WO2014024824A1 - 液化ガス気化装置を搭載した船舶および液化ガス気化装置 - Google Patents
液化ガス気化装置を搭載した船舶および液化ガス気化装置 Download PDFInfo
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- WO2014024824A1 WO2014024824A1 PCT/JP2013/071117 JP2013071117W WO2014024824A1 WO 2014024824 A1 WO2014024824 A1 WO 2014024824A1 JP 2013071117 W JP2013071117 W JP 2013071117W WO 2014024824 A1 WO2014024824 A1 WO 2014024824A1
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- heat exchange
- liquefied gas
- exchange panel
- side edge
- trough
- Prior art date
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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
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/24—Means for preventing unwanted cargo movement, e.g. dunnage
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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
- 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
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
- F28D3/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits with tubular conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
- F28D3/04—Distributing arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
- F28D5/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J99/00—Subject matter not provided for in other groups of this subclass
- B63J2099/001—Burning of transported goods, e.g. fuel, boil-off or refuse
- B63J2099/003—Burning of transported goods, e.g. fuel, boil-off or refuse of cargo oil or fuel, or of boil-off gases, e.g. for propulsive purposes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
- F28D2021/0064—Vaporizers, e.g. evaporators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
Definitions
- the present invention relates to a ship equipped with a liquefied gas vaporization apparatus for vaporizing liquefied gas and a liquefied gas vaporization apparatus.
- Patent Document 1 discloses a conventional general open rack type liquefied gas vaporizer (ORV; Open-Rack-type Vaporizer).
- ORV Open-Rack-type Vaporizer
- FIG. 6 (A) the liquefied gas vaporization apparatus 101 is vertically disposed between the lower header pipe 3 and the upper header pipe 4 disposed horizontally and in parallel at intervals of several meters above and below.
- a plurality of heat exchange tubes 6 in which a large number of heat transfer tubes 5 extending in a direction are arranged in parallel are provided.
- Troughs 7 are disposed in close proximity to the upper sides of each heat exchange panel 6.
- the trough 7 causes the heat medium water W (generally seawater) supplied from the water supply passage 8 to overflow and flow over the heat exchange panel 6.
- W generally seawater
- the heat transfer water W is allowed to flow only on one surface side of the heat exchange panel 6 (heat transfer tube 5), and not only the predetermined vaporization performance can not be obtained, but also local temperature distortion occurs in the heat exchange panel 6 And there is a concern that leads to damage. Therefore, the use of the open rack type liquefied gas vaporization device is overlooked in the place where it swings like a ship or floating on the ocean, and the cascade type and warm water (vapor) heating type liquefaction that are more complicated and operation and maintenance difficult. I had to adopt a gas vaporization device.
- the present invention has been made in view of such circumstances, and an object thereof is an open rack type liquefied gas vaporization apparatus having a simple structure and good operability, such as rocking and tilting like a ship or a floating object on the ocean. To be able to be installed at the place where
- the ship equipped with the liquefied gas vaporization apparatus comprises a heat exchange panel for heat-exchanging liquefied gas inside and is vaporized, and a trough adjacent to the heat exchange panel, from the overflow opening of the trough
- a vessel equipped with a liquefied gas vaporization apparatus for overflowing heat transfer water and flowing the heat transfer water over the surface of the heat exchange panel to heat exchange the liquefied gas the trough faces the heat exchange panel side
- the vertical height of the side edge not facing the heat exchange panel is set higher than the vertical height of the side edge.
- the inclination angle is the overflow opening of the trough Until the vertical height of the side edge facing the heat exchange panel and the vertical height of the side edge not facing the heat exchange panel coincide with each other,
- the heat transfer water can be continuously sprayed to the heat exchange panel, and the liquefied gas can be vaporized well.
- the liquefied gas can be liquefied by the open rack type liquefied gas vaporization device having a simple configuration and good operability. It can be vaporized. Therefore, the price of the ship can be significantly reduced compared to the case where a cascade type or hot water (steam) heating type liquefied gas vaporization apparatus conventionally used for the ocean is mounted.
- the liquefied gas vaporization apparatus comprises a heat exchange panel which internally evaporates liquefied gas for vaporization and a trough adjacent to the heat exchange panel;
- a liquefied gas vaporization apparatus for overflowing water and flowing the heat transfer water to the surface of the heat exchange panel to exchange heat with the liquefied gas, a side edge of the trough facing the heat exchange panel side
- the vertical height of the side edge not facing the heat exchange panel is set higher than the vertical height.
