前記貨物機器室の内部に、主機に導かれる燃料ガス配管のフランジ又は弁を設けたことを特徴とする請求項１～９のいずれか１項に記載の液化ガス貯蔵設備を備えた浮体構造物。 10. A floating structure equipped with a liquefied gas storage facility according to claim 1, wherein a flange or valve of a fuel gas pipe led to a main engine is provided inside the cargo equipment room. .
  11. 　当該浮体構造物が、液化ガス貯蔵設備を備えた液化ガス運搬船、液化ガス燃料タンクを備えた船舶、液化ガス燃料タンクを備えた浮体構造物、又は、液化ガス貯蔵設備を有する浮体構造物のいずれかであることを特徴とする請求項１～１０のいずれか１項に記載の液化ガス貯蔵設備を備えた浮体構造物。 The floating structure is a liquefied gas carrier ship equipped with a liquefied gas storage facility, a ship equipped with a liquefied gas fuel tank, a floating structure equipped with a liquefied gas fuel tank, or a floating structure having a liquefied gas storage facility. The floating structure provided with the liquefied gas storage facility according to any one of claims 1 to 10, wherein the structure is a floating structure.
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JP5953363B2 (en) 2016-07-20
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