阅读说明：本技术 基于钛合金的舷间压载水舱和潜水系统 (Titanium alloy-based shipboard ballast water tank and diving system ) 是由 王祺 张新宇 何其健 雷加静 耿黎明 于 2021-08-26 设计创作，主要内容包括：本发明公开了一种基于钛合金的舷间压载水舱和潜水系统。本基于钛合金的舷间压载水舱,包括舱体壳体以及固定于舱体壳体外侧壁上的连接肘板,其中,舱体壳体为钛合金制成的弧形舱体,弧形舱体对应的圆心与主耐压壳体圆心同心设置,舱体壳体与主耐压壳体外侧壁之间设有间隙,舱体壳体的上下两端均固定有连接肘板,连接肘板与主耐压壳体的耐压壳体肘板铰接且相对于其可转动。本发明提出的基于钛合金的舷间压载水舱,可在满足舷间压载水舱的强度和功能的前提下,显著降低了由于潜水系统主耐压壳体变形协调引起的附加应力。(The invention discloses an inter-board ballast water tank and a diving system based on titanium alloy. The ballast water tank between the boards based on the titanium alloy comprises a tank body shell and connecting toggle plates fixed on the outer side wall of the tank body shell, wherein the tank body shell is an arc-shaped tank body made of the titanium alloy, the circle center corresponding to the arc-shaped tank body and the circle center of a main pressure-resistant shell are concentrically arranged, a gap is arranged between the tank body shell and the outer side wall of the main pressure-resistant shell, the upper end and the lower end of the tank body shell are respectively fixed with the connecting toggle plates, and the connecting toggle plates are hinged with the pressure-resistant shell toggle plates of the main pressure-resistant shell and can rotate relative to the pressure-resistant shell. The titanium alloy-based shipboard ballast water tank provided by the invention can obviously reduce the additional stress caused by the deformation coordination of the main pressure shell of the diving system on the premise of meeting the strength and the function of the shipboard ballast water tank.)

1. An inter-board ballast water tank based on titanium alloy is characterized by comprising a tank body shell and a connecting toggle plate fixed on the outer side wall of the tank body shell, wherein,

the cabin shell is an arc-shaped cabin made of titanium alloy, the circle center corresponding to the arc-shaped cabin is concentric with the circle center of the main pressure-resistant shell, a gap is formed between the cabin shell and the outer side wall of the main pressure-resistant shell, connecting brackets are fixed at the upper end and the lower end of the cabin shell, and the connecting brackets are hinged with the pressure-resistant shell brackets of the main pressure-resistant shell and can rotate relative to the pressure-resistant shell brackets.

2. The titanium alloy-based inter-board ballast water tank of claim 1, wherein the tank body shell comprises an inner shell plate and an outer shell plate which are of an arc-shaped structure and are oppositely arranged, two longitudinal girder plates connecting upper and lower end portions of the inner shell plate and the outer shell plate, and two tank wall plates connecting front and rear sides of the inner shell plate and the outer shell plate, wherein the inner shell plate, the outer shell plate, the longitudinal girder plates and the tank wall plates are connected to form a closed tank body structure.

3. The titanium alloy-based shipboard ballast water tank of claim 2, wherein a plurality of ribs are further fixed to the outer side of the bulkhead plate, and both ends of each rib are fixedly connected to the inner skin plate and the outer skin plate, respectively.

4. The titanium alloy-based inter-board ballast water tank according to claim 2, wherein said tank shell is internally provided with a reinforcing structure for increasing the structural strength thereof.

5. The titanium alloy-based shipboard ballast water tank of claim 4, wherein the reinforcing structure further comprises a ballast water tank longitudinal rib welded to the inner sidewalls of the inner and outer skin panels in a horizontal direction and a ballast water tank rib welded to the inner sidewalls of the inner and outer skin panels in a vertical direction.

6. The titanium alloy-based inter-board ballast water tank of claim 5, wherein the reinforcing structure comprises a support plate located within the tank shell, the support plate being fixedly connected on both sides to the ballast water tank ribs on the inner and outer skin plates, respectively.

7. The titanium alloy-based shipboard ballast water tank of claim 6, wherein the ballast water tank longitudinal ribs and the ballast water tank ribs are of T-shaped structures, are made of titanium alloy materials, and are composed of panels and webs.

8. The titanium alloy-based shipboard ballast water tank of claim 4, wherein the reinforcing structure further comprises a ballast water tank rib plate, the upper and lower ends of which are connected to the longitudinal girders, respectively, and the side surfaces of which are connected to the inner side walls of the inner and outer skin plates.

9. The titanium alloy-based shipboard water ballast tank of any one of claims 2 to 8, wherein the inner skin and the outer skin are concentrically arranged, the junction between the outer skin and the stringer is formed by a rounded corner transition, the bulkhead has a flat curved plate structure, and the stringer has a rectangular folded plate structure.

