Supporting structure for B-type cabin of ultra-large ethane transport ship

Abstract

The utility model relates to the field of ship construction, and provides a B-type cabin supporting structure of an ultra-large ethane transport ship. Comprising a plurality of vertical supporting structures, a plurality of transverse anti-swing supporting structures and a plurality of longitudinal anti-swing supporting structures, connection and supporting of the B-type cabin and a ship body structure are achieved by arranging the vertical supporting structures distributed in an array shape, a row of longitudinal anti-swing structures are arranged along the transverse center line of the B-type cabin, and a row of transverse anti-swing structures are arranged along the longitudinal center line of the B-type cabin. Buffering between the B-type cabin and the ship body structure in a bumping state is achieved, and damage to the connecting position is avoided. A combined supporting structure is adopted at the linear contraction position of the bow and the stern of the ship body, vertical supporting structures are connected and reinforced mutually or a plurality of vertical supporting structures are designed into an integrated structure, supporting space is saved, the vertical supporting structures are reinforced between the anti-swing structures through reinforcing plates, and on the basis that the space is saved, the supporting space is saved. The structural strength is ensured, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of shipbuilding, and particularly relates to a B-type cabin supporting structure of a super large ethane carrier. BACKGROUND

[0002] Compared with liquefied natural gas carriers, the market for super large ethane carriers is still an emerging market. When ethane is cooled to -88 degrees Celsius, it changes from a gas to a liquid. At this low temperature, the volume of the liquefied ethane gas (LEG) is significantly reduced, facilitating its bulk transportation. The B-type cabin and the GTT membrane-type cargo containment system are common ethane storage cabins, each accounting for about 50% of the market share. The bottom of the B-type independent liquid cargo cabin is connected to the hull structure through multiple support seats to achieve stable support.

[0003] Four B-type cabins are usually provided on a large ethane carrier, and the four B-type cabins are arranged in the length direction of the hull. The capacity of each B-type cabin is about 10,000 cubic meters, and the bottom of the B-type cabin needs to be connected and supported between the hull structures through multiple vertical support devices. The vertical support structure includes laminated wood, which can play a buffering support role to avoid damage to the connection between the B-type cabin and the hull structure when the hull is rolling. The vertical support structure includes multiple vertical limiting supports, multiple transverse limiting supports, and multiple longitudinal limiting supports for limiting the displacement of the fuel cabin in each direction.

[0004] Due to the particularity of the hull line, the bow and stern lines of the hull are contracted, so the width near the bow and stern gradually decreases. Correspondingly, the number of supports of the B-type cabin near the bow and stern is less than that of the B-type cabin in the middle due to space limitations. Therefore, a special support structure needs to be designed to ensure the structural strength and service life of the support structure under the premise of stable support. SUMMARY

[0005] In order to meet the support requirements of the B-type cabin and take into account the strength and service life requirements of the support structure of the bow and stern of the hull, the utility model provides a B-type cabin supporting structure of a super large ethane carrier.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] The supporting structure of B-type cabin of super large ethane carrier includes a plurality of vertical supporting structures, a plurality of transverse anti-rolling supporting structures and a plurality of longitudinal anti-rolling supporting structures. The vertical supporting structures are arranged in an array at the bottom of the B-type cabin. The transverse anti-rolling supporting structures are arranged at the center line of the bottom of the B-type cabin and are equidistantly distributed along the width direction of the B-type cabin. The longitudinal anti-rolling supporting structures are arranged on the center line of the bottom of the B-type cabin and are uniformly distributed along the length direction. The vertical supporting structure includes an upper supporting seat, a lower supporting seat and laminated wood. The upper supporting seat is fixedly welded to the bottom surface of the B-type cabin. The lower supporting seat is fixedly welded to the ship body structure. The laminated wood is fixedly installed on the bottom surface of the upper supporting seat. The bottom surface of the laminated wood is supported on the top surface of the lower supporting seat. The transverse anti-rolling supporting structure includes a transverse anti-rolling seat and a pair of transverse supporting seats. The transverse anti-rolling seat is fixedly welded to the bottom surface of the B-type cabin. The pair of transverse supporting seats are fixedly welded to the ship body structure and are distributed on the two sides of the transverse anti-rolling seat along the length direction of the ship body. Laminated wood is fixedly installed on the two side surfaces of the transverse anti-rolling seat. The laminated wood is in contact with the side surface of the corresponding transverse supporting seat. The longitudinal anti-rolling supporting structure includes a longitudinal anti-rolling seat and a pair of longitudinal supporting seats. The longitudinal anti-rolling seat is fixedly welded to the bottom surface of the B-type cabin. The pair of longitudinal supporting seats are fixedly welded to the ship body structure and are distributed on the two sides of the longitudinal anti-rolling seat along the width direction of the ship body. Laminated wood is fixedly installed on the two side surfaces of the longitudinal anti-rolling seat. The laminated wood is in contact with the side surface of the corresponding longitudinal supporting seat.

