CN218913054U

CN218913054U - Platform for pneumatic power generation by using surge

Info

Publication number: CN218913054U
Application number: CN202223401624.3U
Authority: CN
Inventors: 张正泉; 张兴发
Original assignee: Yucheng Longtai Engineering Construction Co ltd
Current assignee: Yucheng Longtai Engineering Construction Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-04-25
Anticipated expiration: 2032-12-19

Abstract

The utility model relates to a platform for pneumatic power generation by using surge, which comprises an offshore platform, a cylinder barrel, a piston rod and a floating barrel, wherein a gas bag for storing pressure gas is arranged in the offshore platform, the interior of the cylinder barrel is a cylinder barrel inner cavity, and the piston rod is arranged in the cylinder barrel inner cavity, and is characterized in that: the offshore platform is fixedly provided with a pneumatic power generation device, an air inlet of the pneumatic power generation device is communicated with an air bag through an air inlet pipe, and an air outlet of the pneumatic power generation device is communicated with the upper end of the inner cavity of each cylinder through an air return pipe; an air inlet valve is arranged at the connection position of the upper end of the inner cavity of the cylinder barrel and the air bag, and an air return valve is arranged at the connection position of the air return pipe and each inner cavity of the cylinder barrel. Compared with the existing power generation system using liquid oil as a medium, the platform adopting the surge to perform pneumatic power generation has the advantages that the risk of marine pollution caused by leakage of the liquid oil is avoided, the compression ratio of gas is higher, stable and balanced electric energy output is realized, and the floating force of the platform is stronger.

Description

Platform for pneumatic power generation by using surge

Technical Field

The utility model relates to a power generation platform, in particular to a platform for pneumatic power generation by using swell.

Background

Under the combined action of sea wind blowing and lunar attraction, a surge which is never stopped is formed on the sea surface, the surge contains kinetic energy, and if the kinetic energy of the surge can be utilized and converted into electric energy, the consumption of fossil energy can be reduced, thereby being beneficial to the construction of a saving and environment-friendly society. In order to convert the ocean swell into electric energy for utilization, the inventor applies for patent number CN201710121599.8 in 2017, 03 and 02, invents a patent application named as a platform with swell generating function, and obtains patent authorization, and the floating barrel floating on the sea surface moves along with the swell to drive the piston rod to move in the cylinder body, and the liquid oil enters and exits the cylinder body to drive the impeller generator.

However, in the practical application process, the technical scheme in the patent adopts liquid oil, so that pollution to the sea surface can be caused if oil leakage occurs during operation. Moreover, because the liquid oil is adopted, the compressibility of the liquid oil is low, the energy generated when the surge is large can not be temporarily stored, and the power generation capacity of the impeller generator is insufficient when the surge is small, so that the power generation output of the impeller generator is not adjustable, and the utilization of the generated electric energy is not facilitated. In order to solve the problems, the utility model provides a pneumatic power generation device which is driven by compressed gas to generate power by taking the compressed gas as a medium for temporarily storing surge kinetic energy.

Disclosure of Invention

The utility model provides a platform for pneumatic power generation by using swell in order to overcome the defects of the technical problems.

The utility model relates to a platform for pneumatic power generation by using surge, which comprises an offshore platform, a cylinder barrel, a piston rod and a floating barrel, wherein an air bag for storing pressure air is arranged in the offshore platform; the method is characterized in that: the offshore platform is fixedly provided with a pneumatic power generation device, an air inlet of the pneumatic power generation device is communicated with an air bag through an air inlet pipe, and an air outlet of the pneumatic power generation device is communicated with the upper end of the inner cavity of each cylinder through an air return pipe; the upper end of the inner cavity of the cylinder barrel and the connecting position of the air bag are provided with air inlet valves, the connecting position of the air return pipe and each inner cavity of the cylinder barrel is provided with an air return valve, the air inlet valves are one-way valves which only allow air in the inner cavity of the cylinder barrel to enter the air bag, and the air return valves are one-way valves which only allow air in the air return pipe to enter the inner cavity of the cylinder barrel.

According to the platform for pneumatic power generation by using the surge, the periphery of the piston rod below the cylinder barrel is provided with the columnar elastic protection film, and the lower end of the elastic protection film is fixed at the lower end of the piston rod; a steel wire spring which stretches with the piston rod and supports the elastic protective film is arranged between the elastic protective film and the piston rod.

