Sea water desalination device for offshore hydrogen production
By employing a combination of external float rings, follow-up springs, and metal inner rings in the offshore hydrogen production unit, the problem of easy damage to seawater transport pipelines has been solved, achieving efficient seawater transport and reduced maintenance costs.
Patent Information
- Application Number
- CN202520427402.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-12
AI Technical Summary
During the offshore hydrogen production process, seawater pipelines are susceptible to damage from wave impacts, current erosion, and marine organism attachment, which can affect the normal operation of seawater desalination and hydrogen production processes.
A seawater desalination device for offshore hydrogen production was designed, which adopts a combination structure of an external float ring, a follow-up spring, a metal inner ring, and a serrated contact surface. The external float ring scrapes away impurities in the pipeline as it moves with the waves, and the metal inner ring generates a magnetic field when energized to adjust the contact state and prevent marine organisms from attaching. The pipeline is also protected by anti-collision buffer balls and anti-collision plates.
It effectively prevents marine organisms from attaching, reduces pipeline damage, improves seawater transportation efficiency, lowers maintenance costs, and enhances pipeline safety in complex marine environments.
Smart Images

Figure CN223936245U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a seawater desalination device, in particular to a seawater desalination device for offshore hydrogen production applied to the field of offshore equipment. BACKGROUND
[0002] With the continuous growth of global demand for clean energy, offshore hydrogen production, as a highly potential energy development method, is gradually receiving widespread attention. Hydrogen, as a clean, efficient and sustainable energy carrier, has only water as its combustion product and does not pollute the environment, which can effectively assist global energy transformation and reduce dependence on traditional fossil energy. Offshore areas have abundant wind energy resources and vast space, providing unique conditions for large-scale offshore hydrogen production.
[0003] Chinese patent CN216994783U specification discloses a floating wind power hydrogen production device, relating to the field of new energy technology, specifically a floating wind turbine hydrogen production integrated device, including a floating foundation arranged on the floating wind turbine, and a seawater desalination device and an electrolytic water hydrogen production device on the floating foundation. The floating wind turbine hydrogen production device, through the cooperation of the wind turbine generator, the floating foundation, the seawater desalination device and the electrolytic water hydrogen production device, can realize the organic combination of the wind turbine generator, the hydrogen production device and the seawater desalination device, achieve the integrated configuration of deep-sea floating wind power hydrogen production technology, effectively utilize offshore wind energy and fully utilize marine resources.
[0004] During offshore hydrogen production, seawater desalination is a key link. The pipeline for transporting seawater is prone to be affected by problems such as wave impact, current erosion and marine organism attachment in seawater. Wave impact may cause pipeline damage, affecting normal seawater transportation and even the overall process of seawater desalination and hydrogen production. Utility model content
[0005] In view of the above prior art, the technical problem to be solved by the utility model is that during offshore hydrogen production, seawater desalination is a key link. The pipeline for transporting seawater is prone to be affected by problems such as wave impact, current erosion and marine organism attachment in seawater. Wave impact may cause pipeline damage, affecting normal seawater transportation and even the overall process of seawater desalination and hydrogen production.
[0006] To address the aforementioned problems, this utility model provides a seawater desalination device for offshore hydrogen production, comprising an offshore floating platform. A seawater treatment chamber is fixedly connected to the upper end of the floating platform. A seawater input pipe is fixedly connected to the right side of the seawater treatment chamber, extending below the sea surface. Multiple external float rings are arranged on the outer side of the seawater input pipe. Two follower springs are fixedly connected to the lower end of the external float rings, arranged symmetrically on both sides. An external material transfer ring is fixedly connected to the lower end of the two follower springs, located outside the seawater input pipe. A metal inner ring is fixedly connected to the inner wall of the external material transfer ring. Multiple connecting floats are fixedly connected to the inner wall of the metal inner ring, arranged equidistantly in a ring. A follower small arc ring is fixedly connected to the end of the connecting float away from the metal inner ring.
[0007] In the aforementioned seawater desalination device for offshore hydrogen production, multiple external float rings are installed on the outside of the seawater input pipe in this scheme. The external material transfer ring is connected to the external float ring through a follower spring. It can sway outside the seawater input pipe with the wave fluctuations. Its serrated contact surface can scrape off impurities from the outer wall of the pipe, prevent marine organisms from attaching, and ensure the efficiency of seawater transportation.
