CN111425169A - Clean development device and method for deep sea natural gas hydrate - Google Patents

Clean development device and method for deep sea natural gas hydrate Download PDF

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Publication number
CN111425169A
CN111425169A CN201911372049.9A CN201911372049A CN111425169A CN 111425169 A CN111425169 A CN 111425169A CN 201911372049 A CN201911372049 A CN 201911372049A CN 111425169 A CN111425169 A CN 111425169A
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China
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driven
shaft
propeller
driving
gear
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CN111425169B (en
Inventor
郭福贵
刘永旺
李泽洋
刘庶
赵哲
陈伟
徐佳丽
许炜
杨宇
王婷睿
胡祖康
薛安媞
李玉清
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China University of Petroleum East China
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China University of Petroleum East China
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0099—Equipment or details not covered by groups E21B15/00 - E21B40/00 specially adapted for drilling for or production of natural hydrate or clathrate gas reservoirs; Drilling through or monitoring of formations containing gas hydrates or clathrates
    • 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
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/295—Gasification of minerals, e.g. for producing mixtures of combustible gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/4453—Floating structures carrying electric power plants for converting solar energy into electric energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/4466—Floating structures carrying electric power plants for converting water energy into electric energy, e.g. from tidal flows, waves or currents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Abstract

The invention relates to the field of natural gas hydrate exploitation, in particular to a deep sea natural gas hydrate cleaning and developing device which comprises a floating platform, an electric power storage device, a liquid storage tank, a windmill generator, a solar heating device and the like. The device can utilize natural clean energy to heat liquid, and provide power to inject the heated liquid into the seabed underground, so as to smoothly produce hydrate and fill the space after the hydrate is produced.

Description

Clean development device and method for deep sea natural gas hydrate
Technical Field
The invention relates to the field of clean energy natural gas hydrate exploitation, in particular to a device and a method for clean development of deep sea natural gas hydrate.
Background
Natural gas hydrates, which are also called "combustible ice" because they look like ice and burn on fire, are ice-like crystalline substances formed from natural gas and water under high pressure and low temperature conditions. Hydrates are widely distributed in nature in permanently frozen earth on continents, sloping terrain in islands, elevations at the edges of active and passive continents, polar continental shelves, and the deepwater environment of the ocean and some inland lakes. According to rough statistics, the distribution range of the seabed hydrates is about 4000 ten thousand square kilometers, the seabed hydrates account for 10 percent of the total area of the sea, the reserves of the seabed combustible ice can be used by human for 1000 years, and the utilization prospect is very wide.
Offshore mining of hydrates is far from the continent, and the difficulty in replenishing electricity to mining equipment from a long distance is high, and the consumption of required electricity is a huge capital cost. At present, no device for exploiting the hydrate by utilizing the potential energy of the ocean is available at home and abroad, and the common energy of the ocean is ocean current energy and wave energy or offshore solar energy and wind energy, so that the design of a clean exploitation device for the deep sea natural gas hydrate is very necessary for reasonably and efficiently exploiting the hydrate.
Disclosure of Invention
The invention aims to solve the technical problems of the exploitation of the hydrate and provides a device and a method for clean exploitation of deep sea natural gas hydrate.
In order to solve the technical problems, the invention relates to the field of clean energy natural gas hydrate exploitation, and particularly relates to a device and a method for cleaning and developing deep sea natural gas hydrate The device comprises a horizontal driving shaft A, a driving bevel gear A, a driven vertical shaft A, a generator, a driving bevel gear B, a bearing A with a seat, a driven horizontal shaft A, a driven bevel gear and a submarine pipeline, wherein liquid is heated by utilizing natural clean energy, power is provided to inject the heated liquid into the seabed underground, and hydrate is smoothly extracted and a space after the hydrate is extracted is filled.
