CN115258072A - Wind, light, wave and fishing complementary concrete floating integrated device and operation method - Google Patents

Abstract

The invention provides a concrete floating integrated device with complementary wind, light, wave and fishing and an operation method, including a floating offshore fan part and a concrete floating foundation part. The comprehensive utilization of plate and oscillating water column wave energy power generation can well solve the conflict between floating offshore wind turbines and aquaculture land, make better use of floating platforms, and make reasonable and comprehensive utilization of resources, thereby reducing The purpose of cost; the floating foundation of the present invention is assembled by using concrete modules, and the concrete modules can be mass-produced, which reduces the production cost and simplifies the construction process; the existence of the oscillating water column of the present invention also enables the equipment to better utilize the wave The invention not only has high space utilization rate, but also effectively utilizes various marine resources, and provides a new idea for the utilization method of marine resources in the future.

Description

Wind, light, wave and fishing complementary concrete floating integrated device and operation method

technical field

The invention relates to the technical field of comprehensive utilization of marine resources, in particular to a concrete floating comprehensive device and an operation method in which wind, light, wave and fish complement each other.

Background technique

The statements in this section merely provide background art related to the present invention and do not necessarily constitute prior art.

The ocean is a basic component of the global life support system and a valuable asset that contributes to sustainable development. The development and utilization of new clean energy is the only way for sustainable development and environmental protection. Rational development of marine resources is the key to sustainable economic development. Intrinsic requirements for development. In recent years, various floating structures aimed at the effective use of sea space and the development of marine resources have attracted widespread attention. These structures are basically steel structures, which are prone to rust and corrosion, and are difficult to maintain after long-term operation.

Cement concrete is the most widely used and most important building material in modern structures. Concrete has abundant material sources, low price, simple production process, easy molding, and more importantly, high compressive strength. Concrete is also Therefore, it is widely used in various engineering fields. Compared with steel structures, concrete structures have lower cost, are not easy to corrode, and have lower requirements for construction technology and later maintenance.

However, the inventors found that the current research and development results of floating concrete structures are limited, and the methods for the development of marine resources are limited to the construction of single offshore wind farms, offshore photovoltaic power Comprehensive utilization of marine resources, waves and aquatic resources, and the basic design, construction and operation and maintenance costs of a single development method are high, and the development and utilization of marine resources is not effective.

Contents of the invention

In order to solve the deficiencies of the prior art, the present invention provides a concrete floating comprehensive device and operation method that complement wind, light, wave and fish, combining offshore wind turbines, concrete floating foundation cultivation, solar panels and oscillating water columns, It effectively utilizes wind energy, light energy and wave energy, promotes the development of the breeding industry, has good stability, high strength, and wide sea area.

In order to achieve the above object, the present invention adopts the following technical solutions:

The first aspect of the present invention provides a concrete floating comprehensive device that complements wind, light, waves and fish.

A concrete floating comprehensive device that complements wind, light, waves and fish, including:

A hollow concrete floating foundation with a regular hexagonal prism structure, the upper side of each corner of the concrete floating foundation is fixedly connected to the tower of a horizontal axis wind turbine, and the upper part of the hollow space of the concrete floating foundation is open;

There are multiple grooves on the inner wall of the concrete floating foundation for the entry and exit of solar photovoltaic panels. In the grooves, there are retractable rails for carrying solar photovoltaic panels. At least two layer groove;

The hollow space is provided with a side net close to the inner side wall of the concrete floating foundation, a partition net for dividing the hollow space into multiple areas, and a bottom net, and the lifting of the bottom net and the inner side wall of the concrete floating foundation Rail sliding connection;

The concrete floating foundation is connected to the seabed through mooring elements or components, and the central area of the concrete floating foundation is provided with a living and working platform, and the living and working platforms are fixedly connected to the inner sidewall of the concrete floating foundation through connecting rods.

The second aspect of the present invention provides a concrete floating comprehensive device in which wind, light, wave and fish complement each other.

