Middle longitudinal structure of medium-sized carbon dioxide liquefied gas carrier

Abstract

The invention discloses a middle longitudinal structure of a middle-sized carbon dioxide liquefied gas carrier. The middle longitudinal structure comprises an I-shaped supporting column composed of a face plate and a web plate. The supporting columns are arranged between the deck strong cross beam and the double-layer bottom; webs of the struts are located at the midline of the ship; a pipe tunnel is arranged below the double-layer bottom; a deck longitudinal girder is fixedly arranged on the deck strong cross beam; the supporting column comprises a supporting column body, an upper end amplifying part arranged at the top of the supporting column body and a lower end amplifying part arranged at the bottom of the supporting column body. The upper-end amplification part is fixedly connected to the deck strong cross beam, and the lower-end amplification part is fixedly connected to the double-layer bottom; the top of the panel of the upper end amplification part is aligned with the deck longitudinal girder; a top toggle plate is fixedly arranged between the panel of the upper end amplification part and the deck reinforcing cross beam; the bottom of the panel of the lower enlarged portion is aligned with the longitudinal bulkhead of the tunnel. Load transmission of the upper end and the lower end of the supporting column is facilitated, and the structure is firmer; and the economical efficiency of the ship is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of ships, and in particular to a mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship. Background Art

[0002] Due to the arrangement of the liquid tank holds on both sides of the ship, the ship width increases accordingly. The span of the deck strong beam of a medium-sized carbon dioxide liquefied gas ship can reach more than 25 meters. In order to reduce the span of the deck strong beam and the bottom rib plate and improve the economic performance of the ship, supports must be set in the middle of the ship to reduce the span.

[0003] Patent application with publication number CN117104390A discloses a longitudinal structure in the middle of a carbon dioxide liquefied gas ship; in this technical solution, pillars are arranged in the middle of the ship at each strong frame rib position in the cargo hold, and a bottom pier that runs through the entire cargo hold is arranged on the double bottom of the cargo hold to reduce the span of the deck strong transverse beam and the bottom rib plate.

[0004] This technical solution has the following defects:

[0005] 1. The construction of the bottom pier is rather complicated.

[0006] 2. The setting of the bottom pier increases the weight of the hull structure, increases the shipyard cost, and reduces the economic indicators of the ship. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and provide a mid-longitudinal structure for a medium-sized carbon dioxide liquefied gas ship.

[0008] The present invention solves the above technical problems through the following technical solutions:

[0009] A mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship comprises an I-shaped pillar composed of a panel and a web; the pillar is arranged between a deck transverse beam and a double bottom; the pillar is located at the centerline of the ship; a pipe lane is arranged below the double bottom, and a deck longitudinal girder is fixedly arranged on the deck transverse beam; the pillar comprises a pillar body, an upper end enlarged part arranged at the top of the pillar body, and a lower end enlarged part arranged at the bottom of the pillar body; the upper end enlarged part is fixedly connected to the deck transverse beam, and the lower end enlarged part is fixedly connected to the double bottom; the top of the panel of the upper end enlarged part is aligned with the deck longitudinal girder; a top bracket is fixedly arranged between the panel of the upper end enlarged part and the deck transverse beam; the bottom of the panel of the lower end enlarged part is aligned with the longitudinal bulkhead of the pipe lane.

[0010] Furthermore, the width of the panel of the upper end enlarged portion is greater than the width of the panel of the pillar body.

[0011] Furthermore, the width of the panel of the lower end enlarged portion is greater than the width of the panel of the support body.

[0012] Furthermore, the panel of the upper end enlarged portion and the panel of the support body are not in the same plane.

[0013] Furthermore, the panel of the lower end enlarged portion and the panel of the support body are not in the same plane.

[0014] Furthermore, there are two top brackets, which are respectively arranged on both sides of the pillar.

[0015] Furthermore, the width of the web of the upper end enlarged portion is greater than the width of the web of the pillar body.

[0016] Furthermore, the web of the upper end enlarged portion is a trapezoid that is wider at the top and narrower at the bottom.

