CN-121990103-A - Detachable type swinging bulkhead structure for underwater test platform and installation method

CN121990103ACN 121990103 ACN121990103 ACN 121990103ACN-121990103-A

Abstract

The invention discloses a detachable oscillating bulkhead structure for an underwater test platform and an installation method, and relates to the technical field of oscillating cabins. The structure comprises a spherical pressure-resistant cabin, cross-shaped supporting sectional materials, cross-shaped cross plates, cabin wall plate groups and lap joint connecting assemblies, wherein an access channel is radially arranged on the pressure-resistant cabin, ear plates are fixed on the inner wall of the pressure-resistant cabin, the supporting sectional materials are arranged at the bilge, the cross plates are radially arranged on the supporting sectional materials, the cabin wall plate groups are formed by splicing a plurality of narrow webs, one end of each cabin wall plate group is connected with the cross plate, the other end of each cabin wall plate group is connected with the ear plates, detachable connection is realized through the lap joint plates and the bolt groups, the width of each cabin wall plate is smaller than the diameter of the access channel, gaps are reserved between the end parts and the bulkhead, and all components are prefabricated outside the cabin for corrosion prevention. During installation, the components are transported into the cabin, and support sections, positioning and installing cross plates and cabin wall plate groups are welded in sequence. The invention is suitable for a spherical narrow space, is convenient to install and small in welding amount, can effectively divide the liquid tank to inhibit the free liquid level, improves the stability of the platform, and meets the requirement of frequent refitting of the underwater test platform.

Inventors

JING YIFAN
PENG LIANGBIN
MA LIBIN

Assignees

中国船舶科学研究中心

Dates

Publication Date: 20260508
Application Date: 20260324

Claims (10)

1. A removable bulkhead structure for an underwater test platform, comprising: the pressure-resistant cabin is of a spherical structure, an access passage is formed in the radial direction of the pressure-resistant cabin, and an ear plate is fixedly connected to the inner wall of the pressure-resistant cabin; the number of the support sections is two, the support sections are fixedly arranged on the inner wall of the pressure-resistant cabin in a cross shape, and the perpendicular bisectors of the support sections and the central axis of the access channel are positioned on the same straight line; The cross plates are crossed and arranged in a cross shape and are correspondingly arranged on the support section bar along the radial direction of the pressure cabin; the cabin wall plate group is formed by splicing a plurality of cabin wall plates side by side in the width direction, one end of each cabin wall plate group is connected to the outer wall of the extending side of the cross plate in the cross direction, and the other end of each cabin wall plate group is connected to the corresponding ear plate.
2. The removable bulkhead structure for an underwater test platform of claim 1, wherein the width dimension of the bulkhead plate is less than the diameter of the access passage.
3. The detachable bulkhead structure for an underwater test platform of claim 1, wherein the bulkhead plate group includes a longitudinal bulkhead plate group formed by a plurality of longitudinal bulkhead plates being spliced side by side in a width direction and two transverse bulkhead plate groups formed by a plurality of transverse bulkhead plates being spliced side by side in the width direction.
4. The detachable bulkhead structure for an underwater test platform of claim 1, further comprising a lap joint assembly, the lap joint assembly comprising a plurality of lap plates and a bolt set, the lap plates covering a seam between two adjacent bulkhead plates and being connected by the bolt set.
5. The detachable oscillating bulkhead structure for an underwater test platform of claim 4, wherein the lap plates are plate-like structures of different lengths and are arranged on two sides of a bulkhead plate joint; the arrangement direction of the lapping plates is transverse or oblique.
6. The detachable swinging bulkhead structure for an underwater test platform of claim 4, wherein the bolt set adopts a double-layer nut locking structure, penetrating through the lapping plate and the bulkhead plate; The lapping plate is detachably connected with the cabin wall plate.
7. The detachable oscillator bulkhead structure for an underwater test platform according to claim 1, wherein the ear plates are located on extending sides of a cross plate in a cross direction, and two ear plates are disposed on each extending side of the cross plate in an up-down distribution.
8. The detachable oscillating bulkhead structure for an underwater test platform of claim 1, wherein the bottom of the bulkhead plate set is fixed to the support profile by welding; and a gap is reserved between the end part of the bulkhead plate group and the inner wall of the pressure-resistant cabin.
9. The detachable oscillating bulkhead structure for an underwater test platform of claim 1, wherein the bulkhead plate assembly, the lap plates, the support profiles and the main body structure of the ear plates all perform the cutting process and the corrosion-resistant coating process outside the pressure-resistant cabin.
10. A method of installing a removable bulkhead structure for an underwater test platform according to any one of claims 1 to 9, comprising the steps of: s1, transporting a detachable bulkhead component to the inside of a pressure cabin through an access passage; S2, measuring a set distance upwards from the central point of the bottom of the pressure-resistant cabin, and welding the support profile in the pressure-resistant cabin; S3, connecting the cross plates on the supporting section bar, preliminarily installing the longitudinal bulkhead plate and the transverse bulkhead plate by using the lap plates and the bolt groups, pre-twisting two groups of end parts of the bolt groups of each sheet body in the vertical direction, visually installing the cross plates after the preliminary installation is finished, observing the gaps between the edges of the bulkhead plate and the spherical shells, and ensuring proper arrangement in the longitudinal and transverse directions; S4, spot-welding the bottom of the cabin wall plate on the supporting section bar, spot-welding the lug plate on the spherical shell, respectively arranging the lug plate at the upper and lower positions of the cabin wall plate body, matching the end plate body with the holes, and connecting the end plate body with the holes by using the bolt group; S5, full-welding the lug plates, and installing the residual lapping plates and the bolt groups S6, paint repair is carried out on the welding position, and a welding slag cleaning site is cleaned.