As a further optimization of the technical scheme, a floating platform fixing column is fixed on the sea floor, a submarine pipeline is installed on the sea floor, a floating platform is installed on the floating platform fixing column and floats on the sea level, an electric storage device, a liquid storage tank, a windmill generator, a solar heating device, a liquid accelerating pump and an electric heating device are installed on the floating platform, one end of an output pipeline is connected with the liquid accelerating pump, the other end of the output pipeline is connected with an annular space, the liquid accelerating pump comprises a propeller C and a pump shaft, a power device of the accelerating pump comprises a driven straight gear, a driving straight gear, a belt seat bearing, a fixed support, a driven horizontal shaft, a propeller, a horizontal driving shaft, a driving helical gear A, a driven vertical shaft, a driving helical gear B and a driven helical gear B, the pump shaft is connected with the driven straight gear, the driving straight, and is engaged with a driven straight gear, a driven horizontal shaft is installed on a bearing with a seat, the bearing with the seat is installed on a fixed support, the fixed support is fixed inside a floating platform, a driven helical gear B is installed on the driven horizontal shaft, a driving helical gear B is installed on a driven vertical shaft and is engaged with the driven helical gear B, a driven helical gear A is installed on the driven vertical shaft, a driving helical gear A is installed on a horizontal driving shaft and is engaged with the driven helical gear A, a propeller is installed on the horizontal driving shaft, the ocean current power generation device comprises a propeller A, a horizontal driving shaft A, a driving helical gear A, a driven vertical shaft A, a power generator, a driving helical gear B, a bearing with a seat A, a driven horizontal shaft A and a driven helical gear, the power generator is fixed in the floating platform, a driven helical gear is, the wave energy power generation device comprises a propeller B, a water flowing hole, a mounting hole and a small generator, wherein the mounting hole is arranged on a floating platform fixing column.
As the further optimization of the technical scheme, the deep sea natural gas hydrate cleaning and developing device is characterized in that the diameter of the driving straight gear is 2 times that of the driven straight gear.
As further optimization of the technical scheme, the deep sea natural gas hydrate cleaning and developing device has the advantages that the output pipeline has the functions of heat preservation and water prevention.
As further optimization of the technical scheme, the deep sea natural gas hydrate cleaning and developing device is characterized in that the diameter of the water flowing hole is larger than the outer diameter of the small generator.
As the further optimization of the technical scheme, the deep sea natural gas hydrate cleaning and developing device is characterized in that the floating platform is of an internal hollow structure.
As the further optimization of the technical scheme, the invention relates to a deep sea natural gas hydrate cleaning and developing device, wherein a plurality of floating platform fixing columns are arranged.
As further optimization of the technical scheme, the method for cleaning and developing the deep sea natural gas hydrate comprises the following steps:
the method comprises the following steps: when wave energy exists, water passes through the water flowing hole, so that the propeller B rotates, and the small generator is driven to rotate to generate electricity; when ocean current exists, the propeller A drives the generator to rotate through transmission to generate electricity, and electric energy generated by the windmill generator, the wave energy generating device and the ocean current generating device is transmitted to the electricity storage device to be stored;
step two: the electric storage device supplies power to the electric heating device, the liquid storage tank respectively supplies fluid to the solar heating device and the electric heating device, and the fluid is heated to a certain temperature and then conveyed into the liquid accelerating pump to accelerate;
step three: when ocean current passes through the liquid accelerating pump, the propeller drives the propeller C to rotate through the transmission mechanism, the propeller C pushes the heated fluid to flow forwards quickly, and the fluid enters the annular space through the output pipeline after obtaining initial speed;
step four: the hydrate is heated and gasified after being heated, the gas hydrate is transported to a seabed oil and gas well, the injected fluid is condensed into solid after releasing heat, the space where the hydrate is extracted is filled, the situation that the ground stress state is changed to cause the pressure of the bottom layer to be lost is prevented, and the extracted hydrate is transported out through a seabed pipeline.
The device and the method for clean development of the deep sea natural gas hydrate have the beneficial effects that:
the method disclosed by the invention utilizes natural clean energy to heat the liquid, provides power to inject the heated liquid into the seabed underground, smoothly extracts the hydrate and fills the space after the hydrate is extracted, and is a method for extracting the hydrate, which has the advantages of high safety coefficient, high extraction efficiency, energy conservation, environmental protection and reliability.
Drawings
FIG. 1: the invention relates to a structural schematic diagram of a deep sea natural gas hydrate cleaning and developing device;
FIG. 2: a schematic equipment position diagram of a deep sea natural gas hydrate clean development device;
FIG. 3: FIG. 1 is a partially enlarged view of the drawing;
FIG. 4: FIG. 1-B is a partially enlarged view;
FIG. 5: FIG. 1-C is a cross-sectional view;
FIG. 6: FIG. 1-D is a cross-sectional view;
FIG. 7: FIG. 2-E is a cross-sectional view;
FIG. 8: schematic diagram of a small generator.