10. A diving system, comprising the titanium alloy-based shipboard water ballast tank of any one of claims 1 to 9, and further comprising a main pressure casing, wherein a pressure casing toggle plate is fixed on the main pressure casing, a stud penetrates through the pressure casing toggle plate and the connecting toggle plate of the main pressure casing to movably connect the pressure casing toggle plate and the connecting toggle plate, and a nut is sleeved on the tail part of the stud.

Technical Field

The invention relates to the technical field of ship engineering ship structures, in particular to an inter-board ballast water tank and a diving system based on titanium alloy.

Background

The structure of the ballast water tank between the boards of the diving system is arranged outside the underwater main pressure-resistant shell of the diving system and is an important component of the non-pressure-resistant structure of the diving system. The conventional ballast water tank between the boards is directly welded on the main pressure shell through bulkhead boards, longitudinal girder boards and supporting boards, and the structural schematic diagram is shown in figure 1.

For a titanium alloy diving system, the submerging depth is larger due to high strength and low density of the titanium alloy. Meanwhile, because the titanium alloy has low elastic modulus, the deformation degree of the titanium alloy main pressure shell is larger than that of the steel pressure shell, so that a severe deformation coordination problem is caused to the structure between the boards, and high additional stress is generated at the connecting part of the ballast water tank between the boards and the main pressure shell, so that stress concentration is caused, and the structure safety is not facilitated.

Disclosure of Invention

The invention mainly aims to provide an inter-board ballast water tank and a diving system based on titanium alloy, aiming at reducing additional stress generated at the connecting part of the inter-board ballast water tank and a main pressure shell.

In order to achieve the above objects, the present invention provides an inter-board ballast water tank based on titanium alloy, comprising a tank shell and a connecting bracket fixed on the outer sidewall of the tank shell, wherein,

the cabin shell is an arc-shaped cabin made of titanium alloy, the circle center corresponding to the arc-shaped cabin is concentric with the circle center of the main pressure-resistant shell, a gap is formed between the cabin shell and the outer side wall of the main pressure-resistant shell, connecting brackets are fixed at the upper end and the lower end of the cabin shell, and the connecting brackets are hinged with the pressure-resistant shell brackets of the main pressure-resistant shell and can rotate relative to the pressure-resistant shell brackets.

Preferably, the cabin body shell comprises an inner shell plate and an outer shell plate which are of arc structures and are arranged oppositely, two longitudinal truss plates which are used for connecting the upper end portions and the lower end portions of the inner shell plate and the outer shell plate, and two cabin wall plates which are used for connecting the front side and the rear side of the inner shell plate and the front side of the outer shell plate, wherein the inner shell plate, the outer shell plate, the longitudinal truss plates and the cabin wall plates are connected to form a closed cabin body structure.

Preferably, the outer side of the bulkhead plate is further fixed with a plurality of reinforcing ribs, and two ends of each reinforcing rib are fixedly connected with the inner shell plate and the outer shell plate respectively.

Preferably, the cabin shell is internally provided with a reinforcing structure for increasing the structural strength of the cabin shell.

Preferably, the reinforcing structure further comprises a ballast water tank longitudinal frame welded to the inner side walls of the inner and outer skin plates in the horizontal direction, and a ballast water tank rib welded to the inner side walls of the inner and outer skin plates in the vertical direction.

Preferably, the reinforcing structure comprises a supporting plate positioned in the shell of the cabin body, and two sides of the supporting plate are fixedly connected with the ballast water tank ribs on the inner shell plate and the outer shell plate respectively.

Preferably, the ballast water tank longitudinal frame and the ballast water tank rib are of T-shaped structures, are made of titanium alloy materials and are composed of face plates and web plates.

Preferably, the reinforcing structure further comprises a water ballast tank rib plate, wherein the upper end and the lower end of the water ballast tank rib plate are respectively connected with the two longitudinal truss plates, and the side surface of the water ballast tank rib plate is connected with the inner side walls of the inner shell plate and the outer shell plate.

Preferably, the inner shell plate and the outer shell plate are concentrically arranged, the joint of the outer shell plate and the longitudinal truss plate is in fillet transition, the bulkhead plate is of a plane curved plate structure, and the longitudinal truss plate is of a rectangular folded plate structure.

The invention further provides a diving system which comprises the titanium alloy-based shipboard ballast water tank and a main pressure shell, wherein a pressure shell toggle plate is fixed on the main pressure shell, a stud penetrates through the pressure shell toggle plate and a connecting toggle plate of the main pressure shell to movably connect the pressure shell toggle plate and the connecting toggle plate, and a nut is sleeved on the tail part of the stud.

