WO2015037452A1 - 浮体構造物 - Google Patents
浮体構造物 Download PDFInfo
- Publication number
- WO2015037452A1 WO2015037452A1 PCT/JP2014/072647 JP2014072647W WO2015037452A1 WO 2015037452 A1 WO2015037452 A1 WO 2015037452A1 JP 2014072647 W JP2014072647 W JP 2014072647W WO 2015037452 A1 WO2015037452 A1 WO 2015037452A1
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- WO
- WIPO (PCT)
- Prior art keywords
- seawater
- flow path
- floating structure
- heat exchanger
- upstream
- Prior art date
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Classifications
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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
- F28D1/00—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 is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—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 is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/0206—Heat exchangers immersed in a large body of liquid
- F28D1/022—Heat exchangers immersed in a large body of liquid for immersion in a natural body of water, e.g. marine radiators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
- B63J2/12—Heating; Cooling
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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
- B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
- B63B13/02—Ports for passing water through vessels' sides
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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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- 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
- B63B2035/448—Floating hydrocarbon production vessels, e.g. Floating Production Storage and Offloading vessels [FPSO]
Definitions
- the present invention relates to a floating structure.
- FPSO Floating Production Storage and Offloading
- FLNG Floating Liquidated Natural Gas
- LNG LNG liquefaction plant
- LNG regasification plant for example, see Patent Document 1.
- the plant equipment mounted on the FPSO such as FLNG generally includes equipment (heat source) that generates high heat, such as a combustor and a compressor. In order to cool these devices that generate high heat, a cooling system that circulates cooling water to cool the devices (heat sources) is used. In plant equipment mounted on an FPSO, seawater may be used as cooling water for a cooling system.
- the present invention has been made in view of the above circumstances, and does not require the installation of ancillary equipment for pumping seawater into the plant equipment installed above the sea surface.
- An object of the present invention is to provide a floating structure capable of cooling the water.
- a floating structure according to the present invention is a floating structure on which plant equipment can be mounted, and includes a seawater inlet provided below the outer peripheral surface of the floating structure and a water line, an outer peripheral surface of the floating structure, and A seawater outlet provided below the water line, an upstream channel for circulating seawater flowing in from the seawater inlet, and a downstream for circulating seawater flowing in from the upstream channel and leading it to the seawater outlet A side flow path, a connection flow path connecting the upstream flow path and the downstream flow path, and a heat exchanger provided in the connection flow path for cooling a heat source of the plant facility using seawater
- the heat exchanger is located above an inflow position where seawater flows from the upstream flow path into the connection flow path, and an outflow position where seawater flows out from the connection flow path to the downstream flow path. It is characterized by being arranged below.
- the floating structure includes a seawater inlet and a seawater outlet provided on the outer peripheral surface of the floating structure and below the water line. Seawater that flows into the upstream channel from the seawater inlet flows into the downstream channel via the connection channel, and flows out of the floating structure from the seawater outlet.
- a heat exchanger is provided in the connection channel, and the heat source of the plant equipment is cooled using seawater. This heat exchanger is disposed above an inflow position where seawater flows from the upstream flow path to the connection flow path and below an outflow position where seawater flows from the connection flow path to the downstream flow path. .
- seawater When the seawater is heated by the heat exchanger in the connection flow path, natural convection is generated in which the seawater moves (rises) from below to above. With the occurrence of natural convection, seawater flows from an inflow position disposed below the heat exchanger toward an outflow position disposed above the heat exchanger. Since the inflow position communicates with the upstream flow path and the outflow position communicates with the downstream flow path, the seawater moves from the upstream flow path toward the downstream flow path.
- the floating structure of the first aspect of the present invention is characterized in that the seawater inlet is disposed at a position lower than the seawater outlet.
- the floating structure according to the second aspect of the present invention has a rectangular parallelepiped shape in which the length in the vertical direction is shorter than the length in the other direction, and the seawater inflow port and the seawater outflow port face each other without being adjacent to each other. It is provided on the side surface.
- the floating structure of the third aspect of the present invention has a rectangular parallelepiped shape in which the length in the vertical direction is shorter than the length in the other direction, and the seawater inlet and the seawater outlet are provided on the same side surface. It is characterized by being. By doing in this way, compared with the case where a seawater inlet and a seawater outlet are provided in the side surface which opposes, it becomes possible to shorten the flow path length of an upstream flow path and a downstream flow path. By shortening the flow path lengths of the upstream flow path and the downstream flow path, the seawater can be moved more smoothly from the upstream flow path toward the downstream flow path.
