WO2021124569A1 - Floating facility and production method for floating facility - Google Patents

Floating facility and production method for floating facility Download PDF

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Publication number
WO2021124569A1
WO2021124569A1 PCT/JP2019/050168 JP2019050168W WO2021124569A1 WO 2021124569 A1 WO2021124569 A1 WO 2021124569A1 JP 2019050168 W JP2019050168 W JP 2019050168W WO 2021124569 A1 WO2021124569 A1 WO 2021124569A1
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Prior art keywords
floating
floating body
equipment
body portion
enclosure
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PCT/JP2019/050168
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French (fr)
Japanese (ja)
Inventor
達也 前嶋
卓司 鶴山
強 藤田
貢 藤波
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日揮グローバル株式会社
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Priority to PCT/JP2019/050168 priority Critical patent/WO2021124569A1/en
Publication of WO2021124569A1 publication Critical patent/WO2021124569A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/08—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/18—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/56—Towing or pushing equipment
    • 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
    • B63J—AUXILIARIES ON VESSELS
    • B63J1/00—Arrangements of installations for producing fresh water, e.g. by evaporation and condensation of sea water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Definitions

  • the present invention relates to a floating device in which a desalination facility is provided on a floating body floating on the ocean of salt water.
  • desalination equipment for desalination of saltwater such as seawater
  • a desalination facility for example, a plant for desalinating salt water using an evaporation method or a reverse osmosis method is known.
  • a plant facility for desalination is constructed on land, and seawater pumped from the ocean is supplied to the plant. It is generally desalinated.
  • the present invention has been made against such a background, and an object of the present invention is to provide a floating equipment provided with a desalination equipment that can be manufactured at low cost.
  • the floating body equipment of the present invention includes a floating body portion that floats on the sea in salt water and A desalination facility provided on the floating body to desalinate the salt water, An enclosure that encloses a plurality of water storage tanks floating on the ocean in a state of storing fresh water produced by the desalination facility in a preset area. It is characterized in that it is provided with a fastening portion for fastening the enclosure portion to the floating body portion.
  • the floating equipment may have the following features.
  • the desalination equipment shall use a reverse osmosis membrane to desalinate salt water.
  • the floating body portion is a pontoon that is towed by another vessel and moves.
  • the floating body portion shall be a ship equipped with navigation equipment for self-navigation.
  • the enclosure is configured to be able to enclose a plurality of the water storage tanks floating on the ocean with a water storage capacity of 7,000 L or less.
  • the preset area is set within the range of 250 to 400 m 2.
  • a tank for storing and discharging salt water to adjust the weight of the floating body portion is provided inside the floating body portion.
  • the desalination equipment is equipped with a microfiltration equipment that performs microfiltration of salt water before desalination.
  • the microfiltration equipment shall precisely filter the salt water stored in the tank.
  • the manufacturing method of the floating body equipment of the present invention includes a step of installing a desalination equipment for desalinating salt water in a used floating body portion that can float on the ocean.
  • An enclosure portion that stores fresh water produced by the desalination facility in the floating body portion and encloses a plurality of water storage tanks floating on the ocean in a preset area, and the enclosure portion in the floating body portion. It is characterized by including a fastening portion for fastening and a step of installing the fastening portion.
  • the present invention is a floating body facility provided with a desalination facility for desalinating salt water in a floating body portion of salt water floating on the ocean, in which a plurality of water storage tanks for storing the produced fresh water and floating on the ocean are set in a preset area.
  • the enclosure part to be enclosed in is connected to the floating body part. Therefore, it is not necessary to provide a water storage tank on the floating body portion, the floating body portion can be made smaller and lighter, and the manufacturing cost can be reduced.
  • the configuration example of the seawater desalination facility is shown. It is a top view of the floating body equipment provided with the seawater desalination equipment. It is a side view of the floating body equipment moored in the ocean. It is explanatory drawing which shows the freshwater storage work using the seawater desalination equipment. It is explanatory drawing which shows the guide work to the enclosure part of the water storage tank which stored fresh water. It is explanatory drawing which shows the towing work of the floating body equipment. It is explanatory drawing which shows the work of pulling up a water storage tank to the land. It is a top view which shows another example of a floating body equipment. It is explanatory drawing which shows the other example of a floating body equipment.
  • the seawater desalination facility 10 includes, for example, an intake pit 11 for taking in seawater from the ocean.
  • microfiltration equipment (described as MMF (MultiMediaFilter)) 12, which reduces turbidity by passing seawater taken in through the intake pit 11 through a packing layer of a plurality of types of filter media such as gravel and sand, and microfiltration. It is provided with an MMF tank 13 for storing the subsequent seawater, and an RO plant 14 for desalinating the seawater stored in the MMF tank 13 with a reverse osmosis membrane (RO membrane) 140.
  • RO membrane reverse osmosis membrane
  • seawater desalination equipment 10 if necessary, sterilizing NaClO (sodium hypochlorite) is added to seawater, MMF is washed, filter clogging is prevented, and RO membrane 140 is cleaned.
  • a chemical injection device 15 for supplying chemicals is provided.
  • the chemical injection device 15 is configured so that a part of the fresh water produced in the RO plant 14 can be supplied as diluted water used for cleaning the RO membrane 140.
  • the seawater desalination facility 10 is provided with a pump 17 for pumping seawater to pass seawater through the RO membrane 140 provided in the RO plant 14, and a generator for generating electric power for driving the pump 17. 16 is provided.
  • the floating body equipment 1 in which the above-mentioned seawater desalination equipment 10 is installed will be described.
  • the floating body equipment 1 of the present invention is provided on the floating body portion 2 as shown in FIGS. 2 and 3.
  • a pontoon not provided with navigation equipment can be used, and each equipment of the MMF 12, the chemical injection device 15, the RO plant 14, and the MMF tank 13 is installed on the floating body portion 2.
  • a generator 16 and a management facility 18 provided with a control unit for controlling the operation of each device are provided on the floating body portion 2.
  • the intake pit 11 is provided inside the floating body portion 2, for example, but the intake pit 11 may be provided on the floating body portion 2.
  • the fresh water produced by using the seawater desalination equipment 10 is stored in, for example, a lightweight plastic water storage tank 5.
  • the water storage tank 5 is not particularly limited as long as it can be transported / transported using the crane 101 or the trailer 102 described later, but is, for example, a 5000 L tank in the range of 3000 to 7000 liters (L). Can be illustrated as an example of using.
  • the water storage tank 5 for storing fresh water is floated on the ocean and is enclosed in a preset area of 250 to 400 m 2 on the ocean by an enclosure 3 arranged on the ocean.
  • An example can be exemplified in which the enclosure 3 is configured by connecting a plurality of buoys in a ring shape, floating them on the ocean, and providing a wire mesh in a ring shape so as to hang from the buoys into the sea.
  • the water storage tank 5 put into the area surrounded by the buoy is prevented from flowing out from the area surrounded by the enclosure 3 by the wire mesh.
