CN111456901A - Comprehensive power generation hydrogen production and storage system based on offshore waste oil-gas platform - Google Patents

Comprehensive power generation hydrogen production and storage system based on offshore waste oil-gas platform Download PDF

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Publication number
CN111456901A
CN111456901A CN202010490916.5A CN202010490916A CN111456901A CN 111456901 A CN111456901 A CN 111456901A CN 202010490916 A CN202010490916 A CN 202010490916A CN 111456901 A CN111456901 A CN 111456901A
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China
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power generation
hydrogen
hydrogen production
comprehensive power
waste oil
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Inventor
孙庆强
单小雪
袁雪振
江海
刘海韵
覃勇
任绍洋
许波
邹有鑫
张艺
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Jiangsu Ocean University
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Jiangsu Ocean University
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Priority to CN202010490916.5A priority Critical patent/CN111456901A/en
Publication of CN111456901A publication Critical patent/CN111456901A/en
Priority to LU500725A priority patent/LU500725B1/en
Priority to PCT/CN2021/085761 priority patent/WO2021244131A1/en
Pending legal-status Critical Current

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    • 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"
    • F03B13/18—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" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1845—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" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
    • F03B13/1855—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" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem where the connection between wom and conversion system takes tension and compression
    • F03B13/186—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" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem where the connection between wom and conversion system takes tension and compression the connection being of the rack-and-pinion type
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/50—Processes
    • C25B1/55—Photoelectrolysis
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • 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"
    • F03B13/18—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" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1845—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" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
    • 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
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/19—Combinations of wind motors with apparatus storing energy storing chemical energy, e.g. using electrolysis
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
    • H02S10/12—Hybrid wind-PV energy systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • 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
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful 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
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
    • 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
    • F05B2220/61—Application for hydrogen and/or oxygen production
    • 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
    • F05B2220/705—Application in combination with the other apparatus being a wind turbine
    • 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
    • F05B2220/708—Photoelectric means, i.e. photovoltaic or solar cells
    • 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
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/911—Mounting on supporting structures or systems on a stationary structure already existing for a prior purpose
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    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/95—Mounting on supporting structures or systems offshore
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    • 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
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05B2260/40312—Ratchet wheels
    • 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
    • F05B2260/00—Function
    • F05B2260/42—Storage of energy
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
    • 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
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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
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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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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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
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    • Y02E60/30—Hydrogen technology
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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
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    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Abstract

The invention discloses a comprehensive power generation hydrogen production and storage system based on an offshore waste oil-gas platform, which comprises a comprehensive power generation part, a hydrogen production part and a hydrogen storage part, wherein the comprehensive power generation part, the hydrogen production part and the hydrogen storage part are established depending on the offshore waste oil-gas platform; the comprehensive power generation part utilizes various ocean energies to carry out comprehensive power generation; the hydrogen production part is a water electrolysis hydrogen production device, a water source in an electrolytic bath of the water electrolysis hydrogen production device is seawater, and electric energy is provided by the comprehensive power generation part; the hydrogen storage part comprises a hydrogen collection device and a rare earth alloy hydrogen storage device, and hydrogen produced by the water electrolysis hydrogen production device is collected from normal temperature and normal pressure and then stored in the solid rare earth alloy device in a bound state. The invention fully utilizes various abundant energy sources on the sea according to local conditions, and utilizes the generated electric energy to electrolyze seawater to prepare hydrogen and store hydrogen, thereby having important guiding significance for reducing production cost and improving benefits.

Description

Comprehensive power generation hydrogen production and storage system based on offshore waste oil-gas platform
Technical Field
The invention belongs to the technical field of comprehensive power generation and energy storage of new energy, and particularly relates to a device for comprehensive power generation, hydrogen production and hydrogen storage.
Background
The ocean energy has huge content, and mainly comprises offshore wind energy, offshore light energy, sea wave energy, ocean current energy, ocean temperature difference energy, ocean salt difference energy and the like.
The current situation of ocean energy utilization is as follows: besides offshore wave energy power generation technology, power generation technologies of various energy sources such as offshore wind energy, offshore light energy, offshore wave energy, ocean current energy, ocean temperature difference energy, ocean salt difference energy and the like are developed successfully, but the practical application is less due to higher equipment cost, low energy conversion efficiency and the like.