The titanium alloy-based shipboard ballast water tank provided by the invention has the following beneficial effects:

1. the ballast water tank between the boards is an independent ballast water tank, a gap is arranged between the ballast water tank and the main pressure shell, the ballast water tank is not in direct rigid contact with the main pressure shell and is connected with the main pressure shell only through a toggle plate, when the main pressure shell deforms, the stud can be adjusted in a self-adaptive mode, rigid welding with the main pressure shell is avoided, deformation coordination additional stress caused by deformation of the main pressure shell is greatly reduced, and the calculation result shows that the additional stress is reduced by about 25% compared with the traditional ballast water tank structure;

2. the ballast water tank between the shipboard is made of titanium alloy, the specific gravity of the titanium alloy is greatly reduced compared with that of steel, the structural weight is reduced, and the ballast water tank is particularly favorable for a large-depth diving system. Compared with steel, the titanium alloy has stronger corrosion resistance, and relieves the corrosion problem of ballast water tanks among the boards to a certain extent.

Drawings

FIG. 1 is a schematic structural view of a prior art intermediate shipboard ballast water tank and a main pressure hull;

FIG. 2 is a schematic structural view of an inter-board ballast water tank and a main pressure hull based on titanium alloy according to the present invention;

FIG. 3 is a schematic view showing the expanded structure of the inner hull of the titanium alloy-based inter-board ballast tank of the present invention;

FIG. 4 is a schematic view showing the expanded structure of the outer hull in the titanium alloy-based inter-board ballast tank according to the present invention;

FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a schematic sectional view taken along the line A-A in FIG. 4;

FIG. 7 is a schematic illustration of the deployed configuration of the stringer in the titanium alloy-based inter-board ballast water tank of the present invention;

FIG. 8 is a schematic cross-sectional view taken along the line C-C in FIG. 4;

FIG. 9 is a schematic cross-sectional view taken along line D-D of FIG. 6;

fig. 10 is a partial structural view of the direction a shown in fig. 6.

In the figure, 1-inner shell plate, 2-outer shell plate, 3-bulkhead plate, 4-reinforcing rib, 5-water ballast tank rib, 6-water ballast tank rib plate, 7-supporting plate, 8-water ballast tank longitudinal bone, 9-longitudinal truss plate, 10-connecting toggle plate, 11-stud fixing ring, 12-nut, 13-stud, 14-pressure shell toggle plate, 15-main pressure shell and 16-inter-board water ballast tank.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 10, in the preferred embodiment, an inter-board ballast water tank based on titanium alloy comprises a tank shell and a connecting toggle plate 10 fixed on the outer side wall of the tank shell, wherein,

the cabin shell is an arc cabin made of titanium alloy, the circle center corresponding to the arc cabin is concentric with the circle center of the main pressure shell, a gap is arranged between the cabin shell and the outer side wall of the main pressure shell, connecting brackets 10 are fixed at the upper end and the lower end of the cabin shell, and the connecting brackets 10 are hinged with a pressure shell bracket 14 of the main pressure shell and can rotate relative to the pressure shell bracket.

The circle center of the inner shell plate 1 is concentric with the circle center of the main pressure shell, but the radius is larger than that of the main pressure shell, so that a certain gap exists between the inner shell plate 1 and the main pressure shell, and the inner shell plate and the main pressure shell are not in direct contact, which is one of the core innovation points of the invention. A pressure casing toggle plate 14 is fixed on the main pressure casing (the pressure casing toggle plate 14 is welded on the main pressure casing), a stud 13 passes through the pressure casing toggle plate 14 of the main pressure casing and the connecting toggle plate 10 to movably connect the two, and a nut 12 is sleeved on the tail part of the stud 13.

Specifically, referring to fig. 3 to 6, the cabin shell includes an inner shell plate 1 and an outer shell plate 2 which are of an arc structure and are arranged oppositely, two longitudinal girder plates 9 which connect upper and lower end portions of the inner shell plate 1 and the outer shell plate 2, and two cabin wall plates 3 which connect front and rear sides of the inner shell plate 1 and the outer shell plate 2, wherein the inner shell plate 1, the outer shell plate 2, the longitudinal girder plates 9 and the cabin wall plates 3 are connected to form a closed cabin structure to form an independent pressure vessel (the inner shell plate 1, the outer shell plate 2, the longitudinal girder plates 9 and the cabin wall plates 3 can be connected into a whole by welding).

The inner shell plate 1 and the outer shell plate 2 are concentrically arranged, the radius of the outer shell plate 2 is larger than that of the inner shell plate 1, and the distance between the outer shell plate 2 and the inner shell plate 1 is the area of the storage medium of the ballast water tank. The joint of the outer shell plate 2 and the longitudinal girder plate 9 is in round angle transition, the bulkhead plate 3 is of a plane curved plate structure, and the longitudinal girder plate 9 is of a rectangular folded plate structure. The inner skin plate 1, the outer skin plate 2, the longitudinal girder plates 9 and the bulkhead plates 3 are all made of titanium alloy materials.