  • the enclosure 3 is located at one end side in the length direction of the floating body portion 2 via a fastening portion 4 formed of, for example, a rope, and is located at the rear end side in the moving direction when the floating body equipment 1 moves over the ocean. Will be installed.
  • the floating body equipment 1 includes a mooring equipment 20 for mooring the floating body portion 2 at sea. Further, for example, on the lower surface of the floating body portion 2, an intake pipe 21 for taking in seawater toward the intake pit 11 and drainage for draining brine water after freshwater is separated in the RO plant 14 A pipe 22 is provided.
  • the seawater desalination equipment 10 for desalinating salt water is installed in the used floating body portion 2 that can float on the ocean (step S1). Further, the floating body portion 2 has an enclosure portion 3 for storing fresh water produced by the seawater desalination facility 10 and enclosing a plurality of water storage tanks 5 floating on the ocean in a preset area, and the enclosure portion 3 as a floating body.
  • a lashing section 4 to tie to the section 2 is installed (step S2).
  • Floating equipment 1 is manufactured by steps S1 and S2.
  • the floating equipment 1 is towed from land (port) by, for example, a tugboat and moves to a water sampling point.
  • land port
  • a tugboat In the ocean near the coast, there is concern about water pollution due to the effects of drainage from land, while if it goes too far offshore, the sea becomes rough and it becomes difficult to collect water. Therefore, for example, there is a case where a point 1 to 3 km away from the coast and surrounded by a tide embankment is used as a water sampling point.
  • the floating equipment 1 When the floating equipment 1 reaches the water sampling point, the floating equipment 1 is moored by the mooring equipment 20 and the tugboat is separated. After that, seawater is taken into the intake pit 11 via the intake pipe 21. The seawater taken into the intake pit 11 is supplied to the MMF 12 after being sterilized by adding NaClO as needed, and the turbidity is reduced by microfiltration in the MMF 12 and stored in the MMF tank 13. The seawater stored in the MMF tank 13 is pumped by the pump 17 and supplied to the RO plant 14. At this time, a part of seawater passes through the RO membrane 140 to remove salt and desalinate.
  • the RO plant 14 can desalinate, for example, 1000 m 3 of seawater per day.
  • the fresh water produced in the RO plant 14 is discharged from the RO plant 14 via the water pipe 51 as shown in FIG. Then, for example, the worker 100 rides on the work pontoon 104 floating on the ocean and fills the water storage tank 5 floating on the ocean with the fresh water discharged from the water pipe 51.
  • the water storage tank 5 is made of, for example, lightweight plastic, and can float on the sea surface even when fresh water having a specific density smaller than that of seawater is stored. Therefore, in the floating body equipment 1 of this example, the produced fresh water is stored by floating a plurality of water storage tanks 5 containing fresh water on the sea surface.
  • the worker 100 repeats the above-mentioned work, fills the plurality of water storage tanks 5 with fresh water, and guides the plurality of water storage tanks 5 to the enclosure 3.
  • the water storage tank 5 floating on the sea in the enclosure 3 may move, for example, by being carried by a wave or being blown by the wind. Even in such a case, the buoys and wire meshes constituting the enclosure 3 suppress the dissipation of the water storage tank 5, and the state of staying in the set area in the enclosure 3 is maintained.
  • the work of filling all the water storage tanks 5 of about a dozen to a hundred and several dozen with fresh water is completed, and all the water storage tanks 5 are guided into the area.
  • the tugboat 6 which is another ship is connected to the end portion (the tip side in the moving direction of the floating body portion 2) opposite to the end portion where the enclosure portion 3 is installed in the floating body portion 2.
  • the mooring of the floating equipment 1 is released, and the floating equipment 1 is towed to the vicinity of the land while the enclosure 3 surrounding the water storage tank 5 is connected by the tugboat 6.
  • the seawater desalination facility 10 can perform desalination for 24 hours, and can produce fresh water even during towing.
  • the floating body equipment 1 When the floating body equipment 1 arrives near the land, the floating body 2 is anchored so that the enclosure 3 is berthed on the land (Fig. 7). Further, as shown in FIG. 7, a crane 101 provided on land is used to pull up the water storage tank 5 in the enclosure 3. When the water storage tank 5 is pulled up to land, the tugboat 6 may stand by while being connected to the floating equipment 1. Alternatively, the tugboat 6 may be separated from the floating equipment 1, for example, the detached tugboat 6 may be used to tow another floating equipment 1.
  • the raised water storage tank 5 is mounted on a trailer 102 or the like by a crane 101 and transported to a demand area.
  • the floating body equipment 1 provided with the seawater desalination equipment 10 for desalinating seawater
  • fresh water is stored on the floating body portion 2 by adopting a method of floating the water storage tank 5 on the ocean. It is not necessary to provide the water storage tank 5. Therefore, since the water storage tank 5 is not provided, the floating body portion 2 can be made smaller and lighter, and the manufacturing cost can be reduced.
  • the capacity of the water storage tank 5 for storing fresh water is limited because the weight is large and the influence on the center of gravity of the floating body portion 2 is large when it is intended to be provided on the floating body portion 2.
  • the influence on the center of gravity of the floating body portion 2 is small, and the capacity is not easily limited, so that more fresh water can be stored. Therefore, the amount of fresh water that can be produced in one voyage increases, and the production cost of fresh water per unit volume can be reduced.
  • the desalination equipment is not limited to those configured to desalinate seawater using the RO plant 14.
  • a desalination facility using a multi-stage flash method in which heated seawater is boiled and evaporated in a depressurized evaporator and the evaporated water is liquefied to be desalinated may be used.
  • the desalinated salt water is not limited to seawater, and may be lake water of a salt lake.
  • the capacity of the water storage tank 5 is preferably 7000 L or less.
  • the preset area surrounded by the enclosure 3 can enclose more water storage tanks 5 by increasing the area.
  • the area of the preset area is preferably in the range of 250 to 400 m 2.
  • a tank may be provided inside the floating body portion 2 to store and discharge salt water as ballast water to adjust the weight of the floating body portion 2. Further, the tank may be used for the water intake pit 11, and the salt water for weight adjustment stored in the tank may be supplied to the MMF 12.
  • a desalination facility may be provided inside the floating body portion 2. Since the floating body equipment 1 is floated on the sea of salt water, the equipment on the floating body portion 2 is easily deteriorated by being exposed to wind and rain or salt water. Therefore, the useful life of the floating body equipment 1 can be extended by providing the desalination equipment inside the floating body portion 2 and avoiding the desalination equipment from being exposed to wind, rain or rain and wind. Instead of the method of providing the desalination equipment in the floating body portion 2, a roof covering the upper surface of the desalination equipment may be provided.
  • a ship equipped with a self-propelled equipment 23 for self-navigation may be applied to the floating body portion 2.
