A pressure hull for a deep-sea submersible

Abstract

This utility model discloses a pressure-resistant chamber for a deep-sea submersible, belonging to the technical field of pressure-resistant chambers. It includes a chamber body with a watertight plug on top and hatch covers at both ends. A cross-shaped reinforcing rib is fixedly connected to one side of each hatch cover. A sealing assembly is provided between the chamber body and the hatch covers, and also between the chamber body and the watertight plug. The chamber body includes a base and reinforcing components. The surface of the base body is provided with the reinforcing components. This utility model incorporates sealing components to facilitate long-term and effective sealing between the chamber body and the hatch covers, resulting in a good sealing effect. The sealing rubber is made of perfluororubber, which has excellent corrosion resistance and is suitable for deep-sea environments. This utility model uses a strength layer to improve the strength of the chamber body, a corrosion-resistant layer to improve its corrosion resistance, and a pressure-resistant layer to improve its pressure resistance.

Description

Technical Field

[0001] This utility model belongs to the field of pressure chamber technology, specifically relating to a pressure chamber for a deep-sea submersible. Background Technology

[0002] A deep-sea pressure tank is a mobile deep-sea diving device with underwater observation and operational capabilities. Its top is typically rounded to ensure it can withstand immense water pressure without rupturing. The primary function of a pressure tank is to protect internal equipment and personnel, ensuring safe operation in deep-sea environments.

[0003] Chinese patent application number 201220118695.X discloses an underwater pressure-resistant chamber. It comprises two hatches, several watertight plugs, and a chamber body. The key feature is that the hatches are installed at both ends of the chamber body, connected by flanges, and sealed with O-rings at the contact surfaces. The watertight plugs are installed on the thicker side of the chamber body wall. The outer end face of the hatches is reinforced with cross-shaped ribs to enhance underwater pressure resistance. The inner and outer walls of the chamber body are situated on two eccentric circles with different radii. The cylindrical inner wall and near-circular outer wall of the chamber body minimize the weight of the chamber body under certain water pressure. This underwater pressure-resistant chamber can be used for installation and use of underwater equipment at great depths. Its structural design is simple, it allows for a wide range of material selection, is easy to machine, and has strong maintainability. Applying it to various underwater engineering projects and equipment can simplify operating procedures, improve operational efficiency, and optimize design schemes.

[0004] The aforementioned patent uses O-rings for sealing, but the specific materials used are unclear, and it is unclear how to ensure a durable seal. Furthermore, it is not convenient to improve the strength and corrosion resistance of the chamber during use. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a pressure-resistant chamber for a deep-sea submersible, which facilitates long-term and effective sealing between the chamber body and the hatch, and improves the strength and corrosion resistance of the chamber body.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure-resistant chamber for a deep-sea submersible, comprising a chamber body, a watertight plug provided on the top of the chamber body, a cover provided at both ends of the chamber body, a cross reinforcing rib fixedly connected to one side of the cover, a sealing component provided between the chamber body and the cover, and a sealing component also provided between the chamber body and the watertight plug. The chamber body includes a chamber base and a reinforcing component, and the reinforcing component is provided on the surface of the chamber base.

[0007] Preferably, the sealing assembly includes a connecting groove, a sealing rubber, and a connecting rubber, wherein connecting grooves are provided at both ends of the cabin body, and a connecting groove is also provided on one side of the cabin cover. The connecting rubber is tightly inserted into the interior of the connecting groove, and a sealing rubber is fixedly connected to one end of the connecting rubber.

[0008] Preferably, the sealing rubber includes a rubber matrix, an elastic layer, and an anti-corrosion layer, wherein the elastic layer is disposed on the surface of the rubber matrix, and the anti-corrosion layer is disposed on the surface of the elastic layer.

[0009] Preferably, a low-temperature resistant layer is provided between the elastic layer and the anti-corrosion layer.

[0010] Preferably, the strengthening effect component includes a strength layer, a pressure-resistant layer, and a corrosion-resistant layer, wherein the surface of the cabin substrate is provided with a strength layer, the surface of the strength layer is provided with a pressure-resistant layer, and the surface of the pressure-resistant layer is provided with a corrosion-resistant layer.