- the floating structure according to the fourth aspect of the present invention has a rectangular parallelepiped shape in which the length in the vertical direction is shorter than the length in the other direction, the seawater inlet is provided on the lower surface of the floating structure, and the seawater outlet Is provided on any one side of the floating structure.
- the floating structure includes a cooling water system pipe in which the heat exchanger circulates cooling water that cools a heat source of the plant equipment, and the cooling water and seawater that circulate through the cooling water system.
- the heat exchange with is performed.
- the floating structure according to the present invention is a floating structure on which plant equipment can be mounted, and includes a seawater inlet provided on the outer peripheral surface of the floating structure and below the water line, and the outer periphery of the floating structure.
- a seawater outlet provided on the surface and below the water line, an upstream flow path for circulating seawater flowing in from the seawater inlet, and a flow of seawater flowing in from the upstream flow path to the seawater outlet
- a downstream flow path that leads, a connection flow path that connects the upstream flow path and the downstream flow path, and provided in the connection flow path, for heating a cooling heat source of the plant facility using seawater
- a heat exchanger wherein the heat exchanger flows below the inflow position where seawater flows from the upstream flow path into the connection flow path, and the seawater flows out from the connection flow path to the downstream flow path. It is located above the outflow position To.
- the floating structure includes a seawater inlet and a seawater outlet provided on the outer peripheral surface of the floating structure and below the water line. Seawater that flows into the upstream channel from the seawater inlet flows into the downstream channel via the connection channel, and flows out of the floating structure from the seawater outlet.
- a heat exchanger is provided in the connection channel, and the cold heat source of the plant equipment is heated using seawater. This heat exchanger is disposed below an inflow position where seawater flows from the upstream flow path to the connection flow path and above an outflow position where seawater flows from the connection flow path to the downstream flow path. .
- the floating body that can heat the cold heat source of the plant equipment using seawater without requiring the installation of incidental equipment for pumping up seawater to the plant equipment installed above the sea surface A structure can be provided.
- the above floating structure according to the present invention may be equipped with a liquefied gas regasification plant facility, and the heat exchanger may be an embodiment in which the liquefied gas is heated and gasified using seawater. .
- the floating structure which can heat and liquefy liquefied gas using seawater can be provided.
- a floating structure capable of cooling a heat source of plant equipment using seawater without requiring installation of ancillary equipment for pumping seawater into the plant equipment installed above the sea surface.
- a floating structure can be provided.
- FIG. 1 is a perspective view showing a floating structure 100 according to the present embodiment.
- FIG. 2 is a schematic configuration diagram showing the floating structure 100 and the cooling water system 101 of the present embodiment.
- a floating structure 100 illustrated in FIG. 1 is a structure called FPSO (Floating Production Stage and Offloading), and can be equipped with a plant facility P.
- the plant equipment P includes various power sources such as a compressor, and these power sources are heat sources that generate heat. And in order to cool these several power sources as a heat source, the plant equipment P is equipped with the cooling water system
- strain 101 (refer FIG. 2) which circulates cooling water.
- various facilities including a heat source such as an LNG liquefaction plant facility, an LNG regasification plant facility, a CO 2 recovery facility, and a power generation facility are applicable.
- the floating structure 100 is a rectangular parallelepiped structure that floats on the ocean.
- the floating structure 100 has a horizontal length of L1 and L2, and a vertical length of L3.
- the length L3 in the vertical direction is shorter than the lengths L1 and L2 in the horizontal direction.
- the water line D is a place where the sea surface S and the four side surfaces of the floating structure 100 intersect.
- a seawater inlet 10 is provided in the sea below the waterline D.
- a seawater outlet 20 is provided on a side surface of the floating structure 100 on which the seawater inlet 10 is disposed.
- the seawater inflow port 10 and the seawater outflow port 20 are provided on the side surfaces facing each other without being adjacent to each other.
- FIG. 2 is a schematic configuration diagram showing the floating structure 100 and the cooling water system 101 of the present embodiment.
- the floating structure 100 in FIG. 2 is shown in a cross-section along the direction indicated by the length L1 in FIG. This cross section is a cross section at a position where the seawater inlet 10 and the seawater outlet 20 exist.
- the seawater inlet 10 and the seawater outlet 20 are provided on the outer peripheral surface of the floating structure 100 and below the water line D.
