阅读说明：本技术 一种b型储舱分体式次屏壁 (B-type storage cabin split type secondary screen wall ) 是由 张义明 常立勇 于世旭 马俊 张梅 于峰 王昆鹏 张祺 钱静 于 2021-08-19 设计创作，主要内容包括：一种B型储舱分体式次屏壁,分体式次屏壁通过垂向支撑位于主屏壁与船体结构之间。分体式次屏壁包括轴撑区,轴撑区整体呈十字型,轴撑区的横向轴承与B型舱底部横向中心轴线相平行,轴撑区的纵向轴撑与B型舱底部纵向中心轴线相平行,横向轴撑与纵向轴撑上等间距设置有多个向下凹陷的集液槽。或者分体式次屏壁包括轴撑区和侧撑区,侧撑区呈方形,侧撑区与轴撑区柔性连接,侧撑区与轴撑区通过垂向支撑固定在主屏壁与船体结构之间。本发明的这种分体式次屏壁,其根据疲劳及裂纹扩展分析结果,轴撑区与侧撑区可以自由组合形成任意形状的次屏壁,灵活设置轴撑区和侧撑区,将次屏壁设置在所需位置,节省材料,降低成本。(A split type secondary screen wall of a B-type storage cabin is positioned between a main screen wall and a ship structure through vertical support. The split type secondary screen wall comprises an axle support area, the axle support area is overall cross-shaped, a transverse bearing of the axle support area is parallel to a transverse central axis of the bottom of the B-type cabin, a longitudinal axle support of the axle support area is parallel to a longitudinal central axis of the bottom of the B-type cabin, and a plurality of liquid collecting grooves which are sunken downwards are arranged on the transverse axle support and the longitudinal axle support at equal intervals. Or the split secondary screen wall comprises an axial bracing region and a side bracing region, the side bracing region is square, the side bracing region is flexibly connected with the axial bracing region, and the side bracing region and the axial bracing region are vertically supported and fixed between the main screen wall and the hull structure. According to the split type secondary screen wall, the shaft support area and the side support area can be freely combined to form the secondary screen wall in any shape according to the fatigue and crack propagation analysis result, the shaft support area and the side support area are flexibly arranged, and the secondary screen wall is arranged at a required position, so that the material is saved, and the cost is reduced.)

1. The utility model provides a B type stores up split type secondary screen wall in cabin, B type store up the cabin and are located hull structure (8), and B type stores up the cabin and has main screen wall (6), its characterized in that: the split type secondary screen wall (7) comprises an axle support area (1), the axle support area is overall cross-shaped and is positioned below the B-type storage cabin, a transverse axle support of the axle support area is parallel to a transverse central axis of the bottom of the B-type cabin, and a longitudinal axle support of the axle support area is parallel to a longitudinal central axis of the bottom of the B-type cabin;

a plurality of liquid collecting grooves (3) which are sunken downwards are arranged on the transverse shaft support and the longitudinal shaft support at equal intervals, the liquid collecting grooves on the transverse shaft support are vertical to the transverse shaft support, and the liquid collecting grooves on the longitudinal shaft support are vertical to the longitudinal shaft support;

or split type secondary screen wall includes axle support district (1) and side support district (2), the side support district is squarely, the side support position in horizontal axle support with the sunken department that vertical axle support intersected formation, the side support district with axle support district flexonics, the side support district with the axle support district is fixed through vertical support the main screen wall with between the hull structure.

2. The split type secondary screen wall of the B-type storage cabin of claim 1, wherein: the split type secondary screen wall is an axial support area, or an axial support area and a side support area, or an axial support area and more than one side support area.

3. The split type secondary screen wall of the B-type storage cabin of claim 1, wherein: the utility model discloses a heat-insulating buffer material, including axle brace district, side brace district, axle brace district edge, the side brace district edge kickdown is "U" type, the side brace district with one side that the axle brace district is connected (for short side brace district connection side) kickdown is the arc, axle brace district edge is located the below of side brace district connection side, axle brace district edge with it has thermal-insulated buffer material (5) to bond between the side brace district connection side.

