CN107469624B - Offshore fresh water production and supply system and device directly driven by ocean renewable energy - Google Patents
Offshore fresh water production and supply system and device directly driven by ocean renewable energy Download PDFInfo
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- CN107469624B CN107469624B CN201710809483.3A CN201710809483A CN107469624B CN 107469624 B CN107469624 B CN 107469624B CN 201710809483 A CN201710809483 A CN 201710809483A CN 107469624 B CN107469624 B CN 107469624B
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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
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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
- B01D61/04—Feed pretreatment
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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
- B01D61/06—Energy recovery
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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
- B01D61/12—Controlling or regulating
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- 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
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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
- G06Q30/0613—Third-party assisted
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/001—Build in apparatus for autonomous on board water supply and wastewater treatment (e.g. for aircrafts, cruiseships, oil drilling platforms, railway trains, space stations)
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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
- 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
Abstract
The invention discloses an offshore fresh water production and supply system and device directly driven by ocean renewable energy, which comprises a headquarter base and a plurality of offshore fresh water production platforms arranged along an offshore route, wherein the headquarter base comprises a monitoring center and an operating center, the monitoring center is in wireless communication with the operating center, the offshore fresh water production platforms are in wireless communication with the monitoring center, the offshore fresh water production platforms can meet the fresh water requirement of ships with longer routes, and the ships do not need to store more fresh water in the sailing process, so that the fuel consumption can be saved; the offshore floating platform adopts a mooring technology combining an anchor and a ballast body, can adapt to a large range of sea conditions, is not limited by ocean depth and severe ocean weather, utilizes offshore wind energy and wave energy to directly drive the reverse osmosis seawater desalination system to produce fresh water, has less required equipment, high energy efficiency and low comprehensive cost, can pave roads of offshore silks, and can also produce and supply fresh water for offshore fishery operation ships and offshore submarine resource development platforms.
Description
Technical Field
The invention relates to an offshore fresh water production and supply system, and belongs to the technical field of comprehensive utilization of ocean energy.
Background
The maritime silk road is a maritime channel which is communicated with other countries and regions in the world from ancient times in economic culture, and the route starts from the southeast coast of China, passes through the mid-south peninsula and the countries of the south sea, passes through the Indian ocean, enters the red sea and finally reaches the east Africa and Europe. The offshore silk road plays a strategic role in promoting the integrated development of the European non-economic trade, and is a powerful force for promoting the common development and prosperity of the world. Because the length of the silk road at sea reaches tens of thousands of kilometers, and the distance between ports along the way is long, the supply of materials on the ship is difficult, especially the supply of fresh water.
At present, the fresh water supply of offshore vessels mainly adopts the following technologies: firstly, a large supply ship from the continents is used for supplying fresh water for an offshore ship; secondly, sea fresh water storage equipment is arranged, and a large supply ship is adopted to carry fresh water from the continental land periodically to be stored in the fresh water storage equipment, so that fresh water is indirectly supplied to the sea ship; thirdly, arranging an offshore rainwater collection platform, and supplying fresh water to the offshore ship after rainwater is treated; fourthly, sea seawater desalination equipment is arranged to desalt the seawater and supply fresh water to the sea ships.
Among the four offshore fresh water supply technologies, the fourth technology has a development prospect because the fresh water production can be independently carried out. Currently, research on offshore freshwater production equipment has been partially productive. For example, patent document CN102285701B discloses a method for producing fresh water by using a solar seawater desalination apparatus installed on the sea, and the purpose of the present invention is to reduce the land occupation area by using a wide sea area. The patent document with publication number CN102935880A discloses a movable new energy offshore industry public platform, which provides power generation, heat storage and seawater desalination by using various new energy sources such as wind energy, solar energy, ocean energy and the like, wherein the production of fresh water is based on thermal seawater desalination by solar photo-thermal utilization and membrane seawater desalination by wind energy utilization, and can be used in the fields of island and open sea resource development and utilization, tourism and the like. Patent document No. CN106143825A discloses an offshore floating type water and electricity cogeneration platform, which uses low-quality steam at the outlet of a steam turbine in a trough type solar thermal power generation system as a heat source, and adopts a low-temperature multi-effect distillation method to desalt seawater, so as to provide electric energy and fresh water for remote islands. Patent publication No. CN106592691A discloses a fresh water supply station using ocean current energy, which is installed in an ocean area with abundant tidal current energy by using a caisson structure to supply fresh water to ships and islands. Patent document CN206232512U discloses an offshore fresh water preparation station, which uses solar photovoltaic reverse osmosis desalination technology to provide fresh water for sea islands, and is installed on the sea to reduce the land occupation of sea island by seawater desalination equipment.