- the floating structure 100 includes an upstream channel 70 through which seawater flowing from the seawater inlet 10 circulates, and a downstream channel 80 that circulates seawater flowing from the upstream channel 70 and leads to the seawater outlet 20. Prepare.
- the upstream channel 70 and the downstream channel 80 are connected by a connecting channel 90.
- the seawater inlet 10 is provided on the side surface of the floating structure 100 and has a rectangular shape when viewed in a direction perpendicular to the side surface.
- the cross-sectional shapes (not shown) of the upstream flow path 70, the downstream flow path 80, and the connection flow path 90 are rectangles having substantially the same shape as the seawater inlet 10.
- the cross-sectional shape of the upstream flow path 70, the downstream flow path 80, and the connection flow path 90 is not rectangular, and may be, for example, a circular shape or an elliptical shape.
- the connection channel 90 is provided with a heat exchanger 30 that cools a heat source (not shown) of the plant equipment P using seawater.
- the heat exchanger 30 includes a pipe through which cooling water circulating through the cooling water system 101 flows.
- a shell and tube heat exchanger or a plate heat exchanger may be used as the heat exchanger 30, a shell and tube heat exchanger or a plate heat exchanger may be used.
- the heat exchanger 30 does not directly cool the heat source of the plant equipment P, but by cooling the cooling water circulating through the cooling water system 101 that cools the heat source of the plant equipment P, The heat source of the plant equipment P is indirectly cooled.
- the cooling water system 101 includes an upstream header 51, a downstream header 52, a cooler 61, a cooler 62, and a cooler 63.
- the cooling water of the upstream header 51 branches and flows into the cooler 61, the cooler 62, and the cooler 63.
- the cooler 61, the cooler 62, and the cooler 63 are provided so as to be in direct or indirect contact with a plurality of heat sources (not shown) provided in the plant facility P, respectively.
- the cooling water that has passed through the cooler 61, the cooler 62, and the cooler 63 is in a state in which its temperature has increased due to heat exchange with the heat source of the plant equipment P.
- the cooling water is sent to a pipe constituting a part of the heat exchanger 30 via the cooling water pipe 102 by the circulation pump 40.
- the cooling water cooled by seawater in the heat exchanger 30 is supplied again to the upstream header 51 via the cooling water pipe 103.
- the cooling water of the cooling water system 101 is circulated by the power of the circulation pump 40.
- seawater moves from an inflow position disposed below the heat exchanger 30 toward an outflow position disposed above the heat exchanger 30. Since the inflow position communicates with the upstream flow path 70 and the outflow position communicates with the downstream flow path 80, seawater moves from the upstream flow path toward the downstream flow path.
- connection channel 90 As the seawater moves from the lower side to the upper side in the connection channel 90, the movement of seawater from the seawater inlet 10 toward the connection channel 90 starts in the upstream side channel 70. Similarly, with the movement of seawater from below to above in the connection channel 90, the movement of seawater from the connection channel 90 toward the seawater outlet 20 starts in the downstream channel 80. In this way, natural convection of seawater from the seawater inlet 10 to the seawater outlet 20 is generated by heat exchange between the cooling water of the cooling water system 101 and the seawater in the heat exchanger 30.
- the seawater inlet 10 of the present embodiment is arranged at a position lower than the seawater outlet 20.
- the upstream flow path 70 and the downstream flow path 80 are flow paths that extend in the horizontal direction so that the distance in the vertical direction from the water line D is the same position. Because of this structure, when seawater moves from the lower side to the upper side (natural convection) in the connecting channel 90, the seawater moves from the seawater inlet 10 to the connecting channel 90, and the connecting channel. The movement of the seawater from 90 to the seawater outlet 20 is performed smoothly.
- the floating structure 100 of the present embodiment includes the seawater inlet 10 and the seawater outlet 20 provided on the outer peripheral surface of the floating structure 100 and below the draft line D.
- Seawater that has flowed into the upstream flow path 7 from the seawater inlet 10 flows into the downstream flow path 80 via the connection flow path 90, and flows out of the floating structure 100 from the seawater outlet 20.
- the heat exchanger 30 is provided in the connection flow path 90, and the heat source (not shown) of the plant equipment P is cooled using seawater.
- the heat exchanger 30 is above an inflow position where seawater flows from the upstream flow path 70 to the connection flow path 90 and below an outflow position where seawater flows from the connection flow path 90 to the downstream flow path 80. Is arranged.
