Ocean hydrostatic energy conversion device

By designing a marine hydrostatic energy conversion device, the L-shaped frame assembly, straight rod frame assembly and kinetic energy conversion assembly are used to efficiently convert the submarine hydrostatic energy into electrical energy and hydraulic mechanical work, solving the problem of low efficiency in the existing technology and achieving green and efficient energy conversion.

CN120027005APending Publication Date: 2025-05-23DONGGUAN HYDRAULIC FUTURE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510318595.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2025-05-23

AI Technical Summary

Technical Problem

In the prior art, hydrostatic energy in the deep ocean is difficult to be fully and effectively utilized, resulting in the efficiency of commercially used hydraulic energy conversion devices generally less than 35%.

Method used

A marine hydrostatic energy conversion device is designed, including an L-shaped frame assembly, a straight rod frame assembly, a carrier plate and a kinetic energy conversion assembly. The kinetic energy conversion assembly converts the marine hydrostatic energy into kinetic energy through a gear pump and an outer pipe, and is sent to the generator set through a confluence tube and a transmission tube.

Benefits of technology

It has achieved efficient conversion of subsea hydrostatic energy into electrical energy and hydraulic machinery to perform work, and the efficiency is improved without the need for electricity and other energy investment, so the converted energy is greener and avoids subsea pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an ocean hydrostatic energy conversion device which comprises four L-shaped frame assemblies, a straight rod frame assembly is spliced between every two adjacent L-shaped frame assemblies, bearing plates are fixedly connected to the inner sides of the L-shaped frame assemblies and the straight rod frame assemblies, and a kinetic energy conversion assembly is arranged in the middle of each bearing plate. The kinetic energy conversion assembly is used for converting ocean hydrostatic pressure energy, a deep well is fixedly connected between the multiple bearing plates, a drainage opening is formed in the top of the deep well, and a movable gate used for blocking the drainage opening is arranged at the topmost end of the deep well. Through overall structural cooperation, seabed hydrostatic pressure can be efficiently converted, supplied to the generator set for power generation and provided for hydraulic machinery to do work, electric power and other energy input is not needed during conversion, the converted energy is more environmentally friendly, and seabed pollution is avoided.
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Description

Technical Field

[0001] The invention relates to the technical field of marine energy conversion, and in particular to a marine hydrostatic energy conversion device based on fluid mechanics and mechanical transmission coupling. Background Art

[0002] The earth's surface is divided into vast bodies of water called oceans by continents. The central part of the ocean is called the ocean, and the edge is called the sea. The oceans connect to form a unified body of water. The ocean covers more than 70% of the earth's surface and is the main driving force of weather and climate. A slight fluctuation in ocean temperature may cause drastic changes in weather and climate around the world.

[0003] Among them, there is a large amount of hydrostatic energy in the deep sea. According to the 2022 Ocean Energy Report, the hydrostatic pressure at a depth of 2,000 meters can reach 20 MPa, but the efficiency of hydraulic energy conversion devices currently used in commercial applications is generally less than 35%. In the existing technology, due to the lack of hydrostatic energy conversion measures, it is difficult to fully and effectively utilize hydrostatic energy.

[0004] To this end, the present invention provides a marine hydrostatic energy conversion device to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a marine hydrostatic energy conversion device to solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a marine hydrostatic energy conversion device, comprising four L-shaped frame assemblies, wherein a straight rod frame assembly is spliced ​​between two adjacent L-shaped frame assemblies, the inner sides of the L-shaped frame assemblies and the straight rod frame assemblies are fixedly connected with a bearing plate, a kinetic energy conversion assembly is provided in the middle of each of the bearing plates, and the kinetic energy conversion assembly is used to convert marine hydrostatic energy, a deep-water well is fixedly connected between the plurality of bearing plates, and the vertical axis of the deep-water well is orthogonal to the seabed plane; a drainage port is provided at the top of the deep-water well, and a movable gate for blocking the drainage port is provided at the top of the deep-water well, the top of the inner side of the L-shaped frame assembly and the straight rod frame assembly are fixedly connected with a stabilization plate, and a lift is mounted on the bearing plate at one of the L-shaped frame assemblies.