[0008] Further, the combined supporting structure is arranged at the contraction of the bow line of the carrier. The combined supporting structure includes a longitudinal anti-rolling unit arranged at the center line of the B-type cabin and two vertical supporting units arranged on the two sides of the longitudinal anti-rolling unit. The longitudinal anti-rolling unit and the vertical supporting unit are fixedly connected by a connecting plate.

[0009] Further, the vertical supporting unit is composed of two vertical supporting structures. The lower supporting seats of the two adjacent vertical supporting structures are connected by a reinforcing plate. The longitudinal supporting seat of the longitudinal anti-rolling unit and the lower supporting seat of the adjacent vertical supporting unit are fixedly connected by a connecting plate.

[0010] Further, the connecting plate and the lower supporting seat of the corresponding vertical supporting unit are an integral piece.

[0011] Further, the upper supporting seat and the lower supporting seat of the two vertical supporting structures of the vertical supporting unit are an integral piece. Two laminated woods arranged in the longitudinal direction are installed between the integral upper supporting seat and the integral lower supporting seat.

[0012] Further, the bottom surface of the upper supporting seat, the side surface of the transverse anti-rolling seat and the side surface of the longitudinal anti-rolling seat are respectively provided with a ring of blocking plates corresponding to the side surface of the laminated wood. The laminated wood is fixedly connected to the blocking plate by a screw.

[0013] Furthermore, a baffle is provided on the top surface of the lower support, the side surface of the longitudinal support, and the side surface of the transverse support. An epoxy layer and a steel plate are installed in the space enclosed by the baffle. The epoxy layer is located between the steel plate and the corresponding support, and the steel plate is in contact with the laminated wood.

[0014] The beneficial effects of this utility model after adopting the above technical solutions are as follows: The connection and support between the B-type cabin and the hull structure are achieved by setting an array of vertically distributed support structures; a row of longitudinal anti-roll structures and a row of transverse anti-roll structures are set along the transverse centerline of the B-type cabin, providing buffering between the B-type cabin and the hull structure under turbulent conditions and preventing damage at the connection point; a combined support structure is used at the bow and stern of the hull, connecting and strengthening the vertical support structures or designing multiple vertical support structures as an integrated structure to save support space; the vertical support structures are reinforced with reinforcing plates between them, ensuring structural strength and improving service life while saving space. Attached Figure Description

[0015] Figure 1 This is a diagram showing the distribution of the support structure for the Type B compartment at the bow.

[0016] Figure 2 This is a schematic diagram of a combined support structure.

[0017] In the diagram: 1. Type B compartment; 2. Hull structure; 3. Vertical support structure; 3. Upper support seat; 31. Lower support seat; 32. Laminated wood; 33. Transverse anti-roll support structure; 4. Longitudinal anti-roll support structure; 5. Longitudinal anti-roll seat; 51. Longitudinal support seat; 52. Laminated wood; 53. Connecting plate; 6. Bottom plate; 7. Support plate; 8. Reinforcing rib; 9. Baffle; 10. Screw; 11. Baffle; 12. Epoxy layer; 13. Steel plate; 14. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0019] like Figure 1 As shown, the support structure for the B-type compartment of a very large ethane carrier is used to support the B-type compartment and to connect the B-type compartment 1 to the hull structure 2. It consists of multiple vertical support structures 3, multiple transverse anti-roll support structures 4, and multiple longitudinal anti-roll support structures 5. The multiple vertical support structures 3 are arrayed at the bottom of the B-type compartment 1 to provide sufficient support and ensure the strength of the support. The multiple transverse anti-roll support structures 4 are evenly spaced along the width direction along the longitudinal centerline of the bottom of the B-type compartment 1 to limit the lateral movement of the B-type compartment 1; the multiple longitudinal anti-roll support structures 5 are evenly distributed along the length direction along the transverse centerline of the bottom of the B-type compartment 1 to limit the longitudinal movement of the B-type compartment 1.