- seawater When seawater is heated by the heat exchanger 30 in the connection channel 90, natural convection in which the seawater moves upward from below is generated. With the occurrence of natural convection, seawater flows from an inflow position disposed below the heat exchanger 30 toward an outflow position disposed above the heat exchanger 30. Since the inflow position communicates with the upstream flow path 70 and the outflow position communicates with the downstream flow path 80, seawater moves from the upstream flow path 70 toward the downstream flow path 80. By doing in this way, it is possible to cool the heat source of the plant equipment P using seawater, without making it necessary to install ancillary equipment for pumping seawater into the plant equipment installed above the sea level S.
- the floating structure 100 can be provided.
- the seawater inlet 10 is disposed at a position lower than the seawater outlet 20.
- the floating structure 100 of this embodiment is a rectangular parallelepiped shape in which the length L3 in the vertical direction is shorter than the lengths L1 and L2 in the other directions, and the seawater inlet 10 and the seawater outlet 20 are adjacent to each other. It is provided in the side surface which opposes without. By doing in this way, seawater inflow port 10 and seawater outflow port 20 can be made into the position away enough. Accordingly, it is possible to prevent a problem that the seawater that has flowed out from the seawater outlet 20 flows in again from the seawater inlet 10 and lowers the cooling efficiency of the heat exchanger 30.
- FIG. 1 a floating structure according to a second embodiment of the present invention will be described with reference to FIG.
- the second embodiment is a modification of the first embodiment, and is the same as the first embodiment except for the points described below.
- the description of the second embodiment will be omitted for those given the same reference numerals as in the first embodiment.
- the floating structure 100 of the first embodiment and the floating structure 200 of the second embodiment are different in the position and shape of the flow path from the seawater inlet to the seawater outlet.
- the floating structure 200 has a seawater inlet 11 and a seawater outlet 21 provided on the same side surface.
- the floating structure 200 includes an upstream channel 71 that distributes seawater flowing from the seawater inlet 11 and a downstream channel 81 that distributes seawater flowing from the upstream channel 71 and guides it to the seawater outlet 21.
- the upstream channel 71 and the downstream channel 81 are connected by a connecting channel 91.
- the seawater inlet 11 and the seawater outlet 21 are provided on the same side, compared to the case where the seawater inlet and the seawater outlet are provided on opposite sides. It is possible to shorten the channel lengths of the upstream channel and the downstream channel. By shortening the flow path lengths of the upstream flow path and the downstream flow path, the seawater can be moved more smoothly from the upstream flow path toward the downstream flow path.
- FIG. 3 is a modification of the first embodiment, and is the same as the first embodiment except for the points described below. The description of the third embodiment will be omitted for those given the same reference numerals as in the first embodiment.
- the floating structure 100 according to the first embodiment and the floating structure 300 according to the third embodiment are different in the position and shape of the flow path from the seawater inlet to the seawater outlet.
- the seawater inlet 12 is provided on the lower surface of the floating structure 300, and the seawater outlet 22 is provided on any one side surface of the floating structure 300. It has been.
- the floating structure 300 includes an upstream channel 72 through which seawater flowing from the seawater inlet 12 circulates, and a downstream channel 82 that circulates seawater flowing from the upstream channel 72 and leads to the seawater outlet 22. Prepare.
- the upstream channel 72 and the downstream channel 82 are connected by a connecting channel 92.
- the seawater inlet 12 is provided on the lower surface of the floating structure 300, the upstream flow path 72 from the lower surface that is the lowest position on the outer peripheral surface of the floating structure 300. Seawater flows in the vertical direction toward Therefore, the movement of the seawater from the upstream side flow path 72 to the downstream side flow path 82 generated along with the occurrence of natural convection can be performed more smoothly.
- seawater inlet and the seawater outlet are provided on the opposite side surfaces, it is possible to shorten the channel lengths of the upstream channel and the downstream channel. Furthermore, since seawater flows in from the lower surface of the floating structure 300, seawater having a temperature lower than that of the other embodiments can be guided to the heat exchanger 30.
- FIG. 5 is a schematic configuration diagram illustrating a floating structure and an intermediate heat medium system according to the fourth embodiment.
- the heat exchanger 30 provided in the floating structure 100 according to the first embodiment performs heat exchange between the cooling water circulating in the cooling water system 101 of the plant equipment P and seawater.