- the liquefied gas vaporization apparatus having the above configuration, even if the entire liquefied gas vaporization apparatus is inclined toward the trough as viewed from the heat exchange panel, the inclination angle faces the heat exchange panel at the overflow opening of the trough.
- the heat transfer water is sprayed from the trough to the heat exchange panel until the vertical angle of the side edge where it is located and the vertical height of the side edge not facing the heat exchange panel coincide.
- the liquefied gas can be vaporized well.
- the liquefied gas vaporization device is mounted at a place where it is swung by waves or wind like a ship or ocean floating body, the liquefied gas vaporization device is operated if the swing angle is within a predetermined range. be able to. Therefore, an open rack type liquefied gas vaporization apparatus having a simple configuration and good operability can be installed in a swinging place such as a ship or a floating floating body.
- a horizontal distance between a side edge facing the heat exchange panel and a side edge not facing the heat exchange panel is C, and the liquefied gas is vaporized.
- the maximum inclination angle in the C direction of the entire apparatus is ⁇
- the distance from the bottom plate to the side edge facing the heat exchange panel side is L1
- the bottom plate faces the heat exchange panel side
- the open rack type liquefied gas vaporization device can be properly determined according to the inclination angle expected for the vaporization device, and heat medium water can be supplied from the trough to the heat exchange panel even if the liquefied gas vaporization device is maximally inclined.
- the interior of the trough is partitioned into a plurality of water supply sections extending horizontally along the longitudinal direction of the trough, and the heat transfer water is equally distributed to the plurality of water supply sections. It is preferable to provide a distribution channel.
- the distribution channel is a pipe shape having a water supply port which penetrates the plurality of water supply sections along the longitudinal direction of the trough and is opened to the inside of each water supply section.
- the heat transfer water can be evenly distributed to all the water supply sections while keeping the configuration of the distribution channel simple.
- the two overflow openings respectively pouring the heat transfer water on the respective opposing heat exchange panels are disposed adjacent to each other, and a partition plate is provided to partition the two overflow openings, and the upper edge of the partition plate is common to the two overflow openings on the heat exchange panel side. It may be a side edge not facing.
- the upper end of the partition plate that separates the adjacent two overflow openings is common to each of the overflow openings, It becomes the side edge which does not face the heat exchange panel side. Therefore, while keeping the structure of the trough simple, two overflow openings can be provided and the heat transfer water can be evenly applied to the two opposing heat exchange panels.
- the inexpensive open rack type liquefied gas vaporization device which can be installed in a rocking and tilting place is loaded. Therefore, the price of the ship can be significantly reduced and the operability and the maintainability of the liquefied gas vaporization device can be improved, as compared with the case where the conventional liquefied gas vaporization device for the ocean is mounted.
- an open rack type liquefied gas vaporization apparatus having a simple configuration and good operability and maintainability can be used in a swinging and tilting place such as a ship or a floating object on the ocean. It can be mounted to enhance versatility.
- FIG. 1 It is a longitudinal cross-sectional view of the liquefied gas vaporization device which shows one embodiment of the present invention. It is an enlarged view of the trough shown in FIG. 1, (A) is a trough on the both outer side of a heat exchange panel, (B) is a figure which shows the trough pinched
- FIG. 1 is a longitudinal sectional view of a liquefied gas vaporizer showing one embodiment of the present invention.
- the liquefied gas vaporization apparatus 1 is mounted, for example, on a liquefied gas carrier, and is an apparatus for converting the transported liquefied gas into seawater by heat exchange with seawater (heat medium water).
- the lower header pipe 3, the upper header pipe 4, the heat transfer pipe 5, and the heat exchange panel 6 have the same configuration as the conventional liquefied gas vaporization apparatus 101 shown in FIGS. 6 (A) and 6 (B). is there.
- FIG. 1 a configuration in which three heat exchange panels 6 are provided is illustrated.
- Troughs 10A are provided on both outer sides of the three heat exchange panels 6, and troughs 10B are provided at positions sandwiched between the heat exchange panels 6.
- the troughs 10A and 10B are formed in a bowl shape (box shape) extending horizontally in the longitudinal direction of the heat exchange panel 6, as also shown in FIGS. 2 (A), (B) and FIG.
- a bottom plate 11, side plates 12 and partitions 14 facing each other in parallel to the surface direction of the heat exchange panel 6, and a pair of end plates 13 provided at opposite longitudinal ends of the troughs 10A and 10B are provided.
- a vertical partition plate 14 is provided at an intermediate position between the pair of side plates 12 facing each other.