In fact, it is not very difficult to generate electricity by using these energy sources. However, the abundant energy is not utilized at present, and the main reason for the difficulty in development is that the cost of power generation by single deep sea ocean energy is too high, and the difficulty of platform carrier and power transmission is two other technical bottlenecks which limit the development of the power generation.
On the other hand, as the oil and gas industry shrinks, oil and gas companies around the world are continually seeking alternatives to address one of the most costly problems in the industry, namely the disposal of the abandoned oil platform. At present, most offshore abandoned oil and gas platforms still adopt a completely-dismantled treatment mode, but the mode is huge in cost and wastes resources, so that many oil and gas companies begin to research the mode of reusing the offshore abandoned oil and gas platforms, but most of the offshore abandoned oil and gas platforms are still in an assumed stage and lack of technical feasibility.
If can be based on marine abandonment oil gas platform and establish ocean energy utilization system, can realize the reuse of marine abandonment oil gas platform undoubtedly, also can solve the platform-free carrier that exists in the current ocean energy utilization simultaneously, throw into a lot of problems such as big earlier stage simultaneously, promote the effective utilization of ocean energy.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a comprehensive power generation hydrogen production and storage system based on an offshore waste oil-gas platform, aiming at overcoming the defects of the prior art, and achieving the purpose of developing and utilizing various offshore energy sources by combining offshore energy comprehensive power generation and open-sea hydrogen production and storage.
The technical scheme is as follows: the comprehensive power generation hydrogen production and storage system based on the offshore waste oil-gas platform comprises a comprehensive power generation part, a hydrogen production part and a hydrogen storage part, wherein the comprehensive power generation part, the hydrogen production part and the hydrogen storage part are established depending on the offshore waste oil-gas platform;
the comprehensive power generation part generates power by using various ocean energy sources and transmits the power to the hydrogen production part and the hydrogen storage part;
the hydrogen production part is a water electrolysis hydrogen production device, a water source in an electrolytic bath of the water electrolysis hydrogen production device is seawater, and electric energy is provided by the comprehensive power generation part;
the hydrogen storage part comprises a hydrogen collecting device and a rare earth alloy hydrogen storage device, the hydrogen collecting device is respectively communicated with the water electrolysis hydrogen production device and the rare earth alloy hydrogen storage device, the power of the hydrogen collecting device is provided by the comprehensive power generation part, and the hydrogen produced by the water electrolysis hydrogen production device is collected at normal temperature and normal pressure and then stored in the rare earth alloy hydrogen storage device in a bound state.
According to a further optimized technical scheme, the comprehensive power generation part comprises one or more power generation devices of a wind power generation device, a light energy power generation device and a wave energy power generation device, and a storage battery for storing electric energy generated by the power generation devices;
the storage battery is respectively connected with the water electrolysis hydrogen production device and the hydrogen collecting device and supplies power to the water electrolysis hydrogen production device and the hydrogen collecting device.
Preferably, the wind power generation device is a wind power generation device based on the venturi effect.
Preferably, the light energy generating device is a photovoltaic power generating array and a control circuit part thereof.
Preferably, the wave energy power generation device comprises a floater, a rack, two transmission gears, two ratchet wheel transmission assemblies and a generator;
the floater is driven by sea waves to do lifting motion; the rack is fixedly connected with the floater and synchronously ascends and descends along with the floater; two transmission gears are respectively meshed with two sides of the rack, one end of each ratchet transmission assembly is respectively meshed with one transmission gear, and the other end of each ratchet transmission assembly is connected with an input shaft of the generator;
the ascending or descending of the rack drives the two transmission gears to rotate together, one of the transmission gears drives the corresponding ratchet transmission component to rotate, the ratchet transmission component drives the input shaft of the generator to rotate in the same direction, and the other transmission gear idles.
Preferably, the hydrogen storage device is composed of a rare earth alloy.
Preferably, the hydrogen storage device is a scandium alloy compound doped with 2-8% by weight of aluminum.
Preferably, the rare earth alloy hydrogen storage device is doped with 6% by weight of aluminum.