- the heat exchanger 430 included in the floating structure 400 according to the present embodiment performs heat exchange between the liquefied gas and seawater.
- This embodiment is a modification of the first embodiment, and is the same as the first embodiment except for the points described below.
- the description of the present embodiment will be omitted for those having the same reference numerals as those of the first embodiment.
- the plant equipment P mounted on the floating structure 400 according to the fourth embodiment is a regasification plant equipment that regasifies liquefied natural gas (LNG). Since LNG has a temperature difference of about 200 ° C. from seawater, LNG can be regasified by using seawater as a heat source for heating.
- LNG liquefied natural gas
- the cooling water system 101 circulates cooling water that performs heat exchange with seawater.
- an intermediate heat medium system 401 that circulates an intermediate heat medium such as propane gas is used.
- the intermediate heat medium circulates through the intermediate heat medium system 401 as a heat medium for transferring the heat of seawater to LNG.
- the coolers 61, 62, and 63 cooled the some heat source with which the plant equipment P is provided directly or indirectly.
- heaters 461, 462, and 463 are provided in the plant equipment P, and an intermediate heat medium heated by seawater by the heaters 461, 462, and 463 is used. Heat the liquefied gas. The liquefied gas heated by the heaters 461, 462, and 463 is gasified.
- the heat exchanger 30 heats seawater by performing heat exchange with cooling water having a temperature higher than that of seawater.
- the heat exchanger 430 of the fourth embodiment cools seawater by performing heat exchange with an intermediate heat medium having a temperature lower than that of seawater. Therefore, in this embodiment, natural convection in which seawater moves downward from above in the vicinity of the heat exchanger 430 occurs.
- the seawater inlet 10 of the first embodiment is arranged at a position lower than the seawater outlet 20.
- the seawater inlet 13 of this embodiment is arrange
- the upstream flow path 73 and the downstream flow path 83 are flow paths that extend in the horizontal direction so that the distance in the vertical direction from the water line D is the same position.
- the seawater flows out from the connection channel 93 to the downstream channel 83 below the inflow position where the seawater flows from the upstream channel 73 to the connection channel 93. It is arranged above the outflow position.
- the fourth embodiment is a modification of the first embodiment, but may be another aspect.
- it is good also as a modification of 2nd Embodiment.
- the heat exchanger 430 cools the seawater by performing heat exchange with the intermediate heat medium having a temperature lower than that of the seawater.