A concrete floating comprehensive device that complements wind, light, waves and fish, including:

A hollow concrete floating foundation with a positive N prism structure, the upper side of each corner of the concrete floating foundation is fixedly connected with a tower of a horizontal axis wind turbine, and the upper part of the hollow space of the concrete floating foundation is open, wherein, N is greater than or is equal to 7;

There are multiple grooves on the inner wall of the concrete floating foundation for the entry and exit of solar photovoltaic panels. In the grooves, there are retractable rails for carrying solar photovoltaic panels. At least two layer groove;

The hollow space is provided with a side net close to the inner side wall of the concrete floating foundation, a partition net for dividing the hollow space into multiple areas, and a bottom net, and the lifting of the bottom net and the inner side wall of the concrete floating foundation Rail sliding connection;

The concrete floating foundation is connected to the seabed through mooring elements or components, and the central area of the concrete floating foundation is provided with a living and working platform, and the living and working platforms are fixedly connected to the inner sidewall of the concrete floating foundation through connecting rods.

As an optional implementation, segmented ballast tanks are arranged inside the concrete floating foundation.

As an optional implementation, the concrete floating foundation includes multiple concrete modules. The middle part of the concrete module is a hollow structure. The concrete modules are pre-embedded with steel bars and interspersed with multiple corrugated pipes. Connection, after multiple concrete modules are connected, there are sealing plates at both ends of the whole, and the size and specification of each concrete module are uniform.

As an optional implementation, each side of the concrete floating foundation is provided with at least one air chamber composed of an empty box, each air chamber has an opening submerged in the part below the water surface, and an airflow channel is provided on the upper part of the air chamber. Air turbines are installed in the channel.

As an optional implementation, each solar photovoltaic panel is a triangular photovoltaic panel, and each triangular photovoltaic panel is spliced around the central axis of the concrete floating foundation in turn.

Furthermore, the grooves in different layers correspond to the triangular photovoltaic panels in different areas, and when all the triangular photovoltaic panels fully extend out of the concrete floating foundation with their respective tracks, the light-receiving surfaces of the triangular photovoltaic panels do not affect each other.

As an optional implementation, the bottom of the concrete floating foundation is equipped with an anti-sinking plate and a floating air bag.

The third aspect of the present invention provides an operation method of a concrete floating integrated device in which wind, light, wave and fish complement each other.

An operating method for a concrete floating complex device that complements wind, light, waves, and fish, including the following processes:

Complete the preparation of the concrete floating foundation in the dock in advance;

Use the buoyancy of the buoyant air bag at the bottom of the concrete floating foundation to float and tow the overall structure to the installation site;

After positioning, deflate the floating air bag, inject water into the structure through the ballast tank in the concrete floating foundation, adjust the draft to achieve the leveling of the structure, and finally the construction is completed.

As an optional implementation, each side of the concrete floating foundation is provided with at least one air chamber composed of an empty box, each air chamber has an opening submerged in the part below the water surface, and an airflow channel is provided on the upper part of the air chamber. An air turbine is installed in the channel;

When the wave moves towards the empty tank, when the wave crest is close to the front wall of the empty tank, water enters the empty tank, pushing the water level in the tank to rise, and the rising water level increases the air pressure in the tank, and the air in the air chamber is discharged through the inlet and outlet holes, and the gas is ejected at a high flow rate;

When the trough is close to the front wall of the empty tank, water is pumped out from the empty tank, and the water level in the tank drops. The lowered water level reduces the air pressure in the tank, and the external air enters the air chamber at high speed through the inlet and outlet holes, and the outflow and inflow gas will drive the turbine to rotate, and the turbine will Drive the generator to generate electricity.

Compared with prior art, the beneficial effect of the present invention is:

1. The wind, light, wave and fishing complementary concrete floating comprehensive device and operation method of the present invention combine offshore wind turbines, concrete floating foundation culture, solar panels and oscillating water columns to effectively utilize wind energy, light Energy, wave energy, and at the same time promote the development of the breeding industry.

2. The wind, light, wave and fishing complementary concrete floating comprehensive device and operation method of the present invention have good stability, high strength, wide sea area, and the existence of nets divides the area into six parts, which is convenient for breeding Different aquatic products can be salvaged or seeded in different areas according to their mature reproductive characteristics.