[0011] Preferably, the surface of the cabin is surrounded and fixedly connected with transverse reinforcing ribs, and a longitudinal reinforcing rib is fixedly connected to one side of the transverse reinforcing ribs.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model achieves a long-term and effective seal between the hull and the hatch by setting a sealing component. The sealing effect is good, and the sealing rubber is made of perfluororubber, which has good anti-corrosion properties and is suitable for deep-sea environments.

[0014] 2. This utility model achieves the effect of improving the strength and corrosion resistance of the cabin by setting up a strengthening effect component. The strength layer improves the strength of the cabin, the corrosion resistance layer improves the corrosion resistance of the cabin, and the pressure resistance layer improves the pressure resistance of the cabin. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the hatch and the cabin body of this utility model.

[0017] Figure 3 This is a schematic diagram of the sealing assembly of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the sealing rubber of this utility model;

[0019] Figure 5 This is a cross-sectional structural diagram of the cabin of this utility model.

[0020] In the diagram: 1. Hull; 2. Watertight plug; 3. Hull cover; 4. Cross reinforcing rib; 5. Sealing assembly; 51. Connecting groove; 53. Connecting rubber; 52. Sealing rubber; 521. Rubber substrate; 522. Elastic layer; 523. Low temperature resistant layer; 524. Anti-corrosion layer; 11. Hull substrate; 12. Reinforcing effect assembly; 121. Strength layer; 122. Pressure resistant layer; 123. Corrosion resistant layer. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figures 1-5 The present invention provides the following technical solution: a pressure-resistant chamber for a deep-sea submersible, comprising a chamber body 1, a watertight plug 2 disposed on the top of the chamber body 1, a chamber cover 3 disposed at both ends of the chamber body 1, a cross reinforcing rib 4 fixedly connected to one side of the chamber cover 3, a sealing component 5 disposed between the chamber body 1 and the chamber cover 3, and a sealing component 5 disposed between the chamber body 1 and the watertight plug 2. The chamber body 1 comprises a chamber base 11 and a reinforcing component 12, and the reinforcing component 12 is disposed on the surface of the chamber base 11.

[0024] Specifically, the sealing assembly 5 includes a connecting groove 51, a sealing rubber 52, and a connecting rubber 53. The connecting groove 51 is provided at both ends of the cabin 1, and a connecting groove 51 is also provided on one side of the cabin cover 3. The connecting rubber 53 is tightly inserted into the inside of the connecting groove 51, and the sealing rubber 52 is fixedly connected to one end of the connecting rubber 53.

[0025] By adopting the above technical solution, the connecting rubber 53 is inserted into the connecting groove 51 of the hatch cover 3 and the cabin body 1 respectively, and then the sealing rubber 52 is squeezed by the cabin body 1 and the hatch cover 3 to fix it, thereby sealing it through the sealing rubber 52.

[0026] Specifically, the sealing rubber 52 includes a rubber matrix 521, an elastic layer 522, and an anti-corrosion layer 524, wherein the surface of the rubber matrix 521 is provided with the elastic layer 522, and the surface of the elastic layer 522 is provided with the anti-corrosion layer 524.

[0027] By adopting the above technical solution, the anti-corrosion layer 524 is the effect layer, the rubber matrix 521 of the sealing rubber 52 is made of perfluororubber, which has good anti-corrosion performance and is suitable for deep-sea work, and the elastic layer 522 is the effect layer. By using raw rubber with appropriate Mooney viscosity, adding appropriate amounts of acid absorber and vulcanizing agent, and controlling the temperature and time during the processing, the compressive strength of fluororubber is effectively improved, resulting in good elasticity.

[0028] Specifically, a low-temperature resistant layer 523 is provided between the elastic layer 522 and the anti-corrosion layer 524.

[0029] By adopting the above technical solution, the low-temperature resistant layer 523 is an effect layer. By introducing flexible monomers into the perfluororubber molecular chain during production, such as increasing the VDF ratio or adding tetrafluoroethylene-propylene copolymer, the regularity of the molecular chain can be disrupted, the tendency of low-temperature crystallization can be reduced, thereby improving the low-temperature resistance performance.

