Multi-ball connected manned cabin of large-diving-depth submersible

Abstract

The invention discloses a large-diving-depth submersible multi-ball connected manned cabin which is composed of a plurality of spherical shell cabin sections, and all the spherical shell cabin sections are connected through cylindrical shell transition section structures. The spherical shell cabin sections and the transition sections are formed by forging, and the centers of the transition sections are welded in the circumferential direction, so that the two spherical shell cabin sections form an integral connected structure; and the joint of the spherical shell cabin section and the transition section extends in the inner cavity of the transition section to form a reinforcing rib. The thickness of the welding position of the transition section shell is controlled under the condition that welding can be completed through an existing welding technology, the transition section shell can bear larger water pressure, and the transition section shell can dive to a deeper depth.

Description

Technical Field

[0001] The present invention relates to the technical field, and in particular to a multi-ball connected manned cabin for a deep-diving submersible. Background Art

[0002] With the continuous development of fields such as marine resource development and deep-sea scientific research, the demand for deep-diving submersibles is growing. Traditional submersibles have many shortcomings in their structural design. For example, the limited space of single-compartment submersibles makes it difficult to meet the needs of complex operations. The connection methods of traditional multi-compartment submersibles are relatively cumbersome and complex in terms of process implementation. The welds coincide with areas with high stress. Under the high-pressure environment at great depths, the compartment joints are prone to structural damage, and flange connections may face sealing leakage and other problems, seriously affecting the safety and reliability of the submersible.

[0003] In order to improve the safety of the compartment connection parts for deep diving, it is necessary to increase the thickness of the compartment connection parts. However, if the compartment connection parts are formed by welding, there is an upper limit to the thickness of the connection parts due to the limitations of existing welding technology, which makes the entire submersible unable to achieve a deep diving depth.

[0004] If bolts are used for connection, flange connection is added, which increases the weight. At the same time, the sealing of the connection must be ensured, which is prone to leakage in a deep diving environment.

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

[0006] The purpose of the present invention is to provide a multi-ball connected manned cabin for a deep-diving submersible, wherein reinforcing ribs are provided at the connection points inside the cabin sections to solve the technical problems existing in the prior art.

[0007] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0008] A multi-ball connected manned cabin for a deep-diving submersible, comprising:

[0009] The cabin section is a spherical shell; the transition section is provided between the cabin sections, and the transition section is a cylindrical shell. The cabin section is connected to the transition section and is formed as one piece; by welding the edges of the two transition sections, the two cabin sections become a whole; the reinforcing ribs are formed by extending the connection between the cabin section and the transition section toward the interior of the transition section.

[0010] Furthermore, the reinforcing rib is arranged parallel to the welding point of the two transition sections.

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

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

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

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

[0015] The multi-ball connected manned cabin of the deep-diving submersible disclosed in the present invention is provided with reinforcing ribs in the connection between the two cabin sections, so that the thickness of the shell at the connection can withstand greater water pressure while the thickness can be welded by the existing welding process, and the submersible can dive to a deeper depth.

[0016] Through the above-mentioned connection method, the submersible can flexibly expand multiple compartments according to different operational requirements, add equipment compartments, personnel compartments, etc., expand the functions and operating space of the submersible, and meet diverse marine operation needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. The drawings described below are merely exemplary. Those skilled in the art can also derive other implementation drawings based on the provided drawings without inventive effort.

[0018] Figure 1 This is a schematic diagram of the finite element stress analysis of the connected cabin and its connection in the prior art;

[0019] Figure 2 This is a schematic structural diagram of a multi-ball connected manned cabin of a deep-diving submersible according to the present invention;

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

[0021] The numbers in the figure represent the following:

[0022] 1-cabin section, 2-connection port, 3-transition section, 4-reinforcement rib, 5-welding point, 6-first transition section, 7-second transition section, 8-concave structure. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, the present invention provides an implementation of a multi-ball connected manned cabin for a deep-diving submersible, mainly aiming at improving the connection structure between cabin sections 1.

[0025] Among them, the shape of the compartment 1 is not limited. This embodiment gives priority to a spherical shell. The spherical shell structure can evenly disperse the water pressure. Compared with other shapes, it has better pressure resistance in a deep diving environment and is easier to cast.

