A type B storage tank with limitable liquid collection tank

Abstract

A limitable B-type storage tank collecting trough, a plurality of limiters are welded on the bottom and main screen wall of the B-type storage tank, a downwardly concave collecting trough is welded below the limiters and on the secondary screen wall, the limiters are inserted into the collecting trough and suspended in the collecting trough, first clamping grooves are arranged on both sides of the bottom of the limiters, a first laminated wood is inserted into the clamping grooves and clamped between the limiters and the collecting trough. A second clamping groove is fixed on the outer wall of the collecting trough, the position of the second clamping groove corresponds to the position of the first clamping groove, a third clamping groove is fixed on the vertical support mechanism, the position of the third clamping groove corresponds to the position of the second clamping groove, and the second laminated wood is clamped between the second clamping groove and the third clamping groove. The structure adopted by the present invention can effectively limit the displacement of the secondary screen wall caused by the vibration of the ship and ensure the stability of the secondary screen wall structure through the structural relationship between the collecting trough and the limiters, and can also avoid stress concentration and release the stress generated by the collecting trough and the limiters caused by the shrinkage of the secondary screen wall at low temperature.

Description

Technical Field

[0001] The invention relates to the field of ship construction and design, and in particular to a liquid collecting tank arranged on a secondary barrier wall of a B-type storage tank. Background Art

[0002] The bottom of the existing Type B cabin main screen wall is generally welded with multiple supporting structures, including the secondary screen wall supporting mechanism and the main screen wall limiting mechanism. The steel structure of the supporting structure is welded to the bottom of the main screen wall. There are many welding points, stress concentration areas and greater risks of fatigue damage and crack extension.

[0003] The existing technologies all use the secondary barrier as a small liquid collection box, arranged in an area that does not interfere with the supporting structure (avoiding arrangement in the area adjacent to the supporting structure to generate or enhance stress concentration during navigation), and at the same time introduce the leaked liquid into the secondary barrier through a drainage device.

[0004] The problem with this arrangement is that for the leaking liquid at the welding point of the supporting structure at the bottom of the main screen wall, a drainage device needs to be properly arranged to ensure that the drainage device can successfully dock with the leaking liquid at the welding point and drain the leaked liquid into the secondary screen wall. The drainage device has a complex path and can easily cross each other. The amount of engineering work for local treatment is large, which is not convenient for design and construction. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a limitable B-type storage tank liquid collecting tank, a limitable B-type storage tank liquid collecting tank, the B-type storage tank is fixed in the hull structure, a secondary screen wall is arranged between the main screen wall of the B-type storage tank and the hull structure, and the secondary screen wall is fixed between the main screen wall and the hull structure through a vertical support mechanism. A plurality of limiters are welded on the bottom of the B-type storage tank and the main screen wall, and a downwardly concave liquid collecting tank is welded below the limiters and on the secondary screen wall, the limiters are inserted into the liquid collecting tank and suspended in the liquid collecting tank, and first card slots are arranged on both sides of the bottom of the limiters, and the first laminated wood is inserted into the first card slot and clamped between the limiters and the liquid collecting tank.

[0006] A second card slot is fixed on the outer wall of the liquid collecting tank, and the position of the second card slot corresponds to the position of the first card slot. A third card slot is fixed on the vertical supporting mechanism, and the position of the third card slot corresponds to the position of the second card slot. The second laminated wood is inserted between the second card slot and the third card slot.

[0007] A liquid collecting trough is welded on the secondary screen wall, and the liquid collecting trough is arranged at the position limiter welded at the bottom of the main screen wall. With this structural design, the diversion device can eliminate the diversion of the leaked liquid at the welding point, and the leaked liquid is directly received through the liquid collecting trough. In addition, since the position limiter is inserted into the liquid collecting trough and is suspended inside the liquid collecting trough, when the ship is running normally or there is no liquid leakage, the position limiter and the liquid collecting trough do not contact each other. However, when the hull vibrates or liquid leaks to the secondary screen wall, causing the secondary screen wall to shrink or wrinkle, the position limiter contacts and collides with the inner wall of the liquid collecting trough, and the liquid collecting trough and the position limiter play a role in limiting the displacement of each other. When the secondary screen wall shrinks severely due to low temperature, the force applied by the inner wall of the liquid collecting trough to the position limiter increases to a level that the position limiter cannot bear, and the position limiter slides in the liquid collecting trough with the first laminated wood, instantly releasing the stress generated by the low temperature shrinkage here.