Description

Detachable type swinging bulkhead structure for underwater test platform and installation method Technical Field The invention relates to the technical field of oscillation cabins, in particular to a detachable oscillation cabin wall structure for an underwater test platform and an installation method. Background The bulkhead is widely applied to the fields of ships and diving equipment, is used for reducing free liquid level and improving stability of a platform, is generally welded in the tank, is provided with reinforcing ribs and holes, and can be not arranged when the stability of the platform is enough. In the actual lake test process, replacement and transformation of carrying equipment can be realized, and the situation of overall stability reduction of a platform can be realized, so that the feasible oscillation bulkhead structure with convenient installation, short transformation period and low transformation cost is provided, the stability loss of the platform can be effectively compensated, and the safety of the platform is ensured. Therefore, a detachable bulkhead structure for an underwater test platform and an installation method are provided. Content of the application Based on the structure and the installation method, the technical problems that the stability of the underwater test platform is reduced in the equipment replacement and transformation process, the traditional oscillation bulkhead is inconvenient to install, the transformation period is long, and equipment such as sensors in the cabin are easy to damage are necessarily solved, and the detachable oscillation bulkhead structure and the installation method for the underwater test platform are provided, so that the stability loss of the underwater test platform can be effectively compensated when the equipment replacement and the structural transformation are frequently carried out and the test working conditions of different water areas are frequently carried out on the underwater test platform, the safety of the platform is ensured, the convenient installation and the disassembly of the oscillation bulkhead are realized, and the damage to the original precision equipment in the cabin is reduced. The application provides a detachable type bulkhead structure for an underwater test platform, which comprises a pressure-resistant cabin, two supporting sections, cross-shaped cross plates, a plurality of bulkhead plate groups, wherein the pressure-resistant cabin is of a spherical structure, an access channel is formed in the radial direction of the pressure-resistant cabin, ear plates are fixedly connected to the inner wall of the pressure-resistant cabin, the number of the supporting sections is two, the cross-shaped cross plates are fixedly arranged on the inner wall of the pressure-resistant cabin, the perpendicular bisectors of the supporting sections and the central axis of the access channel are in the same straight line, the cross plates are arranged in a cross-shaped cross manner and are correspondingly arranged on the supporting sections along the radial direction of the pressure-resistant cabin, the plurality of the bulkhead plate groups are formed by splicing a plurality of bulkhead plates side by side in the width direction, one end of each bulkhead plate group is connected to the outer wall of the extending side of the cross direction of the cross plate, and the other end of each bulkhead plate group is connected to the ear plates. The structure breaks through the limitation that the integral welding forming of the traditional swinging bulkhead can not be flexibly adjusted through modularized disassembly and detachable connection design, can quickly complete assembly and disassembly according to the stability requirement, load change and test scene difference of the underwater test platform, greatly improves the flexibility of the improvement and upgrading of the underwater platform while guaranteeing the swinging effect, and fully fits the cabin structural characteristics of the underwater test platform due to the fact that the integral structure is adapted to the special curved surface space of the spherical pressure-resistant cabin, and avoids the problems of low swinging efficiency or difficult installation and the like caused by poor structural suitability. In other embodiments, the width-wise dimension of the bulkhead plate is less than the diameter of the access passage. The spherical pressure cabin of this size design adaptation narrow and small construction space and transportation condition make monolithic cabin wallboard can be light through the transport of access, need not the split cabin body or destroy original structure, and small-size monolithic cabin wallboard light in weight need not to be installed by artifical transport with the help of lifting means, does not have the construction condition of large-scale operation equipment in the spherical cabin of adaptation, reduces construction degree of difficu