The offshore fresh water production equipment is mainly attached to the sea island, and can produce fresh water for the sea island, and the fresh water supply of the offshore ship can be met to a certain extent. However, the depth of the sea area near the sea island is limited, and mooring at such sea area is difficult for large ships. Since most of ships travelling on sea routes are large ships, the voyage of the ships is long, the amount of fresh water carried in the voyage is limited, and the demand for the fresh water is very strong. Therefore, designing an offshore fresh water production and supply platform which can be arranged in any sea area to continuously supply fresh water for passing ships of offshore airlines is a very necessary work, particularly a very strategic work for constructing a fresh water production and supply system which is based on the construction of offshore silk roads.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the offshore fresh water production and supply system and the device which are not limited by ocean depth and ocean severe weather and can be directly driven by ocean renewable energy sources efficiently.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the offshore fresh water production and supply system directly driven by ocean renewable energy comprises a headquarters base and a plurality of offshore fresh water production platforms arranged along an offshore airline, wherein the headquarters base comprises a monitoring center and an operating center, the monitoring center is in wireless communication with the operating center, and the offshore fresh water production platforms are in wireless communication with the monitoring center.
The monitoring center comprises a remote monitoring system server, and the remote monitoring system server comprises a remote data transceiver module and a microcomputer.
The operation center comprises an electronic commerce system, wherein the electronic commerce system comprises a database server, an application program server, a Web server and an electronic commerce website; the database server is used for collecting real-time fresh water volume data information of each offshore fresh water production platform sent by the monitoring center; the application program server is used for executing the sharing service application program; the Web server is used for providing information browsing service of an e-commerce website; the electronic commerce website comprises an authentication center, a commodity center and a payment center, wherein the authentication center is used for providing member registration service, the commodity center is used for providing position information of each offshore fresh water production platform, real-time fresh water amount information, fresh water amount prediction information for hours in the future and ordering service, and the payment center is used for providing online payment service.
The offshore fresh water production platform comprises an offshore floating platform, a production system, a water supply system, a power supply system, a safety early warning system, an automatic control system, a remote monitoring system terminal and a mooring system for fixing the offshore floating platform; the power supply system is used for storing electric energy and distributing the electric energy to each electric device; the safety early warning system comprises a navigation mark lamp, a radar and radio communication equipment; the navigation mark lamp is used for emitting light at night so as to remind passing ships to prevent the ships from colliding with the offshore floating platform; the radar is used for detecting and ranging ships in a sea area near the offshore floating platform, when the distance between the ships and the offshore floating platform is smaller than a set value, the radar transmits signals to the radio communication equipment, and the radio communication equipment sends fresh water supply to the ships and maintains safe distance information with the offshore floating platform; the automatic control system is used for controlling the whole production process of the offshore fresh water production platform; the remote monitoring system terminal is used for monitoring equipment data of the offshore fresh water production platform and sending the data to the monitoring center; the water supply system comprises a water tank, a water supply pump and a water diversion ship; the water tank is connected with the water supply pump through a pipeline, and the water diversion ship is connected with the water supply pump through a flexible pipe.
The flexible pipe is internally provided with a platform water conveying pipe and a cable; the water diversion ship comprises a ship body, and an environment sensing system, a navigation system, an automatic driving control system, a propulsion system and a water adding machine which are arranged on the ship body; the environment sensing system is used for acquiring information of the drinking water carrier and the surrounding environment in the running process of the drinking water carrier and providing decision basis for safe running of the drinking water carrier; the navigation system is used for making a path selection and guiding decision-making basis according to the position information of the water diversion vessel and the water purchasing vessel or the offshore fresh water production platform; the automatic driving control system controls the propulsion system according to decision basis provided by the environment sensing system and the navigation system, so that the diversion ship safely arrives beside the water purchasing ship or returns to the side of the offshore fresh water production platform.