[0007] Preferably, the kinetic energy conversion assembly includes a carrying shell, a positioning cover plate, a gear pump, a matching spur gear and an external lead pipe, the middle part of each of the carrying plates is fixedly connected to the carrying shell, the top of the carrying shell is fixedly connected to the positioning cover plate, the top of the positioning cover plate is fixedly connected to a plurality of gear pumps, and the liquid input end of each gear pump is connected to the inside of the carrying shell, the power input end of each gear pump is fixedly connected to the matching spur gear, the liquid output end of the gear pump is fixedly connected to the external lead pipe, the top of the positioning cover plate A confluence pipe A is fixedly connected to the middle part, and the end of the external guide pipe away from the gear pump is also connected to the confluence pipe A. A positioning ear is fixedly connected to the top of each of the supporting plates, and a confluence pipe B is passed between the multiple positioning ears. A liquid guide tube is fixedly connected to the outer side of the confluence pipe A, and the end of the liquid guide tube away from the confluence pipe A is also connected to the confluence pipe B. A stabilization frame is also fixedly connected to the supporting plate at one of the L-shaped frame assemblies, and a transmission pipe is fixedly connected to the inner side of the stabilization frame, and the bottom end of the transmission pipe is also connected to the confluence pipe B.

[0008] Preferably, the kinetic energy conversion assembly further comprises a transmission shaft A, a transmission impeller, a transmission spur gear A and a transmission shaft B. A plurality of side water inlets are provided at the bottom end of the outer side of the carrying shell. A side automatic door is provided at a position corresponding to the side water inlet on the outer side of the carrying shell. A bottom water inlet is provided at the bottom end of the carrying shell, and a bottom automatic door for blocking the bottom water inlet is provided at the bottom end of the carrying shell. The bottom end of the carrying shell is rotatably connected to the transmission shaft A, and the outer side of the transmission shaft A is fixedly connected to the transmission shaft A. Impeller, the outer side of the top end of the transmission shaft A is fixedly connected with a transmission spur gear A, the middle part of the positioning cover plate is vertically rotatably connected with a transmission shaft B, the top end of the transmission shaft B is fixedly connected with a transmission toothed disk, and each of the matching spur gears is meshed with the transmission toothed disk, and one end of the transmission shaft B located inside the carrying shell is fixedly connected with a transmission spur gear B, an acceleration impeller and a fixed impeller in sequence from bottom to top, and a speed change assembly is arranged in the middle of the inner side of the carrying shell, and the speed change assembly is used to transmit the kinetic energy of the transmission shaft A.

[0009] Preferably, the speed change assembly includes a linkage seat, a linkage shaft, an acceleration spur gear A and an acceleration spur gear B. The linkage seat is fixedly connected to the middle part of the inner side of the mounting shell, and the edge of the linkage seat is vertically rotatably connected to multiple linkage shafts. The bottom end of each linkage shaft is fixedly connected to the acceleration spur gear A, and the transmission spur gear A is also meshed and connected between the multiple acceleration spur gears A. The top end of each linkage shaft is fixedly connected to the acceleration spur gear B, and the transmission spur gear B is also meshed and connected between the multiple acceleration spur gears B.

[0010] Preferably, the L-shaped frame assembly is an "L"-shaped structure, and the straight rod frame assembly is a straight plate.

[0011] Preferably, a seawater inlet is provided in the middle of each of the straight rod frame assemblies, and the seawater inlet is located below the bearing plate, and an automatic gate and a filter A are provided at positions of the straight rod frame assemblies corresponding to the seawater inlet.

[0012] Preferably, a filter screen B is provided at the top of the deep water well, and the filter screen B is a conical structure.

[0013] Preferably, a plurality of stabilizing ears are fixedly connected to the bearing plate corresponding to the transmission tube path, and the transmission tube is also fixedly connected to the top of the stabilizing ears.

[0014] Beneficial Effects

[0015] The marine hydrostatic energy conversion device provided by the present invention can efficiently convert seabed hydrostatic pressure through overall structural coordination to supply power to the generator set and provide hydraulic machinery for work purposes, and no electricity or other energy input is required during the conversion, making the converted energy greener and avoiding seabed pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional axonometric assembly schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the connection structure of the L-shaped frame assembly and the straight rod frame assembly of the present invention.

