CN215109274U - Offshore wind energy storage and transportation system for pneumatic power generation - Google Patents
Offshore wind energy storage and transportation system for pneumatic power generation Download PDFInfo
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- CN215109274U CN215109274U CN202120201519.1U CN202120201519U CN215109274U CN 215109274 U CN215109274 U CN 215109274U CN 202120201519 U CN202120201519 U CN 202120201519U CN 215109274 U CN215109274 U CN 215109274U
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model discloses a marine wind energy storage conveying system for pneumatic power generation, including a plurality of marine aerogenerator, gas storage system and pneumatic generator, marine wind energy turns into the system that compressed air potential energy was saved and was transported for a long distance, turn into the kinetic energy of fan blade shaft drive air compressor work with marine wind energy, according to gas transmission rate, select reasonable water depth to arrange flexible gasbag, store the constant voltage compressed air with water pressure looks coerce in the flexible gasbag, invariable water pressure is with the pneumatic generator of capacity compressed air pressure above the sea level, can both accurate control thereby obtain stable power output from transmission rate and air feed time; the offshore wind energy is utilized to the maximum extent, the cost of offshore power generation and electric energy transmission is saved, and the use of underwater cables is replaced. The underwater flexible capsule stores energy on line, solves the problem of wind power generation electric energy storage, stably and continuously supplies compressed gas, ensures stable electric power output and is easy to be connected to the grid.
Description
Technical Field
The utility model belongs to the technical field of wind power generation wind energy transmission technique and specifically relates to a marine wind energy storage conveying system for pneumatic power generation.
Background
Wind power generation converts kinetic energy of wind into mechanical kinetic energy, and then converts the mechanical kinetic energy into electric kinetic energy. The wind power generation set is mainly divided into three parts of a wind wheel, a generator system and an iron tower, wherein the wind power generation system consists of a wind power generator, a charger and a digital inverter, and the generator is used for transmitting constant rotating speed obtained by the wind wheel to a power generation mechanism to uniformly operate through increasing the rotating speed so as to convert mechanical energy into electric energy.
In the offshore wind power generation, all parts in a cabin move coordinately, a generator in the cabin starts to generate current after reaching the rotating speed, and the current is sent to a control cabinet below a tower through a thick cable. The output voltage of the fan needs to be collected to the offshore booster station through a 35KV current collecting wire, then passes through the offshore booster station and is connected to the onshore centralized control center through a 220KV submarine cable. This means that the further away from the shore the deep sea project, the higher the cost of the delivery process and the different delivery methods also affect the profitability of the project. And the cost of the cable used in the conveying process is high, and the cost of the whole project is greatly increased if the conveying distance is long.
In the process of wind power generation, the wind power is large or small, the wind power generation is completely limited by the size of the wind power, the generated power is unstable, and the continuous power supply at the same frequency is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that it is not enough to prior art, for offshore wind power generation provides a saving cost, will last the wind energy of collecting store the back in the sea water earlier, export the land with certain speed again, turn into the offshore wind energy storage conveying system who is used for pneumatic power generation of electric energy at last.
The technical problem to be solved by the utility model is realized by the following technical scheme, the utility model relates to an offshore wind energy storage and transportation system for pneumatic power generation, which comprises a plurality of offshore wind power generators, a gas storage system and a pneumatic generator, wherein the gas storage system is arranged below the sea level, and the pneumatic generator is arranged on the sea level; the gas storage system is positioned below the sea level, so that the space of the sea bottom is reasonably utilized, and the gas storage system is positioned under a constant continuous seawater pressure, so that the energy of the seawater is utilized to the maximum extent. Each offshore wind driven generator blade shaft is connected with the air compressor, the blade shaft is driven to rotate through wind energy and is converted into kinetic energy of the air compressor, electric energy is saved, continuous wind energy is directly utilized, and the conversion step between time and energy is saved. The wind power of each sea area and the size of a wind blade of the installed offshore wind driven generator determine the power of a wind blade shaft of the offshore wind driven generator for driving an air compressor; the size of the air compressor cylinder determines the amount of air output and the pressure range of the compressed air. Each air compressor air outlet pipeline is connected with an air outlet main pipeline in parallel and then is connected with the air storage system, the air storage system is connected with the pneumatic generator through an air conveying pipeline, the air storage system is composed of a plurality of flexible bag bodies, an air purification device and an air inlet one-way valve are sequentially arranged on the air outlet main pipeline in the output direction of the air compressor, and an air outlet one-way valve is arranged on the air conveying pipeline; when one or more work of all air compressor of establishing ties produced compressed air, the compressed air passed through purifier and purifies the back and store flexible utricule group, guarantees the clean cleanness of flexible gasbag group storage environment, need not regularly to clear up flexible utricule group. Storing clean compressed air in the flexible bag body group for later use; the compressed gas is ensured to be supplied in a saturated manner at a constant speed when the pneumatic generator works. The air inlet one-way valve and the air outlet one-way valve ensure the one-way flow of the compressed air, and are convenient to store and use.
