Centralized hydrogen production platform

Abstract

The centralized hydrogen production platform comprises an upper floating body and a lower floating body which are connected through stand columns, a living building is arranged at the head of the upper floating body, and a safety wall is arranged on the tail side of the living building; the upper floating body is provided with a hydrogen production system, a gas-liquid treatment and purification system, a high-pressure hydrogen storage system and an output system for outputting gas; a spiral strake is arranged outside the stand column, a heaving plate is arranged at the bottom of the stand column, and a ballast water dynamic load adjusting system is arranged in the stand column and the lower floating body. And an anchor chain for limiting is connected to the joint of the upper floating body and the upright post. According to the centralized hydrogen production platform, a series of work such as water electrolysis hydrogen production, hydrogen storage and output can be completed on the platform, the hydrogen production efficiency and the energy utilization rate are improved, meanwhile, multiple devices for reducing platform movement and anti-explosion facilities are arranged, the stability of the platform on the sea is guaranteed, and the safety of hydrogen production work is guaranteed.

Description

Technical Field

[0001] The present invention relates to an offshore platform device, in particular to a centralized hydrogen production platform, and belongs to the technical field of ship and ocean engineering. Background Art

[0002] The global energy system is gradually transitioning from a traditional system dominated by fossil fuels to one that is efficient, renewable, and low-carbon. Offshore wind power and hydrogen production are among the most promising green energy sources of the future. Offshore wind power, with its advantages such as abundant and stable wind energy resources and high power generation efficiency, is attracting increasing attention. With continuous technological advancements and increasing market demand, the development and iteration of water electrolysis hydrogen production equipment is accelerating, and costs are gradually decreasing. In particular, with the declining cost of renewable energy generation, such as wind power, water electrolysis hydrogen production is expected to become one of the mainstream hydrogen production methods in the future.

[0003] Offshore hydrogen production technology, originating from land-based hydrogen production, is relatively mature. Trials began in 2010 using offshore platforms as the primary method for offshore hydrogen production, achieving breakthrough progress. Hydrogen production platforms are generally classified into two types: fixed and floating. Fixed platforms are limited by water depth and cost, making them impractical for use in medium or higher water depths. This land-based hydrogen production model is difficult to scale to deep waters. Deepwater environments are harsh, and floating structures subject to wave action will experience large, highly nonlinear swaying movements, which can easily lead to gas leaks and explosions, rendering offshore hydrogen production equipment incapable of meeting operational requirements. Therefore, providing a stable and safe offshore hydrogen production environment is a pressing issue. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: how to design an effective overall layout scheme for a centralized hydrogen production platform to solve the current problem of offshore applicability of hydrogen production equipment under the conditions of harsh offshore environmental conditions, large motion response of floating platforms, and serious restrictions on the offshore applicability of hydrogen production equipment.

[0005] In order to solve the above problems, the present invention provides a centralized hydrogen production platform, which includes an upper floating body and a lower floating body connected by columns, the living building is arranged at the first position on the upper floating body, and a safety wall is provided on the tail side of the living building; the upper floating body is provided with a hydrogen production system, a gas-liquid treatment and purification system, a high-pressure hydrogen storage system and an external transmission system for outputting gas; the outside of the column is provided with a spiral column plate, the bottom is provided with a heave plate, and the column and the lower floating body are provided with a ballast water dynamic load adjustment system; the connection between the upper floating body and the column is connected to the positioning anchor by an anchor chain.

[0006] Preferably, the upper floating body is box-shaped with a length-to-width ratio of 0.8 to 1.2; the length of the upper floating body is arranged along the fore-aft direction, and both sides in the width direction are raised at an angle of 5° to 15°.

[0007] Preferably, the upper buoy is provided with two decks, the gas-liquid processing and purification system is arranged on both sides of the two decks, the hydrogen production system is arranged in the middle of the first deck, and the high-pressure hydrogen storage system is arranged in the middle of the second deck.