4. The split type secondary screen wall of the B-type storage cabin of claim 1, wherein: the lower surface of the main screen wall, the transverse central axis and the longitudinal central axis of the main screen wall are fixedly provided with a plurality of limiting parts (4) at equal intervals, the limiting parts correspond to the positions of the liquid collecting grooves, and the limiting parts are inserted into the liquid collecting grooves and are suspended in the liquid collecting grooves.

5. The split type secondary screen wall of the B-type storage cabin of claim 1, wherein: the side support area is far away from one side connected with the shaft support area, and the end part of the side support area is bent upwards to form an arc shape.

6. The split type secondary screen wall of the B-type storage cabin of claim 3, wherein: the heat-insulating buffer material is wood blocks or polytetrafluoroethylene or nitrile rubber.

7. The split type secondary screen wall of the B-type storage cabin of claim 3, wherein: the distance between the connecting side of the side support area and the edge of the shaft support area is 40-200 mm.

8. The split type secondary screen wall of the B-type storage cabin, according to claim 4, is characterized in that: the limiting parts are in a straight shape or a cross shape, the straight limiting parts are fixed on the transverse central axis and the longitudinal central axis at the bottom of the main screen wall at equal intervals, and the cross limiting parts are fixed at the intersection of the transverse central axis and the longitudinal central axis at the bottom of the main screen wall.

9. The split type secondary screen wall of the B-type storage cabin of claim 1, wherein: and corner transition or fillet transition is adopted at the intersection of the transverse shaft support and the longitudinal shaft support.

10. The split secondary wall of a type-B storage compartment of claim 9, wherein: the angle of the corner transition is 45 degrees, and the radius of the fillet transition is 500-2000 mm.

Technical Field

The invention relates to the field of ship construction and design, in particular to a secondary screen wall which is required to be arranged aiming at a B-type storage cabin in a ship.

Background

According to the requirements of IMO IGC/IGF, the setting of the secondary screen wall of the B-type cabin is based on the fatigue and crack propagation analysis results to determine a high-risk area where low-temperature liquid leakage occurs, evaluate the leakage amount of the low-temperature liquid, and reasonably design the form of the secondary screen wall so as to meet the requirement of collecting and containing the leaked liquid for 15 days.

The existing secondary screen wall design mode is an integral design, the secondary screen wall is integrally fixed in a ship body, the secondary screen wall is difficult to install, a lifting point is difficult to fix during lifting, and the integral stability is difficult to control in the lifting process. When low-temperature shrinkage occurs, the secondary screen wall steel plate is easy to shrink and deform unevenly, so that the trend of wrinkle failure is generated, the secondary screen wall is difficult to replace and control. Can produce in the hull motion process and last vibrations, whole secondary screen wall structure itself lacks buffering and absorbing device, and secondary screen wall steel sheet can produce the inhomogeneous condition of deformation equally.

The existing integral secondary screen wall is fixed between the main screen wall and a ship structure through a slidable vertical support, the ship motion can generate horizontal load, and the load of the ship motion easily enables the vertical support to continuously slide under the normal shipping condition, so that the safety of a structural system is threatened.

Disclosure of Invention

In order to solve the problems, the invention provides a B-type storage cabin split type secondary screen wall, aiming at achieving the purposes of convenient installation, flexible use and strong stability, and the adopted technical scheme is as follows:

the utility model provides a B type stores up split type secondary screen wall in cabin, B type store up the cabin and lie in hull structure, B type store up the cabin and have main screen wall, split type secondary screen wall includes the axle support district, the axle support district is whole to be cross, is located B type stores up the cabin below, the horizontal axle support in axle support district with the horizontal central axis of B type cabin bottom parallels, the longitudinal axis in axle support district props with the longitudinal central axis of B type cabin bottom parallels. The horizontal shaft support and the longitudinal shaft support are provided with a plurality of liquid collecting grooves which are sunken downwards at equal intervals, the liquid collecting grooves in the horizontal shaft support are vertical to the horizontal shaft support, and the liquid collecting grooves in the longitudinal shaft support are vertical to the longitudinal shaft support.