Has the advantages that: (1) the offshore waste oil-gas platform is fully utilized, various abundant energy sources at the sea are fully utilized according to local conditions aiming at the problem of difficult deep sea power transmission, the power generation electric energy is utilized locally to electrolyze seawater to prepare hydrogen and store hydrogen, the power transmission problem is changed into the hydrogen storage and transportation problem, the energy transmission difficulty and cost are reduced, the problem of difficult deep sea power transmission is indirectly solved, meanwhile, hydrogen is used as clean energy, pollution cannot be generated in the preparation process and the use process, the energy-saving and emission-reducing effects are very obvious, and the offshore waste oil-gas platform has important guiding significance for reducing the production cost and improving the benefit;
(2) according to the offshore wind power generation system, an offshore wind power generator device, an offshore photovoltaic module and a wave energy power generation device are built by taking an offshore waste oil-gas platform as a carrier, offshore energy is developed in a three-dimensional manner, the energy collection efficiency is improved, all power generation systems are organically combined, and the matching problem in the existing offshore multi-energy comprehensive power generation technology is solved;
(3) the offshore multi-energy power generation device is comprehensively matched, and conversion and storage of electric energy and hydrogen energy are realized on the basis, so that a set of complete offshore energy development-energy storage system is provided, the system is built on the basis of the existing offshore waste oil-gas platform, small and medium-sized Venturi wind power generators are built around the platform for wind power generation, a photovoltaic module is erected above the platform for photovoltaic power generation, a wave energy power generation device is installed at the bottom of the platform, and electrolytic seawater is arranged in the center of the platform to realize hydrogen production, so that the deep sea energy which is difficult to develop in the past is efficiently converted and utilized;
(4) the comprehensive power generation and conversion system is built by means of the deep sea waste oil-gas platform, so that the cost of offshore platform construction is greatly reduced, the safety coefficient is also ensured, and the comprehensive power generation and conversion system has the advantage of extremely low cost; the system has the advantages of high power generation efficiency, strong safety performance, strong operation stability, convenient operation and strong feasibility. Through estimation, the cost of electricity per degree of the system is 0.7-0.8 yuan, which is close to the cost of land wind power. The system is simple to maintain, low in operation cost and short in investment recovery period, and the cost can be recovered in two to three years;
(5) the hydrogen storage device is a rare earth alloy compound, the hydrogen storage alloy has high hydrogen storage capacity under low pressure (1 × 106Pa), the hydrogen storage capacity can reach more than 100kg/m3, meanwhile, aiming at the problem that the alloy can be powdered after frequent hydrogen absorption and desorption, aluminum with different concentrations is doped in the hydrogen storage alloy, the service life of the hydrogen storage alloy is prolonged, and tests show that the hydrogen storage rare earth alloy doped with 6 weight percent of aluminum has the optimum concentration, the working life of the hydrogen storage alloy is prolonged to more than 2 times, and other working parameters are not deteriorated.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic diagram of the energy conversion of the present invention;
1-wind power generation device, 2-light energy power generation device, 3-storage battery, 4-water electrolysis hydrogen production device and 5-hydrogen storage device.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example (b): a comprehensive power generation hydrogen production and storage system based on a marine waste oil and gas platform comprises a comprehensive power generation part, a hydrogen production part and a hydrogen storage part which are attached to the marine waste oil and gas platform.
1. Integrated power generation section
By building the wind power generation device 1, the light energy power generation device 2 and the wave energy power generation device 3 above the deep sea waste oil-gas platform, comprehensive and three-dimensional offshore energy comprehensive power generation is realized, the productivity per unit area is improved, and the investment cost is saved. And the comprehensive power generation device has high safety coefficient, good stability, convenient maintenance and the like. Various offshore energy sources are efficiently collected, and the power generation cost is reduced. Meanwhile, seawater is electrolyzed on site to produce hydrogen and store hydrogen, so that the problem of difficult deep sea electric energy transmission is solved. The system structure is schematically shown in figure 1.
The comprehensive power generation part comprises a wind power generation device 1, a light energy power generation device 2, a wave energy power generation device and a storage battery 3 for storing electric energy generated by the power generation device. The storage battery 3 is respectively connected with the water electrolysis hydrogen production device 4 and the hydrogen collecting device and supplies power to the water electrolysis hydrogen production device 4 and the hydrogen collecting device.