- the longitudinal cross-sectional shape of the trough 10B is a shape (two vertical sides are vertical convex pentagons) which made the trough 10A two pieces back to back. Further, in the trough 10A, one side plate 12 and one partition plate 14 face each other.
- the upper surfaces of the troughs 10A and 10B are open, and this is an overflow opening 18.
- the overflow opening 18 is opened while being inclined downward at an inclination angle ⁇ toward the adjacent heat exchange panel 6.
- two overflow openings 18 are disposed adjacent to each other on both sides of the heat exchange panels 6 so as to hang the seawater W, and the space between them is divided by the partition plate 14.
- the overflow opening part 18 of trough 10A, 10B is facing the heat exchange panel side edge 18a (heat exchange panel side located in the heat exchange panel 6 side) A side edge), an anti-heat exchange panel side edge 18b (a side edge not facing the heat exchange panel side) located on the opposite side of the heat exchange panel 6 with the heat exchange panel side edge 18a interposed therebetween have.
- the heat exchange panel side edge 18 a is an edge through which the seawater W overflows from the overflow opening 18 and is applied to the heat exchange panel 6.
- the heat exchange panel side edge 18a is the upper edge of the side plate 12 facing the heat exchange panel 6 side, and the anti-heat exchange panel side edge 18b does not face the heat exchange panel 6 side It is the upper edge of the partition plate 14.
- the heat exchange panel side edge 18a is the upper edge of each side plate 12 on the both sides, while the upper edge of the partition plate 14 is the common heat exchange panel side to the two overflow openings 18 It becomes the edge 18b.
- the distance from the bottom plate 11 to the heat exchange panel side edge 18a (of the side plate 12) of the overflow opening 18 is L1
- the heat from the bottom plate 11 to the overflow opening 18 partition plate 14
- the heights of the side plates 12 and the partition plate 14 are set such that L2 is longer than L1.
- the distance between the pair of side plates 12 substantially orthogonal to the bottom plate 11 with respect to the partition plate 14 is C, and the maximum inclination angle in the C direction (lateral direction) of the entire liquefied gas vaporization device 1 (i.e. ship) is ⁇ .
- the heights of L1 and L2 are set such that the equation of L2-L1 ⁇ C ⁇ tan ⁇ holds. Therefore, even if the liquefied gas vaporization apparatus 1 is inclined to the maximum inclination angle ⁇ , the length L1 from the bottom plate 11 to the heat exchange panel side edge 18a is the length from the bottom plate 11 to the anti-heat exchange panel side edge 18b It is kept shorter than L2.
- the space between the facing side plates 12 and the partition plate 14 or the space between the facing side plates 12 is partitioned by a plurality of baffle plates 20 as shown in FIG. , 10B are formed with a plurality of (here, 12) water supply sections 21 horizontally extending in the longitudinal direction.
- the height of the baffle plate 20 is preferably slightly lower than the surface of the seawater W when the troughs 10A and 10B are not inclined. Thereby, the water level in each water supply division 21 can be equalized.
- the intervals of the baffle plates 20 may not necessarily be equal intervals.
- a distribution channel 23 for distributing seawater W evenly to the plurality of water supply sections 21 is provided.
- the distribution water channel 23 is formed in a pipe shape which penetrates the plurality of water supply sections 21 (the baffle plates 20) along the longitudinal direction of the troughs 10A and 10B, and a plurality of water supplies opened in the water supply sections 21. It has a mouth 23a.
- a water supply passage 24 is connected from below to the vicinity of an intermediate portion of the distribution water passage 23, and seawater W supplied from the water supply passage 24 is distributed to each water supply section 21 from each water supply port 23a of the distribution water passage 23.
- the liquefied gas vaporization apparatus 1 comprised as mentioned above operate
- the seawater W supplied from the water supply passage 24 to the troughs 10A and 10B through the distribution water passage 23 overflows from the overflow opening 18 and flows over the heat exchange panel 6 Be Therefore, when the low temperature liquefied gas supplied to the lower header pipe 3 flows upward inside the heat transfer pipe 5, the low temperature liquefied gas exchanges heat with the seawater W, evaporates, and becomes a gas gas at normal temperature and flows to the upper header pipe 4 , Is sent to the demand department ahead.
- the distance from the bottom plate 11 to the overflow opening 18 (L1 in FIG. 2)
- the distance (L2 in FIG. 2) from the bottom plate 11 to the heat exchange panel side edge 18b is set longer. Therefore, seawater W can be dispersed from the troughs 10A and 10B to the heat exchange panel 6 side until the inclination angle at which the lengths L1 and L2 coincide with each other, ie, the inclination angle exceeding the maximum inclination angle ⁇ .