[0008] Preferably, four columns are provided between the upper floating body and the lower floating body in a 2×2 arrangement, and the first and last pairs of columns are arranged in an outward-facing "X" structure, with the inflection point located above the waterline, so as to increase the inertia radius of the platform, improve stability, and reduce the amplitude of movement; the spiral strakes are provided in the area below the inflection point of the column to reduce the impact of eddy currents on the columns; the ballast water dynamic load adjustment system in the column is arranged in an area symmetrically distributed around the center of the centralized hydrogen production platform to ensure that the columns have smaller changes in buoyancy when subjected to flows in different directions, and the arrangement area is the area where the eddy current changes the most during the movement of the lower floating body, and the load adjustment effect is the best.

[0009] Preferably, the heave plate is circular, with a diameter of 0.5 to 1.5 times the width of the column. The heave plate is connected to the column through a truss structure, which has active adjustment capabilities to reduce the amplitude of the platform's heave movement.

[0010] Preferably, the distance between the living building and the high-pressure hydrogen storage system is not less than 5m to avoid adverse effects of gas overflowing during hydrogen production and storage on people's lives.

[0011] Preferably, a safety wall separates the living building from dangerous facilities such as the high-pressure hydrogen storage system. The safety wall is a single-sided arc structure that is thin in the middle and thick on both sides. The minimum thickness is d and the maximum thickness D is 2.5d to 3.5d, so as to guide the direction of gas flow and protect the safety of personnel in the first living area.

[0012] Preferably, a positioning mooring tension monitoring system for real-time monitoring of anchor chain tension is provided on the outer sides of the upper and lower buoyant bodies. When the tension of each anchor chain reaches 90% of the limit value, the detection system alarms and quickly transmits the signal to the platform.

[0013] More preferably, the positioning mooring tension monitoring system includes a tension monitoring system for real-time monitoring of the anchor chain tension, a chain hoist provided on the upper floating body, and fairleads provided on the column and the lower floating body, and the anchor chain passes through the chain hoist and the two fairleads in sequence.

[0014] More preferably, the ballast water dynamic load adjustment system evaluates the optimal weight distribution strategy based on the tension signal of the anchor chain transmitted by the positioning mooring tension monitoring system, and adjusts the ballast water in the column and the lower buoy in real time through the circulation pipeline, so that the tension of each anchor chain is controlled within a safe range and does not exceed 90% of the limit value; at the same time, when the weight of the hull changes locally, such as the hydrogen in the high-pressure hydrogen storage tank is transmitted to the outside, causing the center of gravity of the platform to change, or the external environmental load causes the buoyancy of the platform to change, the ballast water dynamic load adjustment system automatically adjusts to ensure that the tension of each anchor chain also does not exceed 90% of the limit value.

[0015] The positioning mooring tension monitoring system and the ballast water dynamic load adjustment system achieve seamless signal and data connection. The positioning mooring tension monitoring system monitors the tension of the anchor chain at each location in real time and provides feedback to the platform. The ballast water dynamic load adjustment system adjusts the load accordingly, ensuring that the overall horizontal force on the platform is within a safe range while also guaranteeing the safety of the mooring system. This solves the problem of platform buoyancy stability and safe external transmission in complex sea conditions.

[0016] The centralized hydrogen production platform provided by the present invention can complete a series of tasks such as hydrogen production by electrolysis of water, hydrogen storage, and external transmission on the platform, thereby improving hydrogen production efficiency and energy utilization. At the same time, it is equipped with a variety of settings to reduce platform movement and explosion-proof facilities to ensure the stability of the platform at sea and ensure the safety of hydrogen production work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a rear view of the centralized hydrogen production platform provided by the present invention;

[0018] Figure 2 for Figure 1 Side view of

[0019] Figure 3 for Figure 2 A top view of

[0020] Figure 4 The layout plan of the first deck of the floating body;