The automatic control system consists of a coordination control system and a basic control system; the coordination control system comprehensively controls all equipment systems on the offshore fresh water production platform to form an organic whole; the basic control system comprises a water supply control system, a seawater pretreatment control system, a wind energy supercharging device control system, a wave energy supercharging device control system, a reverse osmosis device control system, a fresh water post-treatment control system, a water supply control system, an energy recovery control system, a power supply control system and a safety early warning control system, and the basic control system receives instructions sent by the coordination control system respectively to complete the control tasks of the corresponding systems.
A marine fresh water production and supply device directly driven by marine renewable energy sources comprises a water feeding pump, a seawater pretreatment device, a wind energy supercharging device, a suspended pendulum wave energy supercharging mechanism, an oscillating water column type wave energy supercharging mechanism, a reverse osmosis device, a fresh water post-treatment device, a pressure exchanger, a booster pump, a hydraulic turbine and a generator; the wind energy supercharging device comprises a first rotary vane pump; the suspended pendulum wave energy supercharging mechanism comprises a second rotary vane pump; the oscillating water column type wave energy supercharging mechanism comprises a third rotary vane pump; the feed pump pumps seawater from the sea and sends the seawater into the seawater pretreatment device, the low-pressure seawater discharged from the seawater pretreatment device is divided into four paths, one path of seawater is connected with the first rotary vane pump through a first one-way valve, the second path of seawater is connected with the second rotary vane pump through a reversing mechanism, the third path of seawater is connected with the third rotary vane pump through a seventh one-way valve, and the fourth path of seawater is connected with a low-pressure seawater inlet of the pressure exchanger through a ninth one-way valve; a high-pressure seawater outlet of the pressure exchanger is connected with a booster pump; high-pressure seawater discharged from the first rotary vane pump, the second rotary vane pump, the third rotary vane pump and the booster pump is converged in a collecting pipe and then enters the reverse osmosis device, fresh water discharged from the reverse osmosis device is treated by a fresh water post-treatment device and then stored in a water tank, concentrated seawater discharged from the reverse osmosis device enters the hydraulic turbine after energy release of the pressure exchanger, and the concentrated seawater impacts the hydraulic turbine to rotate to drive the generator to generate electricity.
The reversing mechanism comprises a third one-way valve, a fourth one-way valve, a fifth one-way valve and a sixth one-way valve, the water inlet end of the third one-way valve is connected with the water outlet end of the seawater pretreatment device, the water outlet end of the third one-way valve is divided into two paths, one path of the water outlet end is connected with one end of the second rotary vane pump, the other path of the water outlet end is connected with the water inlet end of the sixth one-way valve, and the water outlet end of the sixth one-way valve is connected with the water inlet end of the collecting; and the water inlet end of the fourth one-way valve is connected with the water outlet end of the seawater pretreatment device, the water outlet end is divided into two paths, one path is connected with the other end of the second rotary vane pump, the other path is connected with the water inlet end of the fifth one-way valve, and the water outlet end of the fifth one-way valve is connected with the water inlet end of the collecting pipe.
The collecting pipe is connected with an energy storage device.
The suspended swing type wave energy supercharging mechanism further comprises a front water chamber, a swing device and a transmission rod which is installed on the front water chamber through a support, and rotating shafts of the swing device and the second rotary vane pump are connected with the transmission rod; the oscillating water column type wave energy supercharging mechanism further comprises a rear water chamber communicated with the front water chamber, a ventilation opening is formed in the upper portion of the rear water chamber, a bearing frame is installed in the rear water chamber, a turbine of a symmetrical wing type connected with the third rotary vane pump is installed on the bearing frame, a half partition wall is arranged between the front water chamber and the rear water chamber, the upper end of the half partition wall is connected with the front water chamber or the rear water chamber, and the lower end of the half partition wall is suspended.
The invention has the beneficial effects that:
1. the marine fresh water production platform is arranged according to the marine route, the fresh water requirement of the ship with a longer voyage can be met, and the ship does not need to store more fresh water in the sailing process, so that the fuel consumption can be saved.