  • the self-propelled equipment 23 is provided at a position from the rear in the moving direction of the floating body portion 2 (the side on which the anchoring portion 4 for anchoring the enclosure 3 is installed).
  • the self-propelled equipment 23 includes a propulsion mechanism (not shown) provided on the hull of the floating body portion 2, a motor of the propulsion mechanism, an operation mechanism for operating the propulsion mechanism, and the like.
  • the self-propelled equipment 23 shown in FIG. 8 schematically shows a motor and an operation mechanism among them.
  • the enclosure 3 is freely configured to be separated from the floating portion 2, and the tugboat 103 is used to land the water storage tank 5 storing fresh water surrounded by the enclosure 3. It may be transported to the vicinity. Then, by connecting another enclosure 3 carried by the tugboat 103 to the floating equipment 1 side, the work of storing fresh water in the water storage tank 5 can be continued.

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  • Engineering & Computer Science (AREA)
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  • Water Supply & Treatment (AREA)
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Abstract

[Problem] To provide a floating facility that is provided with desalination equipment and can be produced at low cost. [Solution] A floating facility 1 that: is provided with seawater desalination equipment 10 that desalinates seawater; and, as a result of a water storage tank 5 that stores fresh water being floated on the sea, does not need the water storage tank 5 to be provided on a floating part 5. The exclusion of the water storage tank 5 makes it possible to reduce the size and weight of the floating part 2 and reduce production costs.

Description

浮体設備、及び浮体設備の製造方法Floating equipment and manufacturing method of floating equipment
　本発明は、塩水の洋上に浮かぶ浮体部上に淡水化設備を設けた浮体設備に関する。 The present invention relates to a floating device in which a desalination facility is provided on a floating body floating on the ocean of salt water.
　近年水不足の国や地域に淡水を提供するため、海水などの塩水を淡水化する淡水化設備の建設が進められている。淡水化設備としては、例えば蒸発法や逆浸透法を用いて、塩水を淡水化するプラントが知られており、淡水化するプラント設備を陸上に建設し、海洋からくみ上げた海水をプラントに供給して淡水化する構成が一般的である。 In recent years, in order to provide freshwater to countries and regions with water shortages, construction of desalination equipment for desalination of saltwater such as seawater is underway. As a desalination facility, for example, a plant for desalinating salt water using an evaporation method or a reverse osmosis method is known. A plant facility for desalination is constructed on land, and seawater pumped from the ocean is supplied to the plant. It is generally desalinated.
　このような淡水化設備において、近年では、災害時に迅速に現場に向かい、港湾などで淡水の製造を行う要請や、島嶼群内の島のように広い水域に点在する需要地に淡水を搬送する要請に応じた機動性に優れた淡水化設備の需要も高まっている。機動性に優れた淡水化設備としては、例えば特許文献１に記載のように、バージ船（台船）上に海水を淡水化する設備を設けた海水淡水化プラント(浮体設備)が知られている。この海水淡水化プラントは、海洋からくみ上げた海水を淡水化し、陸上に設けられた淡水貯蔵タンクに向けて、製造した淡水を供給することができる。
　一方で、淡水化設備の建設にあたっては、その製造コストやランニングコストの抑制が大きな課題であり、淡水化設備が設けられる浮体設備を含めたコストの抑制が求められている。 In recent years, in such desalination facilities, in the event of a disaster, there is a request to quickly go to the site to produce freshwater at ports, etc., and to transport freshwater to demand areas scattered in a wide water area such as islands in the island group. There is also an increasing demand for desalination equipment with excellent mobility in response to requests. As a desalination facility with excellent mobility, for example, as described in Patent Document 1, a seawater desalination plant (floating body facility) in which a facility for desalinating seawater is provided on a barge ship (boat) is known. There is. This seawater desalination plant can desalinate seawater pumped from the ocean and supply the produced freshwater to a freshwater storage tank provided on land.
On the other hand, in the construction of desalination equipment, it is a big issue to control the manufacturing cost and running cost, and it is required to control the cost including the floating equipment in which the desalination equipment is installed.
特表２０１２－５２７３７８号公報Special Table 2012-527378
　本発明は、このような背景の下になされたものであり、低コストで製造可能な、淡水化設備を設けた浮体設備を提供することにある。 The present invention has been made against such a background, and an object of the present invention is to provide a floating equipment provided with a desalination equipment that can be manufactured at low cost.
　本発明の浮体設備は、塩水の洋上に浮かぶ浮体部と、
　前記浮体部に設けられ、前記塩水を淡水化する淡水化設備と、
　前記淡水化設備にて製造される淡水を貯留した状態で前記洋上に浮かべられる複数の貯水タンクを予め設定された領域内に囲い込む囲い部と、
　前記囲い部を前記浮体部に繋ぎ止める繋ぎ止め部と、を備えたことを特徴とする The floating body equipment of the present invention includes a floating body portion that floats on the sea in salt water and
A desalination facility provided on the floating body to desalinate the salt water,
An enclosure that encloses a plurality of water storage tanks floating on the ocean in a state of storing fresh water produced by the desalination facility in a preset area.
It is characterized in that it is provided with a fastening portion for fastening the enclosure portion to the floating body portion.
　前記浮体設備は以下の特徴を備えていてもよい。
（ａ）前記淡水化設備は、逆浸透膜を用いて塩水を淡水化するものであること。
（ｂ）前記浮体部は、他の船舶に曳航されて移動する台船であること。
（ｃ）前記浮体部は、自航するための航行設備を備えた船舶であること。
（ｄ）前記囲い部は、貯水量が７０００Ｌ以下である洋上に浮かんだ状態の複数の前記貯水タンクを囲い込むことができるように構成されていること。
（ｅ）前記囲い部は、前記予め設定された領域が２５０～４００ｍ２の範囲内に設定されていること。
（ｆ）前記浮体部の内部には、塩水を貯留、排出して前記浮体部の重量を調節するタンクが設けられ、
　前記淡水化設備は、淡水化する前の塩水の精密ろ過を行う精密ろ過設備を備え、
　前記精密ろ過設備は、前記タンクに貯留された塩水を精密ろ過すること。 The floating equipment may have the following features.
(A) The desalination equipment shall use a reverse osmosis membrane to desalinate salt water.
(B) The floating body portion is a pontoon that is towed by another vessel and moves.
(C) The floating body portion shall be a ship equipped with navigation equipment for self-navigation.
(D) The enclosure is configured to be able to enclose a plurality of the water storage tanks floating on the ocean with a water storage capacity of 7,000 L or less.
(E) In the enclosure, the preset area is set within the range of 250 to 400 m 2.
(F) Inside the floating body portion, a tank for storing and discharging salt water to adjust the weight of the floating body portion is provided.
The desalination equipment is equipped with a microfiltration equipment that performs microfiltration of salt water before desalination.
The microfiltration equipment shall precisely filter the salt water stored in the tank.
