CN216185810U

CN216185810U - Ship with sunken LNG tank supports

Info

Publication number: CN216185810U
Application number: CN202121984573.4U
Authority: CN
Inventors: 张倩; 关英华; 王景洋; 刘国磊; 李吉明; 李嘉换; 陈立; 王礼东; 李文贺; 王金城; 钱静; 王艳妮
Original assignee: Dalian Shipbuilding Industry Co Ltd
Current assignee: Dalian Shipbuilding Industry Co Ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-04-05
Anticipated expiration: 2031-08-23

Abstract

A ship with a sunken LNG tank support comprises an LNG tank, sunken decks are respectively arranged at a bow part, a port side and a starboard side of a ship body, the sunken decks are arranged between a longitudinal bulkhead and an inner shell of the ship body, an arc-shaped LNG tank support is fixedly welded on the sunken decks, an arc-shaped panel is bonded on the upper surface of the LNG tank support, and the panel is matched with the LNG tank support; a deck strong beam is arranged below the sunken deck, the top of the deck strong beam is welded with the deck, the bottom of the deck strong beam is in an upwards sunken arc shape, a transverse first reinforcing rib and a longitudinal anti-tilting toggle plate are further arranged on the deck strong beam, and the LNG tank is fixed on an LNG tank support. The sunken deck structure and the structure for fixing the deck strong cross beams below the sunken deck have reasonable structural layout and uniform load distribution, can greatly reduce the weight of the empty ship, simplify the construction process, are beneficial to on-site construction and sectional butt joint, and reduce excessive labor waste.

Description

Ship with sunken LNG tank supports

Technical Field

The invention relates to the field of ship construction and design, in particular to a ship supported by a sunken LNG tank.

Background

With the rapid development of science and technology and human civilization, people pay more attention to the environmental and ecological problems, and various countries, regions, organizations and specifications thereof gradually begin to put forward requirements on the emission of carbon and sulfur. The clean energy such as LNG, LPG has the advantage of discharging low carbon dioxide content, zero discharge sulphide, because the liquid clean energy price is more expensive, replaces the existing energy completely and can not be realized, therefore designs the boats and ships that adopt two kinds of fuel to promote jointly to can freely switch over fuel system as transition boat type.

As shown in fig. 1, the prior art places the fuel tank on a deck with a base between the deck and the tank. Because the LNG tank is large in size and poor in stability and needs to be away from the side by a certain distance, the base of the LNG tank must cross the longitudinal bulkhead, and stress concentration at the position of the longitudinal bulkhead is serious.

Disclosure of Invention

In order to solve the problems, the invention provides a ship with a sunken LNG tank support, which aims to achieve the purpose of avoiding stress concentration at a longitudinal bulkhead while ensuring the stability of an LNG tank, and adopts the technical scheme that:

a ship with a sunken LNG tank support comprises an LNG tank, sunken decks are respectively arranged at a bow part, a port side and a starboard side of a ship body, the sunken decks are arranged between a longitudinal bulkhead and an inner shell of the ship body, an arc-shaped LNG tank support is fixedly welded on the sunken decks, an arc-shaped panel is bonded on the upper surface of the LNG tank support, and the panel is matched with the LNG tank support; the LNG tank is characterized in that a deck strong beam is arranged below the sunken deck, the top of the deck strong beam is welded with the deck, the bottom of the deck strong beam is in an upwards sunken arc shape, a transverse first reinforcing rib and a longitudinal elbow preventing plate are further arranged on the deck strong beam, and the LNG tank is fixed on the LNG tank support.

The LNG tanks are symmetrically arranged at the port and the starboard of the LNG ship, the LNG tanks are fixed at the sunken deck, one half of the tank body is positioned in a groove formed by the sunken deck and the hull inner shell, the other half of the tank body is positioned above the hull, the hull inner shell and the sunken deck are used for limiting the space for storing the LNG tanks by adopting the structural design, the LNG tanks are protected, and the stability of the LNG tanks can be further ensured.

The ship with the sunken LNG tank support is characterized in that the upper surface of the panel is provided with epoxy resin. The epoxy resin plays a role in protecting the LNG tank.

In the ship with the submerged LNG tank support, further, the first reinforcing rib and the anti-tilt bracket are perpendicular to each other, and the first reinforcing rib is welded to the anti-tilt bracket. The first reinforcing rib is combined with the anti-tilting toggle plate, so that the structural stability of the deck strong beam is ensured, therefore, on the basis of adopting the deck strong beam, a cross brace structure between two longitudinal bulkheads in the middle of an original cargo hold can be cancelled, and under the condition of cancelling the cross brace structure, the structural strength of a cargo hold area can still be ensured.

In the ship with the sunken LNG tank support, further, the number of the first reinforcing ribs is two, and the distances between the two first reinforcing ribs and the deck strong beam are respectively A1, A2, A3, A1> A2> A3 from top to bottom.

The above ship with submerged LNG tank support, further, 0< a1<1200, 0< a2<1000, 0< A3< 800.

Above-mentioned ship with formula of sinking LNG jar supports, further, the below first strengthening rib with be provided with the second strengthening rib between the edge of deck strong beam bottom, the second strengthening rib with the circular arc of deck strong beam bottom upwards sunken is tangent. The second reinforcing rib tangent to the arc at the bottom of the deck strong cross beam further ensures the structural strength and structural stability of the deck strong cross beam.

The above ship with the sunken LNG tank support, further, the sunken deck has one side aligned with the upper longitudinal frame and the other side aligned with the lower longitudinal frame.