The platform for pneumatic power generation by using the surge has the same structure as the air inlet valve and the air return valve, and consists of a valve rod, a baffle plate, a valve support and a return spring, wherein the valve support and the baffle plate are arranged in parallel, an exhaust port is formed in the center of the baffle plate, a guide hole is formed in the center of the valve support, vent holes are uniformly formed in the periphery of the guide hole on the valve support, and the valve rod penetrates through the guide hole and the exhaust port; a valve plate for plugging the exhaust port is fixed at the end part of the valve rod at the outer side of the baffle plate, and a limiting plate for limiting the moving distance of the valve rod is fixed at the end part of the valve rod at the outer end of the valve bracket; a supporting plate is fixed on the valve rod between the valve support and the baffle, and a return spring is positioned between the supporting plate and the baffle.

According to the platform for pneumatic power generation by using the surge, the flow regulating valve for controlling the gas flow in the air inlet pipe and the on-off state of the air inlet pipe is arranged on the air inlet pipe.

The platform for pneumatic power generation by adopting the surge is characterized in that an inner cavity is arranged in the offshore platform, and an air bag is arranged in the inner cavity of the offshore platform and is made of airtight materials.

According to the platform for pneumatic power generation by using the surge, the number of the pistons fixed at the upper end of the piston rod is two, and lubricating oil is stored above each piston.

According to the platform for pneumatic power generation by using the surge, the air pump and the air pump are arranged on the offshore platform, and the air outlet of the air pump is communicated with the air bag through the air pump.

The platform for pneumatic power generation by adopting the surge is characterized in that a gas release pipe is arranged on the offshore platform, one end of the gas release pipe is communicated with a gas bag, the other end of the gas release pipe is communicated with the outside, and a gas release valve for controlling the on-off state of the gas release pipe is arranged on the gas release pipe.

The beneficial effects of the utility model are as follows: according to the platform for pneumatic power generation by using the surge waves, the air bag is arranged in the inner cavity of the offshore platform, the pneumatic power generation device is arranged on the offshore platform, the air inlet of the pneumatic power generation device is communicated with the air bag through the air inlet pipe, the air outlet is communicated with the upper end of the inner cavity of each cylinder barrel through the air return pipe, and the platform is provided with the air return valve which only allows air to enter the inner cavity of each cylinder barrel from the air return pipe and the air inlet valve which only allows air to enter the air bag from the inner cavity of each cylinder barrel; when the floating barrel below a certain piston rod changes from the trough of the surge to the crest, the piston in the inner cavity of the cylinder barrel moves upwards along with the piston rod, at the moment, the corresponding air inlet valve is opened, the air return valve is closed, compressed gas in the inner cavity of the cylinder barrel enters the air bag, the conversion from the kinetic energy of the surge to the compressed internal energy of the gas is realized, and the converted energy of the surge is stored in the air bag to drive the pneumatic power generation device to generate power; when a certain floating barrel changes from the crest to the trough of the surge, the piston moves downwards along with the piston rod, at the moment, the corresponding air return valve is opened, the air inlet valve is closed, and the air discharged by the pneumatic power generation device enters the inner cavity of the cylinder barrel, so that under the driving action of the surge, the air circularly flows in the inner cavity of the cylinder barrel, the air bag, the air inlet pipe, the pneumatic power generation device and the air return pipe, the kinetic energy of the surge is converted into electric energy by taking the internal energy of the compressed air as a medium, the full utilization of the surge energy on the ocean is effectively realized, compared with the existing power generation system taking liquid oil as the medium, the risk of sea pollution caused by leakage of the liquid oil is avoided, the compression ratio of the air is higher, and the stable and balanced electric energy output is more facilitated; meanwhile, high-pressure gas is stored in the gas bag and the cylinder barrel, so that the floating force of the whole offshore platform is increased, and the bearing effect of the offshore platform is better.

Drawings

FIG. 1 is a schematic diagram of a platform for pneumatic power generation using swell in accordance with the present utility model;

FIG. 2 is a schematic view of the structure of the single cylinder connected to the offshore platform according to the present utility model;

fig. 3 is a partial enlarged view of the area a in fig. 2.

