阅读说明：本技术 一种带有分体式次屏壁的b型储舱 (B-type storage cabin with split type secondary screen wall ) 是由 常立勇 张义明 于世旭 马俊 张梅 片成荣 于峰 钱静 于 2021-08-19 设计创作，主要内容包括：一种带有分体式次屏壁的B型储舱,分体式次屏壁通过垂向支撑位于主屏壁与船体结构之间,分体式次屏壁由轴撑区和侧撑区自由组合,形成完整的次屏壁。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,侧撑区呈方形,侧撑区与轴撑区柔性连接。主屏壁外表面焊接的限位件插入集液槽内,在集液槽内悬空。本发明的这种分体式次屏壁,可以自由组合形成任意形状的次屏壁,通过集液槽与限位件的这种结构关系,既可以达到有效限制次屏壁受船舶震动而产生位移,保证次屏壁结构稳固,又可以达到避免应力集中的目的。(A type-B storage cabin with a split type secondary screen wall is characterized in that the split type secondary screen wall is located between a main screen wall and a ship body structure through vertical support, and the split type secondary screen wall is freely combined by a shaft support area and a side support area to form a complete secondary screen wall. The whole shaft support area is cross-shaped, a transverse bearing of the shaft support area is parallel to the transverse central axis of the bottom of the B-type cabin, a longitudinal shaft support of the shaft support area is parallel to the longitudinal central axis of the bottom of the B-type cabin, a plurality of liquid collecting grooves which are sunken downwards are arranged on the transverse shaft support and the longitudinal shaft support at equal intervals, the side support area is square, and the side support area is flexibly connected with the shaft support area. The limiting part welded on the outer surface of the main screen wall is inserted into the liquid collecting tank and suspended in the liquid collecting tank. The split type secondary screen wall can be freely combined to form the secondary screen wall in any shape, and through the structural relationship between the liquid collecting tank and the limiting piece, the secondary screen wall can be effectively limited from being displaced due to the vibration of a ship, the stability of the secondary screen wall structure is ensured, and the purpose of avoiding stress concentration can be achieved.)

1. The utility model provides a B type stores up cabin with split type secondary screen wall, B type store up the cabin and fix in hull structure through vertical supporting mechanism, and B type stores up the cabin and has main screen wall, its characterized in that: a split type secondary screen wall (7) is arranged between the main screen wall (6) and the hull structure (8), the split type secondary screen wall comprises a shaft support area (1), the whole shaft support area is cross-shaped and is positioned below the B-type storage cabin, a transverse shaft support of the shaft support area is parallel to a transverse central axis of the bottom of the B-type cabin, a longitudinal shaft support of the shaft 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 bottom of a limiting piece (4) arranged on the outer surface of the main screen wall is inserted into the liquid collecting grooves and suspended in the liquid collecting grooves, first clamping grooves (15) are arranged on two sides of the bottom of the limiting piece, first laminated wood (12) is inserted into the first clamping grooves and clamped between the limiting piece and the liquid collecting grooves,

a second clamping groove (16) is fixed on the outer wall of the liquid collecting groove, the position of the second clamping groove corresponds to that of the first clamping groove, a third clamping groove (17) is fixed on the vertical supporting mechanism (9), the position of the third clamping groove corresponds to that of the second clamping groove, and a second laminated wood (14) is clamped between the second clamping groove and the third clamping groove;

or the split type secondary screen wall comprises a shaft support area and a side support area (2), the side support area is square, the side support area is positioned at a concave part formed by the intersection of the transverse shaft support and the longitudinal shaft support, the side support area is flexibly connected with the shaft support area, the side support area and the shaft support area are fixed between the main screen wall and the hull structure through a vertical support mechanism,

a plurality of liquid collecting grooves which are sunken downwards are arranged on the transverse shaft support and the longitudinal shaft support at equal intervals, the bottom of a limiting piece arranged on the outer surface of the main screen wall is inserted into the liquid collecting grooves and suspended in the liquid collecting grooves, first clamping grooves are arranged on two sides of the bottom of the limiting piece, first laminated wood is inserted into the first clamping grooves and clamped between the limiting piece and the liquid collecting grooves,

a second clamping groove is fixed on the outer wall of the liquid collecting groove, the position of the second clamping groove corresponds to that of the first clamping groove, a third clamping groove is fixed on the vertical supporting mechanism (9), the position of the third clamping groove corresponds to that of the second clamping groove, and the second laminated wood is clamped between the second clamping groove and the third clamping groove.