[0008] The above-mentioned limitable B-type storage tank liquid collecting tank, further, the liquid collecting tank is welded to the secondary screen wall in a transverse or longitudinal direction. The liquid collecting tank is arranged transversely or longitudinally relative to the secondary screen wall, that is, it is also arranged transversely or longitudinally relative to the main screen wall. The liquid collecting tank corresponds to the limiting piece at the bottom of the main screen wall. The transversely arranged liquid collecting tank is combined with the limiting piece to limit the displacement of the secondary screen wall in the transverse direction. The longitudinally arranged liquid collecting tank is combined with the limiting piece to limit the displacement of the secondary screen wall in the longitudinal direction, ensuring that the displacement of the secondary screen wall is restricted in all directions, thereby ensuring that the secondary screen wall will not be wrinkled or damaged due to displacement.

[0009] The above-mentioned limitable B-type storage tank collecting tank, further, the limiter has two side plates parallel to each other and arranged vertically, a web is arranged between the two side plates, the first clamping groove is arranged on the outer surface of the two side plates, and the limiter is in the shape of "I" as a whole. The limiter can be of any shape, can be a straight line, or can be a cross shape, in order to cooperate with the collecting tank to limit the displacement.

[0010] The above-mentioned limitable B-type storage tank liquid collecting tank, further, has a spacing of 50-500mm between the bottom of the limiter and the bottom of the liquid collecting tank.

[0011] The above-mentioned limitable B-type storage tank liquid collecting tank, further, the first slot is welded to the side plate.

[0012] In the above-mentioned limitable B-type tank collecting tank, further, the "I"-shaped limiting piece is welded horizontally or vertically to the bottom of the main screen wall. The horizontally arranged collecting tank corresponds to the horizontally arranged limiting piece, and the vertically arranged collecting tank corresponds to the vertically arranged limiting piece.

[0013] In the above-mentioned positionable B-type storage tank collecting trough, further, the first laminated wood is bonded or bolted to the first slot. The first laminated wood is in contact with the inner wall of the collecting trough but is not fixedly connected.

[0014] The above-mentioned limitable B-type storage tank collecting tank, further, the second laminated wood is bonded or bolted to the second slot, and overlapped with the third slot. The second laminated wood is not fixedly connected to the third slot, so that the second slot and the third slot can move relative to each other. The second laminated wood is located between the collecting tank and the vertical support mechanism, and plays the role of fixing the collecting tank. When the ship vibrates, the limiter moves horizontally, and the first laminated wood directly hits the inner wall of the collecting box. The outer wall of the collecting tank is connected to the hull structure through the second laminated wood and the vertical support mechanism, so that the collecting tank structure is more stable, and the secondary screen wall is more stable.

[0015] The structure adopted by the present invention can effectively limit the displacement of the secondary screen wall caused by the vibration of the ship and ensure the stability of the secondary screen wall structure through the structural relationship between the collecting trough and the limiting member, and can also avoid stress concentration and release the stress generated by the collecting trough and the limiting member caused by the shrinkage of the secondary screen wall at low temperature. The collecting trough is directly arranged below the supporting structure welded at the bottom of the main screen wall, and does not need to be provided with a drainage device, and directly receives the leaked liquid at this position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the position limiting member of the present invention;

[0018] Among them: 1-main screen wall, 2-second screen wall, 3-hull structure, 4-first laminated wood, 5-limiting member, 6-vertical supporting mechanism, 7-second laminated wood, 8-liquid collecting trough, 9-first card slot, 10-second card slot, 11-third card slot, 501-side plate, 502-web plate. DETAILED DESCRIPTION

[0019] The present invention will be further described in conjunction with the accompanying drawings.