　本発明の浮体設備の製造方法は、洋上に浮かぶことができる中古の浮体部に、塩水を淡水化する淡水化設備を設置する工程と、
　前記浮体部に、前記淡水化設備にて製造される淡水を貯留して前記洋上に浮かべられる複数の貯水タンクを予め設定された領域内に囲い込む囲い部と、前記囲い部を前記浮体部に繋ぎ止める繋ぎ止め部と、を設置する工程と、を含むことを特徴とする。 The manufacturing method of the floating body equipment of the present invention includes a step of installing a desalination equipment for desalinating salt water in a used floating body portion that can float on the ocean.
An enclosure portion that stores fresh water produced by the desalination facility in the floating body portion and encloses a plurality of water storage tanks floating on the ocean in a preset area, and the enclosure portion in the floating body portion. It is characterized by including a fastening portion for fastening and a step of installing the fastening portion.
　本発明は、塩水の洋上に浮かぶ浮体部に塩水を淡水化する淡水化設備を設けた浮体設備において、製造された淡水を貯留して洋上に浮かべられる複数の貯水タンクを予め設定された領域内に囲い込む囲い部を浮体部に繋ぎ止めている。そのため浮体部上に貯水タンクを設ける必要がなく、浮体部を小型化、軽量化することができ、製造コストを下げることができる。 The present invention is a floating body facility provided with a desalination facility for desalinating salt water in a floating body portion of salt water floating on the ocean, in which a plurality of water storage tanks for storing the produced fresh water and floating on the ocean are set in a preset area. The enclosure part to be enclosed in is connected to the floating body part. Therefore, it is not necessary to provide a water storage tank on the floating body portion, the floating body portion can be made smaller and lighter, and the manufacturing cost can be reduced.
海水淡水化設備の構成例を示すである。The configuration example of the seawater desalination facility is shown. 海水淡水化設備が設けられた浮体設備の平面図である。It is a top view of the floating body equipment provided with the seawater desalination equipment. 海洋に係留された前記浮体設備の側面図である。It is a side view of the floating body equipment moored in the ocean. 海水淡水化設備を用いた淡水の貯留作業を示す説明図である。It is explanatory drawing which shows the freshwater storage work using the seawater desalination equipment. 淡水を貯留した貯水タンクの囲い部への誘導作業を示す説明図である。It is explanatory drawing which shows the guide work to the enclosure part of the water storage tank which stored fresh water. 前記浮体設備の曳航作業を示す説明図である。It is explanatory drawing which shows the towing work of the floating body equipment. 貯水タンクの陸への引き上げ作業を示す説明図である。It is explanatory drawing which shows the work of pulling up a water storage tank to the land. 浮体設備の他の例を示す平面図である。It is a top view which shows another example of a floating body equipment. 浮体設備のさらに他の例を示す説明図である。It is explanatory drawing which shows the other example of a floating body equipment.
　本例の浮体設備１に設けられる淡水化設備であり、塩水である海水を淡水化する海水淡水化設備１０の処理の流れについて説明する。図１に示すように海水淡水化設備１０は、例えば海洋から海水を取り込むための取水ピット１１を備えている。また取水ピット１１介して取り込んだ海水を砂利や砂などの複数種類のろ材の充填層を通過させ精密ろ過して濁度を下げる精密ろ過設備（ＭＭＦ（Multi Media Filter）と記載）１２、精密ろ過後の海水を貯留するＭＭＦタンク１３、ＭＭＦタンク１３に貯留された海水を逆浸透膜（Reverse Osmosis membrane：ＲＯ膜）１４０により淡水化するＲＯプラント１４を備えている。 The processing flow of the seawater desalination equipment 10 which is the desalination equipment provided in the floating body equipment 1 of this example and which desalinates seawater which is salt water will be described. As shown in FIG. 1, the seawater desalination facility 10 includes, for example, an intake pit 11 for taking in seawater from the ocean. In addition, microfiltration equipment (described as MMF (MultiMediaFilter)) 12, which reduces turbidity by passing seawater taken in through the intake pit 11 through a packing layer of a plurality of types of filter media such as gravel and sand, and microfiltration. It is provided with an MMF tank 13 for storing the subsequent seawater, and an RO plant 14 for desalinating the seawater stored in the MMF tank 13 with a reverse osmosis membrane (RO membrane) 140.
　さらに海水淡水化設備１０には、必要に応じて海水への殺菌用のＮａＣｌＯ（次亜塩素酸ナトリウム）の投入、ＭＭＦの洗浄、フィルターの目詰まり防止、ＲＯ膜１４０の洗浄を行うための化学薬品を供給する薬注装置１５を備えている。薬注装置１５には、ＲＯプラント１４にて製造される淡水の一部がＲＯ膜１４０の洗浄に用いる希釈水として供給できるように構成されている。
　また海水淡水化設備１０には、ＲＯプラント１４に設けられたＲＯ膜１４０に海水を通過させるために海水を圧送するポンプ１７が設けられると共に、当該ポンプ１７を駆動する電力を発電するためのジェネレータ１６が設けられている。 Further, in the seawater desalination equipment 10, if necessary, sterilizing NaClO (sodium hypochlorite) is added to seawater, MMF is washed, filter clogging is prevented, and RO membrane 140 is cleaned. A chemical injection device 15 for supplying chemicals is provided. The chemical injection device 15 is configured so that a part of the fresh water produced in the RO plant 14 can be supplied as diluted water used for cleaning the RO membrane 140.
Further, the seawater desalination facility 10 is provided with a pump 17 for pumping seawater to pass seawater through the RO membrane 140 provided in the RO plant 14, and a generator for generating electric power for driving the pump 17. 16 is provided.
　続いて上述の海水淡水化設備１０が設置される浮体設備１について説明する。本発明の浮体設備１は、図２、図３に示すように、浮体部２上に設けられる。浮体部２には、例えば航行設備が設けられていない台船を用いることができ、浮体部２上にＭＭＦ１２、薬注装置１５、ＲＯプラント１４、及びＭＭＦタンク１３の各設備が設置される。海水淡水化設備１０を設置する台船として、他の用途で使用された中古船を利用することにより、浮体設備１の建造コストを低減することができる。さらに浮体部２上には、ジェネレータ１６と、各機器の運転制御を行う制御部が設けられた管理施設１８と、が設けられている。本例では取水ピット１１は、例えば浮体部２の内部に設けられているが、取水ピット１１を浮体部２上に設けてもよい。 Next, the floating body equipment 1 in which the above-mentioned seawater desalination equipment 10 is installed will be described. The floating body equipment 1 of the present invention is provided on the floating body portion 2 as shown in FIGS. 2 and 3. For the floating body portion 2, for example, a pontoon not provided with navigation equipment can be used, and each equipment of the MMF 12, the chemical injection device 15, the RO plant 14, and the MMF tank 13 is installed on the floating body portion 2. By using a used ship used for other purposes as a pontoon for installing the seawater desalination equipment 10, the construction cost of the floating body equipment 1 can be reduced. Further, a generator 16 and a management facility 18 provided with a control unit for controlling the operation of each device are provided on the floating body portion 2. In this example, the intake pit 11 is provided inside the floating body portion 2, for example, but the intake pit 11 may be provided on the floating body portion 2.
