Multi-ball connected manned cabin of deep-sea submersible

Abstract

The application discloses a multi-ball connected manned cabin of a deep-sea submersible, which is composed of multiple spherical shell cabin sections, and each spherical shell cabin is connected with the other through a cylindrical shell transition section structure; the spherical shell cabin section and the transition section are forged into shape, and the center of the transition section is welded in a ring shape, so that two spherical shell cabin sections form an integrated connected structure; and the connection between the spherical shell cabin section and the transition section extends in the internal cavity of the transition section to form a reinforcing rib. In the case that the thickness of the welding position of the transition section shell can be controlled by the existing welding process, the transition section shell can bear greater water pressure and can dive to a greater depth.

Description

Technical Field

[0001] This invention relates to the field of diving equipment technology, specifically to a multi-sphere connected manned cabin for a deep-diving submersible. Background Technology

[0002] With the continuous development of marine resource development and deep-sea scientific research, the demand for deep-sea submersibles is increasing. Traditional submersibles have many shortcomings in structural design. For example, single-compartment submersibles have limited space, making it difficult to meet the needs of complex operations. The connection method of traditional multi-compartment submersibles is relatively cumbersome and complex in terms of manufacturing process, and the welding points happen to coincide with areas of high stress. Under the pressure of deep water, the connection points of the compartments are prone to structural damage, or problems such as sealing leakage may occur when flange connections are used, which seriously affect the safety and reliability of the submersible.

[0003] To improve the safety of the connection points between the deep-diving sections, the thickness of the connection points needs to be increased. However, if the connection points are welded, the thickness of the connection points is limited by the existing welding technology, which prevents the entire submersible from achieving deep diving depths.

[0004] If bolts are used for connection, flange connections are added, increasing weight. At the same time, it is necessary to ensure the sealing of the connection, which is prone to leakage in deep-sea environments.

[0005] Therefore, there is an urgent need to design a multi-sphere connected manned cabin for deep-sea submersibles with a reasonable structure, stable connection, and good pressure resistance. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-sphere connected manned cabin for a deep-sea submersible, with reinforcing ribs at the connection points inside the cabin sections, in order to solve the technical problems existing in the prior art.

[0007] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0008] A multi-sphere connected manned cabin for deep-sea submersibles includes:

[0009] The compartment is a spherical shell; the transition section is provided between the compartments, the transition section is a cylindrical shell, the compartments are connected to the transition section and are integrally formed; the two compartments are made into a whole by welding the edges of the two transition sections; the reinforcing rib is formed by the connection between the compartment and the transition section extending toward the interior of the transition section.

[0010] The reinforcing ribs are arranged parallel to the weld joints of the two transition sections.

[0011] Furthermore, the inner wall at the connection between the reinforcing rib and the compartment is an arc transition with the opening facing the interior of the submersible, forming a first transition section.

[0012] Furthermore, the outer wall at the connection between the transition section and the cabin section is an arc transition with an opening facing the outside of the submersible, forming a second transition section.

[0013] Furthermore, the weld joints of the two transition sections and the second transition sections on both sides of the weld joint form a concave structure with an opening facing the outside of the submersible.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The deep-sea submersible multi-sphere connected manned cabin disclosed in this invention has reinforcing ribs at the connection between the two sections, which allows the shell thickness at the connection to withstand greater water pressure, given the thickness that can be achieved by existing welding processes, and enables it to dive to greater depths.

[0016] Through the above connection methods, the submersible can be flexibly expanded to include multiple compartments according to different operational needs, such as equipment compartments and personnel compartments, thereby expanding the submersible's functions and operating space to meet diverse marine operational requirements. Attached Figure Description

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 A schematic diagram of finite element stress analysis of existing connected cabins and their joints;

[0019] Figure 2 This is a schematic diagram of the multi-sphere connected manned cabin of the deep-sea submersible of the present invention;

[0020] Figure 3 This is a schematic diagram of finite element stress analysis of the multi-sphere connected manned cabin of the deep-sea submersible of the present invention.

[0021] The labels in the diagram represent the following:

[0022] 1-Compartment section, 2-Connection port, 3-Transition section, 4-Reinforcing rib, 5-Welding joint, 6-First transition section, 7-Second transition section, 8-Concave structure. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, the present invention provides an embodiment of a multi-sphere connected manned cabin for a deep-sea submersible, mainly focusing on improving the connection structure between the cabin sections 1.

[0025] The shape of section 1 is not limited. In this embodiment, a spherical shell is preferred. The spherical shell structure can evenly distribute water pressure. Compared with other shapes, it has better pressure resistance in deep diving environments and is also easier to cast.

[0026] Section 1 has a connection port 2, which is used to connect and communicate with other sections 1; multiple sections 1 can be combined and interconnected to meet different operational needs, such as adding equipment compartments, personnel compartments, etc., to expand the function and space of the submersible.

[0027] Section 1 extends outward at the connection port 2 to form a transition section 3, so that section 1 and transition section 3 are connected; wherein, transition section 3 is a variable thickness cylindrical shell, and section 1 and transition section 3 are integrally forged.

[0028] By welding the edges of the two transition sections 3, the two compartments 1 become a whole; the connection between compartment 1 and transition section 3 extends toward the interior of transition section 3 to form a reinforcing rib 4, and the reinforcing rib 4 has a ring-shaped structure.