In the above ship with a sunken LNG tank support, further, the number of the anti-roll toggle plates is N, the distance between the inner hull and the longitudinal bulkhead is E, the distance between the deck longitudinal beams is s, and N is E/s 4, where N is an integer.

LNG tank support stands on the deck that sinks completely, it sets up deck strong beam structure to sink deck below, this structure can also regard as the stull in this cargo hold district as deck strong beam, it combines together with deck strong beam to sink the deck, the supporting role has been played to the longitudinal bulkhead, therefore, can cancel the original stull structure in the well cargo hold, structural layout is reasonable and load distribution is even, under the condition that satisfies the overall arrangement of the LNG jar body, optimize the structure size, the structure weight has been lightened, the construction process has been simplified, and the low cost has been had, the advantage that intensity is high.

Drawings

FIG. 1 illustrates a prior art storage of LNG tanks;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a detailed structural diagram of a deck strong beam;

wherein: 1-longitudinal bulkhead, 2-sunken deck, 3-hull inner shell, 4-LNG tank support, 5-deck strong beam, 6-first reinforcing rib, 7-anti-tilt elbow plate, 8-second reinforcing rib, 9-upper longitudinal rib, 10-lower longitudinal rib and 11-panel.

Detailed Description

The invention is further explained by combining the attached drawings, and as shown in fig. 2 and 3, the ship with the sunken LNG tank support is characterized in that sunken decks are symmetrically arranged on two sides, a port side and a starboard side of a cargo hold in a ship body respectively, the sunken decks are arranged between an inner shell and a longitudinal bulkhead of the ship body, the sunken decks, the longitudinal bulkhead and the inner shell of the ship body form a groove, and the LNG tank is positioned in the groove. LNG tank support welding is on the deck that sinks, and LNG tank support is undercut's arc, and its surface bonds has the panel, and the panel surface is provided with epoxy, and the LNG jar is placed on LNG tank support. A deck strong beam is fixed below the sinking deck, the top of the deck strong beam is welded with the deck, and the bottom of the deck strong beam is in an upwards sunken arc shape and is welded with an inner shell and a longitudinal bulkhead of the ship body.

Two first reinforcing ribs are transversely arranged on the deck strong cross beam, the distances formed between the two first reinforcing ribs and the deck strong cross beam are respectively A1, A2 and A3 from top to bottom, and A1 is greater than A2 is greater than A3. The deck strong beam is also provided with a longitudinal anti-tilting toggle plate which is vertical to the first reinforcing rib. And a second reinforcing rib is arranged between the first reinforcing rib positioned at the lowest part of the deck strong cross beam and the edge of the bottom of the deck strong cross beam, and the second reinforcing ribs are arranged at two ends of the deck strong cross beam and are tangent to the arc at the bottom of the deck strong cross beam.

The number of the elbow preventing plates N can be determined according to the actual size of the ship body, wherein N is E/S4 (the final result is an integer), E is the distance between the inner shell of the ship body and the longitudinal bulkhead, and S is the distance between longitudinal bones of the deck.

The sunken deck structure and the structure for fixing the deck strong beam below the sunken deck have simple structures, can greatly reduce the weight of the empty ship, simplify the construction process, are beneficial to on-site construction and sectional butt joint, and reduce excessive labor waste.

Claims

1. The utility model provides a ship with formula of sinking LNG jar supports, has LNG jar, its characterized in that: sunken decks (2) are respectively arranged at a bow part, a port side and a starboard side of the ship body, the sunken decks are arranged between a longitudinal bulkhead (1) and an inner shell (3) of the ship body, arc-shaped LNG tank supports (4) are fixedly welded on the sunken decks, arc-shaped panels (11) are bonded on the upper surfaces of the LNG tank supports, and the panels are matched with the LNG tank supports; the lower part of the sunken deck is provided with a deck strong beam (5), the top of the deck strong beam is welded with the deck, the bottom of the deck strong beam is in an upward sunken arc shape, the deck strong beam is further provided with a plurality of transverse first reinforcing ribs (6) and a plurality of longitudinal anti-tilting brackets (7), and the LNG tank is fixed on the LNG tank support.

2. Vessel with submerged LNG tank support according to claim 1, characterized in that: and epoxy resin is arranged on the upper surface of the panel.

3. Vessel with submerged LNG tank support according to claim 1, characterized in that: the first reinforcing rib is perpendicular to the anti-tilting toggle plate, and the first reinforcing rib is connected with the anti-tilting toggle plate in a welding mode.

4. Vessel with submerged LNG tank support according to claim 1, characterized in that: the distance between the two first reinforcing ribs and the deck strong cross beam is respectively A1, A2 and A3 from top to bottom, and A1 is greater than A2 and A3.

5. Vessel with submerged LNG tank support according to claim 4, characterized in that: 0< a1<1200, 0< a2<1000, 0< A3< 800.

6. Vessel with submerged LNG tank support according to claim 1, characterized in that: and a second reinforcing rib (8) is arranged between the first reinforcing rib and the edge of the bottom of the deck strong cross beam at the lowermost part, and the second reinforcing rib is tangent to the upward sunken circular arc at the bottom of the deck strong cross beam.

7. Vessel with submerged LNG tank support according to claim 1, characterized in that: one side of the sinking deck is aligned with the upper longitudinal frame (9) and the other side is aligned with the lower longitudinal frame (10).

8. Vessel with submerged LNG tank support according to claim 1, characterized in that: the number of the anti-elbow plates is N, the distance between the inner shell and the longitudinal bulkhead is E, the distance between longitudinal bones of the deck is s, N is E/s 4, and N is an integer.