Further, referring to fig. 9, a plurality of reinforcing ribs 4 are fixed on the outer side of the bulkhead plate 3, and both ends of the reinforcing ribs 4 are respectively fixedly connected with the inner skin plate 1 and the outer skin plate 2. The reinforcing ribs 4 may be connected to the inner skin 1 and the outer skin 2 by welding. The bulkhead plate 3 is provided with a reinforcing rib 4 at intervals (or at a certain angle) to reinforce the bulkhead plate 3.

Further, a reinforcing structure for increasing the structural strength of the shell is arranged in the shell of the cabin.

Further, referring to fig. 3 and 4, the reinforcing structure further includes a ballast tank longitudinal rib 8 and a ballast tank rib 5, the ballast tank longitudinal rib 8 is welded to the inner sidewalls of the inner and outer skins 1 and 2 in the horizontal direction, and the ballast tank rib 5 is welded to the inner sidewalls of the inner and outer skins 1 and 2 in the vertical direction. The ballast water tank longitudinal frame 8 and the ballast water tank ribs 5 play a role in strengthening the structural strength of the tank body shell and reducing the deformation of the tank body shell.

Specifically, referring to fig. 5, the reinforcing structure includes a supporting plate 7 located inside the hull of the tank body, and both sides of the supporting plate 7 are fixedly connected to the ballast water tank ribs 5 on the inner and outer hull plates 1 and 2, respectively.

Specifically, referring to fig. 8, each of the ballast tank longitudinal ribs 8 and the ballast tank ribs 5 has a T-shaped structure, is made of a titanium alloy material, and is composed of a face plate and a web plate.

Further, referring to fig. 5, the reinforcing structure further includes a water ballast tank rib 6, wherein upper and lower ends of the water ballast tank rib 6 are respectively connected to the two longitudinal girders 9 and side surfaces thereof are connected to the inner side walls of the inner skin plate 1 and the outer skin plate 2. The ballast water tank floor 6 serves the purpose of supporting, reinforcing and reducing stress concentration.

The titanium alloy-based ballast water tank between the ship sides has the following beneficial effects:

1. the ballast water tank between the boards is an independent ballast water tank, a gap is arranged between the ballast water tank and the main pressure shell, the ballast water tank is not in direct rigid contact with the main pressure shell and is only connected with the main pressure shell through a toggle plate, when the main pressure shell deforms, the toggle plate 10 connected with the pressure shell toggle plate 14 of the main pressure shell rotates, rigid welding with the main pressure shell is avoided, deformation coordination additional stress caused by deformation of the main pressure shell is greatly reduced, and the calculation result shows that the additional stress is reduced by about 25% compared with the traditional ballast water tank structure;

2. the ballast water tank between the shipboard is made of titanium alloy, the specific gravity of the titanium alloy is greatly reduced compared with that of steel, the structural weight is reduced, and the ballast water tank is particularly favorable for a large-depth diving system. Compared with steel, the titanium alloy has stronger corrosion resistance, and relieves the corrosion problem of ballast water tanks among the boards to a certain extent.

The invention further provides a diving system.

Referring to fig. 2 to 10, in the preferred embodiment, the diving system comprises an inter-board ballast water tank based on titanium alloy, and further comprises a main pressure casing, wherein a pressure casing toggle plate 14 is fixed on the main pressure casing (the pressure casing toggle plate 14 is welded on the main pressure casing), a stud 13 penetrates through the pressure casing toggle plate 14 of the main pressure casing and the connecting toggle plate 10 to movably connect the two, and a nut 12 is sleeved on the tail part of the stud 13. The pressure shell toggle plate 14 and the connecting toggle plate 10 are both provided with a stud 13 hole. The specific structure and beneficial effects of the titanium alloy-based ballast water tank between the ship boards refer to the above embodiments, and are not described in detail herein. The pressure casing brackets 14 are four in number, and two at the top and bottom are welded to the main pressure casing. The upper and lower parts of the connecting toggle plate are respectively provided with one connecting toggle plate and welded on the longitudinal girder plate 9. If the main pressure casing is made of titanium alloy, the arc-shaped toggle plate can be made of titanium alloy, and if the main pressure casing is made of steel, the arc-shaped toggle plate can be made of titanium steel composite plates.

In the concrete method, three stud fixing rings 11 are provided, one of the three stud fixing rings is welded on the connecting toggle plate 10, the other two stud fixing rings are welded on the pressure shell toggle plate 14, and the three stud fixing rings 11 are concentric and are fixed together by nuts 12 and studs 13. So that the ballast water tank can perform slight rotation around the stud 13, thereby reducing the additional stress caused by deformation coordination.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are intended to be covered by the scope of the present invention.