[0008] As a further improvement of this application, the offshore floating platform is externally fixedly connected to multiple foundation piles arranged in a triangular configuration, with wind power equipment installed on the upper part of the foundation pile on the left side.
[0009] As a further improvement to this application, the lower end of the foundation pile is fixedly connected to a limiting chain, and the limiting chain is connected to the seabed.
[0010] As a further improvement of this application, multiple external float rings are arranged at equal intervals from top to bottom, and a clamping ring is provided in the middle of the external float rings.
[0011] As another improvement of this application, the offshore floating platform is located on the sea surface, and a hydrogen production tank that cooperates with the seawater treatment tank is fixedly connected to the upper end of the offshore floating platform.
[0012] As a further improvement to this application, the end of the follower small arc ring away from the connecting float rope is fixedly connected to a sawtooth contact concave-convex surface, and multiple anti-collision buffer balls are fixedly connected to the outer side of the outer float ring sleeve.
[0013] As a further improvement to this application, the corresponding multiple anti-collision buffer balls are fixedly connected to an external anti-collision plate at the end away from the external float sleeve, and the multiple external anti-collision plates are arranged in a ring at equal intervals on the outside of the external float sleeve.
[0014] In summary, the multiple external floating ring sleeves arranged outside the seawater input pipeline in the scheme, in cooperation with the hoop clasp, not only can resist the sea wave invasion and protect the pipeline, but also can buffer the sea current impact force to a certain extent. The external material moving ring is connected with the external floating ring sleeve through the follow-up spring piece and can swing outside the seawater input pipeline with the sea wave fluctuation. The sawtooth contact concave-convex surface can scrape off the impurities on the outer wall of the pipeline to prevent marine organisms from adhering and ensure the seawater conveying efficiency. Moreover, the design that the metal inner ring layer is connected with the floating rope and the follow-up small arc-shaped ring through power control can flexibly adjust the contact state of the sawtooth contact concave-convex surface and the pipeline, reduce the scratching force, realize the efficient antifouling self-cleaning function, reduce the artificial maintenance cost, and the anti-collision structure composed of the anti-collision buffer small ball outside the external floating ring sleeve and the external anti-collision sheet can effectively cope with the external collision and improve the safety of the pipeline in the complex marine environment. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is a side view of the offshore floating platform of the first embodiment of the present application;
[0016] Figure 2 is an enlarged view of the offshore floating platform of the first embodiment of the present application;
[0017] Figure 3 is an enlarged view of the seawater input pipeline of the first embodiment of the present application;
[0018] Figure 4 is a sectional view of the offshore floating platform of the first embodiment of the present application; Figure 3 is an enlarged view of the seawater input pipeline of the first embodiment of the present application;
[0019] Figure 5 is a top view of the external floating ring sleeve of the second embodiment of the present application;
[0020] Figure 6 is a top view of the external material moving ring of the first embodiment of the present application;
[0021] Figure 7 is a sectional view of the external material moving ring of the first embodiment of the present application; Figure 6
[0022] EXPLANATION OF REFERENCE NUMBERS IN DRAWINGS
[0023] 1, foundation pile platform; 2, offshore floating platform; 3, wind power equipment; 4, seawater treatment bin; 5, limiting lock chain; 6, seawater input pipeline; 7, external floating ring sleeve; 8, hoop clasp; 9, follow-up spring piece; 10, external material moving ring; 11, metal inner ring layer; 12, connecting floating rope; 13, follow-up small arc-shaped ring; 14, sawtooth contact concave-convex surface; 15, hydrogen production bin; 16, anti-collision buffer small ball; 17, external anti-collision sheet. DETAILED DESCRIPTION
[0024] Two embodiments of the application will be described in detail below with reference to the accompanying drawings.