3. In the wind, light, wave and fishing complementary concrete floating comprehensive device and operation method described in the present invention, the selected concrete floating foundation can use a plurality of prefabricated concrete modules, which can be assembled into suitable wind turbines according to the local sea conditions The basic form and the size and specification of the concrete modules are uniform, which can be mass-produced on an assembly line and then transported, which improves efficiency, saves construction time, reduces construction difficulty, and simplifies the construction process.

4. The wind, light, wave and fish complementary concrete floating comprehensive device and operation method described in the present invention have solved the problem of the conflict between the floating offshore wind turbine and the land for aquatic product breeding, and at the same time can better By using the floating platform, the resources can be rationally and comprehensively utilized, so as to achieve the purpose of reducing costs.

5. The wind, light, wave, and fishing complementary concrete floating integrated device and operation method described in the present invention, the existence of the oscillating water column also makes the equipment better use of wave energy, not only has a high space utilization rate, but also effectively utilizes A variety of marine resources provide a new way of thinking for the future utilization of marine resources.

Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention.

Fig. 1 is an isometric view of a concrete floating comprehensive device that complements wind, light, waves and fish according to an embodiment of the present invention.

Fig. 2 is an isometric view (without solar panel and chute system) of the wind, light, wave and fish complementary concrete floating complex device provided by the embodiment of the present invention.

Fig. 3 is a top view of a concrete floating integrated device that complements wind, light, waves and fish according to an embodiment of the present invention.

Fig. 4 is a bottom view of the wind, light, wave and fish complementary concrete floating complex device provided by the embodiment of the present invention.

Fig. 5 is a front view of the wind, light, wave and fish complementary concrete floating complex device provided by the embodiment of the present invention.

Fig. 6 is a bottom view of the wind, light, wave and fish complementary concrete floating complex device provided by the embodiment of the present invention.

Among them, 1-horizontal axis wind turbine blade system; 2-wind turbine tower; 3-living and working platform; 4-concrete floating foundation; 5-netting; 51-side netting; 52-separation netting; -Bottom net clothing; 6-Solar photovoltaic panels; 7-Air chamber; 8-Mooring system;

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom" etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only a relative term determined for the convenience of describing the structural relationship of the various components or elements of the present invention, and does not specifically refer to any component or element in the present invention, and cannot be understood as a reference to the present invention. Invention Limitations.

In the present invention, terms such as "fixed", "connected" and "connected" should be understood in a broad sense, which means that they can be fixedly connected, integrally connected or detachably connected; they can be directly connected or can be connected through the middle The medium is indirectly connected. For relevant researchers or technical personnel in the field, the specific meanings of the above terms in the present invention can be determined according to specific situations, and should not be construed as limitations on the present invention.

In the case of no conflict, the embodiments and the features in the embodiments of the present invention can be combined with each other.

Example:

With the development of offshore fish farming and offshore wind turbines, it has become an inevitable trend to move from shallow seas to deep seas. Aquaculture needs to use the vast deep sea with better water sources as a breeding base, while wind power generation needs to rely on the more powerful and stable sea breeze in the deep sea for high-power production. Development, taking into account the problems in transportation and construction, the application of a concrete floating foundation based on the complementarity of wind, light and fishery in deep sea areas that combines vertical axis wind turbines, solar photovoltaic panels and aquaculture concrete floating foundations will be A new way out, combined with the existing problems of the existing solutions mentioned in the background technology, Embodiment 1 of the present invention provides a kind of concrete floating comprehensive device with complementary wind, light, wave and fish, as shown in Fig. 1, Fig. 2, As shown in Figure 3, Figure 4, Figure 5 and Figure 6, including:

Horizontal axis wind turbine blade system 1, wind turbine tower 2, living and working platform 3, solar photovoltaic panels 6, concrete floating foundation 4 and mooring system 8, the horizontal axis wind turbine blade system 1 includes wind turbine blades and The hub of the wind generator, the blades of the wind generator are rotationally connected to the hub of the wind generator, and the hub of the wind generator is connected to one end of the tower 2 of the wind generator.