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

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

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

[0029] Existing technologies, such as Figure 1 As shown, the connection fittings at the connection ports 2 of the two compartments 1 are welded together to form a sealed whole. Finite element analysis shows that the joints between the two compartments 1 are subject to significant stress, placing high demands on material properties. The weld seam, in particular, is often the area of greatest stress. However, due to limitations in the welding process, the thickness of this joint cannot be excessively increased. Consequently, the shell thickness at the joint cannot be increased further after reaching a certain thickness, limiting the dive depth.

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

[0031] Under the action of deep water pressure, the reinforcing ribs 4 can effectively disperse the stress in the transition section 3, especially the welding point 5, to prevent damage such as high stress and large deformation at the welding point 5, thereby ensuring the integrity and reliability of the overall structure of the submersible.

[0032] The multi-ball connected manned cabin of the deep-diving submersible provided by the present invention can withstand greater water pressure and easily achieve a greater diving depth while maintaining the thickness of the shell at the connection point that can be welded by the existing welding process.

[0033] In order to further improve the pressure resistance of welding point 5, Figure 2 As shown, this embodiment also provides the following structure:

[0034] Furthermore, the reinforcing ribs 4 are arranged parallel to the welding points 5 of the two transition sections 3. Based on finite element analysis, this arrangement enables the reinforcing ribs 4 to better share the stress on the welding points 5, avoid rupture of the welding points 5 due to stress concentration, and improve the compressive resistance of the connection parts of the compartment 1.

[0035] Furthermore, the inner wall of the connection between the reinforcing rib 4 and the compartment 1 is an arc transition with an opening toward the interior of the submersible, forming a first transition section 6. The arc transition design of the first transition section 6 eliminates sharp corners and other geometric changes at the connection, making stress transmission more rational, reducing stress concentration, and further enhancing the strength and compressive performance of the connection between the reinforcing rib 4 and the compartment 1.

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

[0037] Furthermore, the welds 5 of the two transition sections 3 and the second transition sections 7 on either side of the welds 5 form a concave structure 8 that opens toward the exterior of the submersible. When subjected to water pressure, this concave structure 8 evenly distributes the pressure to the second transition sections 7 on either side, further enhancing the compressive strength of the transition sections and welds. Furthermore, the concave structure 8 also provides some protection for the welds 5, preventing direct damage from external large-mass objects.

[0038] In addition, compartment 1 is made of high-strength titanium alloy material, 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 compartment 1, thereby improving its maneuverability and endurance.

[0039] The surface of compartment 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 edge of the transition section 3 is specially treated, such as heat treatment to eliminate residual stress, grinding, polishing and other processes, so as to eliminate welding defects and improve welding quality.

[0041] At the same time, after welding is completed, non-destructive testing is carried out on the connection parts, such as ultrasonic testing, X-ray testing, etc., to ensure that there are no defects such as pores and cracks in the connection parts, and to ensure 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 bears. Its cross section can be rectangular, rectangular + semicircular, 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 the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A multi-ball connected manned cabin for a deep-diving submersible, characterized in that: include: The cabin section (1) is a spherical shell; A transition section (3) is provided on the outer side wall of the cabin section (1), the transition section (3) is a cylindrical shell, the cabin section (1) and the transition section (3) are connected and formed as one piece; by welding the edges of the two transition sections (3), the two cabin sections (1) and the transition section (3) become a whole; A reinforcing rib (4) is formed at a connection point between the cabin section (1) and the transition section (3) and extends toward the interior of the transition section (3) to form the reinforcing rib (4).

2. The multi-ball connected manned cabin of a deep-diving submersible according to claim 1 is characterized in that: The reinforcing rib (4) is arranged parallel to the welding point (5) of the two transition sections (3).

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

4. The multi-ball connected manned cabin of a deep-diving submersible according to claim 3 is characterized in that: The outer side wall of the connection between the transition section (3) and the compartment section (1) is an arc transition with an opening toward the outside of the submersible, forming a second transition section (7).

5. The multi-ball connected manned cabin of a deep-diving submersible according to claim 4 is characterized in that: The welded portions (5) of the two transition sections (3) and the second transition sections (7) on both sides of the welded portions (5) form a concave structure (8) with an opening facing the outside of the submersible.

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