The wind blade shaft of the offshore wind driven generator drives the air compressor to work, and when the air pressure in an air cylinder of the air compressor reaches the same water pressure as the water level of the air storage system, compressed air is purified by the air purification device and then is input into the air storage system through the air outlet main pipeline. The internal and external pressures of the air storage system are the same, and when compressed air enters, the air storage system is not stressed, and compressed air does not need to be input by means of an external system. The pressure of the compressed air stored in the flexible bag body group of the air storage system is the same as the water pressure of the water level of the flexible bag body group, when power generation is needed, the air outlet one-way valve is opened, under the action of the water pressure, the compressed air in the flexible bag body group is output at a constant speed through the air conveying pipeline, and the compressed air drives the pneumatic generator on the sea level to generate power. When the air outlet one-way valve is opened, pressure does not exist at one end of the pneumatic generator, and compressed air is continuously transmitted to the pneumatic generator continuously through the simultaneous action of seawater pressure and self pressure.
The technical problem to be solved by the present invention can be further solved by the following technical solution, wherein the flexible bag unit comprises a plurality of flexible bag units connected in parallel, each flexible bag unit is formed by connecting a plurality of flexible bags in series, and the plurality of flexible bags are arranged in order, so as to facilitate management and ensure sufficient storage space; the number of the flexible air bags can be determined according to the displacement of the air compressor and the pressure of compressed air, and the flexible air bags can be arranged infinitely under the permission of a seabed environment; each flexible bladder is arranged at a depth of 20m-1000m below sea level. The flexible bag body storage space greatly utilizes the seabed space, and meanwhile, the continuous output pressure is provided when the compressed gas is output by means of the water pressure of seawater.
The flexible bladder employs any of the flexible bladder storage devices disclosed in the prior art for storing gas suitable for use with the present system.
The technical problem to be solved by the present invention can be further solved by the following technical solution, wherein the flexible bag bodies are all arranged on the same horizontal plane, so as to ensure that the water pressure on the flexible bag bodies is the same, and when compressed air is input, the flexible bag bodies are in an uncompressed state at any time; the flexible bag body is provided with a compressed gas inlet and a compressed gas outlet which are respectively connected with the gas inlet pipeline and the gas transmission pipeline through a tee joint. The sealing device is provided with a compressed gas inlet and a compressed gas outlet, so that the sealing performance of the flexible bag body and an external pipeline is ensured when the flexible bag body is communicated.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, flexible utricule is equipped with the bag body, is equipped with the counter weight seat under the bag body, and the size of counter weight seat is greater than bag body diameter, and is fixed through the cable between bag body and the counter weight seat. The weight of the counterweight seat is large, the counterweight seat is fixed at a preset position, and the capsule body is guaranteed to be fixed at the preset position through the stay cable, so that the capsule body can not deviate from the original position because of the light weight of the capsule body.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, bag body lower extreme is connected with the counter weight seat through a cable.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, the bag body can also be through the cable connection counter weight seat of bilateral symmetry installation.
The technical problem to be solved by the utility model can be further realized by the following technical proposal, the flexible bag body is provided with a cover cylinder, the bottom of the cover cylinder is provided with a seawater circulation hole, seawater freely enters and exits the cover cylinder through the seawater circulation hole, so that the flexible bag body is in the seawater environment and the water pressure at the position; the cover cylinder is internally provided with a bag body, the upper end of the bag body is fixedly connected with the upper end of the cover cylinder, and the upper end of the cover cylinder is provided with an opening communicated with a compressed gas inlet and a compressed gas outlet on the bag body. The flexible bag body limits the position and the volume through the cover cylinder; meanwhile, the cover cylinder supports and fixes the capsule body.