[0021] Figure 5 This is the layout of the second deck of the upper buoy;

[0022] Figure 6 This is a top view of the column layout;

[0023] Figure 7 This is a top view of the lower floating body. DETAILED DESCRIPTION

[0024] To make the present invention more clearly understood, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0025] The present invention provides a centralized hydrogen production platform, which includes an upper floating body 1 and a lower floating body 5 connected by a column 4, a living building 2 is arranged at the first position on the upper floating body 1, and a safety wall 3 is provided on the tail side of the living building 2; the upper floating body 1 is provided with a hydrogen production system 10, a gas-liquid treatment and purification system 11, a high-pressure hydrogen storage system 12 and an external transmission system 8 for outputting gas; the outside of the column 4 is provided with a spiral column plate 6, the bottom is provided with a heave plate 7, and the column 4 and the lower floating body 5 are provided with a ballast water dynamic load adjustment system 13; the connection between the upper floating body 1 and the column 4 is connected to the positioning anchor 9-4 through an anchor chain 9-3.

[0026] The floating body 1 is box-shaped with a length-to-width ratio of 0.8 to 1.2. The length of the floating body 1 is arranged along the fore-aft direction, and both sides in the width direction are raised at an angle of 5° to 15°.

[0027] The upper buoy 1 is provided with two decks, the gas-liquid processing and purification system 11 is arranged on both sides of the two decks, the hydrogen production system 10 is arranged in the middle of the first deck, and the high-pressure hydrogen storage system 12 is arranged in the middle of the second deck.

[0028] Four columns 4 are provided between the upper buoyancy body 1 and the lower buoyancy body 5 in a 2×2 arrangement. The first and last pairs of columns 1 are arranged in an outward-facing "X" structure, with the inflection point located above the waterline. The spiral strakes 6 are provided in the area below the inflection point of the columns 4. The ballast water dynamic load adjustment system 13 in the columns 4 is arranged symmetrically around the center of the centralized hydrogen production platform.

[0029] The heave plate 7 is circular, and its diameter is 0.5 to 1.5 times the width of the column 4. The heave plate 7 is connected to the column 4 through a truss structure.

[0030] The distance between the living building 2 and the high-pressure hydrogen storage system 12 is not less than 5m.

[0031] The safety wall 3 is a single-sided arc structure that is thin in the middle and thick on both sides. The minimum thickness is d, and the maximum thickness D is 2.5d to 3.5d.

[0032] A positioning mooring tension monitoring system for real-time monitoring of anchor chain tension is installed on the outer sides of the upper buoy 1 and the lower buoy 5. The positioning mooring tension monitoring system includes a tension monitoring system for real-time monitoring of anchor chain tension, a chain hoist 9-1 installed on the upper buoy 1, and fairleads 9-2 installed on the column 4 and the lower buoy 5. The anchor chain 9-3 passes through the chain hoist 9-1 and the two fairleads 9-2 in sequence.

[0033] Example

[0034] like Figure 1-2 As shown in the embodiment of the present invention, the upper floating body 1 is box-shaped, with an aspect ratio of not more than 1.2 and not less than 0.8. The angle of the upper floating body raised along the width direction is not more than 15° and not less than 5°.

[0035] like Figure 2-5 As shown in , in an embodiment of the present invention, the floating body 1 is provided with a positioning mooring tension monitoring system, a hydrogen production system 10 , a gas-liquid processing and purification system 11 , and a high-pressure hydrogen storage system 12 .

[0036] like Figure 2 As shown in , in an embodiment of the present invention, the positioning mooring tension monitoring system can monitor the anchor chain tension in real time. When the tension of each anchor chain reaches 90% of the limit value, the detection system alarms and quickly transmits the signal to the platform.

[0037] like Figure 1-2 As shown in , in an embodiment of the present invention, the columns 4 are arranged in an outward-facing "X" shape, with the turning point located above the waterline, which can increase the inertia radius of the platform, improve stability, and reduce the range of motion.