[0030] In this embodiment, during use: connecting rubber 53 is inserted into the connecting groove 51 of hatch cover 3 and hatch body 1 respectively, and then the sealing rubber 52 is squeezed by hatch body 1 and hatch cover 3 to fix it, thereby sealing through the sealing rubber 52. The anti-corrosion layer 524 is the effect layer. The rubber matrix 521 of the sealing rubber 52 is made of perfluororubber, which has good anti-corrosion performance and is suitable for deep-sea operation. The elastic layer 522 is the effect layer. By using raw rubber with appropriate Mooney viscosity, adding appropriate amounts of acid absorber and vulcanizing agent, and controlling the temperature and time during the processing, the compressive strength of fluororubber is effectively improved, resulting in good elasticity. The low-temperature resistant layer 523 is the effect layer. By introducing flexible monomers into the perfluororubber molecular chain during production, such as increasing the VDF ratio or adding tetrafluoroethylene-propylene copolymer, the regularity of the molecular chain can be disrupted, the tendency of low-temperature crystallization can be reduced, thereby improving the low-temperature resistance. This makes it easy for the device to effectively and long-term seal between hatch cover 3 and hatch body 1 during use. The structure is practical and the sealing effect is good.

[0031] Example 2

[0032] The difference between this embodiment and embodiment 1 is that, specifically, the strengthening effect component 12 includes a strength layer 121, a pressure-resistant layer 122 and a corrosion-resistant layer 123, wherein the surface of the cabin substrate 11 is provided with a strength layer 121, the surface of the strength layer 121 is provided with a pressure-resistant layer 122, and the surface of the pressure-resistant layer 122 is provided with a corrosion-resistant layer 123.

[0033] By adopting the above technical solution, the strength layer 121 is an effect layer, made of titanium alloy through the substrate 11. During manufacturing, annealing is performed to improve the strength of the titanium alloy. The compressive strength layer 122 is an effect layer; by adding appropriate alloying elements, such as aluminum, vanadium, and molybdenum, to the titanium alloy during production, its compressive strength can be effectively enhanced. These elements can form a solid solution with titanium, improving the strength and hardness of the alloy while maintaining good plasticity and toughness. The addition of alloying elements can also refine the grains and improve the overall mechanical properties of the material. The corrosion resistant layer 123 is an effect layer; by using surface treatment techniques such as anodizing and electrodeposition, a protective film can be formed on the surface of the titanium alloy to effectively block the intrusion of corrosive media. For example, micro-arc oxidation is considered the most promising surface treatment method.

[0034] Specifically, the surface of the cabin 1 is surrounded and fixedly connected with transverse reinforcing ribs, and a longitudinal reinforcing rib is fixedly connected to one side of the transverse reinforcing ribs.

[0035] By adopting the above technical solutions, the transverse and longitudinal reinforcing ribs facilitate further improvement of the strength of the cabin 1.

[0036] In this embodiment, during use: the strength layer 121 is an effect layer, made of titanium alloy from the substrate 11. During manufacturing, annealing is performed to improve the strength of the titanium alloy. The compressive strength layer 122 is an effect layer; by adding appropriate alloying elements, such as aluminum, vanadium, and molybdenum, to the titanium alloy during production, its compressive strength can be effectively enhanced. These elements can form a solid solution with titanium, improving the alloy's strength and hardness while maintaining good plasticity and toughness. The addition of alloying elements can also refine the grains and improve the overall mechanical properties of the material. The corrosion resistant layer 123 is an effect layer; by using surface treatment techniques such as anodizing and electrodeposition, a protective film can be formed on the surface of the titanium alloy, effectively blocking the intrusion of corrosive media. For example, micro-arc oxidation is considered the most promising surface treatment method, making it easier to improve the strength and corrosion resistance of the substrate 1 during use.

[0037] The structure and working principle of the cabin body 1, watertight plug 2, cabin cover 3, and cross reinforcing rib 4 in this utility model have been disclosed in the underwater pressure-resistant cabin disclosed in Chinese patent application number 201220118695.X. Its working principle is that when the underwater pressure-resistant cabin is placed underwater to withstand external pressure, the cross reinforcing rib 4 of the cabin cover 3 can improve the water pressure resistance of the cabin cover 3 without increasing the volume and weight of the cabin cover 3.