The technical problem to be solved by the utility model can be further realized by the following technical scheme, the capsule body is spherical or corrugated. The bag body is convenient to expand along with the compressed gas and contract along with the compressed air output.
The seawater wind energy storage and conveying system selects a shallow sea area, arranges a gas storage system at a depth of 20-1000 m below the sea level, and the gas storage systems are arranged on the same horizontal plane; the gas storage system is composed of a plurality of flexible bag bodies, each flexible bag body group comprises a plurality of flexible bag body units which are connected in parallel, each flexible bag body unit is composed of a plurality of flexible bag bodies which are connected in series, each flexible bag body is provided with a bag body, after the installation depth and the installation mode are determined, the counterweight seats or the cover cylinders are arranged on a preset horizontal plane, all the counterweight seats or the cover cylinders are ensured to be in the same horizontal plane, and the lower end of the bag body is connected with the counterweight seats through a guy cable or guy cables symmetrically installed on two sides; or the capsule body is arranged in the cover cylinder, and the upper end of the capsule body is fixedly connected with the upper end of the cover cylinder. The bag body is respectively connected to an air compressor cylinder through a main air outlet pipeline and a parallel air outlet pipeline; when the offshore wind driven generator drives the fan blade shaft to rotate under the action of offshore wind energy, the fan blade shaft drives the air compressor to work, and when air is continuously sucked and compressed by the air compressor cylinder and the pressure of the compressed air reaches the same water pressure as the water level of the air storage system, the compressed air is input from the air outlet main pipeline after being purified by the air purification device and enters the bag body for storage through the compressed air inlet and outlet; the air outlet one-way valve is in a closed state in the whole process, when the pneumatic generator above the sea level needs to work for power generation, the air outlet one-way valve is opened, under the action of water pressure, compressed air in the flexible bag body group is output at a constant speed through the air conveying pipeline, and the compressed air drives the pneumatic generator on the sea level to generate power.
The utility model has the advantages that: the system converts offshore wind energy into compressed air potential energy for storage and long-distance transportation, converts the offshore wind energy into kinetic energy for driving an air compressor to work by a fan blade shaft, selects a reasonable water depth to arrange a flexible air bag according to the gas transmission rate, stores constant-pressure compressed air with the same pressure as the water pressure in the flexible air bag, and accurately controls the sufficient compressed air to a pneumatic generator above the sea level by the constant water pressure so as to obtain stable power output from the transmission rate and the gas supply time; the offshore wind energy is utilized to the maximum extent, the cost of offshore power generation and electric energy transmission is saved, and the use of underwater cables is replaced. The underwater flexible capsule stores energy on line, solves the problem of wind power generation electric energy storage, stably and continuously supplies compressed gas, ensures stable electric power output and is easy to be connected to the grid.
Drawings
FIG. 1 is an overall schematic view of an offshore wind energy storage and transportation system for pneumatic power generation;
FIG. 2 is a schematic illustration of an installation configuration of an offshore wind energy storage and transportation system for pneumatic power generation;
FIG. 3 is a schematic diagram of one configuration of a flexible bladder of an offshore wind energy storage and transfer system for use in pneumatic power generation;
FIG. 4 is a schematic view of another configuration of a flexible bladder of an offshore wind energy storage and transfer system for pneumatic power generation;
FIG. 5 is a schematic diagram of a spherical flexible bladder of an offshore wind energy storage and transportation system for pneumatic power generation;
FIG. 6 is a schematic diagram of one configuration of a corrugated flexible bladder of an offshore wind energy storage and transfer system for use in pneumatic power generation.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached drawings 1-2, the utility model provides a technical scheme: an offshore wind energy storage and conveying system for pneumatic power generation comprises a plurality of offshore wind power generators 4, a gas storage system 8 and a pneumatic generator 1, wherein the gas storage system 8 is arranged below the sea level, and the pneumatic generator 11 is arranged on the sea level. The wind blade shaft 5 of each offshore wind driven generator is connected with the air compressor 6, offshore wind energy drives the wind blade shaft 5 of each offshore wind driven generator to rotate, the wind blade shaft 5 drives the corresponding air compressor 6 to work to generate compressed gas, the gas outlet pipeline 3 of each air compressor 6 is connected with the gas storage system 8 after being connected to the gas outlet main pipeline 7 in parallel, and the compressed gas is stored in the gas storage system 8 through the gas outlet main pipeline 7. The gas storage system 8 is connected with the pneumatic generator 11 through the gas transmission pipeline 10, when the pneumatic generator 11 needs to generate electricity, compressed gas in the gas storage system 8 is continuously input into the pneumatic generator 11 through the gas transmission pipeline 10, and the pneumatic generator 11 starts to generate electricity. An air purification device 2 and an air inlet one-way valve 1 are sequentially arranged on the air outlet main pipeline 7 in the output direction of the air compressor 6, and compressed air is purified by the air purification device 2 and then is unidirectionally input into an air storage system 8; the gas transmission pipeline 10 is provided with a gas outlet one-way valve 9, when power generation is needed, the gas outlet one-way valve 9 is opened, and compressed gas is unidirectionally input into the air compressor 6.