[0025] First embodiment:
[0026] Figures 1-4 、 Figures 6-7 A sea water desalination device for offshore hydrogen production is shown, comprising a sea platform 2, the upper end of the sea platform 2 is fixedly connected with a sea water treatment bin 4, the right side of the sea water treatment bin 4 is fixedly connected with a sea water input pipeline 6, the sea water input pipeline 6 extends below the sea surface, a plurality of external floating ring sleeves 7 are arranged on the outer side of the sea water input pipeline 6, two follow-up spring members 9 are fixedly connected to the lower end of the external floating ring sleeves 7, the two follow-up spring members 9 are symmetrically arranged left and right, an external material moving ring 10 is fixedly connected to the lower end of the two follow-up spring members 9, the external material moving ring 10 is located on the outer side of the sea water input pipeline 6, a metal inner ring layer 11 is fixedly connected to the inner side wall of the external material moving ring 10, a plurality of connecting floating ropes 12 are fixedly connected to the inner wall of the metal inner ring layer 11, the plurality of connecting floating ropes 12 are arranged in a ring shape at equal intervals, and a follow-up small arc-shaped ring 13 is fixedly connected to the end of the connecting floating rope 12 away from the metal inner ring layer 11.
[0027] Figures 1-4 、 Figure 6 A plurality of foundation pile platforms 1 arranged in a triangular state are fixedly connected to the outside of the sea platform 2, a wind power equipment 3 is installed at the upper end of the foundation pile platform 1 on the left side, a limiting chain 5 is fixedly connected to the lower end of the foundation pile platform 1, the limiting chain 5 is connected to the seabed layer, the external floating ring sleeves 7 are arranged at equal intervals from top to bottom, a hoop clamp 8 is arranged in the middle of the external floating ring sleeve 7, the sea platform 2 is located on the sea surface, a hydrogen production bin 15 cooperating with the sea water treatment bin 4 is fixedly connected to the upper end of the sea platform 2, and a sawtooth contact concave-convex surface 14 is fixedly connected to the end of the follow-up small arc-shaped ring 13 away from the connecting floating rope 12.
[0028] Figures 1-4 、 Figures 6-7 In this scheme, the sea platform 2 serves as the core bearing platform, and a plurality of foundation pile platforms 1 arranged in a triangular state are fixedly connected to the outside of the sea platform 2 through a welding process. This triangular layout can effectively enhance the stability of the entire device in the marine environment, resist external forces such as wind and waves, and be reliably connected to the seabed layer through the limiting chain 5. The limiting chain 5 is made of a corrosion-resistant and high-strength alloy material, one end is connected to a specially designed anchor at the lower end of the foundation pile platform 1, and the other end is firmly anchored to the anchor point previously set on the seabed layer, thereby ensuring that the entire device can maintain a relatively stable position under different sea conditions. A wind power equipment 3 is installed at the upper end of the foundation pile platform 1 on the left side, which includes a wind turbine, a transmission device, and a control system, etc. The wind turbine converts wind energy into electrical energy, which is transmitted to the power distribution system of the sea platform 2 through the matching power transmission line, providing sustainable energy support for the operation of the entire device.
[0029] A seawater treatment tank 4 is fixedly connected to the upper end of the floating platform 2. The seawater treatment tank 4 adopts a modular design and integrates various seawater treatment units to purify and desalinate seawater. A seawater input pipe 6 is fixedly connected to the right side of the seawater treatment tank 4 through a sealed connection. The seawater input pipe 6 is made of a material resistant to seawater corrosion. These external float rings 7 are equidistantly arranged from top to bottom and are tightly wrapped around the outside of the seawater input pipe 6 by clamps 8. The clamps 8 are made of a material with a certain degree of elasticity and strength, which can not only ensure the relative position stability between the external float rings 7 and the seawater input pipe 6, but also adapt to the slight displacement of the pipe under the action of ocean currents. A hydrogen production tank 15 that cooperates with the seawater treatment tank 4 is also fixedly connected to the upper end of the floating platform 2. The hydrogen production tank 15 is equipped with various equipment required for hydrogen production. Fresh water treated by the seawater treatment tank 4 is transported to the hydrogen production tank 15 for hydrogen production operations.
[0030] Two follower springs 9 are fixedly connected to the lower end of the outer float sleeve 7. The two follower springs 9 are symmetrically arranged left and right. The follower springs 9 are made of high-strength spring steel, the inner metal ring 11 is made of a metal material with good electrical conductivity, and the connecting float rope 12 is made of lightweight and high-strength fiber material. When the seawater input pipe 6 is shaken by waves in the seawater, the outer float sleeve 7 shakes accordingly. This, through the follower springs 9, causes the outer material transfer ring 10 to sway with the waves outside the seawater input pipe 6. At this time, the saw... The toothed contact surface 14 scrapes against the outside of the seawater inlet pipe 6, effectively preventing impurities from adhering to the outer wall of the pipe. At the same time, when the inner metal ring 11 is energized, a magnetic field is generated, which compresses the connecting float 12 under the action of the magnetic field, thereby causing the follower small arc ring 13 and the toothed contact surface 14 to separate from the outside of the seawater inlet pipe 6, reducing the scraping force. When the inner metal ring 11 is de-energized, the connecting float 12 returns to its original state, and the toothed contact surface 14 re-engages with the outside of the seawater inlet pipe 6 to scrape and clean.