[0018] Figure 3 It is a schematic diagram of the position structure of the bearing plate of the present invention;

[0019] Figure 4 It is a schematic diagram of the separation structure of the L-shaped frame assembly and the straight rod frame assembly of the present invention;

[0020] Figure 5 It is a schematic diagram of the assembly structure of the housing of the present invention;

[0021] Figure 6 is a bottom view of the bearing plate of the present invention;

[0022] Figure 7 is a schematic diagram of the filter screen A of the present invention;

[0023] Figure 8 It is a schematic diagram of the separation of the carrying housing and the positioning cover plate of the present invention;

[0024] Fig. 9 It is a schematic diagram of the connection structure between the transmission gear plate and the matching spur gear of the present invention;

[0025] Fig.10 It is a schematic structural diagram of the speed change assembly of the present invention;

[0026] Fig.11 It is a schematic diagram of the assembly of the present invention 09 and the submarine platform.

[0027] In the figure, 1, L-shaped frame assembly; 2, straight rod frame assembly; 3, bearing plate; 4, kinetic energy conversion assembly; 5, deep water well; 6, diversion port; 7, movable gate; 8, stabilizing plate; 9, elevator; 10, carrying shell; 11, positioning cover plate; 12, gear pump; 13, matching spur gear; 14, external guide pipe; 15, confluence pipe A; 16, positioning ear; 17, confluence pipe B; 18, stabilizing frame; 19, transmission pipe; 20, side water inlet; 21, side self 1. Moving door; 22. Bottom water inlet; 23. Bottom automatic door; 24. Transmission shaft A; 25. Transmission impeller; 26. Transmission spur gear A; 27. Transmission shaft B; 28. Transmission gear plate; 29. ​​Acceleration impeller; 30. Fixed impeller; 31. Transmission spur gear B; 32. Linkage shaft; 33. Acceleration spur gear A; 34. Acceleration spur gear B; 35. Seawater inlet; 36. Automatic gate; 37. Filter A; 38. Filter B; 39. Linkage seat. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] See also Figure 1-11 A marine hydrostatic energy conversion device comprises four L-shaped frame assemblies 1, wherein a straight rod frame assembly 2 is spliced ​​between two adjacent L-shaped frame assemblies 1, a bearing plate 3 is fixedly connected to the inner side of the L-shaped frame assembly 1 and the straight rod frame assembly 2, a kinetic energy conversion assembly 4 is arranged in the middle of each bearing plate 3, and the kinetic energy conversion assembly 4 is used to convert marine hydrostatic energy, a deep water well 5 is fixedly connected between the plurality of bearing plates 3, a drainage port 6 is opened at the top of the deep water well 5, and a movable gate 7 for blocking the drainage port 6 is arranged at the top of the deep water well 5, a stabilizing plate 8 is fixedly connected to the top of the inner side of the L-shaped frame assembly 1 and the straight rod frame assembly 2, and a lift 9 is mounted on the bearing plate 3 at one of the L-shaped frame assemblies 1.

[0031] See also Figure 1The L-shaped frame assembly 1 is an "L"-shaped structure, and the straight-bar frame assembly 2 is a straight plate. Through the structural characteristics of the L-shaped frame assembly 1, it can form an effective connection with the straight-bar frame assembly 2, and after the four straight-bar frame assemblies 2 are assembled, the whole can form a rectangular structure, and through the combined assembly of the L-shaped frame assembly 1 and the straight-bar frame assembly 2, the whole can be effectively transported by means of a ship.

[0032] In this embodiment, a seawater inlet 35 is provided in the middle of each straight rod frame assembly 2, and the seawater inlet 35 is located below the supporting plate 3. An automatic gate 36 and a filter net A37 are provided at a position of the straight rod frame assembly 2 corresponding to the seawater inlet 35. The seawater inlet 35 is provided so that seawater can enter the space formed between the L-shaped frame assembly 1, the straight rod frame assembly 2 and the supporting plate 3. In conjunction with the setting of the filter net A37, solid matter in the seawater can be blocked. In conjunction with the setting of the automatic gate 36, the seawater inlet 35 can be blocked when not in use to prevent continuous entry of seawater.

[0033] In this embodiment, a filter screen B38 is provided at the top of the deep-water well 5 . The filter screen B38 is a conical structure. The setting of the filter screen B38 can block solid impurities in seawater and prevent impurities from entering the deep-water well 5 .