2. The offshore floating platform adopts a mooring technology combining the anchor and the weight, the offshore floating platform is fixed in a certain sea area through the anchor, the gravity center of the offshore floating platform is reduced through the weight, and the wind and wave resistance of the floating platform is improved, so that the safe and stable operation of fresh water production equipment is ensured, the offshore floating platform can adapt to a large range of sea conditions, is not limited by ocean depth and severe ocean weather, can pave roads of offshore silk and can produce and supply fresh water for offshore fishery operation ships and offshore submarine resource development platforms.
3. The energy sources produced by the fresh water are all derived from ocean renewable energy sources, namely offshore wind energy and wave energy, the two ocean renewable energy sources are abundant in ocean, and the energy requirements of the operation of an offshore fresh water production platform can be met.
4. The invention utilizes offshore wind energy and wave energy to directly drive the reverse osmosis seawater desalination system to produce fresh water, and has the advantages of less required equipment, high energy efficiency and low comprehensive cost.
5. The wave energy supercharging device disclosed by the invention adopts a wave energy conversion technology of coupling the suspended pendulum type and the oscillating water column type, and has the advantage of high wave energy conversion efficiency.
6. The invention adopts the automatically-driven diversion vessel to supply fresh water to the water purchasing vessel, and the water purchasing vessel only does not need to be close to the offshore fresh water production platform, thereby avoiding the water purchasing vessel from colliding the offshore fresh water production platform.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a system configuration diagram of the present invention;
FIG. 2 is a schematic diagram of the system architecture of the present invention;
FIG. 3 is a schematic diagram of the apparatus of the present invention;
figure 4 is a cross-sectional view of a flexible pipe.
Detailed Description
Referring to fig. 1 to 4, an offshore fresh water production and supply system directly driven by ocean renewable energy comprises a headquarters base 94 and a plurality of offshore fresh water production platforms 1 arranged along an offshore route, wherein the headquarters base 94 comprises a monitoring center 95 and an operating center 99, the monitoring center 95 is in wireless communication with the operating center 99, and the offshore fresh water production platforms 1 are in wireless communication with the monitoring center 95.
The monitoring center 95 includes a remote monitoring system server 96, and the remote monitoring system server 96 includes a remote data transceiver module 97 and a microcomputer 98.
The operations center 99 includes an e-commerce system 100, and the e-commerce system 100 includes a database server 101, an application server 102, a Web server 103, and an e-commerce website 104. The database server 101 is configured to collect real-time fresh water amount data information of each offshore fresh water production platform 1 sent by the monitoring center 95; the application server 102 is configured to execute a shared service application, so that each user can use a client application at the same time; the Web server 103 is used for providing information browsing service of an e-commerce website; the e-commerce website 104 comprises an authentication center 105, a commodity center 106 and a payment center 107, wherein the authentication center 105 is used for providing member registration service, the commodity center 106 is used for providing position information, fresh water amount real-time information and fresh water amount prediction information of the marine fresh water production platforms 1, providing map service and ordering service, and the payment center 107 is used for providing payment settlement service.
The offshore fresh water production platform 1 comprises an offshore floating platform 2, a mooring system 7, a production system 13, a water supply system 58, a power supply system 70, a safety early warning system 73, an automatic control system 77 and a remote monitoring system terminal 90.
The offshore floating platform 2 comprises a floating plate 3, a water tank 5 and an equipment room 6; the floating plate is disc-shaped, a fence 4 is arranged on the periphery of the upper surface of the floating plate, and a personnel inlet is formed in the middle of the fence. The water tank 5 is cylindrical and is vertically arranged in the center of the lower end of the floating plate 3; the equipment room 6 is in a cuboid shape and is arranged in the center of the upper end of the floating plate.
The mooring system 7 is composed of a ballast body 8, mooring lines 9, anchors 10 and anchor chains 11. The ballast body 8 is a gyro body or a cylinder, is suspended below the offshore floating platform 2 through the mooring cable 9, and has the function of lowering the center of gravity of the offshore floating platform 3, so that the wind and wave resistance is improved. The anchor 10 is fixed to the sea floor and is connected to the offshore platform 2 by an anchor chain 11. The middle of the anchor chain 11 is provided with a telescopic structure (which can be a spring and the like) 12, and the telescopic structure 12 is used for performing telescopic motion along with the up-and-down rising and falling of the offshore floating platform 2 under the action of sea waves so as to prevent the anchor chain 11 from being broken by pulling.