In the figure: 1 offshore platform, 2 cylinder, 3 piston rod, 4 float bowl, 5 air bag, 6 cylinder inner chamber, 7 piston; 8 pneumatic power generation devices, 9 air inlet pipes, 10 air return pipes, 11 air inlet valves, 12 air return valves, 13 flow regulating valves, 14 elastic protection films, 15 steel wire springs and 16 lubricating oil; 17 valve rod, 18 valve block, 19 baffle, 20 valve support, 21 return spring, 22 limiting plate, 23 backup pad, 24 gas vent, 25 air vent, 26 inflating pump, 27 inflating pipe, 28 bleed pipe, 29 bleed valve.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

As shown in fig. 1, a schematic structural diagram of a platform for pneumatic power generation by using surge is provided, which is composed of an offshore platform 1, a cylinder barrel 2, a piston rod 3, a floating barrel 4, a gas bag 5, a pneumatic power generation device 8, a gas inlet pipe 9, a gas return pipe 10, a gas inlet valve 11 and a gas return valve 12, wherein the offshore platform 1 floats on the sea surface and can be used for power generation in the utility model and other production and living applications. The inside of the offshore platform 1 is provided with an air bag 5, and the air bag 5 is used for realizing the storage of pressure gas. A certain number of cylinder barrels 2 are uniformly fixed below the offshore platform 1, the cylinder barrels 2 are in a vertical state, and the inside of the cylinder barrel 2 is a cylinder barrel inner cavity 6 in a cylindrical shape.

A vertical piston rod 3 is arranged in the inner cavity 6 of the cylinder barrel, the floating barrel 4 is fixed at the lower end of the piston rod 3, and the floating barrel 4 fluctuates along with waves. The upper end of the piston rod 3 is fixed with a piston 7, and the piston 7 is used for realizing the sealing between the piston rod 3 and the inner wall of the cylinder barrel 2 so as to realize the compression of the gas in the inner cavity 6 of the cylinder barrel when the piston 7 moves upwards along with the piston rod 3 and the float barrel 4.

The pneumatic power generation device 8 is fixed on the offshore platform 1, and an air inlet of the pneumatic power generation device 8 is communicated with the air bag 5 through an air inlet pipe 9 so that high-pressure air in the air bag 5 enters the pneumatic power generation device to generate power; the air outlet of the pneumatic power generation device 8 is connected with the upper end of each cylinder barrel inner cavity 6 through an air return pipe 10, so that the air discharged by the pneumatic power generation device 8 (the discharged air also has pressure) enters the cylinder barrel inner cavities 6, and the air circularly flows in the cylinder barrel inner cavities 6, the air bags 5, the air inlet pipe 9, the pneumatic power generation device 8 and the air return pipes 10.

The connecting position of the inner cavity 6 of the cylinder barrel and the air bag 5 is provided with an air inlet valve 11, and the air inlet valve 11 is a one-way valve 11 which only allows the air in the inner cavity 6 of the cylinder barrel to enter the air bag 5. An air return valve 12 is arranged at the connecting position of the air return pipe 10 and each cylinder barrel inner cavity 6, and the air return valve 12 only allows air in the air return pipe 10 to flow into the cylinder barrel inner cavities 6.

The pneumatic power generation device 8 is composed of a steam turbine and a generator, the steam turbine is driven to rotate by high-pressure gas entering from the gas bag 5, the steam turbine drives the generator to generate power, and gas exhausted from the steam turbine enters the muffler 10. In order to control the power generated by the pneumatic power generation device 8 and realize stable power generation, the flow regulating valve 13 is arranged on the air inlet pipe 9, and the flow regulating valve 13 can not only control the air flow in the air inlet pipe 9, but also control the on-off state of the air inlet pipe 9.

In order to realize the storage of high-pressure gas, an inner cavity for placing a gas bag 5 is arranged inside the offshore platform 1, the gas bag 5 is placed in the inner cavity of the offshore platform 1, and the gas bag 5 is made of high-pressure resistant materials so as to realize the storage of the high-pressure gas entering from the inner cavity 6 of the cylinder barrel.

In the process that the piston rod 3 moves up and down along with the float bowl 4, in order to avoid corrosion of the piston rod 3 by sea water and leakage of lubricating oil on the upper portion of the piston 7 into the sea, an elastic protection film 14 is arranged on the periphery of the piston rod 3 below the cylinder barrel 2, and the lower end of the elastic protection film 14 is fixed at the lower end of the piston rod 3, so that the piston rod 3 is isolated from the sea water by the elastic protection film 14. In order to ensure that the elastic protection film 14 can well follow the lifting of the piston rod 3, a steel wire spring 15 is arranged between the piston rod 3 and the elastic protection film 14, and the steel wire spring 15 and the elastic protection film 14 together follow the lifting of the piston rod 3. The number of pistons 7 fixed at the upper end of the piston rod 3 shown is two to ensure good tightness, and a certain amount of lubricating oil 16 is stored above each piston 7.