[0031] Second implementation method:
[0032] Figure 5This invention illustrates a seawater desalination device for offshore hydrogen production. Multiple anti-collision buffer balls 16 are fixedly connected to the outer side of an external float sleeve 7. Correspondingly, external anti-collision plates 17 are fixedly connected to the ends of the multiple anti-collision buffer balls 16 furthest from the external float sleeve 7. The multiple external anti-collision plates 17 are arranged in a ring-like, equidistant pattern on the outer side of the external float sleeve 7. The anti-collision buffer balls 16 are made of materials with good elasticity and cushioning performance. The external anti-collision plates 17 are made of high-strength and corrosion-resistant materials, such as stainless steel or carbon fiber composite materials. When a foreign object collides with the seawater input pipe 6, the external anti-collision plates 17 first contact the foreign object. The impact force is buffered and dispersed by the anti-collision buffer balls 16, thereby protecting the external float sleeve 7 and the seawater input pipe 6, and improving the overall anti-collision performance between the external float sleeve 7 and the seawater input pipe 6.
[0033] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.
Claims
1. A seawater desalination device for offshore hydrogen production, characterized in that: The system includes a floating platform (2), with a seawater treatment tank (4) fixedly connected to its upper end. A seawater input pipe (6) is fixedly connected to the right side of the seawater treatment tank (4). The seawater input pipe (6) extends below the sea surface. Multiple external float rings (7) are provided on the outside of the seawater input pipe (6). Two follower springs (9) are fixedly connected to the lower end of the external float rings (7). The two follower springs (9) are arranged symmetrically on the left and right sides. The lower end of the spring (9) is fixedly connected to an external material transfer ring (10), which is located outside the seawater input pipe (6). The inner wall of the external material transfer ring (10) is fixedly connected to a metal inner ring layer (11), and the inner wall of the metal inner ring layer (11) is fixedly connected to multiple connecting floats (12). The multiple connecting floats (12) are arranged in a ring at equal intervals. The end of the connecting float (12) away from the metal inner ring layer (11) is fixedly connected to a follower small arc ring (13).
2. The seawater desalination device for offshore hydrogen production according to claim 1, characterized in that: The offshore floating platform (2) is externally fixedly connected to multiple foundation piles (1) arranged in a triangular configuration. Wind power equipment (3) is installed on the upper end of the foundation pile (1) located on the left side.
3. A seawater desalination device for offshore hydrogen production according to claim 2, characterized in that: The lower end of the foundation pile (1) is fixedly connected to a limiting chain (5), and the limiting chain (5) is connected to the seabed.
4. A seawater desalination device for offshore hydrogen production according to claim 1, characterized in that: Multiple external float sleeves (7) are arranged at equal intervals from top to bottom, and a clamping ring (8) is provided in the middle of the external float sleeve (7).
5. A seawater desalination device for offshore hydrogen production according to claim 1, characterized in that: The floating platform (2) is located on the sea surface, and the upper end of the floating platform (2) is fixedly connected to a hydrogen production chamber (15) that cooperates with the seawater treatment chamber (4).
6. A seawater desalination device for offshore hydrogen production according to claim 1, characterized in that: The end of the follower small arc ring (13) away from the connecting float rope (12) is fixedly connected to a sawtooth contact concave-convex surface (14), and the outer side of the outer float ring sleeve (7) is fixedly connected to a plurality of anti-collision buffer balls (16).
7. A seawater desalination device for offshore hydrogen production according to claim 6, characterized in that: The corresponding anti-collision buffer balls (16) are fixedly connected to an external anti-collision piece (17) at one end away from the external float sleeve (7). The multiple external anti-collision pieces (17) are arranged in a ring at equal intervals on the outside of the external float sleeve (7).
Citation Information
Patent Citations
Floating fan hydrogen production integrated device
CN216994783U