The production system 13 includes a seawater pretreatment device 15, a marine renewable energy conversion device 16, a reverse osmosis device 48, a fresh water post-treatment device 50, and an energy recovery device 51.
The seawater pretreatment device 15 is arranged in the equipment room 6 and has the functions of sterilizing, precipitating, filtering, softening and the like on the introduced seawater, so that the water quality of the seawater meets the requirements of a reverse osmosis membrane, and the long-term safe operation of the reverse osmosis device is ensured.
The ocean renewable energy conversion device 16 converts low-pressure seawater into high-pressure seawater by utilizing ocean energy, and comprises at least one wind energy supercharging device 17 and at least one wave energy supercharging device 22, wherein the wave energy supercharging device 22 comprises a suspended pendulum wave energy supercharging mechanism 23 and an oscillating water column type wave energy supercharging mechanism 29, and the wave energy supercharging device 22 is arranged at the edge of the floating plate 3.
The reverse osmosis apparatus 48 is installed in the equipment room 6, and is composed of a plurality of reverse osmosis membrane modules 49 for producing fresh water by membrane permeation.
The fresh water post-treatment device 50 is arranged in the equipment room 6 and has the functions of disinfecting, adjusting the pH value, mineralizing and the like of fresh water, so that the quality of the fresh water meets the requirements of domestic water.
The energy recovery device 51 is arranged in the equipment room 6 and consists of a residual energy supercharging device 52 and a residual energy generating device 55; the residual energy supercharging device 52 consists of a pressure exchanger 53 and a booster pump 54; the waste energy power generation device 55 consists of a hydraulic turbine 56 and a generator 57, and the energy utilization efficiency can be improved by using the method to generate electric energy.
The water supply system 58 comprises a water tank 5, a water supply pump 59 and a water carrier 63; the water supply pump 59 is arranged in the equipment room 6, and the water tank 5 is connected with the water supply pump 59 through a pipeline; the water-conducting ship 63 is anchored beside the offshore floating platform 2, the water-conducting ship 63 and the water supply pump 59 are connected through a flexible pipe 60, and the flexible pipe 60 contains a platform water pipe 61 and a cable 62; the diversion vessel 63 includes a hull 64 and an environmental sensing system 65 (camera and various sensors), a navigation system 66 (satellite navigation), an autopilot control system 67 (satellite navigation based and various sensors), a propulsion system 68 (propeller), and a watering machine 69 (water pump) mounted on the hull 64. The environment sensing system 65 is used for acquiring information of the diversion vessel 63 itself and the surrounding environment in the running process, and providing decision basis for safe running of the diversion vessel 63. The navigation system 66 is used for making decision bases such as path selection and guidance according to the position information of the diversion vessel 63 and the water purchasing vessel 108 or the offshore fresh water production platform 1. The autopilot control system 67 controls the propulsion system 68 to bring the penser 63 safely alongside the water-purchasing vessel 108 or back alongside the offshore fresh water production platform 1, depending on the decision-making provided by the environmental awareness system 65 and the navigation system 66. The ship 108 passing by the sea route connects the water adding machine 69 with the fresh water cabin 109 of the ship through the ship water pipe 110, accesses the electronic commerce website 104 through the client 111 (onboard computer), and starts to supply fresh water after ordering and completing payment.
The power supply system 70 is disposed within a plant room and includes a battery 71 and power distribution equipment 72. The battery 71 is used for storing the electric energy generated by the residual energy generating device 55, and the distribution equipment 72 is used for distributing the electric energy to each electric device.
The safety precaution system 73 includes a beacon light 74, a radar 75, and a radio communication device 76; the beacon light 74 and the radar 75 are both disposed on top of a plant room, and the radio communication device 76 is disposed within the plant room; the beacon light 74 is used for emitting light at night so as to remind passing ships and prevent the ships from colliding with a floating platform on the sea; the radar 75 is used for detecting and measuring distance of ships in the sea area near the offshore floating platform, when the distance between the ships and the offshore floating platform is smaller than a certain set value, the radar 75 transmits signals to the radio communication device 76, and the radio communication device 76 automatically sends information to the ships to remind the ships to supply fresh water and pay attention to the safe distance between the ships and the offshore floating platform.