- the liquefied gas can be vaporized well.
- the open rack type liquefied gas vaporization device 1 having a simple configuration and good operability can be installed in a swinging place such as a ship or a floating object on the ocean.
- the liquefied gas vaporization device 1 swings in the vertical direction, and even if the heights of both ends of the troughs 10A and 10B are different as shown in FIG.
- the whole seawater W in the troughs 10A and 10B is prevented from being concentrated on one end side of the troughs 10A and 10B. Therefore, the seawater W can be uniformly distributed from the respective water supply sections 21 over the entire width (entire surface) of the heat exchange panel 6, and the liquefied gas can be favorably vaporized in the heat exchange panel 6.
- the distribution channel 23 is in the form of a pipe having a water supply port 23a which penetrates the plurality of water supply sections 21 (the baffle plates 20) along the longitudinal direction of the troughs 10A and 10B and opens inside the water supply sections 21. Therefore, the seawater W can be equally distributed to all the water supply sections 21 while keeping the configuration of the distribution channel 23 simple.
- the two overflow openings 18 for respectively pouring the seawater W on each of the heat exchange panels 6 facing each other are disposed adjacent to each other.
- a partition plate 14 is provided to partition between the two overflow openings 18.
- the upper edge of the partition plate 14 is a common heat exchange panel side edge 18 b for the two overflow openings 18.
- the liquefied gas vaporization apparatus 1 configured in this way on a liquefied gas carrier, even when the hull is swung by waves or wind, if the swing angle is within the predetermined range,
- the liquefied gas can be vaporized by the open rack type liquefied gas vaporization apparatus 1 having a simple configuration and good operability. Therefore, the price of the ship can be significantly reduced compared to the case where a cascade type or hot water (steam) heating type liquefied gas vaporization apparatus conventionally used for the ocean is mounted.
- the present invention is not limited to only the configuration of the above-described embodiment, and various changes and modifications can be made as appropriate without departing from the scope of the present invention. Embodiments in which such changes and improvements are added are also included in the scope of the present invention.
- the said embodiment demonstrated as a liquefied gas vaporization apparatus mounted in ships, such as a liquefied gas carrier ship, you may mount in floating floating bodies, such as FSRU and FPSO.
- the number of heat exchange panels 6 and troughs 10A and 10B may be different from those in the present embodiment, and the heat transfer water may be not only seawater but also lake water, river water, or the like.