[0034] The kinetic energy conversion assembly 4 includes a carrying shell 10, a positioning cover plate 11, a gear pump 12, a matching spur gear 13 and an external lead pipe 14. The middle part of each carrier plate 3 is fixedly connected to the carrying shell 10, the top of the carrying shell 10 is fixedly connected to the positioning cover plate 11, and the top of the positioning cover plate 11 is fixedly connected to multiple gear pumps 12, and the liquid input end of each gear pump 12 is connected to the inside of the carrying shell 10, the power input end of each gear pump 12 is fixedly connected to the matching spur gear 13, the liquid output end of the gear pump 12 is fixedly connected to the external lead pipe 14, and the top of the positioning cover plate 11 is fixedly connected to the outer surface of the gear pump 12. A confluence pipe A15 is fixedly connected to the middle part, and the end of the external guide pipe 14 away from the gear pump 12 is also connected to the confluence pipe A15. A positioning ear 16 is fixedly connected to the top of each supporting plate 3, and a confluence pipe B17 is inserted between the plurality of positioning ears 16. A liquid guide tube is fixedly connected to the outer side of the confluence pipe A15, and the end of the liquid guide tube away from the confluence pipe A15 is also connected to the confluence pipe B17. A stabilization frame 18 is also fixedly connected to the supporting plate 3 at one of the L-shaped frame assemblies 1, and a transmission pipe 19 is fixedly connected to the inner side of the stabilization frame 18, and the bottom end of the transmission pipe 19 is also connected to the confluence pipe B17.

[0035] Specifically, the kinetic energy conversion assembly 4 includes a columnar carrying shell 10 fixed to the middle of the carrying plate 3, and its top is connected to the positioning cover plate 11 through a flange; at least three gear pumps 12 with a volumetric efficiency ≥ 92% are distributed in a ring array on the positioning cover plate 11, and the input end of each gear pump 12 is connected to the inner cavity of the carrying shell 10; the power input end of each gear pump 12 is coaxially connected to the matching spur gear 13, and the output end is connected to the confluence pipe A15 in the middle of the positioning cover plate 11 through an external guide pipe 14. The confluence pipe A15 is connected to the confluence pipe B17 that runs through each carrying plate 3 through a tree-like branching liquid guide pipe; a multi-layer sealing ring is provided at the joint between the carrying shell 10 and the positioning cover plate 11.

[0036] In detail, a plurality of stabilizing ears are fixedly connected to the support plate 3 corresponding to the path of the transmission pipe 19, and the transmission pipe 19 is also fixedly connected to the top of the stabilizing ears. The setting of the stabilizing ears can provide auxiliary support for the transmission pipe 19 to prevent the transmission pipe 19 from shaking when transmitting seawater.

[0037] Here, a one-way valve is also provided on the transmission pipe 19 to prevent the backflow of seawater.

[0038] The kinetic energy conversion assembly 4 also includes a transmission shaft A24, a transmission impeller 25, a transmission spur gear A26 and a transmission shaft B27. A plurality of side water inlets 20 are provided at the bottom end of the outer side of the housing 10. A side automatic door 21 is provided at a position corresponding to the side water inlet 20 on the outer side of the housing 10. A bottom water inlet 22 is provided at the bottom end of the housing 10. A bottom automatic door 23 for blocking the bottom water inlet 22 is provided at the bottom end of the housing 10. The bottom end of the interior of the housing 10 is rotatably connected to the transmission shaft A24. The outer side of the transmission shaft A24 is fixedly connected to the transmission shaft 26. Impeller 25, the outer side of the top end of the transmission shaft A24 is fixedly connected with a transmission spur gear A26, the middle part of the positioning cover plate 11 is vertically rotatably connected with a transmission shaft B27, the top end of the transmission shaft B27 is fixedly connected with a transmission gear plate 28, and each matching spur gear 13 is meshed with the transmission gear plate 28, and one end of the transmission shaft B27 located inside the carrying shell 10 is fixedly connected with a transmission spur gear B31, an acceleration impeller 29 and a fixed impeller 30 from bottom to top, and a speed change assembly is arranged in the middle of the inner side of the carrying shell 10, and the speed change assembly is used to transmit the kinetic energy of the transmission shaft A24.

[0039] Embodiment 2:

[0040] See also Figure 1-11This embodiment provides a technical solution based on the first embodiment: the speed change assembly includes a linkage seat 39, a linkage shaft 32, an acceleration spur gear A33 and an acceleration spur gear B34, and the linkage seat 39 is fixedly connected to the middle part of the inner side of the housing 10, and the edge of the linkage seat 39 is vertically rotatably connected to multiple linkage shafts 32, the bottom end of each linkage shaft 32 is fixedly connected to the acceleration spur gear A33, and the transmission spur gear A26 is also meshed and connected between the multiple acceleration spur gears A33, the top end of each linkage shaft 32 is fixedly connected to the acceleration spur gear B34, and the transmission spur gear B31 is also meshed and connected between the multiple acceleration spur gears B34.