Or split type secondary screen wall includes axle support district and side support district, the side support district is squarely, the side support position in horizontal axle support with the sunken department that vertical axle support intersected formation, the side support district with axle support district flexonics, the side support district with the axle support district is fixed through vertical support the main screen wall with between the hull structure.

The secondary screen wall is a split type secondary screen wall, and specifically comprises an axial support area and a side support area, wherein the axial support area can be used independently, or the axial support area can be spliced with one side support area, or the axial support area can be spliced with more than one side support area to form the secondary screen wall. Because this kind of components of a whole body structure in axle brace district and side brace district has divided into a plurality of miniature individualities with a large-scale whole, uses in a flexible way, and change when easy to assemble and damage also reduce cost simultaneously. The axle supports the district and is split type secondary screen's main component, and the horizontal axle that the horizontal axle in axle supports the district and vertical axle supports respectively with B type stores up the horizontal axis and the vertical axis of cabin owner screen bottom corresponding, and the axle supports the district and is in main screen bottom central point and puts, and it can cover B type and store up the high dangerous leakage area that most portions stored up the cabin.

In the above B-type storage cabin split type secondary screen wall, further, the split type secondary screen wall is an axial support area, or an axial support area and a side support area, or an axial support area and more than one side support area. The shaft support area and the side support area can be combined at will, and different secondary screen wall schemes can be adopted according to different analysis results of fatigue and crack propagation.

Above-mentioned split type secondary screen wall in B type storage compartment, further, the axial strut district edge kickdown is "U" type, the lateral strut district with one side that the axial strut district is connected (for short the lateral strut district link side) the kickdown is the arc, the axial strut district edge is located the below of lateral strut district link side, the axial strut district edge with it has thermal-insulated buffer material to bond between the lateral strut district link side. The heat insulation buffer material is an object with certain structural strength and certain softness, and is positioned at the joint of the side support area and the axial support area, between the side support area and the axial support area, when the secondary screen wall is affected by continuous vibration generated in the running process of a ship, the heat insulation buffer material receives the vibration, and the joint has certain flexibility due to flexible connection, so that the heat insulation buffer material can be compressed or slightly deformed to relieve the vibration force applied to the secondary screen wall, further the secondary screen wall is protected, and the secondary screen wall is prevented from being deformed due to the vibration of the ship.

Above-mentioned split type secondary screen wall in B type storage compartment, further, main screen wall lower surface, the horizontal axis of main screen wall and vertical axis equidistant a plurality of locating parts of being fixed with, the locating part with the catch basin position is corresponding, the locating part inserts in the catch basin unsettled in the catch basin. The locating part is suspended in the liquid collecting tank, when the vibration generated in the sailing process of the ship reaches the secondary screen wall, the secondary screen wall is driven to vibrate, and the locating part and the liquid collecting tank are combined to play a role in limiting and limit the secondary screen wall to move. The locating part combines together with the collecting tank and flexonics, makes the secondary screen wall have certain buffer capacity, promotes secondary screen wall structural stability, avoids the secondary screen wall to take place to warp or produce the fold because of vibrations in the navigation process.

Above-mentioned split type secondary screen wall in B type storage compartment, further, the side props the district and keeps away from with one side that the axle props the district and is connected, the tip kickup is the arc. After the side bracing region and the axle bracing region are spliced, the formed integral edge is in an arc shape which is bent upwards, and the leakage liquid of the B-type storage cabin can be contained and connected like a tray, so that the containing and connecting capacity of the high-order screen wall is further improved, and the safety of the B-type storage cabin is ensured.