The gas storage system 8 is composed of a flexible bag body group, the flexible bag body group comprises 4 flexible bag body units which are arranged in parallel, each flexible bag body unit is composed of 5 flexible bag bodies 8-1 which are connected in series, and the storage volume of each flexible bag body 8-1 is 500 m; and c, performing full-length harvest on the gas storage system 8 by 10000m, wherein each flexible capsule 8-1 is arranged at the depth of 100m below the sea level. The pressure of the water depth of the flexible bag body 8-1 is 1MPa, and the pressure of the compressed air stored in the flexible bag body 8-1 is 1 MPa. The flexible bag body 8-1 is provided with a compressed gas inlet and outlet 8-6, and the compressed gas inlet and outlet 8-6 are respectively connected with the air inlet pipeline 1 and the air delivery pipeline 10 through a tee joint. Compressed air in the air inlet pipeline 1 enters the flexible bag body 8-1 through the compressed air inlet and outlet 8-6, 1MPa of compressed air stored in the flexible bag body 8-1 is input into the pneumatic generator 11 through the compressed air inlet and outlet 8-6, the pneumatic generator 11 starts to generate electricity, and according to an energy formula: w = P V ln (P/Pa) wherein: p is the inlet pressure, which is the bladder gas pressure; pa is the outlet pressure and V is the volume, which results in that, ideally, the pneumatic power generator 11 can perform 1.2 degrees electrical conversion using 1m compressed air and the estimated 45% transmission efficiency is about 0.6 degrees electrical.
The storage volume of each flexible capsule 8-1 can be up to 1000 m; the flexible utricule unit establishes ties 10 flexible utricule 8-1, and 10 flexible utricule units connect up in parallel and become a flexible gasbag group, reach total storage volume for 10 ten thousand meters heavy traffic, and every flexible utricule 8-1 all sets up the degree of depth 200m below the sea level deepest. The pressure of the water depth of the flexible bag body 8-1 is 2MPa, and the pressure of the compressed air stored in the flexible bag body 8-1 is 2 MPa. Compressed air of 2MPa stored in the flexible bag body 8-1 is input into the pneumatic generator 11 through the compressed gas inlet and outlet 8-6, the pneumatic generator 11 starts to generate electricity, and the pneumatic generator 11 can generate electricity of 13.2 ten thousand degrees by utilizing compressed air obtained through 10 ten thousand m year cultivation.
The wind blade shaft 5 of the offshore wind driven generator drives the air compressor 6 to work, when the air pressure in the air cylinder of the air compressor 6 reaches the same water pressure as the water level of the air storage system 8, compressed air is purified by the air purification device 2 and then is input into the air storage system 8 through the air outlet main pipeline 7, and the pressure of the compressed air stored in the flexible bag body group of the air storage system 8 is the same as the water pressure as the water level of the flexible bag body group. When power generation is needed, the air outlet one-way valve 9 is opened, under the action of water pressure, compressed air in the flexible bag body group is output at a constant speed through the air outlet one-way valve 9 on the air conveying pipeline 10, and the compressed air drives the pneumatic generator 11 on the sea level to generate power.