[0041] In this embodiment, the diameter of the transmission spur gear A26 is larger than the diameter of the acceleration spur gear A33, and the diameter of the acceleration spur gear B34 is larger than the diameter of the transmission spur gear B31, thereby achieving speed change of the transmission shaft B27.

[0042] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0043] Working principle: Select the seabed and build a seabed platform, and then connect the L-shaped frame assembly 1 and the straight rod frame assembly 2 as shown in the figure. Figure 1 Assembled and installed on the seabed platform. In this embodiment, the size of the L-shaped frame component 1 and the straight rod frame component 2 after assembly is approximately 60 meters × 60 meters × 6 meters. The frame component adopts ASTM A572 Gr50 low alloy steel, and the surface is hot-dip galvanized (zinc layer thickness ≥ 85μm) and the diameter of the deep water well 5 is 5 meters. After construction, there are no less than four groups of kinetic energy conversion components 4, otherwise it will waste resources, and the marine ecological environment must be considered. The kinetic energy conversion component 4 is installed on the seabed platform below 100 meters. The finished product is designed to be a chain structure. Three groups are built together, which can accommodate 20 to 50 groups of kinetic energy conversion components 4 on the side, and with the setting of the elevator 9, it is convenient for personnel to enter and exit the construction.

[0044] The automatic gate 36 is opened, so that seawater can enter the space between the L-shaped frame assembly 1, the straight rod frame assembly 2 and the bearing plate 3 through the seawater inlet 35, and enter the corner carrying shell 10 through the side water inlet 20 and the bottom water inlet 22. The seawater entering the carrying shell 10 can impact the transmission impeller 25. Since the transmission impeller 25 is supported by the transmission shaft A24, the transmission shaft A24 can drive the transmission spur gear A26 to rotate, and under the connection between the transmission spur gear A26 and the acceleration spur gear A33, the transmission spur gear A26 can be driven to rotate. The acceleration spur gear A33 is driven to drive the acceleration spur gear B34 to rotate, and the acceleration spur gear B34 is connected with the transmission spur gear B31, so that the transmission spur gear B31 can drive the transmission gear plate 28 to rotate through the transmission shaft B27. Then, under the connection between the transmission gear plate 28 and the matching spur gear 13, multiple gear pumps 12 can be powered at the same time to pump out the seawater in the carrying shell 10, and inject it into the confluence pipe B17 through the external lead pipe 14 and the confluence pipe A15, and finally sent to the generator set on the sea level through the transmission pipe 19 for power generation.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine hydrostatic energy conversion device, characterized in that include: Four L-shaped frame assemblies (1), two adjacent L-shaped frame assemblies are spliced ​​together via a straight rod frame assembly (2) to form a rectangular support structure; The inner sides of the L-shaped frame assembly (1) and the straight rod frame assembly (2) are both fixedly connected with a bearing plate (3), and a kinetic energy conversion assembly (4) is arranged in the middle of each bearing plate (3); A vertically arranged deep-water well (5) is coaxially fixedly connected between the plurality of bearing plates (3), the vertical axis of the deep-water well (5) being orthogonal to the seabed plane, a drainage port (6) being provided at the top of the deep-water well (5) and being provided with a pressure-sensitive movable gate (7); A stabilizing plate (8) is provided on the inner side of the top end of the L-shaped frame assembly (1) and the straight rod frame assembly (2), and a hydraulically driven lift (9) is installed on the bearing plate (3) at at least one L-shaped frame assembly.