The automatic control system 77 is composed of a coordination control system 78 and a basic control system 79; the coordination control system 78 implements comprehensive control on all equipment systems on the offshore fresh water production platform, so that all the equipment systems form an organic whole; the basic control system 79 comprises a water supply control system 80, a seawater pretreatment control system 81, a wind energy supercharging device control system 82, a wave energy supercharging device control system 83, a reverse osmosis device control system 84, a fresh water post-treatment control system 85, a water supply control system 86, an energy recovery control system 87, a power supply control system 88 and a safety early warning control system 89, which are respectively used for receiving instructions sent by the coordination control system 78 to complete the control tasks of the corresponding systems.
The remote monitoring system terminal 90 is arranged in the equipment room and comprises a sensor 91, a data collector 92 and a field data transceiver module 93; the sensor 91 transmits the monitored data to the data collector 92, and the field data transceiver module 93 transmits the data information of the data collector 92 to the remote data transceiver module 97 of the monitoring center 95 through a wireless network (WIFI ad hoc network).
A marine fresh water production and supply device directly driven by marine renewable energy sources comprises a feed water pump 14, a seawater pretreatment device 15, a wind energy supercharging device 17, a suspended pendulum wave energy supercharging mechanism 23, an oscillating water column type wave energy supercharging mechanism 29, a reverse osmosis device 48, a pressure exchanger 53, a booster pump 54, a hydraulic turbine 56 and a generator 57; the wind energy supercharging device 17 comprises a first rotary vane pump 21; the suspended pendulum wave energy charging mechanism 23 comprises a second rotary vane pump 28; the oscillating water column type wave energy supercharging mechanism 29 comprises a third rotary vane pump 35; the feed pump 14 pumps seawater from the sea and sends the seawater into the seawater pretreatment device 15, the low-pressure seawater discharged from the seawater pretreatment device 15 is divided into four paths, one path is connected with the first rotary vane pump 21 through a first one-way valve 37, the second path is connected with the second rotary vane pump 28 through a reversing mechanism, the third path is connected with the third rotary vane pump 35 through a seventh one-way valve 43, and the fourth path is connected with a low-pressure seawater inlet of the pressure exchanger 53 through a ninth one-way valve 45; a high-pressure seawater outlet of the pressure exchanger 53 is connected with a booster pump 54; high-pressure seawater discharged from the first rotary vane pump 21, the second rotary vane pump 28, the third rotary vane pump 35 and the booster pump 54 is converged in the collecting pipe 36 and then enters the reverse osmosis device 48, fresh water discharged from the reverse osmosis device 48 is processed by the fresh water post-processing device 50 and then stored in the water tank 5, concentrated seawater discharged from the reverse osmosis device 48 enters the hydraulic turbine 56 after being released energy by the pressure exchanger 53, and the surplus energy impacts the hydraulic turbine 56 to rotate so as to drive the generator 57 to generate electricity. The water outlet end of the first rotary vane pump 21 is connected to a second check valve 38, the water outlet end of the third rotary vane pump 35 is connected to an eighth check valve 44, and the water outlet end of the booster pump 54 is connected to a tenth check valve 46.
The reversing mechanism comprises a third one-way valve 39, a fourth one-way valve 40, a fifth one-way valve 41 and a sixth one-way valve 42, the water inlet end of the third one-way valve 39 is connected with the water outlet end of the seawater pretreatment device 15, the water outlet end of the third one-way valve 39 is divided into two paths, one path is connected with one end of the second rotary vane pump 28, the other path is connected with the water inlet end of the sixth one-way valve 42, and the water outlet end of the sixth one-way valve 42 is connected with the water inlet end of the confluence pipe 36; the water inlet end of the fourth one-way valve 40 is connected with the water outlet end of the seawater pretreatment device 15, the water outlet end of the fourth one-way valve 40 is divided into two paths, one path is connected with the other end of the second rotary vane pump 28, the other path is connected with the water inlet end of the fifth one-way valve 41, and the water outlet end of the fifth one-way valve 41 is connected with the water inlet end of the collecting pipe 36.