2. The type B storage compartment with split secondary barrier 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 type B storage compartment with split secondary barrier of claim 1, wherein: the limiting pieces are in a straight shape or a cross shape, the straight limiting pieces 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 pieces are fixed at the intersection of the transverse central axis and the longitudinal central axis at the bottom of the main screen wall.

4. The type B storage compartment with split secondary barrier of claim 1, wherein: the edge of the shaft support area is bent upwards to form a U shape, one side (hereinafter referred to as side support area connecting side) of the side support area, which is connected with the shaft support area, is bent downwards to form an arc shape, the edge of the shaft support area is positioned below the side support area connecting side, and a heat insulation buffer material is bonded between the edge of the shaft support area and the side support area connecting side.

5. The type B storage compartment with split secondary barrier of claim 1, wherein: the liquid collecting tank on the transverse shaft support is vertical to the transverse shaft support, and the liquid collecting tank on the longitudinal shaft support is vertical to the longitudinal shaft support.

6. The type B storage compartment with split secondary barrier 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.

7. A B-type storage tank with split secondary walls according to claim 1 or 3, characterized in that: the limiting part is provided with two side plates (18) which are parallel to each other and vertically arranged, a web plate (19) is arranged between the two side plates, first clamping grooves are formed in the outer surfaces of the two side plates, and the limiting part is integrally in a straight shape.

8. The type B storage compartment with split secondary barrier of claim 4, wherein: the heat insulation buffer material is wood block or polytetrafluoroethylene or nitrile rubber.

9. The type B storage compartment with split secondary barrier 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.

10. The type B storage tank with split secondary barrier of claim 6, 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. And the hull motion in-process produces and lasts vibrations, and whole secondary screen wall structure itself lacks the device of buffering and shock attenuation, 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 supporting mechanism, and the secondary screen wall is used as a small liquid accumulating box and is arranged in an area where the secondary screen wall does not interfere with the vertical supporting mechanism. The motion of the ship body can generate horizontal load, and the load of the motion of the ship body can easily cause the vertical supporting mechanism to continuously slide under the normal shipping condition, thereby threatening the safety of a structural system.

Disclosure of Invention

In order to solve the problems, the invention provides a B-type storage cabin with a split type secondary screen wall, aiming at achieving the purposes of conveniently installing and replacing the secondary screen wall and ensuring the structural stability of the secondary screen wall, and the adopted technical scheme is as follows:

the utility model provides a B type stores up cabin with split type secondary screen wall, B type stores up the cabin and fixes in hull structure through vertical supporting mechanism, B type stores up the cabin and has main screen wall, be provided with split type secondary screen wall between main screen wall and hull structure, split type secondary screen wall includes the axle support district, the axle support district is whole to be cross, be located B type and store up the cabin below, the horizontal axle support in axle support district parallels with the horizontal central axis in B type cabin bottom, the longitudinal axis in axle support district parallels with the longitudinal axis in B type cabin bottom. A plurality of liquid collecting grooves which are sunken downwards are arranged on the transverse shaft support and the longitudinal shaft support at equal intervals, the bottoms of limiting parts arranged on the outer surface of the main screen wall are inserted into the liquid collecting grooves and suspended in the liquid collecting grooves, first clamping grooves are formed in two sides of the bottoms of the limiting parts, and first laminated wood is inserted into the first clamping grooves and clamped between the limiting parts and the liquid collecting grooves. A second clamping groove is fixed on the outer wall of the liquid collecting groove, the position of the second clamping groove corresponds to that of the first clamping groove, a third clamping groove is fixed on the vertical supporting mechanism, the position of the third clamping groove corresponds to that of the second clamping groove, and the second laminated wood is clamped between the second clamping groove and the third clamping groove.