- the seawater inlet 13 and the seawater outlet 23 are provided on the same side surface, and the seawater outlet 23 is provided at a position lower than the seawater inlet 13.
- the fourth embodiment may be a modification of the third embodiment.
- the heat exchanger 430 cools the seawater by performing heat exchange with the intermediate heat medium having a temperature lower than that of the seawater.
- the seawater outlet 23 is provided on the lower surface of the floating structure 400, and the seawater inlet 13 is provided on any one side surface of the floating structure 400.
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Abstract
Description
本発明に係る浮体構造物は、プラント設備を搭載可能な浮体構造物であって、前記浮体構造物の外周面かつ喫水線の下方に設けられた海水流入口と、前記浮体構造物の外周面かつ前記喫水線の下方に設けられた海水流出口と、前記海水流入口から流入する海水を流通させる上流側流路と、前記上流側流路から流入する海水を流通させて前記海水流出口へ導く下流側流路と、前記上流側流路と前記下流側流路とを連結する連結流路と、前記連結流路に設けられ、海水を用いて前記プラント設備の熱源を冷却するための熱交換器とを備え、前記熱交換器は、前記上流側流路から前記連結流路に海水が流入する流入位置よりも上方であって前記連結流路から前記下流側流路に海水が流出する流出位置よりも下方に配置されていることを特徴とする。
このようにすることで、自然対流の発生に伴って生じる上流側流路から下流側流路に向けた海水の移動をより円滑に行わせることができる。
このようにすることで、海水流入口と海水流出口が十分に離れた位置とすることができる。従って、海水流出口から流出した海水が再び海水流入口から流入し、熱交換器の冷却効率を低めてしまう不具合を防止することができる。
このようにすることで、海水流入口と海水流出口とを対向する側面に設ける場合に比べ、上流側流路及び下流側流路の流路長を短くすることが可能となる。上流側流路及び下流側流路の流路長を短くすることにより、上流側流路から下流側流路に向けた海水の移動をより円滑に行わせることができる。
このようにすることで、浮体構造物の外周面のうち最も低い位置である下面から上流側流路に向けて鉛直方向に海水が流入する。従って、自然対流の発生に伴って生じる上流側流路から下流側流路に向けた海水の移動をより円滑に行わせることができる。
このようにすることで、プラント設備の熱源を冷却する冷却水と海水との熱交換が行われ、海水を用いたプラント設備の熱源の冷却を適切に行うことができる。
このようにすることで、海水を用いて液化ガスを加熱してガス化することが可能な浮体構造物を提供することができる。
また、本発明によれば、海面より上方に設置されるプラント設備に海水を汲み上げるための付帯設備の設置を必須とすることなく、海水を用いてプラント設備の冷熱源を加熱することが可能な浮体構造物を提供することができる。
以下、本発明の第1実施形態の浮体構造物について、図1及び図2を参照しつつ説明する。
図1は、本実施形態の浮体構造物100を示す斜視図である。図2は、本実施形態の浮体構造物100及び冷却水系統101を示す概略構成図である。
このような構造となっているため、連結流路90での下方から上方への海水の移動(自然対流)が発生すると、海水流入口10から連結流路90への海水の移動、連結流路90から海水流出口20への海水の移動がそれぞれ円滑に行われる。
このようにすることで、海面Sより上方に設置されるプラント設備に海水を汲み上げるための付帯設備の設置を必須とすることなく、海水を用いてプラント設備Pの熱源を冷却することが可能な浮体構造物100を提供することができる。
以下、本発明の第2実施形態の浮体構造物について、図3を参照しつつ説明する。
第2実施形態は第1実施形態の変形例であり、以下で説明する点を除き、第1実施形態と同様である。第1実施形態と同一の符号が付されたものについては第2実施形態における説明を省略する。
第1実施形態の浮体構造物100と第2実施形態の浮体構造物200とは、海水流入口から海水流出口に至る流路の位置及び形状が異なっている。
以下、本発明の第3実施形態の浮体構造物について、図4を参照しつつ説明する。
第3実施形態は第1実施形態の変形例であり、以下で説明する点を除き、第1実施形態と同様である。第1実施形態と同一の符号が付されたものについては第3実施形態における説明を省略する。
第1実施形態の浮体構造物100と第3実施形態の浮体構造物300とは、海水流入口から海水流出口に至る流路の位置及び形状が異なっている。
以下、本発明の第4実施形態の浮体構造物について、図5を用いて説明する。図5は、第4実施形態の浮体構造物及び中間熱媒体系統を示す概略構成図である。
第1実施形態の浮体構造物100が備える熱交換器30は、プラント設備Pの冷却水系統101を循環する冷却水と海水との熱交換を行うものであった。それに対して本実施形態の浮体構造物400が備える熱交換器430は、液化ガスと海水との熱交換を行うものである。
20,21,22,23 海水流出口
30,430 熱交換器
40 循環ポンプ
51 上流側ヘッダ
52 下流側ヘッダ
61,62,63 冷却器
70,71,72,73 上流側流路
80,81,82,83 下流側流路
90,91,92,93 連結流路
100,200,300,400 浮体構造物
101 冷却系統
102,103 冷却水配管
401 中間熱媒体系統
461,462,463 加熱器
D 喫水線
L1 浮体構造物の長さ
L2 浮体構造物の幅
L3 浮体構造物の高さ(浮体構造物の鉛直方向の長さ)
