Methane generation device for exploiting exposed combustible ice deposits on the seabed surface and related wind power generation method

Abstract

A method of wind power generation related to a methane generation device for exploiting exposed combustible ice deposits on the seabed surface: It is composed of a rigid pipe (4) with a sealed bottom inserted from the sea level into the seabed rock formation. Requirements: Its diameter should be able to accommodate a deep submersible pump (B) positioned at its bottom sealed position. Its lower part is provided with a combustible ice fragment feed port (7) that can be connected to the end position of an underwater conveyor belt (D). The method of generating electricity using a kite: Above the water surface at the location of the methane generation device, a high-power wind turbine suspended under a kite is positioned at a high altitude through three ropes forming the three vertices of a triangular horizontal position to provide free power supply. The height at which the kite suspends the wind turbine is: the height at which, according to meteorological data, the kite at this height will never fall, that is, the height position where there is an obvious speed difference between the air flow speed driven by the earth's gravitational force and the earth's rotation speed within a certain height range where there is always air.

Description

Technical Field

[0001] The present invention is a wind power generation method involved in the exploitation of a methane generating device of a combustible ice deposit exposed on the seabed surface. Background Art

[0002] With the huge consumption of natural resources, mankind has been facing a huge crisis of natural resources since the beginning of the 21st century. As a major energy consumer, China's annual crude oil imports have exceeded 100 million tons, and the output of domestic onshore oil and gas fields has barely remained stable. Experts estimate that it is difficult to have a major breakthrough in the short term. Natural gas hydrate, also known as combustible ice, is an alternative energy source that is being favored by countries around the world, especially developed countries.

[0003] Take the natural gas hydrates formed on the seabed as an example: when the ambient temperature is between 1°C and 20°C, as long as the water depth is 300 meters, that is, the pressure reaches 30 atmospheres, natural gas hydrates, i.e., combustible ice deposits, will be formed; and if the environment is higher than the above temperature or / and lower than the above pressure, the natural gas hydrates will be caused to decompose into methane and water.

[0004] 1. The world's reserves of methane hydrate are twice as much as those of other combustible minerals such as oil, which is enough for the global population to use for 1,000 years. Theoretically, 1m 3 Under standard conditions, saturated natural gas hydrate can release 164m 3 The combustion of natural gas hydrate only produces CO2 and H2O, which is a rare green and clean energy.

[0005] The seabed is rich in methane hydrate deposits. However, like other sea areas in the world, the methane hydrate deposits have not been mined. The main reason is that the mining cost of methane hydrate is very high, about $200 / m 3 .

[0006] So far, people have developed many "laboratory" methods, but they are all in the exploratory stage and it is difficult to enter the practical and large-scale commercial mining stage. Summary of the invention

[0007] The purpose of the present invention is to propose a method for generating wind power directly to the equipment that needs electricity when solving the problem of methane generation in the mining of exposed methane hydrate deposits on the seabed surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The structural principle of the methane generation device used for the fragments of seabed methane hydrate deposits is illustrated.

[0009] 1: Exhaust pipe; 2: Drain pipe; 3: Sealed methane collection chamber (also serves as a temporary working chamber for people to enter with oxygen cylinders); 4: Rigid pipe; 5: Flip-up seal cover; 6: Combustible ice fragments obtained from mining; 7: Inlet for combustible ice fragments; 8: Inverted cone-shaped bottom counterweight foundation; 9: Water supply booster valve (set to boost pressure for opening the seal cover); D: Deep water conveyor belt; B: Deep submersible pump; R: Microwave heater; W: Receiving net that can vertically lift and intercept other miscellaneous rock fragments; G: Flip-up seal chamber mechanism in the bottom machine room; Dashed arrow Indicates the flow direction of methane (gas); Solid arrow Indicates the flow direction of water. Specific implementation method

[0010] To achieve the above object of the present invention, the following technical solutions are proposed:

[0011] (1) The main structural features of the present invention are as follows:

[0012] It consists of at least one rigid pipe 4 inserted from the sea level and positioned in the body of the methane generation device in the seabed rock formation. The outer bottom surface of this body is provided with an inverted cone-shaped counterweight foundation 8 that can fit the joint position of the seabed rock formation. Inside the lower part of this body, a deep submersible pump B is positioned. Between the deep submersible pump B and the inlet 7, a receiving net W for miscellaneous rock fragments that can vertically rise to the sea level is provided. Above the inlet 7, a microwave heater R is provided. Above the microwave heater R, the flip-up seal chamber mechanism G of the bottom machine room is provided;

[0013] The inlet 7 is provided with a seal cover 5 that can be opened or closed by remote control flipping:

[0014] When the seal cover 5 is opened, the end of the inlet 7 can be non-connectively positioned and connected to the end of the external underwater conveyor belt D to accurately receive the combustible ice fragments 6 conveyed by the underwater conveyor belt D;

[0015] On the outside of the rigid pipe 4 below the water surface, an internal remote control water supply booster valve 9 is provided. Only when the internal water supply is boosted to be consistent with the external water pressure can the seal cover 5 be opened;

[0016] Above the deep submersible pump B, a drain pipe 2 is provided to externally discharge the internal accumulated water that can be automatically discharged by the deep submersible pump B at any time;

[0017] When the water body inside the rigid pipe 4 is evacuated by the deep submersible pump B to the outside, it will be indirectly affected by an atmospheric pressure in the atmospheric space above the water surface. The indirect influence method is:

[0018] To generate a methane collector 3 inside the rigid pipe 4 and finally output it for people's use through the exhaust pipe 1.

[0019] (2) Wind power generation method involved in the methane generation device:

[0020] Over the water surface where the methane generation device is located, a high-power wind turbine suspended under a kite is positioned at a high altitude by three ropes forming the three vertices of a triangular horizontal position, so as to provide free power supply.

Claims

1. A method of wind power generation related to a methane generation device for exploiting exposed combustible ice deposits on the seabed surface, Characterized in that: (1) The methane generation device structurally includes: A body composed of at least one rigid pipe (4) inserted from the sea level and positioned in the seabed rock formation. The outer bottom surface of the body is provided with a counterweight foundation (8) in an inverted cone shape that can fit with the joint position of the seabed rock formation. A deep submersible pump (B) is positioned in the lower part of the body; A debris collection net (W) that can vertically rise to the sea level is arranged between the deep submersible pump (B) and the feed inlet (7). A microwave heater (R) is arranged above the feed inlet (7), and a turning and sealing hatch mechanism (G) of the bottom machine room is arranged above the microwave heater (R); The feed inlet (7) is provided with a sealing cover (5) that can be opened or closed by remote control turning: When the sealing cover (5) is opened, the end of the feed inlet (7) can be non-connectively positioned and connected to the end of the external underwater conveyor belt (D) to accurately receive the combustible ice fragments (6) conveyed by the underwater conveyor belt (D); A remote control water supply boost valve (9) is arranged below the water surface on the outside of the rigid pipe (4). Only when the internal water supply is boosted and consistent with the external water pressure can the sealing cover (5) be opened; A drainage pipe (2) is arranged above the deep submersible pump (B) to discharge the internal accumulated water that can be automatically discharged by the deep submersible pump (B) at any time; (2) A method of wind power generation related to the methane generation device: In the air above the water surface where the methane generation device is located, a high-power wind turbine suspended under a kite is positioned at a high altitude by three ropes forming the three vertices of a triangular horizontal position to provide free power supply.

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