[0017] Furthermore, the width of the web of the lower end enlarged portion is greater than the width of the web of the support body, and the web of the lower end enlarged portion is a trapezoid that is narrow at the top and wide at the bottom.

[0018] Furthermore, no bottom pier is provided between the pillars and the double bottom.

[0019] The beneficial effects of the present invention are as follows: In the present invention, the pillar is provided with an upper end enlarged part and a lower end enlarged part, the panel of the upper end enlarged part is aligned with the longitudinal girder of the deck, and top brackets are provided on both sides of the pillar, and the panel of the lower end enlarged part is aligned with the longitudinal bulkhead of the pipe. This structure facilitates the load transfer between the upper and lower ends of the pillar, making the structure more solid; the pillar is arranged at the centerline of the ship, so that the left and right spaces are uniformly symmetrical. The present invention does not provide a bottom pier, so that the weight of the supporting structure is relatively lighter, and at the same time, it also reduces a lot of welding workload in the shipyard, further improving the economy of the ship. In the construction of the present invention, only the I-shaped pillar needs to be constructed, the construction is very convenient, and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of a preferred embodiment of the present invention.

[0021] Figure 2 for Figure 1 Middle AA section view.

[0022] Figure 3 for Figure 1 Middle BB cross-section. DETAILED DESCRIPTION

[0023] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, a mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship includes an I-shaped pillar 10 composed of a face plate and a web; the pillar 10 is arranged between a deck strong transverse beam 20 and a double bottom 21.

[0025] The support column 10 is located at the centerline 23 of the ship; the support column 10 is located between the two liquid cargo tanks 60 .

[0026] A pipe tunnel 22 is provided below the double bottom 21 , and a deck longitudinal girder 24 is fixedly provided on the deck transverse beam 20 .

[0027] The support column 10 includes a support column body 50, an upper end enlarged portion 30 disposed at the top of the support column body, and a lower end enlarged portion 40 disposed at the bottom of the support column body.

[0028] The upper end enlarged portion 30 is fixedly connected to the deck strong transverse beam 20 .

[0029] The top of the panel 31 of the upper end enlarged portion 30 is aligned with the deck longitudinal girder 24. The width of the panel 31 of the upper end enlarged portion 30 is greater than the width of the panel 51 of the support body 50.

[0030] The width of the web 32 of the upper end enlarged portion 30 is greater than the width of the web 52 of the support body 50. The web 32 of the upper end enlarged portion 30 is a trapezoidal shape that is wide at the top and narrow at the bottom.

[0031] A top bracket 13 is fixedly arranged between the panel 31 of the upper end enlarged portion 30 and the deck strong transverse beam 20. There are two top brackets 13, and the two top brackets 13 are respectively arranged on both sides of the pillar 10. The top bracket is aligned with the web of the pillar.

[0032] The lower enlarged portion 40 is fixed to the double bottom 21 .

[0033] The bottom of the panel 41 of the lower end enlarged portion 40 is aligned with the longitudinal bulkhead 25 of the pipe passage 22. The bottoms of the two panels 41 of the lower end enlarged portion are aligned with the two longitudinal bulkheads 25 of the pipe passage 22, respectively.

[0034] The width of the panel 41 of the lower end enlarged portion 40 is greater than the width of the panel 51 of the support body 50 .

[0035] The width of the web 42 of the lower end enlarged portion 40 is greater than the width of the web 52 of the support body 50. The web 42 of the lower end enlarged portion 40 is a trapezoidal shape that is narrow at the top and wide at the bottom.

[0036] The panel 31 of the upper end enlarged portion 30 and the panel 51 of the support body 50 are not in the same plane.

[0037] The panel 41 of the lower end enlarged portion 40 and the panel 51 of the support body 50 are not in the same plane.

[0038] Bends are formed between the panel 31 of the upper end enlarged portion 30 and the panel 51 of the support body 50 , and between the panel 41 of the lower end enlarged portion 40 and the panel 51 of the support body 50 .

[0039] No bottom pier is provided between the pillars 10 and the double bottom 21 .