[0020] Example 1

[0021] A limitable B-type tank collecting tank, a B-type tank is arranged in a hull structure 3, the B-type tank has a main screen wall 1 and a secondary screen wall 2, the secondary screen wall is fixed between the main screen wall and the hull structure by a vertical support mechanism 6, and there is a gap between the secondary screen wall and the main screen wall and the hull structure. A plurality of limiters 5 are welded at equal intervals on the bottom of the B-type tank and the main screen wall, and the limiters are located on the transverse center axis and the longitudinal center axis of the bottom of the B-type tank. Figure 2As shown, the limiter has two vertically arranged side plates 501, a web plate 502 is welded in the middle of the side plates, and a first slot 9 is welded on the outer surface of the bottom of the two side plates. The limiter composed of two side plates and one web plate is in an "I" shape as a whole. The "I"-shaped limiter on the transverse center axis of the bottom of the B-type storage tank is perpendicular to the transverse center axis, and the limiter on the transverse center axis plays a limiting role in the longitudinal displacement caused by the vibration of the hull; the "I"-shaped limiter on the longitudinal center axis of the bottom of the B-type storage tank is perpendicular to the longitudinal center axis, and the limiter on the longitudinal center axis plays a limiting role in the transverse displacement caused by the vibration of the hull. A "cross"-shaped limiter is arranged at the intersection of the transverse center axis and the longitudinal center axis of the bottom of the B-type storage tank, and the cross-shaped limiter can limit both the transverse position and the longitudinal displacement caused by the vibration of the hull.

[0022] like Figure 1 As shown, a downwardly concave liquid collecting tank 8 is provided on the secondary screen wall at a position corresponding to the position limiting member, the liquid collecting tank is located below the position limiting member, the bottom of the position limiting member is inserted into the liquid collecting tank, and is suspended in the liquid collecting tank. A first laminated wood is embedded in the first card slot 9, one end of the first laminated wood 4 is embedded in the first card slot, bonded in the first card slot by adhesive, and the other end overlaps the inner wall of the liquid collecting tank.

[0023] A second slot 10 is welded on the outer wall of the liquid collecting tank at a position corresponding to the first slot, and a third slot is welded on the vertical supporting mechanism at a position corresponding to the second slot. The second laminated wood 7 is embedded between the second slot and the third slot 11. The second laminated wood is bonded to the second slot by adhesive and overlapped with the third slot.

[0024] The structure adopted by the present invention sets the liquid collecting tank directly below the position limiting member, and can collect the leaked liquid without using a drainage device. At the same time, one end of the first laminated wood is fixed to the position limiting member, and the other end is overlapped with the liquid collecting tank, and one end of the second laminated wood is fixed to the liquid collecting tank, and the other end is overlapped with the vertical support mechanism inside the hull. While achieving the limit and ensuring the structural stability, it also avoids stress concentration and can quickly release the stress concentration generated by the fixed components at these welding positions.

Claims

1. A limitable B-type tank sump, the B-type tank is fixed in the hull structure, Features: A secondary barrier wall (2) is provided between the main barrier wall (1) of the B-type storage tank and the hull structure (3), and the secondary barrier wall is fixed between the main barrier wall and the hull structure via a vertical support mechanism (6); A plurality of limiting members (5) are welded on the bottom of the B-type storage tank and the main screen wall, and a downwardly recessed liquid collecting groove (8) is welded on the secondary screen wall below the limiting members, the limiting members are inserted into the liquid collecting groove and suspended in the liquid collecting groove, and first clamping grooves (9) are arranged on both sides of the bottom of the limiting members, and the first laminated wood (4) is inserted into the first clamping grooves and clamped between the limiting members and the liquid collecting groove; A second card slot (10) is fixed on the outer wall of the liquid collecting tank, and the position of the second card slot corresponds to the position of the first card slot. A third card slot (11) is fixed on the vertical supporting mechanism, and the position of the third card slot corresponds to the position of the second card slot. The second laminated wood (7) is inserted between the second card slot and the third card slot.

2. A positionable B-type tank collecting tank according to claim 1, Features: The liquid collecting trough is welded to the secondary screen wall transversely or longitudinally.

3. A positionable B-type tank collecting tank according to claim 1, Features: The limiting member has two side plates (501) which are parallel to each other and arranged vertically, a web plate (502) is arranged between the two side plates, and the first clamping grooves are arranged on the outer surfaces of the two side plates. The limiting member is in an "I" shape as a whole.

4. A positionable B-type tank collecting tank according to claim 1, Features: There is a distance of 50-500 mm between the bottom of the limiting member and the bottom of the liquid collecting tank.

5. A positionable B-type tank collecting tank according to claim 3, Features: The first clamping slot is welded to the side plate.

6. A positionable B-type tank collecting tank according to claim 3, Features: The "I"-shaped limiting piece is welded horizontally or vertically at the bottom of the main screen wall.

7. A positionable B-type tank collecting tank according to claim 1 or 3, Features: The first laminated wood is bonded or bolted to the first slot.

8. A positionable B-type tank collecting tank according to claim 1, Features: The second laminated wood is bonded or bolted to the second slot and overlapped with the third slot.

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