P プラント設備
S 海面
Claims (8)
- プラント設備を搭載可能な浮体構造物であって、
前記浮体構造物の外周面かつ喫水線の下方に設けられた海水流入口と、
前記浮体構造物の外周面かつ前記喫水線の下方に設けられた海水流出口と、
前記海水流入口から流入する海水を流通させる上流側流路と、
前記上流側流路から流入する海水を流通させて前記海水流出口へ導く下流側流路と、
前記上流側流路と前記下流側流路とを連結する連結流路と、
前記連結流路に設けられ、海水を用いて前記プラント設備の熱源を冷却するための熱交換器とを備え、
前記熱交換器は、前記上流側流路から前記連結流路に海水が流入する流入位置よりも上方であって前記連結流路から前記下流側流路に海水が流出する流出位置よりも下方に配置されていることを特徴とする浮体構造物。 - 前記海水流入口は、前記海水流出口より低い位置に配置されていることを特徴とする請求項1に記載の浮体構造物。
- 前記浮体構造物は、鉛直方向の長さが他の方向の長さよりも短い直方体形状であり、
前記海水流入口と前記海水流出口とが、それぞれ隣接せずに対向する側面に設けられていることを特徴とする請求項1又は請求項2に記載の浮体構造物。 - 前記浮体構造物は、鉛直方向の長さが他の方向の長さよりも短い直方体形状であり、
前記海水流入口と前記海水流出口とが、同一の側面に設けられていることを特徴とする請求項1又は請求項2に記載の浮体構造物。 - 前記浮体構造物は、鉛直方向の長さが他の方向の長さよりも短い直方体形状であり、
前記海水流入口が前記浮体構造物の下面に設けられ、
前記海水流出口が前記浮体構造物のいずれか1つの側面に設けられていることを特徴とする請求項1又は請求項2に記載の浮体構造物。 - 前記熱交換器は、前記プラント設備の熱源を冷却する冷却水を循環させる冷却水系統の配管を含み、該冷却水系統を循環する冷却水と海水との熱交換を行うことを特徴とする請求項1から請求項5のいずれか1項に記載の浮体構造物。
- プラント設備を搭載可能な浮体構造物であって、
前記浮体構造物の外周面かつ喫水線の下方に設けられた海水流入口と、
前記浮体構造物の外周面かつ前記喫水線の下方に設けられた海水流出口と、
前記海水流入口から流入する海水を流通させる上流側流路と、
前記上流側流路から流入する海水を流通させて前記海水流出口へ導く下流側流路と、
前記上流側流路と前記下流側流路とを連結する連結流路と、
前記連結流路に設けられ、海水を用いて前記プラント設備の冷熱源を加熱するための熱交換器とを備え、
前記熱交換器は、前記上流側流路から前記連結流路に海水が流入する流入位置よりも下方であって前記連結流路から前記下流側流路に海水が流出する流出位置よりも上方に配置されていることを特徴とする浮体構造物。 - 液化ガスの再ガス化プラント設備を搭載可能であり、
前記熱交換器は、海水を用いて液化ガスを加熱してガス化することを特徴とする請求項7に記載の浮体構造物。
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US14/917,353 US20160216035A1 (en) | 2013-09-11 | 2014-08-28 | Floating structure |
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JPS59115806U (ja) * | 1983-01-26 | 1984-08-04 | 株式会社日立製作所 | 超コンパクトコンバインドプラント |
JPH10332894A (ja) * | 1997-05-30 | 1998-12-18 | Kawasaki Heavy Ind Ltd | 放射性物質の貯蔵施設 |
JP2003329198A (ja) * | 2002-05-16 | 2003-11-19 | Yyl:Kk | Lng気化器及びその制御方法 |
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JP2011122771A (ja) * | 2009-12-11 | 2011-06-23 | Nyk Trading Corp | 熱負荷冷却装置および熱負荷冷却装置用制御装置 |
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US4357989A (en) * | 1980-08-29 | 1982-11-09 | Texaco Inc. | Heat exchange circuit for an offshore installation |
JP4584589B2 (ja) * | 2002-03-29 | 2010-11-24 | エクセルレイト・エナジー・リミテッド・パートナーシップ | 改良型lng運搬体 |
JP5254716B2 (ja) * | 2008-09-08 | 2013-08-07 | 三菱重工業株式会社 | 浮体構造物 |
KR20130035499A (ko) * | 2011-09-30 | 2013-04-09 | 삼성중공업 주식회사 | 해양 구조물 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPS59115806U (ja) * | 1983-01-26 | 1984-08-04 | 株式会社日立製作所 | 超コンパクトコンバインドプラント |
JPH10332894A (ja) * | 1997-05-30 | 1998-12-18 | Kawasaki Heavy Ind Ltd | 放射性物質の貯蔵施設 |
JP2003329198A (ja) * | 2002-05-16 | 2003-11-19 | Yyl:Kk | Lng気化器及びその制御方法 |
JP2005256908A (ja) * | 2004-03-10 | 2005-09-22 | Mitsubishi Heavy Ind Ltd | Lng気化装置及び方法 |
JP2011122771A (ja) * | 2009-12-11 | 2011-06-23 | Nyk Trading Corp | 熱負荷冷却装置および熱負荷冷却装置用制御装置 |
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AU2014319618A1 (en) | 2016-03-31 |
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