A compartment structure for verifying the deformation coordination capability of a typical sea-going pipeline system

Abstract

The present invention discloses a compartment structure suitable for verifying the deformation coordination capability of a typical seagoing pipeline system. The compartment structure comprises a pressure hull plate and pressure hull ribs with dimensions identical to those of an actual ship, thickened pressure hull rings at both ends of the pressure hull plate; oversized ribs at both ends of the compartment structure, spaced the same as the distance between the bulkheads of an underwater vehicle; the platform structure is mounted near the port and starboard horizontal centerlines of the pressure hull plate; the simulated internal liquid tank structure comprises the front and rear transverse walls of the internal liquid tank; pressure hull side valve mountings are mounted on the pressure hull plate; internal liquid tank transverse bulkhead piping mountings are mounted on the transverse walls of the simulated internal liquid tank structure; and bulkhead piping mountings are mounted on the webs of the oversized ribs. The present invention can provide the most direct basis for verifying the deformation compensation capability of a displacement compensation device in a typical seagoing pipeline system at extreme depths.

Description

Technical Field

[0001] The present invention relates to the technical field of hull structures, and in particular to a compartment structure that can be used to verify the effectiveness of deformation coordination measures of a typical seagoing pipeline system. Background Art

[0002] The sea access system is an essential component of an underwater vehicle, used at full depth. The main drain system is the most complex, extensively distributed, and largest-diameter sea access system onboard. The cooling system, on the other hand, is the most frequently used and most frequently used sea access system onboard. The proper operation of the sea access system is essential for the safety of the underwater vehicle. If the pressure-resistant hull deforms and damages the sea access piping under deepwater pressure, it can seriously compromise the safety of the underwater vehicle at deep depths. The sea access system takes into account the actual ship's layout. Typical deformation points in the system's piping include: piping between bulkheads, side valves and subsequent pipe sections, connections between equipment and rafts and piping, and embedded pipes in internal tanks. When an underwater vehicle dives to depth, the hull structure contracts and deforms under pressure, causing relative displacement between the ends of the fixed piping. This relative displacement can cause pipe deformation, compromise sealing, or even rupture, compromising the safety of the sea access piping system and, consequently, the safety of the underwater vehicle. At the same time, the non-uniform deformation of the hull structure is relatively complex. Therefore, it is necessary to comprehensively verify the deformation coordination ability of the seagoing pipeline system under the real deformation conditions of the real load of the real-scale compartment structure, verify the rationality of setting up the displacement compensation device in the pipeline system, and verify the deformation compensation ability of the displacement compensation device at the extreme depth.

[0003] In addition, with the development of test support conditions, the large-scale external pressure test equipment was delivered and put into use as planned, and the conditions for conducting external pressure tests on full-scale compartment models of underwater vehicles have been met.

[0004] In view of this, the present invention proposes a compartment structure that can be used to verify the effectiveness of deformation coordination measures of a typical seagoing pipeline system. By carrying out verification tests on this basis, it is possible to verify the rationality of setting up a displacement compensation device in the pipeline system under real deformation conditions of real loads of the real-scale compartment structure, as well as the deformation compensation capability of the displacement compensation device at extreme depths. Summary of the Invention

[0005] The main purpose of the present invention is to provide a compartment structure that can be used to verify the deformation coordination capability of a typical sea-going pipeline system. The compartment structure is suitable for testing in a large-scale external pressure test device, and can assess the deformation compensation capability of the displacement compensation device of the sea-going pipeline system at extreme depths under the real deformation conditions of the real load of the full-scale compartment structure.

[0006] The technical solution adopted in the present invention is:

[0007] A cabin structure for verifying the deformation coordination capability of a typical seagoing pipeline system includes a pressure hull shell and a pressure hull rib, the dimensions of which are the same as those of an actual ship structure. The cabin structure also includes end thickened pressure hull rings, oversized ribs, a platform structure, a simulated internal liquid tank structure, a pressure hull side valve mounting part, an internal liquid tank transverse bulkhead pipeline mounting part, and a bulkhead pipeline mounting part. The end thickened pressure hull rings are provided at both ends of the pressure hull shell; the oversized ribs are provided at both ends of the cabin structure, and two oversized ribs are provided. The distance between the two ribs is the same as the distance between the two bulkheads of the underwater vehicle; the platform structure is installed near the horizontal center line of the left and right sides of the pressure hull shell, and the platform structure is used to install system equipment; the simulated internal liquid tank structure is arranged at the bottom of the cabin, including the front and rear transverse wall plates of the internal liquid tank, and the thickness and height of the transverse wall plates are consistent with those of the actual ship; the pressure hull side valve mounting parts are arranged on the pressure hull shell; the internal liquid tank transverse bulkhead pipeline mounting parts are arranged on the transverse wall plates of the simulated internal liquid tank structure; the bulkhead pipeline mounting parts are arranged on the web of the super-large ribs.