[0020] The vertical support structure 3 includes an upper support base 31, a lower support base 32, and a laminated wood 33. The upper support base 31 is fixedly welded to the bottom surface of the B-type cabin 1, the lower support base 32 is fixedly welded to the ship body structure 2, and the laminated wood 33 is fixedly installed on the bottom surface of the upper support base 31. The bottom surface of the laminated wood 33 is supported on the top surface of the lower support base 32. By extruding the laminated wood 33 between the upper and lower support bases, a soft support is formed, which can better withstand impact.

[0021] The longitudinal anti-rolling support structure 5 includes a longitudinal anti-rolling base 51 and a pair of longitudinal support bases 52. The longitudinal anti-rolling base 51 is fixedly welded to the bottom surface of the B-type cabin 1, and the pair of longitudinal support bases 52 are fixedly welded to the ship body structure 2 and distributed on both sides of the longitudinal anti-rolling base 51 along the ship body width direction. The longitudinal anti-rolling base 51 is inserted between the pair of longitudinal support bases 52, and laminated woods 53 are fixedly installed on both sides of the longitudinal anti-rolling base 51. The laminated woods 53 are in contact with the sides of the corresponding longitudinal support bases 52 to form soft contact limiting. When longitudinal motion occurs, the damage to the connection can be avoided by extruding the laminated wood.

[0022] The transverse anti-rolling support structure 4 and the longitudinal anti-rolling support structure 5 have the same structure, except that the installation direction is different. The transverse anti-rolling support structure includes a transverse anti-rolling base and a pair of transverse support bases. The transverse anti-rolling base is fixedly welded to the bottom surface of the B-type cabin, and the pair of transverse support bases are fixedly welded to the ship body structure and distributed on both sides of the transverse anti-rolling base along the ship body length direction. The transverse anti-rolling base is inserted between the two transverse support bases, and laminated woods are fixedly installed on both sides of the transverse anti-rolling base. The laminated woods are in contact with the sides of the corresponding transverse support bases to form soft contact limiting. When transverse motion occurs, the damage to the connection can be avoided by extruding the laminated wood.

[0023] Due to the contraction of the bow line of the transport ship, the ship body width gradually narrows, and the part of the B-type cabin located at the bow cannot be arranged with enough vertical support structures. The reduction in the number of vertical support structures will cause the problem of insufficient support strength. Therefore, a combined support structure is arranged in this area. The combined support structure includes a longitudinal anti-rolling structure 5 located on the centerline of the B-type cabin and two vertical support units distributed on both sides of the longitudinal anti-rolling structure 5. The vertical support unit is composed of two vertical support structures 3. The lower support bases of the adjacent two vertical support structures 3 are connected by a reinforcing plate 6 to ensure the support strength. The longitudinal support bases 52 of the longitudinal anti-rolling structure 5 are fixedly connected with the lower support bases 32 of the adjacent vertical support unit through the connecting plate 6. Alternatively, the two vertical support structures 3 are designed as an integral part. The upper support base and the lower support base of the vertical support structure are respectively an integral part. Two longitudinally arranged laminated woods are installed between the integral upper support base and the integral lower support base to further save installation space. The connecting plate 6 between the vertical support structure 3 and the longitudinal anti-rolling structure 3 can be designed as an integral structure with the lower support base 32 of the vertical support structure, which is convenient for installation.

[0024] The support seat of the present application comprises a horizontal bottom plate 7, a vertical support plate 8 and a plurality of reinforcing ribs 9. The support plate 8 is welded to the middle line of the bottom plate 7. The reinforcing ribs 9 are distributed on both sides of the support plate 8 and are welded to the support plate 8 and the bottom plate 7. The two ends of the support plate 8 extend beyond the sides of the bottom plate and are welded to the corresponding ship structure 2 or the bottom surface of the B-type cabin 1. Each reinforcing rib 9 is also welded to the bottom surface of the corresponding ship structure 2 or the B-type cabin 1.