1.1 wind power generation plant
The wind power generation device 1 is a venturi wind power generation device. At present, the Venturi wind power generation has practical application, can be used for breeze power generation from 3.2km/h to 90km/h, can be utilized, has high power generation efficiency and strong safety performance, has stronger operation stability, is low in cost and is convenient to install and maintain. However, the actual application at the present stage is a large-scale wind driven generator, and the system adopts a small and medium-scale wind driven generator with the same scale, so that the application range is very wide.
Compared with the traditional fan, the wind energy utilization rate is higher, the efficiency can be improved to more than 6000 hours per year, the electricity generation is more than 1000 ten thousand degrees per year, and the cost of 1 degree electricity is about 2 gross money. Meanwhile, the closed turbine motor set also avoids the risk of accidentally injuring birds and maintenance personnel, the noise and the vibration are smaller, and the blades of the turbine motor set are 84% smaller than those of the traditional fan blades.
1.2 light energy generating device
The light energy power generation device 2 is a photovoltaic power generation array. The photovoltaic power generation assembly is erected on the surface of the waste oil-gas platform, solar energy is utilized to generate power, the solar energy is not shielded from other structures, the unit area capacity is improved according to local conditions, and the theme of vigorously developing and utilizing ocean energy in the current society is met.
1.3 wave energy power generation device
The wave energy power generation device realizes the transmission of wave energy from reciprocating motion to unidirectional rotation motion through a transmission mechanism to drive a generator to generate power.
The device comprises a floater, a rack, two transmission gears, two ratchet wheel transmission assemblies and a generator; the floater is driven by sea waves to do lifting motion; the rack is fixedly connected with the floater and synchronously ascends and descends along with the floater; two transmission gears are respectively meshed with two sides of the rack, one end of each ratchet transmission assembly is respectively meshed with one transmission gear, and the other end of each ratchet transmission assembly is connected with an input shaft of the generator; the ascending or descending of the rack drives the two transmission gears to rotate together, one of the transmission gears drives the corresponding ratchet transmission component to rotate, the ratchet transmission component drives the input shaft of the generator to rotate in the same direction, and the other transmission gear idles.
2. Hydrogen production section and hydrogen storage section
2.1 Hydrogen production section
Offshore power generation is unrealistic to transmit power by submarine cables due to the fact that land users are far away, an independent 'self-generating and self-selling' type power generation system must be established, which is the second problem to be overcome in ocean energy development, and if the problem is solved, infinite ocean energy can be vigorously developed. The scheme of the system is that redundant or all electric energy is utilized to electrolyze water to produce hydrogen on a reformed oil-gas platform to store energy, and products are high-energy products such as hydrogen, oxygen and the like. Therefore, comprehensive power generation can be carried out in any sea area without worry, and the ocean energy can be utilized only by solving the problem.
The hydrogen production part is a water electrolysis hydrogen production device 4, a water source in an electrolytic bath of the water electrolysis hydrogen production device 4 is seawater, and electric energy is provided by the comprehensive power generation part. The power generated by the comprehensive power generation device is effectively utilized, the seawater is electrolyzed to produce hydrogen and store hydrogen, and a set of complete comprehensive power generation-hydrogen production and storage system is provided. Various offshore energy sources are efficiently collected, and energy conversion is realized by hydrogen production and storage, and the energy conversion is shown in figure 2.
2.2 Hydrogen storage fraction
The hydrogen storage part comprises a hydrogen collecting device and a plurality of hydrogen storage devices 5, the hydrogen collecting device is respectively communicated with the water electrolysis hydrogen production device 4 and the hydrogen storage devices 5, the power of the hydrogen collecting device is provided by the comprehensive power generation part, and the hydrogen produced by the water electrolysis hydrogen production device 4 is stored in the rare earth alloy hydrogen storage devices 5 in a bound state after being collected by the hydrogen collecting device.
At present, the hydrogen storage methods mainly comprise: compressing hydrogen storage, liquefying hydrogen storage, and rare earth alloy hydrogen storage. Pressurized compressed hydrogen storage is one of the most common hydrogen storage technologies, and typically employs a heavy cylinder as a container. Because of the low hydrogen density, the hydrogen storage efficiency is very low and the energy density is low, so the method is not suitable for large-scale application. As the liquefaction of the hydrogen consumes large cooling energy, the liquefaction of 1kg of hydrogen consumes 4 kW.h to 10 kW.h, thus increasing the cost of hydrogen storage and hydrogen consumption. The liquid hydrogen storage container must be a special container for ultra-low temperature. Therefore, the storage cost is expensive and safeThe technology is also relatively complicated, rare earth metals are under relatively low pressure (1 × 10)6Pa) has high hydrogen storage capacity up to 100kg/m3The above. However, the hydrogen storage metal is gradually powdered after frequent hydrogen absorption and desorption.