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Abstract
Description
本発明に係る液化ガス気化装置を搭載した船舶は、内部で液化ガスを熱交換させて気化させる熱交換パネルと、前記熱交換パネルに隣接するトラフと、を備え、前記トラフのオーバーフロー開口部より熱媒水をオーバーフローさせ、該熱媒水を前記熱交換パネルの表面にかけ流して前記液化ガスを熱交換させる液化ガス気化装置を搭載した船舶において、前記トラフの、前記熱交換パネル側に面している側縁部の鉛直方向の高さよりも、前記熱交換パネル側に面していない側縁部の鉛直方向の高さを高く設定したことを特徴とする。
図1は、本発明の一実施形態を示す液化ガス気化装置の縦断面図である。この液化ガス気化装置1は、例えば液化ガス運搬船に搭載されているものであり、運搬してきた液化ガスを海水(熱媒水)と熱交換させて気体ガス状にする装置である。この液化ガス気化装置1において、下部ヘッダー管3、上部ヘッダー管4、伝熱管5、熱交換パネル6については図6(A),(B)に示す従来の液化ガス気化装置101と同じ構成である。なお、図1では熱交換パネル6が3基設けられた構成が例示されている。
2つの熱交換パネル6の間に位置するトラフ10Bにおいては、図2(B)に示すように、対向する一対の側板12の中間位置に鉛直な仕切り板14が設けられている。このため、トラフ10Bの縦断面形状は、トラフ10Aを2つ背中合わせにしたような形状(両縦辺が鉛直な凸五角形)となっている。また、トラフ10Aにおいては、1枚の側板12と1枚の仕切り板14とが対向している。
図1に示す液化ガス気化装置1の非傾斜時には、給水路24から分配水路23を経てトラフ10A,10Bに供給された海水Wが、オーバーフロー開口部18からオーバーフローして熱交換パネル6に掛け流される。このため、下部ヘッダー管3に供給された低温な液化ガスが伝熱管5の内部を上方に流れる際に海水Wと熱交換して気化し、常温の気体ガスとなって上部ヘッダー管4に流れ、その先の需要部に送給される。
例えば、上記実施形態では、液化ガス運搬船等の船舶に搭載する液化ガス気化装置として説明したが、FSRUやFPSO等の洋上浮体に搭載するものであってもよい。
さらに、熱交換パネル6やトラフ10A,10Bの数は本実施形態のものと異なっていてもよく、また熱媒水は海水のみならず湖水や河川水等であってもよい。
5 伝熱管
6 熱交換パネル
10A,10B トラフ
11 底板
14 仕切り板
18 オーバーフロー開口部
18a 熱交換パネル側縁部(熱交換パネル側に面している側縁部)
18b 反熱交換パネル側縁部(熱交換パネル側に面していない側縁部)
20 バッフル板
21 給水区画
23 分配水路
23a 給水口
24 給水路
HA トラフの、熱交換パネル側に面している側縁部の鉛直方向の高さ
HB トラフの、熱交換パネル側に面していない側縁部の鉛直方向の高さ
L1 トラフ底板から熱交換パネル側縁部までの距離
L2 トラフ底板から反熱交換パネル側縁部までの距離
C 熱交換パネル側縁部と反熱交換パネル側縁部との水平間隔
W 海水(熱媒水)
WL 吃水線
θ 液化ガス気化装置全体の最大傾斜角度
Claims (6)
- 内部で液化ガスを熱交換させて気化させる熱交換パネルと、
前記熱交換パネルに隣接するトラフと、を備え、
前記トラフのオーバーフロー開口部より熱媒水をオーバーフローさせ、該熱媒水を前記熱交換パネルの表面にかけ流して前記液化ガスを熱交換させる液化ガス気化装置を搭載した船舶において、
前記トラフの、前記熱交換パネル側に面している側縁部の鉛直方向の高さよりも、前記熱交換パネル側に面していない側縁部の鉛直方向の高さを高く設定した液化ガス気化装置を搭載した船舶。 - 内部で液化ガスを熱交換させて気化させる熱交換パネルと、
前記熱交換パネルに隣接するトラフと、を備え、
前記トラフのオーバーフロー開口部より熱媒水をオーバーフローさせ、該熱媒水を前記熱交換パネルの表面にかけ流して前記液化ガスを熱交換させる液化ガス気化装置において、
前記トラフの、底板から前記熱交換パネル側に面している側縁部までの鉛直方向の高さよりも、前記底板から前記熱交換パネル側に面していない側縁部までの鉛直方向の高さを高く設定した液化ガス気化装置。 - 前記熱交換パネル側に面している側縁部と、前記熱交換パネル側に面していない側縁部との水平間隔をCとし、
前記液化ガス気化装置全体の、前記C方向への最大傾斜角度をθとし、
前記底板から前記熱交換パネル側に面している側縁部までの距離をL1とし、
前記底板から前記熱交換パネル側に面していない側縁部までの距離をL2とした場合に、
L2-L1≧C・tanθ
の式が成立するように前記L1と前記L2が設定されている請求項2に記載の液化ガス気化装置。 - 前記トラフの内部が、該トラフの長手方向に沿って水平に連なる複数の給水区画に仕切られるとともに、
前記複数の給水区画に前記熱媒水を均等に分配する分配水路が設けられた請求項2または3に記載の液化ガス気化装置。 - 前記分配水路は、前記トラフの長手方向に沿って前記複数の給水区画を貫通し、各々の給水区画の内部に開口する給水口を有するパイプ状である請求項4に記載の液化ガス気化装置。
- 対向する2つの前記熱交換パネルの間に設置される前記トラフには、対向する各々の熱交換パネルにそれぞれ前記熱媒水を掛け流す2つの前記オーバーフロー開口部が隣接して配置されるとともに、これら2つのオーバーフロー開口部の間を仕切る仕切り板が設けられ、この仕切り板の上縁部が、前記2つのオーバーフロー開口部にとって共通の、前記熱交換パネル側に面していない側縁部である請求項2から5のいずれかに記載の液化ガス気化装置。
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US20210207891A1 (en) * | 2018-09-28 | 2021-07-08 | Toyota Jidosha Kabushiki Kaisha | Water-spraying cooling device |
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JP6222464B2 (ja) | 2014-02-25 | 2017-11-01 | セイコーエプソン株式会社 | 液体吐出装置及び媒体の前処理方法 |
CN210512800U (zh) * | 2019-03-11 | 2020-05-12 | 株式会社神户制钢所 | 气化装置 |
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