　本例の浮体設備１において、海水淡水化設備１０を用いて製造される淡水は、例えば軽量なプラスチック製の貯水タンク５に貯留される。貯水タンク５は、後述するクレーン１０１やトレーラー１０２を用いた搬送・輸送を行うことが可能な大きさであれば特段の限定はないが、例えば３０００～７０００リットル（Ｌ）の範囲の５０００Ｌのものを用いる場合を例示できる。 In the floating body equipment 1 of this example, the fresh water produced by using the seawater desalination equipment 10 is stored in, for example, a lightweight plastic water storage tank 5. The water storage tank 5 is not particularly limited as long as it can be transported / transported using the crane 101 or the trailer 102 described later, but is, for example, a 5000 L tank in the range of 3000 to 7000 liters (L). Can be illustrated as an example of using.
　淡水を貯留した貯水タンク５は、洋上に浮かべられ、洋上に配置された囲い部３により洋上の予め設定された面積２５０～４００ｍ２の領域内に囲い込まれている。囲い部３は複数のブイを環状に連結して洋上に浮かべ、ブイから海中に垂れ下がるように、環状に金網を設けて構成する場合を例示できる。ブイで囲まれた領域に投入された貯水タンク５は、金網により囲い部３に囲まれる領域からの流出が防止される。当該囲い部３は、例えばロープなどにより構成される繋ぎ止め部４を介して、浮体部２の長さ方向一端側であって、浮体設備１が洋上を移動する際の移動方向後端側に設置される。 The water storage tank 5 for storing fresh water is floated on the ocean and is enclosed in a preset area of 250 to 400 m 2 on the ocean by an enclosure 3 arranged on the ocean. An example can be exemplified in which the enclosure 3 is configured by connecting a plurality of buoys in a ring shape, floating them on the ocean, and providing a wire mesh in a ring shape so as to hang from the buoys into the sea. The water storage tank 5 put into the area surrounded by the buoy is prevented from flowing out from the area surrounded by the enclosure 3 by the wire mesh. The enclosure 3 is located at one end side in the length direction of the floating body portion 2 via a fastening portion 4 formed of, for example, a rope, and is located at the rear end side in the moving direction when the floating body equipment 1 moves over the ocean. Will be installed.
　浮体設備１は、浮体部２を海上に係留する係留設備２０を備えている。さらに例えば浮体部２の下面には、取水ピット１１へ向けて海水を取水するための取水管２１と、ＲＯプラント１４にて淡水が分離された後のかん水（brine water）を排水するための排水管２２と、が設けられている。
　浮体設備１の製造方法について説明すると、まず洋上に浮かぶことができる中古の浮体部２に、塩水を淡水化する海水淡水化設備１０を設置する（ステップＳ１）。また浮体部２に、海水淡水化設備１０にて製造される淡水を貯留して洋上に浮かべられる複数の貯水タンク５を予め設定された領域内に囲い込む囲い部３と、囲い部３を浮体部２に繋ぎ止める繋ぎ止め部４と、を設置する（ステップＳ２）。このステップＳ１、Ｓ２により浮体設備１が製造される。 The floating body equipment 1 includes a mooring equipment 20 for mooring the floating body portion 2 at sea. Further, for example, on the lower surface of the floating body portion 2, an intake pipe 21 for taking in seawater toward the intake pit 11 and drainage for draining brine water after freshwater is separated in the RO plant 14 A pipe 22 is provided.
Explaining the manufacturing method of the floating body equipment 1, first, the seawater desalination equipment 10 for desalinating salt water is installed in the used floating body portion 2 that can float on the ocean (step S1). Further, the floating body portion 2 has an enclosure portion 3 for storing fresh water produced by the seawater desalination facility 10 and enclosing a plurality of water storage tanks 5 floating on the ocean in a preset area, and the enclosure portion 3 as a floating body. A lashing section 4 to tie to the section 2 is installed (step S2). Floating equipment 1 is manufactured by steps S1 and S2.
　続いて、上述の構成を備える浮体設備１の作用について図４～図８を参照しながら説明する。浮体設備１は、陸（港）から、例えばタグボートにより曳航されて採水地点まで移動する。沿岸に近い海洋は、陸上からの排水等の影響により水の汚染が懸念され、一方沖合に出すぎると海が荒れやすくなり、採水が困難になる。そのため、例えば沿岸から１～３ｋｍはなれ、防潮堤により周りを囲まれた地点を採水地点とする場合を挙げることができる。 Subsequently, the operation of the floating body equipment 1 having the above configuration will be described with reference to FIGS. 4 to 8. The floating equipment 1 is towed from land (port) by, for example, a tugboat and moves to a water sampling point. In the ocean near the coast, there is concern about water pollution due to the effects of drainage from land, while if it goes too far offshore, the sea becomes rough and it becomes difficult to collect water. Therefore, for example, there is a case where a point 1 to 3 km away from the coast and surrounded by a tide embankment is used as a water sampling point.
　浮体設備１が採水地点に到達すると、浮体設備１を係留設備２０により係留するとともに、タグボートが切り離される。その後、取水管２１を介して海水を取水ピット１１内に取り込む。取水ピット１１に取り込まれた海水は、必要に応じてＮａＣｌＯが投入されて殺菌された後、ＭＭＦ１２に供給され、ＭＭＦ１２における精密ろ過により濁度が下げられてＭＭＦタンク１３に貯留される。ＭＭＦタンク１３に貯留された海水は、ポンプ１７により圧送されて、ＲＯプラント１４に供給される。このとき海水の一部が、ＲＯ膜１４０を通過することにより塩分が除去されて淡水化される。ＲＯプラント１４は、例えば１日当たり１０００ｍ３の海水を淡水化することができる。 When the floating equipment 1 reaches the water sampling point, the floating equipment 1 is moored by the mooring equipment 20 and the tugboat is separated. After that, seawater is taken into the intake pit 11 via the intake pipe 21. The seawater taken into the intake pit 11 is supplied to the MMF 12 after being sterilized by adding NaClO as needed, and the turbidity is reduced by microfiltration in the MMF 12 and stored in the MMF tank 13. The seawater stored in the MMF tank 13 is pumped by the pump 17 and supplied to the RO plant 14. At this time, a part of seawater passes through the RO membrane 140 to remove salt and desalinate. The RO plant 14 can desalinate, for example, 1000 m 3 of seawater per day.