[0038] The working principle and usage process of this utility model: When the underwater pressure-resistant chamber is placed underwater to withstand external pressure, the cross-shaped reinforcing ribs 4 of the cover 3 can improve the water pressure resistance of the cover 3 without increasing its volume and weight. The sealing component 5 facilitates an effective and long-lasting seal between the chamber body 1 and the cover 3. The reinforcing component 12 enhances the strength and corrosion resistance of the chamber body 1. When using the sealing component 5, the connecting rubber 53 is inserted into the connecting grooves 51 of the cover 3 and the chamber body 1 respectively. Then, the sealing rubber 52 is fixed by the chamber body 1 and the cover 3 pressing together, thereby achieving a seal through the sealing rubber 52. The anti-corrosion layer 524 is the effect layer. The rubber matrix 521 of the sealing rubber 52 is made of perfluororubber, which has good anti-corrosion performance and is suitable for deep-sea operations. The elastic layer 522 is the effect layer, which is produced by using raw rubber with appropriate Mooney viscosity and adding... Appropriate amounts of acid absorbers and vulcanizing agents, along with controlled temperature and time during processing, effectively improve the compressive strength of fluororubber, resulting in good elasticity. The low-temperature resistant layer 523 is an effect layer; by introducing flexible monomers into the perfluororubber molecular chain during production, such as increasing the VDF ratio or adding tetrafluoroethylene-propylene copolymer, the regularity of the molecular chain can be disrupted, reducing the tendency for low-temperature crystallization and thus improving low-temperature resistance. This allows the device to effectively and sustainably seal the space between the cover 3 and the body 1 during use. The structure is practical and provides excellent sealing. When using the reinforcing effect component 12, the strength layer 121 is an effect layer. The substrate 11 is made of titanium alloy, and annealing treatment during manufacturing increases the strength of the titanium alloy. The compressive strength layer 122 is also an effect layer; by adding appropriate alloying elements such as aluminum, vanadium, and molybdenum to the titanium alloy during production, its compressive strength can be effectively enhanced. These elements can form a solid solution with titanium, increasing the alloy's strength and hardness while maintaining good plasticity and toughness. The addition of titanium alloy elements can also refine the grains and improve the overall mechanical properties of the material. The corrosion-resistant layer 123 is an effect layer. By using surface treatment techniques such as anodizing and electrodeposition, a protective film can be formed on the surface of the titanium alloy to effectively block the intrusion of corrosive media. For example, micro-arc oxidation is considered the most promising surface treatment method, which makes it easier to improve the strength and corrosion resistance of the chamber 1 when the device is in use.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant chamber for a deep-sea submersible, comprising a chamber body (1), a watertight plug (2) disposed on the top of the chamber body (1), and hatch covers (3) disposed at both ends of the chamber body (1), with a cross-shaped reinforcing rib (4) fixedly connected to one side of the hatch cover (3), characterized in that: A sealing assembly (5) is provided between the cabin body (1) and the hatch cover (3), and a sealing assembly (5) is also provided between the cabin body (1) and the watertight plug (2). The cabin body (1) includes a cabin base (11) and a reinforcing effect assembly (12). The surface of the cabin base (11) is provided with the reinforcing effect assembly (12). The sealing assembly (5) includes a connecting groove (51), a sealing rubber (52) and a connecting rubber (53). The two ends of the cabin (1) are provided with connecting grooves (51), and one side of the hatch (3) is also provided with a connecting groove (51). The connecting rubber (53) is tightly inserted into the inside of the connecting groove (51), and the sealing rubber (52) is fixedly connected to one end of the connecting rubber (53). The sealing rubber (52) includes a rubber matrix (521), an elastic layer (522) and an anti-corrosion layer (524), wherein the surface of the rubber matrix (521) is provided with an elastic layer (522) and the surface of the elastic layer (522) is provided with an anti-corrosion layer (524).

2. The pressure chamber of a deep-sea submersible according to claim 1, characterized in that: A low-temperature resistant layer (523) is provided between the elastic layer (522) and the anti-corrosion layer (524).

3. The pressure chamber of a deep-sea submersible according to claim 1, characterized in that: The strengthening effect component (12) includes a strength layer (121), a pressure-resistant layer (122) and a corrosion-resistant layer (123), wherein the surface of the cabin substrate (11) is provided with a strength layer (121), the surface of the strength layer (121) is provided with a pressure-resistant layer (122), and the surface of the pressure-resistant layer (122) is provided with a corrosion-resistant layer (123).

4. The pressure chamber of a deep-sea submersible according to claim 3, characterized in that: The surface of the cabin (1) is surrounded and fixedly connected with transverse reinforcing ribs, and a longitudinal reinforcing rib is fixedly connected to one side of the transverse reinforcing ribs.

Images