[0008] In the above solution, the pressure hull shell is a cylindrical shell structure.

[0009] In the above solution, the thickness of the end thickened pressure shell ring is 1.5-2 times the thickness of the pressure hull shell; the length of the end thickened pressure shell ring is not less than 1 times the rib spacing.

[0010] In the above solution, the moment of inertia of the super-large rib is greater than 40 times the moment of inertia of the pressure hull rib.

[0011] In the above solution, a number of anti-tilt brackets are provided around the circumference of the super-large rib.

[0012] In the above solution, the extra-large ribs are installed on the end thickened pressure-resistant shell ring.

[0013] In the above solution, the distance between the front and rear transverse wall plates of the simulated internal liquid tank structure is equal to the distance between the front and rear bulkhead plates of a typical internal liquid tank in an actual ship.

[0014] In the above solution, the front and rear transverse wall plates of the simulated internal liquid tank structure are both provided with brackets for reinforcement.

[0015] In the above solution, the platform structure includes a platform frame and a platform base, the panels and brackets of the platform base are firmly welded to the pressure hull ribs, and the platform frame and the platform base are connected by bolts.

[0016] In the above scheme, the pressure hull side valve mounting parts, internal liquid tank transverse bulkhead pipeline mounting parts and bulkhead pipeline mounting parts are respectively used for connecting pipelines of the sea-going system, and the specific position of each mounting part is determined according to the layout of the sea-going pipeline system.

[0017] The beneficial effects produced by the present invention are:

[0018] The cabin structure of the present invention has the same dimensions as the actual ship's structural parameters for the pressure hull shell and pressure hull ribs, ensuring simulation of realistic deformation of underwater vehicles. Thickened pressure hull rings are provided at both ends of the pressure hull shell to avoid high stress concentration when loaded after welding test heads at both ends. The use of two oversized ribs to simulate the subdivision of the internal bulkhead greatly simplifies the bulkhead structure, thereby reducing the amount of construction. The cabin structure of the present invention uses the actual structural parameters of an actual ship and can accurately produce realistic deformation when using a large external pressure test device to simulate the actual load of the actual ship. The deformation compensation measures for pipelines with one end connected to a device and the other end fixed to the pressure hull shell are verified by providing a platform structure; the deformation compensation measures for the side valves and subsequent pipe sections are verified by providing a pressure hull side valve mounting piece; the deformation compensation measures for the internal liquid tank transverse bulkhead pipe mounting piece is verified by providing an internal liquid tank embedded pipe; and the deformation compensation measures for the pipelines between the two bulkheads are verified by providing a bulkhead pipe mounting piece. Therefore, the present invention can provide the most direct basis for verifying the deformation compensation capability of the displacement compensation device of a typical seagoing pipeline system at extreme depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 is a plan view schematically showing a cabin structure of a full-scale underwater vehicle according to an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A longitudinal section of the compartment structure shown;

[0022] Figure 3 yes Figure 1 A cross-sectional view of the platform structure area showing the compartment structure;

[0023] Figure 4 yes Figure 1 A cross-sectional view of the super-large rib of the cabin structure is shown.

[0024] Figure 1: 1. Thickened pressure hull ring at the end; 2. Extra-large ribs; 3. Anti-roll brackets; 4. Pressure hull ribs; 5. Pressure hull shell plating; 6. Platform structure; 7. Simulated internal tank structure; 8. Pressure hull side valve mountings; 9. Internal tank transverse bulkhead piping mountings; 10. Bulkhead piping mountings. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] It should be noted that the illustrations provided in the embodiments of the present invention are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0027] In the present invention, it should also be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present application and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used solely for descriptive and distinguishing purposes and should not be construed as indicating or implying relative importance.