　ＲＯプラント１４で製造された淡水は、図４に示すように送水管５１を介してＲＯプラント１４から排出される。そして例えば作業者１００が、洋上に浮かべた作業用ポンツーン１０４に乗り、送水管５１から排出される淡水を洋上に浮かべた貯水タンク５に充填する作業を行う。
　貯水タンク５は、例えば軽量のプラスチック製であり、海水より比重が小さな淡水を貯留した状態でも海面に浮かぶことができる。そこで本例の浮体設備１においては、淡水を収容した複数の貯水タンク５を海面に浮かべておくことにより、製造した淡水の貯留を行う。 The fresh water produced in the RO plant 14 is discharged from the RO plant 14 via the water pipe 51 as shown in FIG. Then, for example, the worker 100 rides on the work pontoon 104 floating on the ocean and fills the water storage tank 5 floating on the ocean with the fresh water discharged from the water pipe 51.
The water storage tank 5 is made of, for example, lightweight plastic, and can float on the sea surface even when fresh water having a specific density smaller than that of seawater is stored. Therefore, in the floating body equipment 1 of this example, the produced fresh water is stored by floating a plurality of water storage tanks 5 containing fresh water on the sea surface.
　図２の平面図に例示するように、浮体部２の側縁近傍位置にＲＯプラント１４が配置され、浮体部２の後端側に囲い部３がつながれている場合は、囲い部から離れた位置にて貯水タンク５への淡水の貯留作業を行う場合がある。この場合には、貯水タンク５に淡水を充填すると、作業者１００は、貯水タンク５を密閉し、図５に示すように洋上に浮かべた貯水タンク５を移動させて囲い部３に囲まれた領域に誘導する。なお、図示の便宜上、図４、図５に記載の浮体部２におけるＲＯプラント１４、囲い部３の配置位置や作業者１００が各作業を行う位置は、図２に示した平面図におけるＲＯプラント１４や囲い部３の配置位置とは対応していない。 As illustrated in the plan view of FIG. 2, when the RO plant 14 is arranged near the side edge of the floating body portion 2 and the enclosure portion 3 is connected to the rear end side of the floating body portion 2, it is separated from the enclosure portion. Fresh water may be stored in the water storage tank 5 at the position. In this case, when the water storage tank 5 is filled with fresh water, the worker 100 seals the water storage tank 5, moves the water storage tank 5 floating on the ocean as shown in FIG. 5, and is surrounded by the enclosure 3. Guide to the area. For convenience of illustration, the arrangement positions of the RO plant 14 and the enclosure 3 in the floating body 2 shown in FIGS. 4 and 5 and the positions where the worker 100 performs each work are the RO plants in the plan view shown in FIG. It does not correspond to the arrangement position of 14 and the enclosure 3.
　作業者１００は、上述の作業を繰り返し、複数の貯水タンク５に対して、淡水の充填、及び囲い部３への誘導作業を実施する。これらの作業の期間中、囲い部３内の海上に浮かぶ貯水タンク５が、例えば波に運ばれたり風にあおられたりして移動する場合がある。このような場合であっても、囲い部３を構成するブイや金網によって、貯水タンク５の散逸が抑えられ、囲い部３内の設定された領域に留まった状態が保たれる。 The worker 100 repeats the above-mentioned work, fills the plurality of water storage tanks 5 with fresh water, and guides the plurality of water storage tanks 5 to the enclosure 3. During these operations, the water storage tank 5 floating on the sea in the enclosure 3 may move, for example, by being carried by a wave or being blown by the wind. Even in such a case, the buoys and wire meshes constituting the enclosure 3 suppress the dissipation of the water storage tank 5, and the state of staying in the set area in the enclosure 3 is maintained.
　例えば十数個～百数十個程度のすべての貯水タンク５に淡水を充填する作業が完了し、前記領域内にすべての貯水タンク５が誘導される。　
　しかる後、例えば図６に示すように、浮体部２における囲い部３が設置される端部と反対側の端部（浮体部２の移動方向先端側）に他の船舶であるタグボート６を連結する。そして浮体設備１の係留を解除し、タグボート６により貯水タンク５を囲う囲い部３を連結したまま、浮体設備１を陸地付近まで曳航する。なお海水淡水化設備１０は、２４時間淡水化を行うことが可能であり、曳航中にも淡水を生産することは可能である。 For example, the work of filling all the water storage tanks 5 of about a dozen to a hundred and several dozen with fresh water is completed, and all the water storage tanks 5 are guided into the area.
After that, for example, as shown in FIG. 6, the tugboat 6 which is another ship is connected to the end portion (the tip side in the moving direction of the floating body portion 2) opposite to the end portion where the enclosure portion 3 is installed in the floating body portion 2. To do. Then, the mooring of the floating equipment 1 is released, and the floating equipment 1 is towed to the vicinity of the land while the enclosure 3 surrounding the water storage tank 5 is connected by the tugboat 6. The seawater desalination facility 10 can perform desalination for 24 hours, and can produce fresh water even during towing.
　浮体設備１が陸地付近に到着すると、囲い部３が陸地に接岸した状態となるように浮体部２を停泊させる（図７）。さらに図７に示すように陸上に設けられたクレーン１０１を用いて囲い部３内の貯水タンク５を引き上げる。なお貯水タンク５を陸に引き上げるときに、タグボート６は、浮体設備１に連結されたまま待機していてもよい。あるいは、タグボート６を浮体設備１から切り離してもよく、例えば切り離したタグボート６により、他の浮体設備１の曳航を行うようにしてもよい。引き上げられた貯水タンク５は、クレーン１０１によりトレーラー１０２などに搭載され、需要地へ輸送される。 When the floating body equipment 1 arrives near the land, the floating body 2 is anchored so that the enclosure 3 is berthed on the land (Fig. 7). Further, as shown in FIG. 7, a crane 101 provided on land is used to pull up the water storage tank 5 in the enclosure 3. When the water storage tank 5 is pulled up to land, the tugboat 6 may stand by while being connected to the floating equipment 1. Alternatively, the tugboat 6 may be separated from the floating equipment 1, for example, the detached tugboat 6 may be used to tow another floating equipment 1. The raised water storage tank 5 is mounted on a trailer 102 or the like by a crane 101 and transported to a demand area.
　上述の実施の形態によれば、海水を淡水化する海水淡水化設備１０を設けた浮体設備１において、貯水タンク５を洋上に浮かべる手法を採用することにより、浮体部２上に淡水を貯留する貯水タンク５を設ける必要がない。そのため貯水タンク５を設けない分、浮体部２を小型化、軽量化することができ、製造コストを下げることができる。 According to the above-described embodiment, in the floating body equipment 1 provided with the seawater desalination equipment 10 for desalinating seawater, fresh water is stored on the floating body portion 2 by adopting a method of floating the water storage tank 5 on the ocean. It is not necessary to provide the water storage tank 5. Therefore, since the water storage tank 5 is not provided, the floating body portion 2 can be made smaller and lighter, and the manufacturing cost can be reduced.