The horizontal section of the concrete floating foundation 4 is a regular hexagonal structure (specifically, a hollow concrete floating foundation with a regular hexagonal prism structure), and the six horizontal axis wind turbine blade systems 1 pass through the corresponding wind turbine towers respectively. The cylinder 2 is fixedly connected to the upper side of the six corners of the top surface of the concrete floating foundation (the other end of the wind turbine tower 2 is fixedly connected to the concrete floating foundation), and the power generation system of the horizontal axis wind turbine blade system 1 It is arranged inside the concrete floating foundation.

It can be understood that in some other embodiments, the concrete floating foundation 4 can also be a hollow positive N prism structure, and N can be an integer greater than or equal to 7, which can be selected by those skilled in the art according to specific working conditions, and will not be repeated here. repeat.

The mooring system 8 (comprising a plurality of elements or components for mooring) is connected to the concrete floating foundation for connecting the floating equipment to the seabed to constrain it in The orientation on the water surface, so as to form a field area that can carry out wind power generation and photovoltaic farming at the same time.

In this embodiment, the living and working platform 3 is arranged in the central area of the concrete floating foundation 4 , and the living and working platform 3 is fixedly connected to the inner side wall of the concrete floating foundation 4 through connecting rods.

In this embodiment, the solar photovoltaic panel 6 is built on the concrete floating foundation through a chute system.

In the present embodiment, the interior of the concrete floating foundation 4 is equipped with a netting 51, and the netting 5 is divided into a side netting 51, a separating netting 52 and a bottom netting 53 for separating, and the bottom netting 53 is connected to the concrete buoy. On the lifting track assembled on the inner side wall of the type foundation, it can move up and down along the lifting track to realize the retraction of the bottom surface 53 net clothes.

It can be understood that the partition nets 52 can divide the breeding area into any number of parts, and those skilled in the art can select according to specific working conditions, and details will not be repeated here.

In this embodiment, segmental ballast tanks are arranged inside the floating foundation 4 .

In this embodiment, the concrete floating foundation 4 is made of a plurality of concrete modules and steel wire ropes, wherein the concrete modules have the same wall thickness, cross-sectional shape and size;

In this embodiment, the cross-sectional shape of the concrete module can be selected according to the basic shape. In this design, the cross-section of the concrete module is mostly rectangular, and a small part can be selected as oval and circular;

In this embodiment, the middle part of the concrete module is a hollow structure, the steel bars are pre-embedded in the wall and a plurality of corrugated pipes are interspersed, and the steel wire ropes pass through the corrugated pipes to connect each concrete module in turn. plate.

In this embodiment, each side of the concrete floating foundation 4 is provided with an air chamber 7 composed of an empty box (multiple air chambers can also be optionally provided, and those skilled in the art can select according to specific working conditions, and will not be repeated here. Repeat); the lower front wall of the air chamber 7 can be connected with the sea water, and the upper air chamber 7 has an air-flow passage hole for connecting the turbine and the generator.

Each air chamber 7 is submerged in part of the opening below the water surface, and the upper part of the air chamber 7 has an air flow passage, and an air turbine is installed in the air flow passage;

When the wave moves toward the empty box, when the wave crest is close to the front wall of the empty box, water enters the empty box, pushing the water level in the box to rise, and the rising water level increases the air pressure in the box, and the air in the air chamber is discharged through the inlet and outlet holes. Flow velocity ejection;

When the trough is close to the front wall of the empty tank, water is pumped out from the empty tank, and the water level in the tank drops. The lowered water level reduces the air pressure in the tank, and the outside air enters the air chamber at high speed through the inlet and outlet holes, and the outflow and inflow gas will drive the turbine to rotate, and the turbine will rotate. Drive the generator to generate electricity.

It can be understood that those skilled in the art can choose the appropriate size of the air chamber according to the wave conditions in the local sea area, which can make the inner and outer water surface oscillate similar to the frequency of the outer wave, and the amplitude of the resonant water surface fluctuation will be much higher than that of the wave, greatly improving the gas flow rate. flow thereby improving system efficiency.