As shown in fig. 2, a schematic structural diagram of connection of a single cylinder barrel and an offshore platform is provided, fig. 3 shows a partial enlarged view of a region a, the structure of the air inlet valve 11 and the structure of the air return valve 12 are the same, each of which is composed of a valve rod 17, a valve plate 18, a baffle 19, a valve support 20, a return spring 21, a limiting plate 22 and a support plate 23, the baffle 19 is arranged in parallel with the valve support 20, and the baffle 19 and the valve support 20 are arranged in the cylinder barrel inner cavity 6 or the air return pipe 10. An exhaust port 24 is formed in the center of the baffle 19, and the inner diameter of the exhaust port 24 is smaller than the outer diameter of the valve plate 18, so that the valve plate 18 can be plugged with the exhaust port 24. The center of the valve support 20 is provided with a guide hole, the valve support 20 is also uniformly provided with a vent hole 25, the valve rod 17 passes through the guide hole and the exhaust port 24, and the guide hole is used for realizing the guide in the movement process of the valve rod 17.

The end of the valve rod 17 outside the baffle 19 is fixed with a valve plate 18, the valve rod 17 at the outer end of the valve support 20 is fixed with a limiting plate 22, the limiting plate 22 is used for limiting the moving position of the valve rod 17, and the valve support 20 is used for limiting the limiting plate 22 to avoid excessive movement of the valve rod 17. The support plate 23 is shown fixed to the valve stem 17 between the valve support 20 and the baffle 19, and the return spring 21 is located between the support plate 23 and the baffle 19, the return spring 21 being used to effect return of the valve plate 18. The return spring 21 is always in a compressed state, so that the valve plate 18 is in a state of blocking the exhaust port 24 under the action of the return spring 21 on the assumption that the gas pressures on the inner side and the outer side of the baffle plate 19 are equal.

In the long-term use process of the offshore platform 1, the air bag 5, the cylinder barrel 2 or other parts may have air leakage, or after the bearing of the offshore platform 1 is increased, the height of the platform needs to be lifted to a certain extent, and then the offshore platform 1 needs to be inflated, so that the air inflation pump 26 is arranged on the offshore platform 1, and the air outlet of the air inflation pump 26 is communicated with the air bag 5 through the air inflation pipe 27. When the air bag 5 needs to be inflated, the inflation pump 26 is started to inflate the air bag.

It is sometimes necessary to reduce the draft of the offshore platform 1, for example, when the load bearing of the offshore platform 1 becomes small, and in order to ensure the stability of the offshore platform 1, it is necessary to reduce the height of the offshore platform 1 from the sea level, so that a gas release pipe 28 is provided on the offshore platform 1, one end of the gas release pipe 28 is communicated with the air bag 5, the other end is communicated with the outside atmosphere, and a gas release valve 29 for controlling the on-off state of the gas release pipe 28 is provided on the gas release pipe 28. When the air bag 5 needs to be deflated, the deflating valve 29 is opened to deflate.

The working principle of the platform for pneumatic power generation by using the surge of the utility model is as follows:

when the float 4 below the piston rod 3 is in the process of changing the state of the surge from the trough to the crest (such as the 1# float and the 2# float in fig. 1), the float 4 moves upwards under the buoyancy action of the surge, and then drives the piston 7 to move upwards in the cylinder cavity 6, so that the compression of the gas in the cylinder cavity 6 is realized, the generated high-pressure gas is greater than the pressure of the gas in the gas bag 5, the pressure in the air return pipe 10 is lower than the pressure in the gas bag 5, at the moment, the air inlet valves 11 corresponding to the 1# float and the 2# float are opened, and the air return valves 12 are closed, so that the high-pressure gas in the cylinder cavity 6 flows into the gas bag 5, the conversion of the kinetic energy of the surge into the internal energy of the compressed gas is realized, and the kinetic energy of the surge is stored in the gas bag 5. The high pressure gas in the air bag 5 drives the pneumatic power generation device 8 to generate power.

When the float 4 below the piston rod 3 is in the process of changing the state of the surge from the crest to the trough (such as the 3# float and the 4# float in fig. 1), the float 4 moves downwards along with the surge under the action of self gravity, at the moment, the pressure in the inner cavity 6 of the cylinder barrel is reduced, the pressure is lower than the pressure of the gas in the gas bag 5 and the pressure of the gas in the gas return pipe 10, at the moment, the gas inlet valve 11 is closed, the gas return valve 12 is opened, and the gas discharged by the pneumatic power generation device 8 through the gas return pipe 10 enters the inner cavity 6 of the cylinder barrel.