Alloying of the hydrogen storage metal can hinder the accelerated release of helium from the solid phase hydride, i.e., can increase the critical concentration. By changing the release kinetics of helium-3 in the solid metal hydride, the service life of the device using alloyed scandium hydride can be significantly increased compared to a device using pure scandium hydride.
In the embodiment, the service life of the hydrogen storage alloy can be prolonged by doping aluminum with different concentrations in the hydrogen storage alloy, and through tests, the service life of the alloy can be prolonged to 2 times by doping the rare earth scandium alloy hydrogen storage device 5 with 6% by weight of aluminum. Fully meets the use requirements of the system.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Changes may be made in form and detail without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (8)

1. A comprehensive power generation hydrogen production and storage system based on an offshore waste oil-gas platform is characterized by comprising a comprehensive power generation part, a hydrogen production part and a hydrogen storage part which are established depending on the offshore waste oil-gas platform;
the comprehensive power generation part utilizes various ocean energies to carry out comprehensive power generation and transmits the power to the hydrogen production and storage part;
the hydrogen production part is a water electrolysis hydrogen production device, a water source in an electrolytic bath of the water electrolysis hydrogen production device is seawater, and electric energy is provided by the comprehensive power generation part;
the hydrogen storage part comprises a hydrogen collecting device and a rare earth alloy hydrogen storage device, the hydrogen collecting device is respectively communicated with the water electrolysis hydrogen production device and the rare earth alloy hydrogen storage device, the power of the hydrogen collecting device is provided by the comprehensive power generation part, and the hydrogen produced by the water electrolysis hydrogen production device is collected at normal temperature and normal pressure and then stored in the rare earth alloy hydrogen storage device in a bound state.
2. The offshore waste oil and gas platform-based comprehensive power generation hydrogen production and storage system as claimed in claim 1, wherein the comprehensive power generation part comprises a plurality of power generation devices including a wind power generation device, a solar power generation device and a wave power generation device, and a storage battery for storing electric energy generated by the power generation devices;
the storage battery is respectively connected with the water electrolysis hydrogen production device and the hydrogen collecting device and supplies power to the water electrolysis hydrogen production device and the hydrogen collecting device.
3. The comprehensive power generation hydrogen production and storage system based on the offshore waste oil-gas platform as claimed in claim 2, wherein the wind power generation device is a wind power generation device based on venturi effect.
4. The comprehensive power generation hydrogen production and storage system based on the offshore waste oil and gas platform as claimed in claim 2, wherein the solar power generation device is a photovoltaic power generation array and a control circuit part thereof.
5. The comprehensive power generation hydrogen production and storage system based on the offshore waste oil and gas platform is characterized in that the wave power generation device comprises a floater, a rack, two transmission gears, two ratchet transmission assemblies and a power generator;
the floater is driven by sea waves to do lifting motion; the rack is fixedly connected with the floater and synchronously ascends and descends along with the floater; two transmission gears are respectively meshed with two sides of the rack, one end of each ratchet transmission assembly is respectively meshed with one transmission gear, and the other end of each ratchet transmission assembly is connected with an input shaft of the generator;
the ascending or descending of the rack drives the two transmission gears to rotate together, one of the transmission gears drives the corresponding ratchet transmission component to rotate, the ratchet transmission component drives the input shaft of the generator to rotate in the same direction, and the other transmission gear idles.
6. The comprehensive power generation hydrogen production and storage system based on the offshore waste oil and gas platform is characterized in that the hydrogen storage device is made of rare earth alloy.
7. The comprehensive power generation, hydrogen production and storage system based on the offshore waste oil and gas platform is characterized in that the hydrogen storage device is a scandium alloy compound doped with 2-8% of aluminum by weight.
8. The comprehensive power generation hydrogen production and storage system based on the offshore waste oil and gas platform is characterized in that the rare earth alloy hydrogen storage device is doped with 6 weight percent of aluminum.
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