In the above type-B storage cabin split type secondary screen wall, further, the heat insulation buffer material is wood block or polytetrafluoroethylene or nitrile rubber. The axle props district and side props the district and adopts flexonics, be at the object that axle props district and side props district junction bonding billet or rubber had certain structural strength and had certain softness again promptly, avoid adopting the produced stress concentration of rigid connection (like the welding), strengthened the toughness of inferior screen wall junction, and then strengthened the whole toughness of inferior screen wall, make inferior screen wall have certain buffer capacity, reduce the influence of the vibrations that boats and ships produced in the operation process to inferior screen wall. When a certain side supporting area is cooled and shrunk, the folds can be disconnected at the connecting part due to the flexible connection of the wood blocks or the rubber, and the main steel plate structure of the adjacent shaft supporting area can not be involved.

Above-mentioned split type secondary screen wall of B type storage compartment, further, the interval between side shoring district connection side and the axle shoring district edge is 40-200mm, side shoring district connection side arc bottom is apart from the axle shoring district edge.

Above-mentioned split type secondary screen wall in B type storage compartment, further, the locating part is a style of calligraphy or cross, a style of calligraphy locating part is equidistant to be fixed on the horizontal axis and the vertical axis of main screen wall bottom, a style of calligraphy locating part all sets up perpendicularly with horizontal axis, vertical axis, cross locating part is fixed the crossing department of horizontal axis and vertical axis in main screen wall bottom. The cross-shaped limiting part is arranged at the central position of the shaft support area and plays a role in bidirectional limiting. The limiting part is matched with the transverse shaft support in the shaft support area to achieve the longitudinal limiting effect, and the limiting part is matched with the longitudinal shaft support in the shaft support area to achieve the transverse limiting effect.

In the split type secondary screen wall of the B-type storage cabin, furthermore, the intersection of the transverse shaft support and the longitudinal shaft support adopts corner transition or fillet transition. The fillet is used as the connection transition of the transverse axle support and the longitudinal axle support, the stress level is low, and the stress state is good.

In the split type secondary screen wall of the B-type storage cabin, furthermore, the angle of the corner transition is 45 degrees, and the radius of the fillet transition is 500-2000 mm.

According to the split type secondary screen wall, the shaft support area and the side support area can be freely combined to form the secondary screen wall in any shape according to the fatigue and crack propagation analysis result, the shaft support area and the side support area are flexibly arranged, and the secondary screen wall is arranged at a required position, so that the material is saved, and the cost is reduced. The split type secondary screen wall adopts flexible connection, overcomes the rigidity limitation of the secondary screen wall, can release low-temperature shrinkage deformation and hull load, and can play a role in buffering and damping. The liquid collecting tank is combined with the limiting piece at the bottom of the main screen wall, so that the transverse and longitudinal loads of the ship body can be effectively resisted. The split type and flexible connection overcome the rigidity limitation of the secondary screen wall, can release low-temperature shrinkage deformation and hull load, and can play a role in buffering and damping.

Drawings

FIG. 1 is a schematic view of the construction of the bearing region of the present invention;

FIG. 2 is a schematic structural view of the present invention after the shaft support region is spliced with four side support regions;

FIG. 3 is a schematic side view of the axle support region;

FIG. 4 is a schematic view of a flexible connection;

wherein: 1-axle support area, 2-side support area, 3-liquid collecting tank, 4-limiting piece, 5-heat insulation buffer material, 6-main screen wall, 7-split type secondary screen wall, 8-hull structure and 9-vertical support.

Detailed Description

The invention is further explained with reference to the drawings.

Example 1

As shown in figure 1, the split type secondary screen wall of the B-type storage cabin is composed of shaft support areas 1, the whole shaft support area is of a cross structure, the shaft support areas are provided with transverse shaft supports and longitudinal shaft supports, the transverse shaft supports and the longitudinal shaft supports are crossed to form a cross shape and are fixedly connected, and the joints of the transverse shaft supports and the longitudinal shaft supports are in corner transition. The split type secondary screen wall 7 is fixed between the main screen wall 6 and the hull structure 8 of the B-type storage cabin through the vertical supports 9, and a space which is not less than 600mm is reserved between the secondary screen wall and the heat insulation layer of the main screen wall as well as between the secondary screen wall and the hull structure, so that maintenance, real-time monitoring and emergency treatment of constructors are facilitated.