In FIGS. 1-8: a floating platform 1; an electricity storage device 2; a liquid storage tank 3; a windmill generator 4; a solar heating device 5; a liquid acceleration pump 6; propeller C61; a pump shaft 62; an output duct 7; an electric heating device 8; a floating platform fixing column 9; a wave energy power generation device 10; a propeller B101; a water flow hole 102; a mounting hole 103; a small generator 104; a sea floor 11; a subsea oil and gas well 12; an annular space 13; hydrate 14; an acceleration pump power plant 15; a driven spur gear 151; a spur gear drive 152; a pedestal bearing 153; a fixed support 154; a driven horizontal shaft 155; a propeller 156; a horizontal drive shaft 157; a driving bevel gear plate 158; a driven helical gear case 159; a driven vertical shaft 1510; a driving bevel gear B1511; a driven bevel gear B1512; an ocean current power plant 16; a propeller A161; horizontal drive shaft A162; a driving bevel gear A163; a driven helical gear a 164; a driven vertical axis a 165; a generator 166; a driving bevel gear B167; a seated bearing a 168; a driven horizontal axis a 169; a driven bevel gear 1610; a subsea pipeline 17.
Detailed Description
Referring to fig. 1, 2, 3, 4, 5, 6, 7 and 8, the present embodiment is described below, which is a method for cleaning and developing a deep-sea natural gas hydrate, including a floating platform 1, a power storage device 2, a liquid storage tank 3, a windmill generator 4, a solar heating device 5, a liquid acceleration pump 6, a propeller C61, a pump shaft 62, an output pipeline 7, an electric heating device 8, a floating platform fixing column 9, a wave power generation device 10, a propeller B101, a water flowing hole 102, a mounting hole 103, a small generator 104, a seabed 11, a seabed oil and gas well 12, an annular space 13, a hydrate 14, an acceleration pump power device 15, a driven spur gear 151, a driving spur gear 152, a seated bearing 153, a fixed seat 154, a driven horizontal shaft 155, a propeller 156, a horizontal driving shaft 157, a driving bevel gear 158, a driven bevel gear 159, a driven vertical shaft 1510, a driven straight gear 151, a driven horizontal shaft, The device comprises a driving bevel gear B1511, a driven bevel gear B1512, an ocean current power generation device 16, a propeller A161, a horizontal driving shaft A162, a driving bevel gear A163, a driven bevel gear A164, a driven vertical shaft A165, a generator 166, a driving bevel gear B167, a seated bearing A168, a driven horizontal shaft A169, a driven bevel gear 1610 and a submarine pipeline 17.
The hydrate exploitation device is placed in seawater, a floating platform fixing column 9 is fixed on the seabed 11, a seabed pipeline 17 is installed on the seabed 11, an oil layer exists below the seabed 11, a floating platform 1 is installed on the floating platform fixing column 9, the floating platform 1 floats on the sea level, an electricity storage device 2, a liquid storage tank 3, a windmill generator 4, a solar heating device 5, a liquid acceleration pump 6 and an electric heating device 8 are installed on the floating platform 1, one end of an output pipeline 7 is connected with the liquid acceleration pump 6, the other end of the output pipeline 7 is connected with an annular space 13, the liquid acceleration pump 6 comprises a propeller C61 and a pump shaft 62, the propeller C61 is installed on the pump shaft 62, an acceleration pump power device 15 comprises a driven straight gear 151, a driving straight gear 152, a bearing with a seat 153, a fixed support 154, a driven horizontal shaft 155, a propeller 156, a horizontal driving shaft 157, A driving helical gear A158, a driven helical gear A159, a driven vertical shaft 1510, a driving helical gear B1511 and a driven helical gear B1512, wherein a pump shaft 62 is connected with the driven straight gear 151, the driving straight gear 152 is mounted on a driven horizontal shaft 155 and is engaged with the driven straight gear 151, the driven horizontal shaft 155 is mounted on a seated bearing 153, the seated bearing 153 is mounted on a fixed support 154, the fixed support 154 is fixed inside the floating platform 1, the driven helical gear B1512 is mounted on the driven horizontal shaft 155, the driving helical gear B1511 is mounted on the driven vertical shaft 1510 and is engaged with the driven helical gear B1512, the driven helical gear A159 is mounted on the driven vertical shaft 1510, the driving helical gear A158 is mounted on the horizontal driving shaft 157 and is engaged with the driven helical gear A159, the propeller 156 is mounted on the horizontal driving shaft 157, and the ocean current power generation device 16 comprises, A horizontal driving shaft A162, a driving bevel gear A163, a driven bevel gear A164, a driven vertical shaft A165, a generator 166, a driving bevel gear B167, a seated bearing A168, a driven horizontal shaft A169 and a driven bevel gear 1610, wherein the generator 166 is fixed in the floating platform 1, the input end of the generator 166 is connected with the driven horizontal shaft A169, the driven horizontal shaft A169 is installed on the seated bearing A168, the seated bearing A168 is fixed in the floating platform 1, the driven bevel gear 1610 is installed on the driven horizontal shaft A169, the driving bevel gear B167 is installed on the driven vertical shaft A165 and is meshed with the driven bevel gear 1610, the driven bevel gear A164 is installed on the driven vertical shaft A165, the driving bevel gear A163 is installed on the horizontal driving shaft A162 and is meshed with the driven bevel gear A164, the propeller A161 is installed on the horizontal driving shaft A162, and the wave power generation device 10 comprises a propeller B101, a water, the mounting hole 103 is arranged on the floating platform fixing column 9, the small generator 104 is arranged in the middle of the water flowing hole 102, and the propeller B101 is arranged on an extending shaft of the small generator 104.