[0038] like Figure 1-2 As shown in , in an embodiment of the present invention, spiral strakes 6 are provided outside the column 4 and distributed in the area below the column inflection point to reduce the impact of eddy current on the column.

[0039] like Figure 6 As shown in , in an embodiment of the present invention, a ballast water dynamic load adjustment system 13 is provided in the column 4, and the arrangement area is centrally symmetrically distributed, which can ensure that the column is less disturbed by the flow.

[0040] like Figure 1-5 As shown in , in an embodiment of the present invention, a heave plate 7 is provided below the column 4. The heave plate 7 is circular in shape, with a diameter not less than 0.5 times the column width and not more than 1.5 times the column width. The heave plate 7 is connected to the column through a truss structure and has active adjustment capability to reduce the amplitude of the platform heave movement.

[0041] like Figure 7 As shown in , in an embodiment of the present invention, a ballast water dynamic load adjustment system 13 is provided in the lower floating body 5, and the arrangement area is the area where the vortex changes the most during the movement of the lower floating body, and the load adjustment effect is the best.

[0042] like Figure 6-7 As shown in , in an embodiment of the present invention, the ballast water dynamic load adjustment system 13 evaluates the optimal weight distribution strategy based on the tension signal of the anchor chain 9-3 transmitted by the positioning mooring tension monitoring system. It then adjusts the ballast water in the upright column and lower buoy to a reasonable position in real time via the circulation pipeline, keeping the tension of each anchor chain within a safe range and not exceeding 90% of the limit value. Furthermore, when the hull weight changes locally, such as when the center of gravity of the platform changes due to the transfer of hydrogen from the high-pressure hydrogen storage tank, or when the platform's buoyancy changes due to external environmental loads, the ballast water dynamic load adjustment system 13 automatically adjusts to ensure that the tension of each anchor chain 9-3 also does not exceed the limit value of 90%.

[0043] like Figure 1-3 As shown in , in an embodiment of the present invention, the living building 2 of the centralized hydrogen production platform is arranged at the head of the platform, and the high-pressure hydrogen storage system 12 is arranged in the middle of the platform. The distance between the two is not less than 5m to avoid the gas overflowed during the hydrogen production and storage process from adversely affecting the lives of personnel.

[0044] like Figure 1-3 As shown in , in an embodiment of the present invention, the centralized hydrogen production platform is equipped with a safety wall 3, primarily composed of steel plates, fireproof panels, explosion-proof panels, and other materials. This wall separates the living building 2 from hazardous facilities such as the high-pressure hydrogen storage system 12. Safety wall 3 is a single-sided arc with a minimum thickness of d and a maximum thickness of no less than 2.5d and no more than 3.5d. It guides gas flow, cushions the energy impact caused by explosions, and protects personnel in the front living area.

[0045] like Figure 2 As shown in , in an embodiment of the present invention, the centralized hydrogen production platform is provided with a mooring tension monitoring system, which consists of a chain hoist 9-1, a fairlead 9-2, an anchor chain 9-3, a positioning anchor 9-4 and a tension monitoring system.

[0046] like Figure 2 and 6 As shown in Figure 7, in an embodiment of the present invention, the centralized hydrogen production platform's positioning mooring tension monitoring system and the ballast water dynamic load adjustment system 13 achieve seamless signal and data connection. The platform is equipped with a 12-point tensioned anchor positioning system. The positioning mooring tension monitoring system can monitor the tension of the anchor chain at each position in real time and feedback it to the platform. The ballast water dynamic load adjustment system adjusts the load according to the tension of the anchor chain at each position, ensuring that the overall horizontal force of the platform is controlled within a safe range while ensuring the safety of the mooring system. This solves the problem of platform floating stability in complex sea conditions and achieving safe external transmission.