The wind energy supercharging device 17 is of a vertical shaft type structure, is arranged at the upper end of the floating plate 3, and mainly comprises a tower 18, a wind wheel 19 and a transmission 20; the wind wheel 19 is connected with the first rotary vane pump 21 through the speed changer 20, under the action of offshore wind energy, the wind wheel 19 rotates and drives the speed changer 20 to operate, so that the first rotary vane pump 21 is driven to work, low-pressure seawater discharged from the seawater pretreatment device 15 enters the first rotary vane pump 21 through the first one-way valve 37 to be pressurized, and high-pressure seawater discharged from the first rotary vane pump 21 enters the collecting pipe through the second one-way valve 38.
The hanging pendulum type wave energy supercharging mechanism 23 further comprises a front water chamber 24, a pendulum device 25 and a transmission rod 26 which is installed on the front water chamber 24 through a support 27, and rotating shafts of the pendulum device 25 and a second rotary vane pump 28 are connected with the transmission rod 26. The front water chamber 24 is in a U-shaped groove shape, two support seats 27 are arranged, the two support seats 27 are arranged on the side wall of the front water chamber 24, two ends of a transmission rod 26 are arranged on the two support seats 27 through bearings, the transmission rod 26 drives a rotating shaft of the second rotary vane pump 28 to rotate along with the rotation of the oscillator 25, so that the second rotary vane pump 28 is driven to work, under the action of waves, the oscillator 25 oscillates in a reciprocating manner, when the oscillator 25 oscillates to the right, low-pressure seawater discharged from the seawater pretreatment device 15 enters the left chamber of the second rotary vane pump 28 through the third check valve 39, high-pressure seawater in the right chamber of the second rotary vane pump 28 enters the collecting pipe through the fifth check valve 41, when the oscillator 25 is oscillated leftward, the low-pressure seawater discharged from the seawater pretreatment device 15 passes through the fourth check valve 40 to enter the right chamber of the second rotary vane pump 28, and the high-pressure seawater in the left chamber of the second rotary vane pump 28 passes through the sixth check valve 42 to enter the collecting pipe.
The oscillating water column type wave energy supercharging mechanism 29 further comprises a rear water chamber 30 communicated with the front water chamber 24, a vent 32 is arranged on the upper portion of the rear water chamber 30, the vent 32 is located on the upper side wall of the rear water chamber 30, the vent 32 is located above sea level, and the vent 32 is used for enabling air above an oscillating water column to keep normal pressure. A bearing frame 33 is installed in the rear water chamber 30, a turbine 34 of a symmetrical wing type connected with the third rotary vane pump 35 is installed on the bearing frame 33, the turbine 34 is installed in the middle of the rear water chamber 30, a half partition wall 31 is arranged between the front water chamber 24 and the rear water chamber 30, the upper end of the half partition wall 31 is connected with the front water chamber 24 or the rear water chamber 30, and the lower end of the half partition wall is suspended, so that a water flow channel is formed between the front water chamber 24 and the rear water chamber 30. The half partition wall 31 has two functions, one is to generate a reaction force to the incident waves to push the oscillator to swing back and forth, and the other is to make the waves form an oscillating water column in the rear water chamber. Under the action of waves, the water column in the rear water chamber 30 rises and falls in a reciprocating manner, the water column drives the turbine 34 to rotate, the turbine 34 is a symmetrical wing-shaped turbine, the turbine rotates in the same direction no matter the water column rises or falls, the turbine 34 drives the third rotary vane pump 35 to work, low-pressure seawater discharged from the seawater pretreatment device 15 enters the third rotary vane pump 35 through the seventh check valve 43 to be pressurized, and high-pressure seawater discharged from the third rotary vane pump 35 enters the collecting pipe through the eighth check valve 44.
The collecting pipe is connected with an energy accumulator 47, and the structural form of the energy accumulator 47 mainly includes a bladder type, a piston type, a diaphragm type, a weight type, a spring type and the like, and can be specifically referred to patent document CN 102022251A. If the water pressure is high, the energy storage device 47 will absorb the excess energy, and if the water pressure is low, the energy storage device 47 will release the stored energy, so that the water pressure entering the reverse osmosis device 48 is stable.