In this embodiment, the inner wall of the concrete floating foundation 4 is provided with a plurality of grooves for the entry and exit of the solar photovoltaic panels 6, and retractable rails for carrying the solar photovoltaic panels are arranged in the grooves, and along the concrete floating At least two layers of grooves are arranged in the upper and lower directions of the type foundation.

Specifically, in this embodiment, in order to maximize the use of solar energy, the solar photovoltaic panel 6 is designed as a triangle, and each triangular photovoltaic panel is designed in turn as an inner solar panel and an outer solar panel along the direction from inside to outside. The solar panels are equipped with two chutes, the upper chute and the lower chute, which are respectively used with the inner and outer solar panels to avoid interference when the solar panels move; the design of the retractable solar photovoltaic panels can be used more efficiently Solar energy, and at the same time, when the sea wind and waves are too large, the solar panels can be shrunk in time to avoid the erosion of the solar panels by the waves, prolonging the service life of the solar panels.

It can be understood that the triangular photovoltaic panels of each layer are combined to form a ring structure around the central axis of the concrete floating foundation 4. In some other embodiments, photovoltaic panels of other structures can also be used, as long as the above functions can be achieved. Those skilled in the art can make a selection according to specific working conditions, and details will not be repeated here.

It can be understood that in some other embodiments, in order to adapt to the size of different concrete floating foundations 4, more levels of chutes can be set, such as upper, middle and lower layers, or upper, middle upper, middle, middle There are five floors, lower and lower, but it is necessary to ensure that the light-receiving surfaces of each solar photovoltaic panel 6 are not affected by each other when they are fully extended out of the concrete floating foundation 4. Those skilled in the art can freely choose according to the above principles, and will not repeat them here.

In this embodiment, the specific operation methods include:

The wind, light, wave and fishing complementary concrete floating comprehensive device can be completed in advance in the dock. According to the design, several batch-produced concrete modules with rectangular cross-sections are only connected in series by means of pre-tightened steel wire ropes. At the same time, bellows are interspersed inside, and steel sealing plates are set on the end plates, which are finally determined as hexagonal concrete floating foundations;

After the installation of the overall structure is completed, the lifting track and the chute system can be installed; after the chute system is installed, the retractable solar panels can be installed, and then the fan tower and fan blade system can be installed in turn, and finally the netting can be installed. Install;

Install anti-sinking plates and floating airbags at the bottom of the concrete floating foundation, use the buoyancy of the floating airbags to float and tow the overall structure to the installation site, and use the mooring system to achieve precise positioning;

After positioning, deflate the buoyant airbags, inject water into the structure through the ballast tank, adjust the draft to achieve the leveling of the structure, and finally complete the construction.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A concrete floating type integrated device with complementary wind, light, wave and fishing is characterized in that:

the method comprises the following steps:

the upper side of each corner of the concrete floating foundation is fixedly connected with a tower barrel of a horizontal axis wind turbine, and the upper part of a hollow space of the concrete floating foundation is provided with an opening;

the inner side wall of the concrete floating foundation is provided with a plurality of grooves for the solar photovoltaic panels to pass in and out, telescopic tracks for bearing the solar photovoltaic panels are arranged in the grooves, and at least two layers of grooves are arranged along the up-down direction of the concrete floating foundation;

the side net close to the inner side wall of the concrete floating foundation, the dividing net for dividing the hollow space into a plurality of areas and the bottom net are arranged in the hollow space, and the bottom net is in sliding connection with a lifting track of the inner side wall of the concrete floating foundation;

the concrete floating foundation is connected with the seabed through a mooring element or assembly, a living and working platform is arranged in the center area of the concrete floating foundation, and the living and working platform is fixedly connected with the inner side wall of the concrete floating foundation through a connecting rod.