Or the split type secondary screen wall comprises an axial support area and a side support area, the side support area is square, the side support area is located in a concave position formed by crossing the transverse axial support and the longitudinal axial support, the side support area is flexibly connected with the axial support area, and the side support area and the axial support area are fixed between the main screen wall and the hull structure through a vertical supporting mechanism. A plurality of liquid collecting grooves which are sunken downwards are arranged on the transverse shaft support and the longitudinal shaft support at equal intervals, the bottoms of limiting parts arranged on the outer surface of the main screen wall are inserted into the liquid collecting grooves and suspended in the liquid collecting grooves, first clamping grooves are formed in two sides of the bottoms of the limiting parts, and first laminated wood is inserted into the first clamping grooves and clamped between the limiting parts and the liquid collecting grooves. A second clamping groove is fixed on the outer wall of the liquid collecting groove, the position of the second clamping groove corresponds to that of the first clamping groove, a third clamping groove is fixed on the vertical supporting mechanism, the position of the third clamping groove corresponds to that of the second clamping groove, and the second laminated wood is clamped between the second clamping groove and the third clamping groove.

The split type secondary screen wall can be formed by independently using the shaft support area, or splicing the shaft support area with one side support area, or splicing the shaft support area 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. And because the locating part inserts in the collecting tank, unsettled inside the collecting tank that is located, when boats and ships normally travel or no liquid leaks, locating part and collecting tank do not take place the contact, but when the hull vibrations or liquid leak to secondary screen wall, lead to secondary screen wall shrink or produce the fold, locating part and collecting tank inner wall contact, collide, play the effect of limiting the displacement mutually between collecting tank and the locating part. When the secondary screen wall is seriously shrunk at low temperature, the force applied by the inner wall of the liquid collecting tank to the limiting part is increased to the extent that the limiting part can not bear, the limiting part drives the first laminated wood to slide in the liquid collecting tank, and the stress generated by low-temperature shrinkage at the position is released instantly.

In the above B-type storage cabin with a split secondary screen, further, the split secondary screen 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.

According to the B-type storage cabin with the split type secondary screen wall, furthermore, the limiting parts are in a shape of a straight line or a cross, 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. 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.

Above-mentioned B type stores up cabin with split type secondary screen wall, further, the axial strut district edge is the "U" type of bending upwards, and one side that the side strut district is connected with the axial strut district (hereinafter for short the side strut district connecting side) bends downwards and is the arc, and the axial strut district edge is located the below of side strut district connecting side, and it has thermal-insulated buffer material to bond between axial strut district edge and the side strut district connecting 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.

According to the B-type storage cabin with the split type secondary screen wall, furthermore, the liquid collecting grooves in the transverse shaft support are perpendicular to the transverse shaft support, and the liquid collecting grooves in the longitudinal shaft support are perpendicular to the longitudinal shaft support. The horizontally arranged liquid collecting tank corresponds to the horizontally arranged limiting piece, and the longitudinally arranged liquid collecting tank corresponds to the longitudinally arranged limiting piece.

According to the B-type storage cabin with the split type secondary screen wall, furthermore, corner transition or fillet transition is adopted at the intersection of the transverse shaft support and the longitudinal shaft support.

Above-mentioned B type stores up cabin with split type secondary screen wall, further, the locating part has two parallel, the curb plate of erectting the setting mutually, is provided with the web between two curb plates, is provided with first draw-in groove at two curb plate surfaces, and the locating part is whole "one" style of calligraphy.

In the B-type storage cabin with the split secondary screen wall, further, the heat-insulating buffer material is wood blocks or polytetrafluoroethylene or nitrile rubber.

Above-mentioned type B stores up cabin with split type secondary screen wall, further, the side brace district is kept away from the one side that is connected with the axle brace district, and 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 B-type storage cabin with the split type secondary screen wall, furthermore, the angle of corner transition is 45 degrees, and the radius of 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. Through the structural relation between the liquid collecting tank and the limiting part, the secondary screen wall can be effectively limited from being displaced due to the vibration of a ship, the stability of the secondary screen wall structure is guaranteed, and the purposes of avoiding stress concentration and leading the liquid collecting tank and the limiting part to generate stress when the secondary screen wall is released and contracts at low temperature can be achieved. The collecting tank is directly arranged below the vertical supporting mechanism welded at the bottom of the main screen wall, a drainage device is not required to be arranged, and leakage liquid at the position is directly received.