[0040] The web 32 of the upper enlarged portion 30, the web 52 of the support body 50, and the web 42 of the lower enlarged portion 40 constitute the web of the support. Preferably, the web 32 of the upper enlarged portion 30, the web 52 of the support body 50, and the web 42 of the lower enlarged portion 40 are integrally formed.

[0041] The panel 31 of the upper end enlarged part 30, the panel 51 of the pillar body 50, and the panel 41 of the lower end enlarged part 40 constitute the panel of the pillar. The panel 31 of the upper end enlarged part 30, the panel 51 of the pillar body 50, and the panel 41 of the lower end enlarged part 40 are integrally formed, or the panel 31 of the upper end enlarged part 30 and the panel 51 of the pillar body 50, and the panel 51 of the pillar body 50 and the panel 41 of the lower end enlarged part 40 are connected by welding.

[0042] It should be noted that Figure 1 In the figure, the dot-dash line between the upper end enlarged portion 30 and the support body 50 , and the dot-dash line between the support body 50 and the lower end enlarged portion 40 are only used to distinguish the upper end enlarged portion 30 , the support body 50 and the lower end enlarged portion 40 .

[0043] The present invention has the following advantages:

[0044] 1. The pillar is provided with an upper end enlargement and a lower end enlargement. The panel of the upper end enlargement is aligned with the deck longitudinal girder, and top brackets are provided on both sides of the pillar. The panel of the lower end enlargement is aligned with the longitudinal bulkhead of the pipe. This structure facilitates the load transfer between the upper and lower ends of the pillar, making the structure more solid.

[0045] 2. The pillars are set at the centerline of the ship to make the space on both sides of the ship even and symmetrical.

[0046] 3. The present invention does not have a bottom pier, so that the weight of the supporting structure is relatively lighter, and at the same time, the welding workload of a lot of shipyards is reduced, further improving the economy of the ship.

[0047] 4. In the construction of the present invention, only the I-shaped pillars need to be constructed, the construction is very convenient and the manufacturing cost is low.

[0048] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship, comprising an I-shaped pillar composed of a panel and a web; the pillar is arranged between the deck transverse beam and the double bottom; the pillar is located at the centerline of the ship; a pipe tunnel is arranged below the double bottom, and a deck longitudinal girder is fixed on the deck transverse beam; the characteristics are: The pillar includes a pillar body, an upper end enlarged part arranged at the top of the pillar body and a lower end enlarged part arranged at the bottom of the pillar body; the upper end enlarged part is fixedly connected to the deck strong transverse beam, and the lower end enlarged part is fixedly connected to the double bottom; the top of the panel of the upper end enlarged part is aligned with the deck longitudinal girder; a top bracket is fixedly provided between the panel of the upper end enlarged part and the deck strong transverse beam; the bottom of the panel of the lower end enlarged part is aligned with the longitudinal bulkhead of the pipe lane.

2. The mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship according to claim 1, characterized in that: The width of the panel of the upper end enlarged portion is greater than the width of the panel of the pillar body.

3. The mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship according to claim 1, characterized in that: The width of the panel of the lower end enlarged portion is greater than the width of the panel of the support body.

4. The mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship according to claim 1, characterized in that: The panel of the upper end enlarged portion and the panel of the support body are not in the same plane.

5. The mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship according to claim 1, characterized in that: The panel of the lower end enlarged portion and the panel of the support body are not in the same plane.

6. The mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship according to claim 1, characterized in that: There are two top brackets, which are respectively arranged on both sides of the support.

7. The mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship according to claim 1, characterized in that: The width of the web of the upper end enlarged portion is greater than the width of the web of the support body.

8. The mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship according to claim 7, characterized in that: The belly plate of the enlarged portion at the upper end is a trapezoid that is wide at the top and narrow at the bottom.

9. The mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship according to claim 1, characterized in that: The width of the web of the lower end enlarged portion is greater than the width of the web of the support body, and the web of the lower end enlarged portion is a trapezoid with a narrow upper portion and a wide lower portion.

10. The mid-longitudinal structure of a medium-sized carbon dioxide liquefied gas ship according to claim 1, characterized in that: There is no bottom pier between the pillars and the double bottom.

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