2. A marine hydrostatic energy conversion device according to claim 1, characterized in that: The kinetic energy conversion assembly (4) comprises a carrying shell (10), a positioning cover plate (11), a gear pump (12), a matching spur gear (13) and an external guide pipe (14); the middle of each carrying plate (3) is fixedly connected to the carrying shell (10); the top of the carrying shell (10) is fixedly connected to the positioning cover plate (11); the top of the positioning cover plate (11) is fixedly connected to a plurality of gear pumps (12); the liquid input end of each gear pump (12) is in communication with the interior of the carrying shell (10); the power input end of each gear pump (12) is fixedly connected to the matching spur gear (13); the liquid output end of the gear pump (12) is fixedly connected to the external guide pipe (14); the top of the positioning cover plate (11) is fixedly connected to the matching spur gear (13); the liquid output end of the gear pump (12) is fixedly connected to the external guide pipe (14); A junction pipe A (15) is fixedly connected to the middle of the end, and the end of the external guide pipe (14) away from the gear pump (12) is also connected to the junction pipe A (15). The top of each of the supporting plates (3) is fixedly connected to a positioning ear (16), and a junction pipe B (17) is inserted between the plurality of positioning ears (16). The outer side of the junction pipe A (15) is fixedly connected to a liquid guide tube, and the end of the liquid guide tube away from the junction pipe A (15) is also connected to the junction pipe B (17). A stabilizing frame (18) is also fixedly connected to the supporting plate (3) at one of the L-shaped frame assemblies (1), and a transmission pipe (19) is fixedly connected to the inner side of the stabilizing frame (18), and the bottom end of the transmission pipe (19) is also connected to the junction pipe B (17).

3. A marine hydrostatic energy conversion device according to claim 2, characterized in that: The kinetic energy conversion assembly (4) further comprises a transmission shaft A (24), a transmission impeller (25), a transmission spur gear A (26) and a transmission shaft B (27); a plurality of side water inlets (20) are provided at the bottom end of the outer side of the carrying shell (10); a side automatic door (21) is provided at a position corresponding to the side water inlet (20) on the outer side of the carrying shell (10); a bottom water inlet (22) is provided at the bottom end of the carrying shell (10); and a bottom automatic door (23) for blocking the bottom water inlet (22) is provided at the bottom end of the carrying shell (10); the bottom end of the interior of the carrying shell (10) is rotatably connected to the transmission shaft A (24); and the outer side of the transmission shaft A (24) is fixedly connected to the transmission shaft A (24). The outer side of the top end of the transmission shaft A (24) is fixedly connected with a transmission spur gear A (26); the middle part of the positioning cover plate (11) is vertically rotatably connected with a transmission shaft B (27); the top end of the transmission shaft B (27) is fixedly connected with a transmission toothed disc (28), and each of the matching spur gears (13) is meshingly connected with the transmission toothed disc (28); one end of the transmission shaft B (27) located inside the carrying shell (10) is fixedly connected with a transmission spur gear B (31), an accelerating impeller (29) and a fixed impeller (30) in sequence from bottom to top; a speed change assembly is arranged in the middle part of the inner side of the carrying shell (10); the speed change assembly is used to transmit the kinetic energy of the transmission shaft A (24).

4. A marine hydrostatic energy conversion device according to claim 3, characterized in that: The speed change assembly comprises a linkage seat (39), a linkage shaft (32), an acceleration spur gear A (33) and an acceleration spur gear B (34); the linkage seat (39) is fixedly connected to the middle part of the inner side of the carrying shell (10); the edge of the linkage seat (39) is vertically rotatably connected to a plurality of linkage shafts (32); the bottom end of each linkage shaft (32) is fixedly connected to the acceleration spur gear A (33), and the transmission spur gear A (26) is also meshedly connected between the plurality of acceleration spur gears A (33); the top end of each linkage shaft (32) is fixedly connected to the acceleration spur gear B (34), and the transmission spur gear B (31) is also meshedly connected between the plurality of acceleration spur gears B (34).

5. The marine hydrostatic energy conversion device according to claim 1, characterized in that: The L-shaped frame assembly (1) is an "L"-shaped structure, and the straight rod frame assembly (2) is a straight plate.

6. A marine hydrostatic energy conversion device according to claim 1, characterized in that: A seawater inlet (35) is provided in the middle of each of the straight rod frame assemblies (2), and the seawater inlet (35) is located below the bearing plate (3). An automatic gate (36) and a filter screen A (37) are provided at positions of the straight rod frame assemblies (2) corresponding to the seawater inlet (35).

7. The marine hydrostatic energy conversion device according to claim 1, characterized in that: A filter screen B (38) is provided at the top of the deep water well (5), and the filter screen B (38) is a conical structure.

8. A marine hydrostatic energy conversion device according to claim 2, characterized in that: A plurality of stabilizing ears are fixedly connected to the carrier plate (3) corresponding to the path of the transmission tube (19), and the transmission tube (19) is also fixedly connected to the top of the stabilizing ears.