Drawings

FIG. 1 is a schematic view of a construction employing a region of axial support to form a secondary barrier;

FIG. 2 is a schematic view of a construction employing an axial bracing region and four lateral bracing regions to form a secondary barrier;

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

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

FIG. 5 is a schematic view of the locating member in the sump;

FIG. 6 is a schematic structural diagram of a position limiting member;

wherein: 1-axial support area, 2-lateral 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-ship structure, 9-vertical supporting mechanism, 12-first laminated wood, 14-second laminated wood, 15-first clamping groove, 16-second clamping groove, 17-third clamping groove, 18-side plate and 19-web plate.

Detailed Description

The invention is further explained with reference to the drawings.

Example 1

The utility model provides a B type stores up cabin with split type secondary screen wall, as shown in figure 1, split type secondary screen wall comprises axle support district 1, and the whole cross structure that is in axle support district, and the axle support district has horizontal axle to prop and vertical axle to prop, and horizontal axle props and vertical axle props alternately and is the cross, fixed connection, and its junction adopts the 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 supporting mechanism 9, and a space which is not less than 600mm is reserved between the split type secondary screen wall and the heat insulating layer of the main screen wall as well as between the split type secondary screen wall and the hull structure, so that the maintenance, the real-time monitoring and the emergency treatment of construction personnel 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 horizontal shaft support and the longitudinal shaft support are provided with liquid collecting grooves 3 which are sunken downwards at equal intervals, and a liquid collecting groove is also arranged at the intersection of the horizontal shaft support and the longitudinal shaft 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, the positions of the limiting parts correspond to those of the liquid collecting tank, and the bottoms of the limiting parts are inserted into the liquid collecting tank and are suspended in 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, cross limiting pieces are arranged at the intersection of the transverse central axis and the longitudinal central axis, and the transverse position and the longitudinal displacement of the cross limiting pieces caused by the vibration of the ship body can be limited.

As shown in fig. 6, the line-shaped limiting piece is composed of two side plates 18 and a web plate 19, the line-shaped limiting piece on the transverse central axis at the bottom of the B-type storage cabin is perpendicular to the transverse central axis, and the limiting piece on the transverse central axis plays a role in limiting the longitudinal displacement caused by the vibration of the ship body; a linear limiting piece on a longitudinal central axis at the bottom of the B-type storage cabin is perpendicular to the longitudinal central axis, and the limiting piece on the longitudinal central axis plays a role in limiting the transverse displacement caused by the vibration of the ship body. 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.

As shown in fig. 5, the outer surface of the bottom of each of the two side plates is welded with a first clamping groove 15, a first laminated wood 12 is embedded in the first clamping groove, one end of the first laminated wood is embedded in the first clamping groove and is bonded in the first clamping groove through a glue, and the other end of the first laminated wood is in lap joint with the inner wall of the liquid collecting tank. The second clamping groove is welded on the outer wall of the liquid collecting groove at the position corresponding to the first clamping groove, the third clamping groove 17 is welded at the position corresponding to the vertical supporting mechanism and the second clamping groove 16, the second laminated wood 14 is embedded between the second clamping groove and the third clamping groove, and the second laminated wood is bonded with the second clamping groove through viscose and is in lap joint with the third clamping groove.

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 2, wherein the lateral bracing regions are square, and are fixed between the main barrier and the hull structure through a vertical support mechanism 9 after being spliced with the axial bracing regions. The shaft support region is provided with a liquid collecting groove which is sunken downwards, and a limiting piece on the outer surface of the main screen wall is inserted into the liquid collecting groove in a suspending way (the structure form of the liquid collecting groove and the limiting piece is as described in embodiment 1). 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 is the "U" type of bending upwards, and the side props the district and splices the district mutually and the side is the quarter arc of bending downwards, is connected through thermal-insulated buffer material 5 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 fixed and sliding vertical supporting mechanism, so that the structural stability is improved.

Example 3

The split secondary screen wall is composed of a shaft support area and a part of side support areas (schematic illustration is not given), the shaft support area is provided with a liquid collecting groove which is sunken downwards, and a limiting piece on the outer surface of the main screen wall is inserted into the liquid collecting groove in a suspending way (like the liquid collecting groove and the limiting piece in the structural form in embodiment 1). According to the fatigue and crack propagation analysis result, if the risk of leakage of the side supporting area is low, part of the side supporting area 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.