2. A wind, light, wave and fishing complementary concrete floating type integrated device is characterized in that:

the method comprises the following steps:

the concrete floating foundation is hollow and has a regular N-prism structure, the upper side of each corner of the concrete floating foundation is fixedly connected with a tower barrel of a horizontal axis wind turbine, the upper part of a hollow space of the concrete floating foundation is provided with an opening, and N is more than or equal to 7;

the inner side wall of the concrete floating foundation is provided with a plurality of grooves for the solar photovoltaic panels to pass in and out, telescopic tracks for bearing the solar photovoltaic panels are arranged in the grooves, and at least two layers of grooves are arranged along the up-down direction of the concrete floating foundation;

the side net close to the inner side wall of the concrete floating foundation, the dividing net for dividing the hollow space into a plurality of areas and the bottom net are arranged in the hollow space, and the bottom net is in sliding connection with a lifting track of the inner side wall of the concrete floating foundation;

the concrete floating foundation is connected with the seabed through a mooring element or assembly, a living and working platform is arranged in the center area of the concrete floating foundation, and the living and working platform is fixedly connected with the inner side wall of the concrete floating foundation through a connecting rod.

3. The wind, light, wave and fish complementary concrete floating integrated device according to claim 1 or 2, characterized in that:

a sectional ballast tank is arranged inside the concrete floating foundation.

4. The wind, light, wave, fish complementary concrete floating complex apparatus of claim 1 or 2, characterized in that:

the floating concrete foundation comprises a plurality of concrete modules, the middle parts of the concrete modules are of hollow structures, embedded steel bars in the concrete modules are inserted into a plurality of corrugated pipes, a steel wire rope penetrates through the corrugated pipes to connect the concrete modules in sequence, sealing plates are arranged at the two ends of the whole body after the concrete modules are connected, and the size and the specification of each concrete module are unified.

5. The wind, light, wave and fish complementary concrete floating integrated device according to claim 1 or 2, characterized in that:

each side of the concrete floating foundation is provided with at least one air chamber formed by empty boxes, the part of each air chamber submerged below the water surface is provided with an opening, the upper part of each air chamber is provided with an air flow channel, and a pneumatic turbine is arranged in each air flow channel.

6. The wind, light, wave, fish complementary concrete floating complex apparatus of claim 1 or 2, characterized in that:

each solar photovoltaic plate is a triangular photovoltaic plate, and each triangular photovoltaic plate is spliced around the central shaft of the concrete floating foundation in sequence.

7. The wind, light, wave and fish complementary concrete floating integrated device according to claim 6, characterized in that:

the grooves of different layers correspond to the triangular photovoltaic panels in different areas, and when all the triangular photovoltaic panels completely extend out of the concrete floating foundation along with respective tracks, the light receiving surfaces of the triangular photovoltaic panels do not affect each other.

8. The wind, light, wave and fish complementary concrete floating integrated device according to claim 1 or 2, characterized in that:

the bottom of the concrete floating foundation is provided with an anti-sinking plate and a floating air bag.

9. A working method of a concrete floating comprehensive device with complementary wind, light, wave and fishing is characterized in that:

the preparation of the concrete floating foundation is completed in a dock in advance;

the integral structure is floated and towed to an installation site by utilizing the buoyancy of a floating air bag at the bottom of the concrete floating foundation;

and (4) deflating the floating air bag after positioning, injecting water into the structure through a ballast tank in the concrete floating foundation, adjusting the draft to realize the leveling of the structure, and finally finishing the construction.

10. The method of claim 9, wherein the concrete floating complex is selected from the group consisting of wind, light, wave, and fish:

each side of the concrete floating foundation is provided with at least one air chamber formed by an empty box, the part of each air chamber submerged below the water surface is provided with an opening, the upper part of each air chamber is provided with an air flow channel, and a pneumatic turbine is arranged in each air flow channel;

when the wave moves towards the empty box and the wave crest approaches the front wall of the empty box, water enters the empty box to push the water level in the box to rise, the rising water level increases the air pressure in the box, air in the air chamber is discharged through the inlet and outlet holes, and the air is sprayed out at a high flow rate;

when the wave trough is close to the front wall of the empty box, water is pumped out of the empty box, the water level in the box is lowered, the lowered water level enables the air pressure in the box to be lowered, external air enters the air chamber through the access hole at a high speed, the inflowing gas pushes the turbine to rotate, and the turbine drives the generator to generate electricity.

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