As shown in attached figures 3 and 4, the flexible bag body 8-1 is provided with a bag body 8-1-1, a counterweight seat 8-3 is arranged under the bag body 8-1-1, the size of the counterweight seat 8-3 is larger than the diameter of the bag body 8-1-1, when the storage volume of the bag body 8-1-1 is 1000m for bearing, the counterweight seat 8-3 is fixed at a preset underwater depth of 200m, and the bag body 8-1-1 and the counterweight seat 8-3 are fixed through a guy cable 8-2. Ocean current movement affects the stability of the bladder body 8-1-1; the lower end of the bag body 8-1-1 is connected with the counterweight seat 8-3 through a pull rope 8-2. The bag body 8-1-1 can also be connected with a counterweight seat 8-3 through inhaul cables 8-2 symmetrically arranged on two sides. When compressed air is input into the capsule body 8-1-1, the volume of the capsule body 8-1-1 is continuously increased until the capsule body 8-1-1 is increased to a free volume, when the compressed air is output to the pneumatic generator 11 on the sea level, the air outlet one-way valve 9 is opened, the pressure on one side of the pneumatic generator 11 is smaller than the seawater pressure of the horizontal plane where the capsule body 8-1-1 is located, the compressed air is extruded out of the capsule body 8-1-1 through 2MPa seawater pressure, the volume of the capsule body 8-1-1 is continuously reduced, the pneumatic generator 11 starts to generate electricity, and the pneumatic generator 11 can generate 13.2 ten thousand degrees of electricity by utilizing 10 ten thousand meters of compressed air. And the capsule body 8-1-1 is to be refilled with compressed air.
Compared with the structure that the bag body 8-1-1 is fixed with the counterweight seat 8-3 through the inhaul cable 8-2, the structure of the flexible bag body 8-1 is further optimized as follows:
as shown in attached figures 5 and 6, the flexible bag body 8-1 is provided with a cover cylinder 8-4, the cover cylinder 8-4 is fixed at a preset water depth, the bottom of the cover cylinder 8-4 is provided with a seawater circulating hole 8-5, and seawater freely flows into or out of the cover cylinder 8-4; the cover cylinder 8-4 is internally provided with a capsule body 8-1-1, and the capsule body 8-1-1 is spherical or corrugated. When the volume of the cover cylinder 8-4 is 1000m in full-length plantation, the capsule body 8-1-1 cannot swing and shake due to the influence of ocean current movement, and the constant volume is guaranteed; the upper end of the bag body 8-1-1 is fixedly connected with the upper end of the cover cylinder 8-4, and the upper end of the cover cylinder 8-4 is provided with an opening communicated with a compressed gas inlet and outlet 8-6 on the bag body 8-1-1. After compressed air is input into the capsule body 8-1-1, the volume of the capsule body 8-1-1 is continuously increased until the capsule body 8-1-1 is filled in the space in the cover cylinder 8-4, and the volume of the compressed air in the capsule body 8-1-1 reaches 1000m for carrying out cultivation; when the compressed air is output to the pneumatic generator 11 on the sea level, the air outlet one-way valve 9 is opened, the pressure on one side of the pneumatic generator 11 is smaller than the seawater pressure of the horizontal plane where the capsule body 8-1-1 is located, the compressed air is extruded out of the capsule body 8-1-1 through the seawater pressure of 2MPa, the volume of the capsule body 8-1-1 is continuously reduced, the pneumatic generator 11 starts to generate electricity, and the pneumatic generator 11 can generate 13.2 ten thousand degrees of electricity by utilizing 10 ten thousand meters of compressed air. And the capsule body 8-1-1 is to be refilled with compressed air.
The system presets the pressure of compressed air generated by the air compressor, keeps consistent with the pressure of the water depth where the flexible bag is located, the bag body does not bear any pressure and only plays a role in storage, the design and manufacturing cost of the bag body is correspondingly reduced, the overall cost is reduced for the operation of the whole system, the carbon is lower, and the conversion from natural energy to kinetic energy and electric energy is completed more efficiently.