Claims

1. A centralized hydrogen production platform, characterized in that: The invention comprises an upper floating body (1) and a lower floating body (5) connected by a column (4); a living building (2) is arranged at the first position on the upper floating body (1); and a safety wall (3) is provided at the tail side of the living building (2); the upper floating body (1) is provided with a hydrogen production system (10), a gas-liquid treatment and purification system (11), a high-pressure hydrogen storage system (12), and an external transmission system (8) for outputting gas; a spiral column (6) is provided on the outside of the column (4), and a heave plate (7) is provided on the bottom; a ballast water dynamic load adjustment system (13) is provided inside the column (4) and the lower floating body (5); and the connection between the upper floating body (1) and the column (4) is connected to a positioning anchor (9-4) through an anchor chain (9-3).

2. The centralized hydrogen production platform according to claim 1, characterized in that: The upper floating body (1) is box-shaped, with a length-to-width ratio of 0.8 to 1.2; the length of the upper floating body (1) is arranged along the fore-aft direction, and both sides in the width direction are raised, with the raised angle being 5° to 15°.

3. The centralized hydrogen production platform according to claim 1, characterized in that: The upper buoy (1) is provided with two decks, the gas-liquid processing and purification system (11) is provided on both sides of the two decks, the hydrogen production system (10) is provided in the middle of the first deck, and the high-pressure hydrogen storage system (12) is provided in the middle of the second deck.

4. The centralized hydrogen production platform according to claim 1, characterized in that: Four columns (4) are provided between the upper buoyancy body (1) and the lower buoyancy body (5), and are arranged in a 2×2 pattern. The first and last pairs of columns (1) are arranged in an outward-facing "X" structure, with the inflection point located above the waterline. The spiral strakes (6) are provided in an area below the inflection point of the columns (4). The ballast water dynamic load adjustment system (13) in the columns (4) is arranged in an area symmetrically distributed around the center of the centralized hydrogen production platform.

5. The centralized hydrogen production platform according to claim 1, characterized in that: The heave plate (7) is circular, and its diameter is 0.5 to 1.5 times the width of the column (4). The heave plate (7) and the column (4) are connected via a truss structure.

6. The centralized hydrogen production platform according to claim 1, characterized in that: The distance between the living building (2) and the high-pressure hydrogen storage system (12) is not less than 5m.

7. The centralized hydrogen production platform according to claim 1, characterized in that: The safety wall (3) is a single-sided arc structure that is thin in the middle and thick on both sides, with the minimum thickness being d and the maximum thickness D being 2.5d to 3.5d.

8. The centralized hydrogen production platform according to claim 1, characterized in that: A positioning mooring tension monitoring system for real-time monitoring of anchor chain tension is provided on the outer sides of the upper floating body (1) and the lower floating body (5).

9. The centralized hydrogen production platform according to claim 8, characterized in that: The positioning mooring tension monitoring system comprises a tension monitoring system for real-time monitoring of anchor chain tension, a chain hoist (9-1) provided on an upper buoy (1), and fairleads (9-2) provided on a column (4) and a lower buoy (5); the anchor chain (9-3) passes through the chain hoist (9-1) and the two fairleads (9-2) in sequence.

10. The centralized hydrogen production platform according to claim 8 or 9, characterized in that: The ballast water dynamic load adjustment system (13) evaluates and obtains the best weight distribution strategy based on the tension signal of the anchor chain (9-3) transmitted by the positioning mooring tension monitoring system, and adjusts the ballast water in the column (4) and the lower floating body (5) in real time through the circulation pipeline, so that the tension of each anchor chain (9-3) is controlled within a safe range and does not exceed 90% of the limit value; at the same time, when the weight of the hull changes locally, causing the center of gravity of the platform to change, or the external environmental load causes the floating state of the platform to change, the ballast water dynamic load adjustment system automatically adjusts to ensure that the tension of each anchor chain also does not exceed 90% of the limit value.

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