When in use, when wave energy exists, water passes through the water flowing hole 102 to rotate the propeller B101, so as to drive the small generator 104 to rotate to generate electricity, when ocean current exists, the propeller A161 drives the generator 166 to rotate through transmission to generate electricity, the electric energy generated by the windmill generator 4, the wave energy generating device 10 and the ocean current generating device 16 is transmitted to the electric storage device 2 to be stored, the electric storage device 2 supplies electricity to the electric heating device 8, the liquid storage tank 3 respectively provides fluid for the solar heating device 5 and the electric heating device 8, the fluid is heated to a certain temperature and then transmitted to the liquid accelerating pump 6 to be accelerated, the liquid accelerating pump 6 accelerates according to the principle that when the ocean current passes through, the propeller 156 drives the propeller C61 to rotate through the transmission mechanism, the propeller C61 pushes the heated fluid to flow forward rapidly, the fluid enters the annular space 13 through the output pipeline 7 after obtaining initial speed to heat the hydrate 14, the hydrate 14 is gasified after being heated, the gas hydrate 14 is transported to the seabed oil-gas well 12, so that the purpose of extracting the hydrate 14 is achieved, the injected fluid is condensed into solid after releasing heat, the space of the extracted hydrate 14 is filled, the situation that the ground stress state is changed to cause the pressure of a bottom layer to be lost is prevented, the extracted hydrate is transported out through a seabed pipeline 17, and the extraction of the hydrate is completed.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims (7)

1. The device is characterized by comprising a floating platform (1), an electric storage device (2), a liquid storage tank (3), a windmill generator (4), a solar heating device (5), a liquid accelerating pump (6), a propeller C (61), a pump shaft (62), an output pipeline (7), an electric heating device (8), a floating platform fixing column (9), a wave power generation device (10), a propeller B (101), a water flowing hole (102), a mounting hole (103), a small generator (104), a seabed (11), a seabed oil and gas well (12), an annular space (13), hydrates (14), an accelerating pump power device (15), a driven straight gear (151), a driving straight gear (152), a bearing with a seat (153), a fixed support (154), a driven horizontal shaft (155), a propeller (156), a horizontal driving shaft (157), The first driven helical gear (158), the first driven helical gear (159), the driven vertical shaft (1510), the second driven helical gear (1511), the second driven helical gear (1512), the ocean current power generation device (16), the propeller A (161), the horizontal driving shaft A (162), the driving helical gear A (163), the driven helical gear A (164), the driven vertical shaft A (165), the generator (166), the driving helical gear B (167), the seated bearing A (168), the driven horizontal shaft A (169), the driven helical gear (1610) and the submarine pipeline (17), and the method is characterized in that: a floating platform fixing column (9) is fixed on a seabed (11), a seabed pipeline (17) is installed on the seabed (11), a floating platform (1) is installed on the floating platform fixing column (9), the floating platform (1) floats on the sea level, an electricity storage device (2), a liquid storage tank (3), a windmill generator (4), a solar heating device (5), a liquid accelerating pump (6) and an electric heating device (8) are installed on the floating platform (1), one end of an output pipeline (7) is connected with the liquid accelerating pump (6), the other end of the output pipeline (7) is connected with an annular space (13), the liquid accelerating pump (6) comprises a propeller C (61) and a pump shaft (62), and an accelerating pump power device (15) comprises a straight gear (151), a driving straight gear (152), a bearing with a seat (153), a fixed support (154), A driven horizontal shaft (155), a propeller (156), a horizontal driving shaft (157), a driving bevel gear A (158), a driven bevel gear A (159), a driven vertical shaft (1510), a driving bevel gear B (1511) and a driven bevel gear B (1512), wherein a pump shaft (62) is connected with a driven spur gear (151), the driving spur gear (152) is arranged on the driven horizontal shaft (155) and is meshed with the driven spur gear (151), the driven horizontal shaft (155) is arranged on a bearing with a seat (153), the bearing with a seat (153) is arranged on a fixed support (154), the fixed support (154) is fixed inside the floating platform (1), the driven bevel gear B (1512) is arranged on the driven horizontal shaft (155), the driving bevel gear B (1511) is arranged on the driven vertical shaft (1510) and is meshed with the driven bevel gear B (1512), the driven bevel gear A (159) is arranged on the driven vertical shaft (1510), the