　また淡水を貯留する貯水タンク５は、重量が大きく、浮体部２上に設けようとしたときに浮体部２の重心に与える影響が大きいため容量が制限される。本発明は、貯水タンク５を洋上に浮かべるため浮体部２の重心に与える影響が小さく、容量が制限されにくいため、より多くの淡水を貯留することができる。そのため一回の航行で製造できる淡水の量が多くなり、単位容積当たりの淡水の製造コストを安くすることができる。 Further, the capacity of the water storage tank 5 for storing fresh water is limited because the weight is large and the influence on the center of gravity of the floating body portion 2 is large when it is intended to be provided on the floating body portion 2. In the present invention, since the water storage tank 5 is floated on the ocean, the influence on the center of gravity of the floating body portion 2 is small, and the capacity is not easily limited, so that more fresh water can be stored. Therefore, the amount of fresh water that can be produced in one voyage increases, and the production cost of fresh water per unit volume can be reduced.
　淡水化設備は、ＲＯプラント１４を用いて海水の淡水化を行う構成のものに限定されない。例えば加熱された海水を減圧された蒸発器で沸騰蒸発させて、蒸発した水分を液化して淡水化する多段フラッシュ法を用いた淡水化設備でもよい。淡水化される塩水も海水に限定されるものではなく、塩湖の湖水であってもよい。 The desalination equipment is not limited to those configured to desalinate seawater using the RO plant 14. For example, a desalination facility using a multi-stage flash method in which heated seawater is boiled and evaporated in a depressurized evaporator and the evaporated water is liquefied to be desalinated may be used. The desalinated salt water is not limited to seawater, and may be lake water of a salt lake.
　また個々の貯水タンク５の容量が大きくなると、貯水タンク５を囲い部３に誘導することが難しくなる。さらに貯水タンク５を陸地に引き上げるクレーンも大型化してしまう。そのため貯水タンク５の容量は７０００Ｌ以下であることが好ましい。 Further, when the capacity of each water storage tank 5 becomes large, it becomes difficult to guide the water storage tank 5 to the enclosure 3. Furthermore, the crane that pulls up the water storage tank 5 to the land will also become large. Therefore, the capacity of the water storage tank 5 is preferably 7000 L or less.
　このほか、囲い部３によって囲まれる予め設定された領域は、その面積が広くなることでより多くの貯水タンク５を囲い込むことができる。一方で当該領域の面積が広くなりすぎることで、浮体設備１が洋上を移動するときに航行の妨げになるおそれもある。このような場合には、予め設定された領域の面積は２５０～４００ｍ２の範囲内であることが好ましい。 In addition, the preset area surrounded by the enclosure 3 can enclose more water storage tanks 5 by increasing the area. On the other hand, if the area of the area becomes too large, the floating body equipment 1 may hinder navigation when moving over the ocean. In such a case, the area of the preset area is preferably in the range of 250 to 400 m 2.
　さらに浮体部２の内部に、バラスト水として塩水を貯留、排出して浮体部２の重量を調節するタンクを設けてもよい。さらに当該タンクを取水ピット１１に用いてもよく、タンクに貯留されている重量調整用の塩水をＭＭＦ１２に供給するようにしてもよい。 Further, a tank may be provided inside the floating body portion 2 to store and discharge salt water as ballast water to adjust the weight of the floating body portion 2. Further, the tank may be used for the water intake pit 11, and the salt water for weight adjustment stored in the tank may be supplied to the MMF 12.
　また淡水化設備を浮体部２の内部に設けてもよい。浮体設備１は、塩水の洋上に浮かべられるため、浮体部２上の設備は、風雨や、塩水にさらされて劣化しやすい。そのため、淡水化設備を浮体部２の内部に設け、淡水化設備が、風雨や雨風に晒されることを避けることで、浮体設備１の耐用年数を伸ばすことができる。浮体部２内に淡水化設備を設ける手法に替えて、淡水化設備の上面を覆う屋根を設けてもよい。 Further, a desalination facility may be provided inside the floating body portion 2. Since the floating body equipment 1 is floated on the sea of salt water, the equipment on the floating body portion 2 is easily deteriorated by being exposed to wind and rain or salt water. Therefore, the useful life of the floating body equipment 1 can be extended by providing the desalination equipment inside the floating body portion 2 and avoiding the desalination equipment from being exposed to wind, rain or rain and wind. Instead of the method of providing the desalination equipment in the floating body portion 2, a roof covering the upper surface of the desalination equipment may be provided.
　本発明は、図８に示すように自航するための自航設備２３を備えた船舶を浮体部２に適用してもよい。例えばこの例では、浮体部２の移動方向の後方よりの位置（囲い部３を繋ぎ止める繋ぎ止め部４が設置される側）に自航設備２３が設けられている。自航設備２３としては、浮体部２の船体に設けられた不図示の推進機構、当該推進機構の動力機、推進機構を操作する操作機構などを備える。図８に示す自航設備２３は、これらのうちの動力機や操作機構を模式的に示している。　
　このような構成にすることで、浮体部２を曳航するタグボート６を用いる必要がない。そのため製造した淡水を各地に搬送するにあたって、タグボート６の運用スケジュールを考慮する必要がなく速やかに搬送することができる。 In the present invention, as shown in FIG. 8, a ship equipped with a self-propelled equipment 23 for self-navigation may be applied to the floating body portion 2. For example, in this example, the self-propelled equipment 23 is provided at a position from the rear in the moving direction of the floating body portion 2 (the side on which the anchoring portion 4 for anchoring the enclosure 3 is installed). The self-propelled equipment 23 includes a propulsion mechanism (not shown) provided on the hull of the floating body portion 2, a motor of the propulsion mechanism, an operation mechanism for operating the propulsion mechanism, and the like. The self-propelled equipment 23 shown in FIG. 8 schematically shows a motor and an operation mechanism among them.
With such a configuration, it is not necessary to use a tugboat 6 towing the floating body portion 2. Therefore, when transporting the produced fresh water to various places, it is not necessary to consider the operation schedule of the tugboat 6, and the fresh water can be transported promptly.
　さらに別の例として、図９に示すように浮体部２から囲い部３を切り離し自在に構成し、タグボート１０３を用いて、淡水を貯留した貯水タンク５が囲い部３に囲まれた状態で陸地付近まで搬送するようにしてもよい。
　そして浮体設備１側にはタグボート１０３が運んできた別の囲い部３を接続することにより、貯水タンク５に淡水を貯留する作業を継続することができる。 As yet another example, as shown in FIG. 9, the enclosure 3 is freely configured to be separated from the floating portion 2, and the tugboat 103 is used to land the water storage tank 5 storing fresh water surrounded by the enclosure 3. It may be transported to the vicinity.
Then, by connecting another enclosure 3 carried by the tugboat 103 to the floating equipment 1 side, the work of storing fresh water in the water storage tank 5 can be continued.