[0028] like Figure 1-4The figure shows a compartment structure for verifying the deformation coordination capability of a typical seagoing pipeline system, provided by an embodiment of the present invention. The structure comprises a pressure hull plating 5 and pressure hull ribs 4. The dimensions of the pressure hull plating 5 and pressure hull ribs 4 are identical to those of the actual ship structure. These identical structural parameters ensure realistic deformation simulation of underwater vehicles. The compartment structure also includes a thickened end pressure hull ring 1, oversized ribs 2, a platform structure 6, a simulated internal tank structure 7, pressure hull side valve mountings 8, internal tank transverse bulkhead piping mountings 9, and bulkhead piping mountings 10. The thickened end pressure hull rings 1 are located at both ends of the pressure hull plating 5. The presence of these thickened pressure hull rings at both ends prevents high stress concentrations when the test heads are welded together and subjected to load. Oversized ribs 2 are located at both ends of the compartment structure, with the distance between the two oversized ribs 2 being the same as the distance between the two bulkheads of an underwater vehicle. The oversized ribs 2 simulate the subdivision effect of the internal bulkheads. Since the bulkhead structure is too complex and the construction workload is large, the present invention uses super-large ribs 2 to greatly simplify the bulkhead structure, thereby reducing the construction workload. The platform structure 6 is installed near the horizontal centerline of the port and starboard sides of the pressure hull shell 5. The platform structure 6 is used to install system equipment. This is used to verify the deformation compensation measures of the pipeline with one end connected to the equipment and the other end fixed on the pressure hull shell 5. The simulated internal liquid tank structure 7 is set at the bottom of the cabin, and only the front and rear transverse wall plates of the internal liquid tank are retained. The thickness and height of the transverse wall plates are consistent with the actual ship. The pressure hull side valve mounting parts 8 are set on the pressure hull shell 5 for connecting the pipeline to the sea system. The positions of the inlet and outlet side valve mounting parts of the sea pipeline are distributed according to the requirements of the sea system to verify the deformation compensation measures of the side valves and subsequent pipe sections. Internal tank transverse bulkhead piping fixtures 9 are installed on the transverse wall panels simulating the internal tank structure 7 for connecting piping to the sea-access system. The specific location of these fixtures is determined based on the layout of the sea-access piping system to verify the deformation compensation measures for the pre-buried pipes in the internal tanks. Bulkhead piping fixtures 10 are installed on the webs of the oversize frames 2 for connecting piping to the sea-access system. The specific location of these fixtures is determined based on the layout of the sea-access piping system. Piping is installed between two oversize frames 2 to verify the deformation compensation measures for the piping between the two bulkheads.

[0029] The compartment structure of the present invention is installed with a typical seagoing pipeline system in the compartment according to the actual ship installation method, which can comprehensively verify the deformation coordination ability of the typical seagoing pipeline system, verify the rationality of setting the displacement compensation device in the pipeline system, and verify the deformation compensation ability of the displacement compensation device at the extreme depth.

[0030] In one embodiment of the present invention, the pressure hull plate 5 is a cylindrical shell structure.

[0031] In one embodiment of the present invention, the thickness of the end thickened pressure shell ring 1 is 1.5-2 times the thickness of the pressure hull shell 5; the length of the end thickened pressure shell ring 1 is not less than 1 times the rib spacing.

[0032] In one embodiment of the present invention, the moment of inertia of the super-large rib 2 is greater than 40 times the moment of inertia of the pressure hull rib 4.

[0033] In one embodiment of the present invention, in order to ensure that the super-large rib 2 does not tilt, a plurality of anti-tilt brackets 3 are provided around the super-large rib 2 .

[0034] In one embodiment of the present invention, the super-large ribs 2 are installed on the end-thickened pressure shell ring 1 .

[0035] In one embodiment of the present invention, the distance between the front and rear transverse wall plates of the simulated internal liquid tank structure 7 is equal to the distance between the front and rear bulkhead plates of a typical internal liquid tank in an actual ship.

[0036] In one embodiment of the present invention, the front and rear transverse wall plates of the simulated internal liquid tank structure 7 are both provided with brackets for reinforcement.

[0037] In one embodiment of the present invention, the platform structure 6 comprises a platform frame and a platform base. The platform base's panels and brackets are securely welded to the pressure hull ribs 4, and the frame and base are bolted together. This specific connection design, similar to that used for the internal platform of an underwater vehicle, reduces the impact of radial compression of the pressure hull plating 5 on the platform.