Claims (3)
1. A marine fresh water production and supply device directly driven by marine renewable energy is characterized by comprising a water feeding pump (14), a seawater pretreatment device (15), a wind energy supercharging device (17), a suspended pendulum wave energy supercharging mechanism (23), an oscillating water column type wave energy supercharging mechanism (29), a reverse osmosis device (48), a fresh water post-treatment device (50), a pressure exchanger (53), a booster pump (54), a hydraulic turbine (56) and a generator (57); the wind energy supercharging device (17) comprises a first rotary vane pump (21); the suspended pendulum wave energy booster mechanism (23) comprises a second rotary vane pump (28); the oscillating water column type wave energy supercharging mechanism (29) comprises a third rotary vane pump (35); the feed water pump (14) pumps seawater from the sea and sends the seawater into the seawater pretreatment device (15), and four paths of low-pressure seawater discharged from the seawater pretreatment device (15) are provided, wherein the first path is connected with the first rotary vane pump (21) through a first one-way valve (37), the second path is connected with the second rotary vane pump (28) through a reversing mechanism, the third path is connected with the third rotary vane pump (35) through a seventh one-way valve (43), and the fourth path is connected with a low-pressure seawater inlet of the pressure exchanger (53) through a ninth one-way valve (45); a high-pressure seawater outlet of the pressure exchanger (53) is connected with a booster pump (54); high-pressure seawater discharged from the first rotary vane pump (21), the second rotary vane pump (28), the third rotary vane pump (35) and the booster pump (54) is converged in a collecting pipe (36) and then enters the reverse osmosis device (48), fresh water discharged from the reverse osmosis device (48) is processed by a fresh water post-processing device (50) and then stored in a water tank (5), concentrated seawater discharged from the reverse osmosis device (48) enters the hydraulic turbine (56) after energy release of the pressure exchanger (53), and the hydraulic turbine (56) is impacted to rotate to drive the generator (57) to generate electricity;
the suspended pendulum wave energy supercharging mechanism (23) further comprises a front water chamber (24), a pendulum device (25) and a transmission rod (26) which is arranged on the front water chamber (24) through a support (27), and rotating shafts of the pendulum device (25) and a second rotary vane pump (28) are connected with the transmission rod (26); oscillating water column type wave energy booster mechanism (29) still include with back hydroecium (30) that preceding hydroecium (24) are linked together, the upper portion of back hydroecium (30) is provided with vent (32), install bearing frame (33) in back hydroecium (30), install on bearing frame (33) with turbine (34) of the symmetry wing section that third rotary vane pump (35) are connected, and be provided with half partition wall (31) between preceding hydroecium (24) and back hydroecium (30), the upper end of half partition wall (31) with preceding hydroecium (24) or back hydroecium (30) are connected, and the lower extreme is unsettled.
2. The marine fresh water production and supply device directly driven by marine renewable energy according to claim 1, wherein the reversing mechanism comprises a third one-way valve (39), a fourth one-way valve (40), a fifth one-way valve (41) and a sixth one-way valve (42), the water inlet end of the third one-way valve (39) is connected with the water outlet end of the seawater pretreatment device (15), the water outlet end is divided into two paths, one path is connected with one end of the second rotary vane pump (28), the other path is connected with the water inlet end of the sixth one-way valve (42), and the water outlet end of the sixth one-way valve (42) is connected with the water inlet end of the collecting pipe (36); the water inlet end of the fourth one-way valve (40) is connected with the water outlet end of the seawater pretreatment device (15), the water outlet end is divided into two paths, one path is connected with the other end of the second rotary vane pump (28), the other path is connected with the water inlet end of the fifth one-way valve (41), and the water outlet end of the fifth one-way valve (41) is connected with the water inlet end of the collecting pipe (36).
3. Marine fresh water production and supply installation with direct drive from marine renewable energy according to claim 1, characterized in that the manifold is connected with an energy storage (47).
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| JP7257087B1 (en) * | 2021-09-07 | 2023-04-13 | 加森 紀良 | Seawater desalination ship using wind power |
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