It can be seen that under the driving action of the ocean surge, the gas is driven to circularly flow in the cylinder cavity 6, the gas bag 5, the gas inlet pipe 9, the pneumatic power generation device 8 and the gas return pipe 10, and the kinetic energy of the surge is converted into electric energy by taking compressed gas as a medium in the process of the circular flow, so that the power generation by the surge is realized, and the stability of the offshore platform 1 is ensured; meanwhile, the floating force of the offshore platform 1 is stronger because the pressure gas is stored in the gas bag 5 and the cylinder barrel 2.

Claims

1. The utility model provides an adopt surging to carry out pneumatic power generation's platform, including offshore platform (1), cylinder (2), piston rod (3) and float (4), be provided with in the offshore platform and store the pneumatic package (5) of pressure gas, evenly be fixed with a plurality of vertical cylinders below the offshore platform, the inside of cylinder is cylinder inner chamber (6), the piston rod sets up in the cylinder inner chamber, the float is fixed in the lower extreme of piston rod, the upper end of piston rod is fixed with piston (7) with cylinder inner chamber interference fit; the method is characterized in that: a pneumatic power generation device (8) is fixed on the offshore platform, an air inlet of the pneumatic power generation device is communicated with the air bag through an air inlet pipe (9), and an air outlet of the pneumatic power generation device is communicated with the upper end of each cylinder barrel inner cavity (6) through an air return pipe (10); an air inlet valve (11) is arranged at the connection position of the upper end of the inner cavity of the cylinder barrel and the air bag, an air return valve (12) is arranged at the connection position of the air return pipe and each inner cavity of the cylinder barrel, the air inlet valve is a one-way valve which only allows air in the inner cavity of the cylinder barrel to enter the air bag, and the air return valve is a one-way valve which only allows air in the air return pipe to enter the inner cavity of the cylinder barrel.

2. The platform for pneumatic power generation using swell as claimed in claim 1, wherein: a columnar elastic protection film (14) is arranged on the periphery of the piston rod (3) below the cylinder barrel (2), and the lower end of the elastic protection film is fixed at the lower end of the piston rod; a steel wire spring (15) which stretches with the piston rod and supports the elastic protection film is arranged between the elastic protection film and the piston rod.

3. The platform for aerodynamic power generation using swells according to claim 1 or 2, characterized in that: the structure of the air inlet valve (11) is the same as that of the air return valve (12), and the air inlet valve is composed of a valve rod (17), a baffle plate (19), a valve support (20) and a return spring (21), wherein the valve support and the baffle plate are arranged in parallel, an exhaust port (24) is formed in the center of the baffle plate, a guide hole is formed in the center of the valve support, vent holes (25) are uniformly formed in the periphery of the guide hole on the valve support, and the valve rod penetrates through the guide hole and the exhaust port; a valve block (18) for blocking the exhaust port is fixed at the end part of the valve rod at the outer side of the baffle plate, and a limiting plate for limiting the moving distance of the valve rod is fixed at the end part of the valve rod at the outer end of the valve bracket; a supporting plate (23) is fixed on the valve rod between the valve support and the baffle, and a return spring is positioned between the supporting plate and the baffle.

4. The platform for aerodynamic power generation using swells according to claim 1 or 2, characterized in that: the air inlet pipe (9) is provided with a flow regulating valve (13) for controlling the gas flow in the air inlet pipe and the on-off state of the air inlet pipe.

5. The platform for aerodynamic power generation using swells according to claim 1 or 2, characterized in that: an inner cavity is formed in the offshore platform (1), and an air bag is arranged in the inner cavity of the offshore platform and is made of airtight materials.

6. The platform for aerodynamic power generation using swells according to claim 1 or 2, characterized in that: the number of the pistons (7) fixed at the upper end of the piston rod (3) is two, and lubricating oil (16) is stored above each piston.

7. The platform for aerodynamic power generation using swells according to claim 1 or 2, characterized in that: an air increasing pump (26) and an air increasing pipe (27) are arranged on the offshore platform (1), and an air outlet of the air increasing pump is communicated with the air bag (5) through the air increasing pipe.

8. The platform for aerodynamic power generation using swells according to claim 1 or 2, characterized in that: the offshore platform is provided with a gas release pipe (28), one end of the gas release pipe is communicated with the gas bag, the other end of the gas release pipe is communicated with the outside, and the gas release pipe is provided with a gas release valve (29) for controlling the on-off state of the gas release pipe.