[0038] In one embodiment of the present invention, the pressure hull plating 5, pressure hull ribs 4, end thickened pressure hull rings 1, and oversized ribs 2 are all manufactured from the same high-strength steel used in underwater vehicle pressure hulls and are welded together. Using the same structural dimensions and materials as the actual ship, the model is consistent with the actual ship, ensuring the most realistic simulation of pressure hull deformation under actual deepwater pressure conditions.

[0039] It should be noted that the feasibility of testing the full-scale cabin structure in a large external pressure test device must be fully considered. An appropriate distance must be left between the periphery and the wall of the test device to ensure the installation of the transport track and trolley at the bottom of the external pressure test device, to ensure the limitation of the test device in the length direction, etc., to ensure the feasibility of the model test.

[0040] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, or two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0041] The size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0042] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A compartment structure for verifying the deformation coordination capability of a typical seagoing pipeline system, comprising a pressure hull plate and a pressure hull rib, characterized in that: The dimensions of the pressure hull shell and the pressure hull ribs are the same as the actual ship structure parameters; the compartment structure also includes end thickened pressure shell rings, super-large ribs, a platform structure, a simulated internal liquid tank structure, a pressure hull side valve mounting part, an internal liquid tank transverse bulkhead pipeline mounting part and a bulkhead pipeline mounting part; the end thickened pressure shell rings are arranged at both ends of the pressure hull shell; the super-large ribs are arranged at both ends of the compartment structure, and the distance between the two super-large ribs is the same as the distance between the two bulkheads of the underwater vehicle; The platform structure is installed near the horizontal center line of the left and right sides of the pressure hull shell, and the platform structure is used to install system equipment; the simulated internal liquid tank structure is arranged at the bottom of the tank, including the front and rear transverse wall plates of the internal liquid tank, and the thickness and height of the transverse wall plates are consistent with the actual ship; the pressure hull side valve mounting parts are arranged on the pressure hull shell; the internal liquid tank transverse bulkhead pipeline mounting parts are arranged on the transverse wall plates of the simulated internal liquid tank structure; the bulkhead pipeline mounting parts are arranged on the web of the super-large rib.

2. The compartment structure for verifying the deformation coordination capability of a typical seagoing pipeline system according to claim 1 is characterized in that: The pressure hull shell is a cylindrical shell structure.

3. The compartment structure for verifying the deformation coordination capability of a typical sea-going pipeline system according to claim 1 is characterized in that: The thickness of the end thickened pressure hull ring is 1.5-2 times the thickness of the pressure hull shell; the length of the end thickened pressure hull ring is not less than 1 times the rib spacing.

4. The compartment structure for verifying the deformation coordination capability of a typical sea-going pipeline system according to claim 1 is characterized in that: The moment of inertia of the super-large rib is greater than 40 times the moment of inertia of the pressure hull rib.

5. The compartment structure for verifying the deformation coordination capability of a typical seagoing pipeline system according to claim 1 is characterized in that: A plurality of anti-tilt brackets are provided around the circumference of the super-large rib.

6. The compartment structure for verifying the deformation coordination capability of a typical sea-going pipeline system according to claim 1 is characterized in that: The extra-large ribs are mounted on the end thickened pressure-resistant shell ring.

7. The compartment structure for verifying the deformation coordination capability of a typical sea-going pipeline system according to claim 1 is characterized in that: The distance between the front and rear transverse wall plates of the simulated internal liquid tank structure is equal to the distance between the front and rear bulkhead plates of a typical internal liquid tank in an actual ship.

8. The compartment structure for verifying the deformation coordination capability of a typical sea-going pipeline system according to claim 1 is characterized in that: The front and rear transverse wall plates of the simulated internal liquid tank structure are both provided with brackets for reinforcement.

9. The compartment structure for verifying the deformation coordination capability of a typical sea-going pipeline system according to claim 1 is characterized in that: The platform structure includes a platform plate frame and a platform base. The panel and bracket of the platform base are firmly welded to the pressure hull ribs. The platform plate frame and the platform base are connected by bolts.

10. The compartment structure for verifying the deformation coordination capability of a typical sea-going pipeline system according to claim 1 is characterized in that: The pressure hull side valve mounting parts, the internal liquid tank transverse bulkhead pipeline mounting parts and the bulkhead pipeline mounting parts are respectively used for connecting pipelines of the sea-going system, and the specific position of each mounting part is determined according to the layout of the sea-going pipeline system.

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