The transverse shaft support is parallel to the transverse central axis at the bottom of the B-type storage cabin, and the longitudinal shaft support is parallel to the longitudinal central axis at the bottom of the B-type storage cabin. The transverse axle support and the longitudinal axle support are provided with liquid collecting grooves 3 (shown in figure 3) which are sunken downwards at equal intervals, and a liquid collecting groove is also arranged at the intersection of the transverse axle support and the longitudinal axle support. A plurality of limiting parts 4 are arranged on the transverse central axis and the longitudinal central axis of the bottom of the B-type storage cabin at equal intervals, and the positions of the limiting parts correspond to those of the liquid collecting tank. The limiting part has two forms, one limiting part is in a shape of a Chinese character 'yi', the other limiting part is in a shape of a Chinese character 'cross', and the limiting part is suspended and inserted into the liquid collecting tank. The B-type storage cabin is characterized in that linear limiting pieces are arranged on the transverse central axis and the longitudinal central axis at the bottom of the B-type storage cabin at equal intervals, and crossed limiting pieces are arranged at the crossed position of the transverse central axis and the longitudinal central axis. The limiting part is matched with the collecting tank to play a limiting role, namely when the ship generates vibration, the secondary screen wall is limited to be influenced by the ship vibration to generate position movement, so that the problems of deformation, damage and the like of the secondary screen wall are caused, and the transverse and longitudinal loads of the ship body are effectively resisted.

According to fatigue and crack propagation analysis results, the risk of leakage in the areas of the transverse central axis and the longitudinal central axis at the bottom of the non-B-type storage cabin is extremely low, or low-temperature liquid leakage hardly occurs, and only the cross-shaped shaft support area is arranged at the bottom of the B-type storage cabin, so that the material and the cost are further saved on the premise of controlling the risk of low-temperature liquid leakage. The shaft support area with the cross structure has good stability, is fixed on a ship structure, does not need to consider the problem of ship vibration, and when low-temperature contraction occurs, the secondary screen wall formed by the shaft support area with the cross structure only generates contraction quantity along the axial direction, so that the deformation is easy to control.

Example 2

As shown in fig. 2, the split secondary barrier is composed of an axial bracing region (the axial bracing region is as described in example 1) and four lateral bracing regions, wherein the lateral bracing regions are square, and are fixed between the main barrier and the hull structure through vertical support after being spliced with the axial bracing regions. The axle props the district and adopts flexible connection with the side props the district, as shown in figure 4, the side props the district and is located the axle props the district top, and the edge of axle props the district and bends upward and is "U" type, and side props the district and splices mutually with the axle props the district and bends downward and be the quarter arc, is connected through thermal-insulated buffer material between axle props the district and the side props the district, and thermal-insulated buffer material bonds between axle props district and side props the district. By adopting the flexible connection, the influence of the ship body vibration on the strength of the ship body and the ship body can be effectively weakened.

According to the fatigue and crack propagation analysis result, in the face of complex sea conditions, air routes with wider coverage and more complex structural connection forms, a scheme of splicing the shaft support area and the four side support areas is needed, the scheme is the safest scheme, and the scheme can guarantee the maintainability, the safety and the convenience of real-time monitoring of the secondary screen wall and the B-type cabin in the whole life cycle. By adopting the side supporting area structure, the size of the steel plate in the side supporting area is greatly reduced, and meanwhile, the low-temperature shrinkage deformation can be remarkably reduced by arranging the vertical support which is fixed and slides, and the structural stability is improved.

Example 3

The split type secondary screen wall is composed of a shaft support area and a part of side support areas (schematic diagrams are not given), and according to the analysis result of fatigue and crack propagation, if the risk of leakage of the side support areas is low, the part of side support areas can be arranged for safety, so that the balance of controlling the liquid leakage risk and saving the cost is realized. The structure and connection of the axial bracing region and the lateral bracing region are as described in embodiments 1 and 2.