　図９に示す例においては、貯水タンク５に貯水した淡水を陸地へと搬送するにあたって浮体設備１を移動する必要がなく、浮体設備１を採水地点に係留したまま、塩水の淡水化を継続することができる。そのため浮体設備１の移動回数を少なくすることができ、浮体設備１の稼働率を向上させることができる。
　また図９に示すように浮体部２上にて貯水タンク５に淡水を貯留し、浮体部２上から囲い部３内に貯水タンク５を投入するようにしてもよい。 In the example shown in FIG. 9, it is not necessary to move the floating body equipment 1 to transport the fresh water stored in the water storage tank 5 to the land, and the desalination of salt water is continued while the floating body equipment 1 is moored at the water sampling point. can do. Therefore, the number of movements of the floating equipment 1 can be reduced, and the operating rate of the floating equipment 1 can be improved.
Further, as shown in FIG. 9, fresh water may be stored in the water storage tank 5 on the floating body portion 2, and the water storage tank 5 may be charged into the enclosed portion 3 from above the floating body portion 2.
１　　　　　　　　浮体設備
２　　　　　　　　浮体部
３　　　　　　　　囲い部
４　　　　　　　　繋ぎ止め部
５　　　　　　　　貯水タンク
１０　　　　　　　海水淡水化設備

 
  1 Floating equipment 2 Floating part 3 Enclosing part 4 Tethering part 5 Water storage tank 10 Seawater desalination equipment

Claims (10)

  1. 　塩水の洋上に浮かぶ浮体部と、
    　前記浮体部に設けられ、前記塩水を淡水化する淡水化設備と、
    　前記淡水化設備にて製造される淡水を貯留した状態で前記洋上に浮かべられる複数の貯水タンクを予め設定された領域内に囲い込む囲い部と、
    　前記囲い部を前記浮体部に繋ぎ止める繋ぎ止め部と、を備えたことを特徴とする浮体設備。     The floating part that floats on the sea of salt water,
    A desalination facility provided on the floating body to desalinate the salt water,
    An enclosure that encloses a plurality of water storage tanks floating on the ocean in a state of storing fresh water produced by the desalination facility in a preset area.
    Floating equipment provided with a fastening portion for connecting the enclosure portion to the floating body portion.
  2. 　前記淡水化設備は、逆浸透膜を用いて塩水を淡水化するものであることを特徴とする請求項１に記載の浮体設備。 The floating equipment according to claim 1, wherein the desalination equipment is for desalinating salt water using a reverse osmosis membrane.
  3. 　前記浮体部は、他の船舶に曳航されて移動する台船であることを特徴とする請求項１に記載の浮体設備。 The floating device according to claim 1, wherein the floating body portion is a pontoon that is towed by another ship and moves.
  4. 　前記浮体部は、自航するための航行設備を備えた船舶であることを特徴とする請求項１に記載の浮体設備。 The floating body equipment according to claim 1, wherein the floating body portion is a ship provided with navigation equipment for self-navigation.
  5. 　前記囲い部は、貯水量が７０００Ｌ以下である洋上に浮かんだ状態の複数の前記貯水タンクを囲い込むことができるように構成されていることを特徴とする請求項１に記載の浮体設備。 The floating equipment according to claim 1, wherein the enclosure is configured to enclose a plurality of the water storage tanks floating on the ocean having a water storage capacity of 7,000 L or less.
  6. 　前記囲い部に囲は、前記予め設定された領域が２５０～４００ｍ２の範囲内に設定されていることを特徴とする請求項５に記載の浮体設備。 The floating equipment according to claim 5, wherein the enclosure is set in a range of 250 to 400 m 2 in a preset area.
  7. 　前記浮体部の内部には、塩水を貯留、排出して前記浮体部の重量を調節するタンクが設けられ、
    　前記淡水化設備は、淡水化する前の塩水の精密ろ過を行う精密ろ過設備を備え、
    　前記精密ろ過設備は、前記タンクに貯留された塩水を精密ろ過することを特徴とする請求項１に記載の浮体設備。     Inside the floating body portion, a tank for storing and discharging salt water to adjust the weight of the floating body portion is provided.
    The desalination equipment is equipped with a microfiltration equipment that performs microfiltration of salt water before desalination.
    The floating equipment according to claim 1, wherein the microfiltration equipment precisely filters the salt water stored in the tank.
  8. 　洋上に浮かぶことができる中古の浮体部に、塩水を淡水化する淡水化設備を設置する工程と、
    　前記浮体部に、前記淡水化設備にて製造される淡水を貯留して前記洋上に浮かべられる複数の貯水タンクを予め設定された領域内に囲い込む囲い部と、前記囲い部を前記浮体部に繋ぎ止める繋ぎ止め部と、を設置する工程と、を含むことを特徴とする浮体設備の製造方法。     The process of installing a desalination facility to desalinate salt water in a used floating body that can float on the ocean, and
    An enclosure portion that stores fresh water produced by the desalination facility in the floating body portion and encloses a plurality of water storage tanks floating on the ocean in a preset area, and the enclosure portion in the floating body portion. A method for manufacturing a floating body equipment, which comprises a step of installing a tie-breaking portion and a step of tying the tie-breaking portion.
  9. 　前記浮体部は、他の船舶に曳航されて移動する台船であることを特徴とする請求項８に記載の浮体設備の製造方法。 The method for manufacturing a floating body equipment according to claim 8, wherein the floating body portion is a pontoon that is towed and moved by another ship.
  10. 　前記浮体部は、自航するための航行設備を備えた船舶であることを特徴とする請求項８に記載の浮体設備の製造方法。

          The method for manufacturing a floating body equipment according to claim 8, wherein the floating body portion is a ship provided with navigation equipment for self-navigation.
PCT/JP2019/050168 2019-12-20 2019-12-20 Floating facility and production method for floating facility WO2021124569A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5920795A (en) * 1982-07-28 1984-02-02 Ishikawajima Harima Heavy Ind Co Ltd Ship for converting seawater into fresh water by utilizing tanker
JP2002061237A (en) * 2000-08-18 2002-02-28 Shinichiro Hayashi Floating body device
JP2007309295A (en) * 2006-05-22 2007-11-29 Toshiba Corp Desalination power generation plant
JP2012527378A (en) * 2009-05-26 2012-11-08 デウ シップビルディング アンド マリーン エンジニアリング カンパニー リミテッド Barge-mounted seawater desalination plant and its installation method
JP2013194525A (en) * 2012-03-15 2013-09-30 Kyb Co Ltd Wave energy conversion system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5920795A (en) * 1982-07-28 1984-02-02 Ishikawajima Harima Heavy Ind Co Ltd Ship for converting seawater into fresh water by utilizing tanker
JP2002061237A (en) * 2000-08-18 2002-02-28 Shinichiro Hayashi Floating body device
JP2007309295A (en) * 2006-05-22 2007-11-29 Toshiba Corp Desalination power generation plant
JP2012527378A (en) * 2009-05-26 2012-11-08 デウ シップビルディング アンド マリーン エンジニアリング カンパニー リミテッド Barge-mounted seawater desalination plant and its installation method
JP2013194525A (en) * 2012-03-15 2013-09-30 Kyb Co Ltd Wave energy conversion system

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