[0029] Existing technologies, such as Figure 1 As shown, the connection between the two sections 1 is welded together to form a sealed whole. Finite element analysis shows that the connection between the two sections 1 has high stress, requiring high material properties, especially since the weld seam is often the area with the highest stress. However, due to the limitations of the welding process, the thickness of the connection cannot be too large. This means that once the thickness of the shell at the connection reaches a certain level, it cannot be increased further, thus limiting the diving depth.

[0030] like Figure 3 As shown, after analyzing the transmission path of the internal forces of the shell, the use of reinforcing ribs 4 at both ends of the connection can greatly reduce the overall stress level at the connection. Furthermore, by optimizing the thickness of the reinforcing ribs 4, the thickness of the central weld can be greatly reduced, thereby improving the performance of the welded part.

[0031] The reinforcing rib 4 can effectively disperse the stress at the transition section 3, especially at the weld 5, under the action of deep water pressure, and prevent damage such as high stress and large deformation at the weld 5, thus ensuring the integrity and reliability of the overall structure of the submersible.

[0032] The multi-sphere connected manned cabin of the deep-sea submersible provided by this invention has a shell thickness at the connection point that can withstand greater water pressure and easily achieve greater diving depth, within the limits of existing welding processes.

[0033] To further improve the pressure resistance of weld 5, such as Figure 2 As shown, this embodiment also provides the following structure:

[0034] Furthermore, the reinforcing ribs 4 are arranged parallel to the weld joints 5 of the two transition sections 3. Based on finite element analysis, this arrangement allows the reinforcing ribs 4 to better distribute the stress on the weld joints 5, preventing the weld joints 5 from cracking due to stress concentration and improving the compressive strength of the connection parts of the compartment 1.

[0035] Furthermore, the inner wall at the connection between reinforcing rib 4 and compartment 1 is a rounded transition with the opening facing the interior of the submersible, forming the first transition section 6. The rounded transition design of the first transition section 6 eliminates sharp edges and other geometric abrupt changes at the connection, making the stress transmission process more reasonable, reducing stress concentration, and further enhancing the strength and compressive strength of the connection between reinforcing rib 4 and compartment 1.

[0036] Furthermore, the outer wall at the connection between transition section 3 and compartment 1 is an arc transition with the opening facing the outside of the submersible, forming the second transition section 7. Its arc shape helps to reduce the resistance generated when seawater flows on the surface of compartment 1 and reduce the impact of water flow on the connection part of compartment 1.

[0037] Furthermore, the weld joint 5 of the two transition sections 3, together with the second transition sections 7 on both sides of the weld joint 5, forms a concave structure 8 with an opening facing the outside of the submersible. When subjected to water pressure, this concave structure 8 can evenly distribute the pressure to the second transition sections 7 on both sides, further enhancing the pressure resistance of the transition sections and the weld joint. At the same time, the concave structure 8 can also protect the weld joint 5 to a certain extent, preventing direct collision damage to the weld joint 5 from large external objects.

[0038] In addition, section 1 is made of high-strength titanium alloy, which has the advantages of low density, high strength and corrosion resistance. It can reduce the overall weight of the submersible while ensuring the structural strength of section 1, and improve its maneuverability and endurance.

[0039] The surface of section 1 can also be coated with a special anti-corrosion coating to further enhance its corrosion resistance in the marine environment and extend the service life of the submersible.

[0040] The welding edges of transition section 3 undergo special treatment, such as heat treatment to eliminate residual stress, grinding, and polishing, in order to eliminate welding defects and improve welding quality.

[0041] Meanwhile, after welding is completed, non-destructive testing, such as ultrasonic testing and radiographic testing, is performed on the connection to ensure that there are no defects such as pores or cracks, and to guarantee the sealing and strength of the connection.

[0042] The shape and size of the reinforcing rib 4 are optimized according to the size of the compartment 1 and the water pressure it withstands. Its cross-section can be rectangular, rectangular + semi-circular, etc., and the specific shape is not limited.

[0043] In this embodiment, the cross-section of the reinforcing rib 4 is preferably rectangular, and the two corners of the reinforcing rib 4 located inside the compartment 1 are chamfered.

[0044] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A multi-sphere connected manned cabin for a deep-sea submersible, characterized in that, include: Section (1) is a spherical hull; The transition section (3) is provided on the outer wall of the compartment (1). The transition section (3) is a cylindrical shell. The compartment (1) and the transition section (3) are connected and integrally formed. By welding the edges of the two transition sections (3), the two compartments (1) and the transition section (3) become a whole. The reinforcing rib (4) is formed by extending from the connection between the compartment (1) and the transition section (3) toward the interior of the transition section (3). The reinforcing rib (4) is arranged parallel to the weld (5) of the two transition sections (3).

2. The multi-sphere connected manned cabin of the deep-sea submersible according to claim 1, characterized in that, The inner wall at the connection between the reinforcing rib (4) and the compartment (1) is an arc transition with the opening facing the interior of the submersible, forming the first transition section (6).

3. The multi-sphere connected manned cabin of the deep-sea submersible according to claim 2, characterized in that, The outer wall at the connection between the transition section (3) and the compartment (1) is an arc transition with the opening facing the outside of the submersible, forming the second transition section (7).

4. The multi-sphere connected manned cabin of the deep-sea submersible according to claim 3, characterized in that, The weld (5) of the two transition sections (3) and the second transition section (7) on both sides of the weld (5) form a concave structure (8) with the opening facing the outside of the submersible.

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