Claims (8)
1. An offshore wind energy storage and transportation system for pneumatic power generation, characterized by: comprises a plurality of offshore wind driven generators (4), a gas storage system (8) and a pneumatic generator (11), the gas storage system (8) is arranged below the sea level, the pneumatic generator (11) is arranged on the sea level, each offshore wind driven generator blade shaft (5) is connected with an air compressor (6), an air outlet pipeline (3) of each air compressor (6) is connected in parallel with an air outlet main pipeline (7) and then is connected with an air storage system (8), the gas storage system (8) is connected with a pneumatic generator (11) through a gas transmission pipeline (10), the air storage system (8) is composed of a plurality of flexible bag bodies, the air outlet main pipeline (7) is sequentially provided with an air purification device (2) and an air inlet one-way valve (1) in the output direction of an air compressor, and the air delivery pipeline (10) is provided with an air outlet one-way valve (9);
the offshore wind driven generator is characterized in that a fan blade shaft (5) of the offshore wind driven generator drives an air compressor (6) to work, when air pressure in an air cylinder of the air compressor (6) reaches the same water pressure as the water level of an air storage system (8), compressed air is purified through an air purification device (2) and then is input into the air storage system (8) through an air outlet main pipeline (7), the pressure of the compressed air stored in a flexible bag body group of the air storage system (8) is the same as the water pressure of the water level of the flexible bag body group, when power generation is needed, an air outlet one-way valve (9) is opened, the compressed air in the flexible bag body group is output at a constant speed through an air conveying pipeline (10) under the action of the water pressure, and the compressed air drives a pneumatic generator (11) on the sea level to generate power.
2. An offshore wind energy storage and transfer system for pneumatic power generation according to claim 1, characterised in that: the flexible capsule group comprises a plurality of flexible capsule units which are arranged in parallel, each flexible capsule unit is formed by connecting a plurality of flexible capsules (8-1) in series, and each flexible capsule (8-1) is arranged at the depth of 20m-1000m below the sea level.
3. An offshore wind energy storage and transfer system for pneumatic power generation according to claim 2, wherein: the flexible bag bodies (8-1) are all arranged on the same horizontal plane, compressed gas inlets and outlets (8-6) are arranged on the flexible bag bodies (8-1), and the compressed gas inlets and outlets (8-6) are respectively connected with the gas outlet main pipeline (7) and the gas conveying pipeline (10) through a tee joint.
4. An offshore wind energy storage and transfer system for pneumatic power generation according to claim 2, wherein: the flexible bag body (8-1) is provided with a bag body (8-1-1), a counterweight seat (8-3) is arranged under the bag body (8-1-1), the size of the counterweight seat (8-3) is larger than the diameter of the bag body (8-1-1), and the bag body (8-1-1) and the counterweight seat (8-3) are fixed through a guy cable (8-2).
5. An offshore wind energy storage and transfer system for pneumatic power generation according to claim 4, wherein: the lower end of the bag body (8-1-1) is connected with the counterweight seat (8-3) through a pull rope (8-2).
6. An offshore wind energy storage and transfer system for pneumatic power generation according to claim 4, wherein: the bag body (8-1-1) can also be connected with a counterweight seat (8-3) through inhaul cables (8-2) symmetrically arranged on two sides.
7. An offshore wind energy storage and transfer system for pneumatic power generation according to claim 2, wherein: the flexible bag body group is provided with a cover cylinder (8-4), the bottom of the cover cylinder (8-4) is provided with a seawater circulating hole (8-5), the cover cylinder (8-4) is internally provided with a bag body (8-1-1), the upper end of the bag body (8-1-1) is fixedly connected with the upper end of the cover cylinder (8-4), and the upper end of the cover cylinder (8-4) is provided with an opening communicated with a compressed gas inlet and outlet (8-6) on the bag body (8-1-1).
8. An offshore wind energy storage and transfer system for pneumatic power generation according to claim 7, wherein: the capsule body (8-1-1) is spherical or corrugated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120201519.1U CN215109274U (en) | 2021-01-25 | 2021-01-25 | Offshore wind energy storage and transportation system for pneumatic power generation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120201519.1U CN215109274U (en) | 2021-01-25 | 2021-01-25 | Offshore wind energy storage and transportation system for pneumatic power generation |
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| CN215109274U true CN215109274U (en) | 2021-12-10 |
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| CN202120201519.1U Active CN215109274U (en) | 2021-01-25 | 2021-01-25 | Offshore wind energy storage and transportation system for pneumatic power generation |
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2021
- 2021-01-25 CN CN202120201519.1U patent/CN215109274U/en active Active
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