driving helical gear A (158) is installed on a horizontal driving shaft (157) and meshed with the driven helical gear A (159), the propeller (156) is installed on the horizontal driving shaft (157), the ocean current power generation device (16) comprises a propeller A (161), a horizontal driving shaft A (162), a driving helical gear A (163), a driven helical gear A (164), a driven vertical shaft A (165), a power generator (166), a driving helical gear B (167), a seated bearing A (168), a driven horizontal shaft A (169) and a driven helical gear (1610), the power generator (166) is fixed in the floating platform (1), the driven helical gear (1610) is installed on the driven horizontal shaft A (169), the driving helical gear (B167) is installed on the driven vertical shaft A (165) and meshed with the driven helical gear (1610), the driven helical gear A (164) is installed on the driven vertical shaft A (165), the driving bevel gear A (163) is mounted on the horizontal driving shaft A (162) and meshed with the driven bevel gear A (164), the propeller A (161) is mounted on the horizontal driving shaft A (162), the wave energy power generation device (10) comprises a propeller B (101), a water flowing hole (102), a mounting hole (103) and a small generator (104), and the mounting hole (103) is mounted on the floating platform fixing column (9).
2. The deep sea natural gas hydrate cleaning and developing device according to claim 1, characterized in that: the diameter of the driving spur gear (152) is 2 times of that of the driven spur gear (151).
3. The deep sea natural gas hydrate cleaning and developing device according to claim 1, characterized in that: the output pipeline (7) has the functions of heat preservation and water prevention.
4. The deep sea natural gas hydrate cleaning and developing device according to claim 1, characterized in that: the diameter of the water flowing hole (102) is larger than the outer diameter of the small generator (104).
5. The deep sea natural gas hydrate cleaning and developing device according to claim 1, characterized in that: the floating platform (1) is of an internal hollow structure.
6. The deep sea natural gas hydrate cleaning and developing device according to claim 1, characterized in that: the floating platform fixing columns (9) are provided with a plurality of columns.
7. A clean development method of deep sea natural gas hydrate is characterized by comprising the following steps:
the method comprises the following steps: when wave energy exists, water passes through the water flowing hole (102) to enable the propeller B (101) to rotate, so that the small generator (104) is driven to rotate to generate electricity; when ocean current exists, the propeller A (161) drives the generator (166) to rotate through transmission to generate electricity, and electric energy generated by the windmill generator (4), the wave energy generating set (10) and the ocean current generating set (16) is transmitted to the electricity storage device (2) to be stored;
step two: the electric storage device (2) supplies power to the electric heating device (8), and the liquid storage tank (3) respectively supplies fluid to the solar heating device (5) and the electric heating device (8), and the fluid is heated to a certain temperature and then conveyed into the liquid accelerating pump (6) to accelerate;
step three: when ocean current passes through the liquid accelerating pump (6), the propeller (156) drives the propeller C (61) to rotate through the transmission mechanism, the propeller C (61) pushes the heated fluid to flow forward rapidly, and the fluid enters the annular space (13) through the output pipeline (7) after obtaining initial speed;
step four: the hydrate (14) is heated, the hydrate (14) is gasified after being heated, the gas hydrate (14) is transported to the seabed oil and gas well (12), the injected fluid is condensed into solid after releasing heat, the space after the hydrate (14) is extracted is filled, the situation that the ground stress state is changed to cause the bottom layer pressure to be lacked is prevented, and the extracted hydrate is transported out through a seabed pipeline (17).
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CN102704894A (en) * 2012-05-30 2012-10-03 上海交通大学 In-situ submarine natural gas hydrate exploiting device and method thereof
CN106321027A (en) * 2016-10-21 2017-01-11 大连理工大学 Efficient and low-consumption method for exploiting natural gas hydrate of sea bed
CN106593372A (en) * 2016-12-07 2017-04-26 大连理工大学 Solar-technology-based natural gas hydrate exploitation and sea water desalination method and apparatus

Patent Citations (4)

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DE102011106905A1 (en) * 2011-03-11 2012-09-13 Jochen Prasser Method for conveying methane from methane hydrate deposits, involves limiting current action area of deposit from surrounding by covering device, and releasing gas from gas hydrate by heating limited area
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