[0025] The installation of the laminated wood is as follows: a ring of baffles 10 corresponding to the side surface of the laminated wood is arranged on the bottom surface of the upper support seat, the lateral anti-rolling seat and the side surface of the longitudinal anti-rolling seat. The laminated wood is installed in the ring of baffles and is fixedly connected to the baffles by screws 11. A ring of baffles 12 is arranged on the top surface of the lower support seat, the side surface of the longitudinal support seat and the side surface of the lateral support seat. The space surrounded by the baffles is respectively provided with an epoxy layer 13 and a steel plate 14. The epoxy layer 13 is located between the steel plate 14 and the corresponding support seat. The steel plate 14 is in contact, extrusion and frictional engagement with the laminated wood.

Claims

1. A support structure for B-type tanks of very large ethane carriers, characterized in that, The application relates to a combined support structure for a B-type cabin, which comprises a plurality of vertical support structures, a plurality of transverse anti-rolling support structures and a plurality of longitudinal anti-rolling support structures, wherein the vertical support structures are arranged in an array at the bottom of the B-type cabin, the transverse anti-rolling support structures are arranged at the middle line of the bottom of the B-type cabin and are equidistantly distributed along the width direction of the B-type cabin, and the longitudinal anti-rolling support structures are arranged on the middle line of the bottom of the B-type cabin and are uniformly distributed along the length direction of the B-type cabin.

2. Very large ethane carrier B-type hold support structure according to claim 1, characterized in that, The application relates to a combined support structure for a B-type cabin, which comprises a plurality of vertical support structures, a plurality of transverse anti-rolling support structures and a plurality of longitudinal anti-rolling support structures, wherein the vertical support structures are arranged in an array at the bottom of the B-type cabin, the transverse anti-rolling support structures are arranged at the middle line of the bottom of the B-type cabin and are equidistantly distributed along the width direction of the B-type cabin, and the longitudinal anti-rolling support structures are arranged on the middle line of the bottom of the B-type cabin and are uniformly distributed along the length direction of the B-type cabin.

3. Very large ethane carrier B-type hold support structure according to claim 2, characterized in that, The application relates to a combined support structure for a B-type cabin, which comprises a plurality of vertical support structures, a plurality of transverse anti-rolling support structures and a plurality of longitudinal anti-rolling support structures, wherein the vertical support structures are arranged in an array at the bottom of the B-type cabin, the transverse anti-rolling support structures are arranged at the middle line of the bottom of the B-type cabin and are equidistantly distributed along the width direction of the B-type cabin, and the longitudinal anti-rolling support structures are arranged on the middle line of the bottom of the B-type cabin and are uniformly distributed along the length direction of the B-type cabin.

4. Very large ethane carrier B-type hold support structure according to claim 3, characterized in that, The application relates to a combined support structure for a B-type cabin, which comprises a plurality of vertical support structures, a plurality of transverse anti-rolling support structures and a plurality of longitudinal anti-rolling support structures, wherein the vertical support structures are arranged in an array at the bottom of the B-type cabin, the transverse anti-rolling support structures are arranged at the middle line of the bottom of the B-type cabin and are equidistantly distributed along the width direction of the B-type cabin, and the longitudinal anti-rolling support structures are arranged on the middle line of the bottom of the B-type cabin and are uniformly distributed along the length direction of the B-type cabin.

5. The very large ethane carrier B-type hold support structure of claim 2, wherein, The application relates to a combined support structure for a B-type cabin, which comprises a plurality of vertical support structures, a plurality of transverse anti-rolling support structures and a plurality of longitudinal anti-rolling support structures, wherein the vertical support structures are arranged in an array at the bottom of the B-type cabin, the transverse anti-rolling support structures are arranged at the middle line of the bottom of the B-type cabin and are equidistantly distributed along the width direction of the B-type cabin, and the longitudinal anti-rolling support structures are arranged on the middle line of the bottom of the B-type cabin and are uniformly distributed along the length direction of the B-type cabin.

6. The Very Large Ethane Carrier B-type hold support structure according to claim 1, characterized in that, ​ 7. The very large ethane carrier B-type hold support structure of claim 1, wherein, ​

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