Novel ventilation structure for the side passage of a container ship

Abstract

The present invention discloses a novel ventilation structure for the side passage of a container ship, which comprises an upper ventilation pipe fixedly connected to the main deck, and the upper ventilation pipe is located above the main deck; the upper ventilation pipe does not penetrate through the main deck; an oval through hole is formed in the main deck, and the oval through hole penetrates through the inner cavity of the upper ventilation pipe and the area below the main deck; a structural air duct is arranged below the main deck, and a lower ventilation pipe is connected to the bottom of the structural air duct; the structural air duct communicates the upper ventilation pipe and the lower ventilation pipe. The present invention can effectively improve the stress distribution of the opening on the main deck, effectively reduce stress concentration, and optimize the structure; it can also improve the construction efficiency, reduce the construction cost, and make the construction easier.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and particularly relates to a novel ventilation structure for the side passage of a container ship. Background Art

[0002] For the existing ventilation structure of the side passage of a container ship, in order to ensure the effective ventilation of the side passage and solve the problems such as large stress and stress concentration caused by the opening on the main deck, the currently common design is: to transfer the ventilation to the torsion box on the cargo hold by increasing the air duct and opening oval holes on the longitudinal bulkhead, and then arranging the ventilation pipe.

[0003] This design structure is relatively complex, and there are also stress concentration problems in the holes on the longitudinal bulkhead. The size of the holes is also affected by limited space, etc., and the construction of the air duct is not easy. In actual production lofting, since the ventilation of the side passage and the ventilation of the cargo hold area are in the same space, the pipe layout is complicated, and the construction space is very tense. This brings quite a lot of difficulties to lofting and actual construction. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects existing in the prior art and provide a novel ventilation structure for the side passage of a container ship.

[0005] The present invention solves the above technical problem through the following technical solutions:

[0006] A novel ventilation structure for the side passage of a container ship, which includes an upper ventilation pipe fixedly connected to the main deck, and the upper ventilation pipe is located above the main deck; the upper ventilation pipe does not penetrate the main deck; an oval through hole is opened on the main deck, and the oval through hole penetrates the inner cavity of the upper ventilation pipe and the area below the main deck; a structural air duct is provided below the main deck, and the bottom of the structural air duct is connected with a lower ventilation pipe; the structural air duct communicates the upper ventilation pipe and the lower ventilation pipe.

[0007] The upper ventilation pipe is a circular pipe; both the major axis and the minor axis of the oval through hole are smaller than the inner diameter of the upper ventilation pipe.

[0008] The oval through hole is located within the area surrounded by the pipe wall of the upper ventilation pipe on the main deck.

[0009] The upper ventilation pipe is welded to the main deck.

[0010] The weld between the upper ventilation pipe and the main deck is located on the upper surface of the main deck.

[0011] Longitudinal stiffeners are fixedly provided at the bottom of the main deck, the main deck is fixedly arranged on the outer hull plate, and the longitudinal stiffeners and the outer hull plate form two side walls of the structural air duct.

[0012] The oval through hole is located between the longitudinal stiffeners and the outer hull plate.

[0013] The bottom of the structural air duct is provided with a bottom plate, and the bottom plate is fixedly arranged on the outer hull plate and longitudinal girder.

[0014] The lower ventilation pipe is fixedly connected to the bottom plate, and a circular through hole is opened in the bottom plate, and the circular through hole penetrates through the structural air duct and the lower ventilation pipe.

[0015] There is a bracket between the upper ventilation pipe and the main deck; the bracket is fixedly connected to the main deck and the upper ventilation pipe at the same time.

[0016] The beneficial effects of the present invention are as follows: In the present invention, the opening on the main deck can adopt an elliptical opening slightly smaller than the diameter of the upper ventilation pipe, which can effectively improve the stress distribution of the opening on the main deck, effectively reduce stress concentration, and optimize the structure; The longitudinal girder at the bottom of the original main deck and the outer hull plate are used to make the structural air duct for connecting the lower ventilation pipe, which not only solves the problem that construction cannot be carried out due to the proximity of the longitudinal girder on the main deck and the lower ventilation pipe; It can also make full use of the longitudinal girder and the outer hull plate, reduce the consumption of steel, reduce the welding workload, improve the construction efficiency, and reduce the construction cost; In addition, it can also solve the problem of difficult construction due to the narrow space in the shipyard, making the construction easier. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present invention. Detailed Embodiment

[0018] The following is a preferred embodiment, and the present invention will be described more clearly and completely in conjunction with the drawings.

[0019] As Figure 1 shown, a new type of side passage ventilation structure of a container ship includes an upper ventilation pipe 20 fixedly connected to the main deck 10, and the upper ventilation pipe 20 is located above the main deck 10; the upper ventilation pipe 20 does not penetrate the main deck 10; An elliptical through hole 11 is opened on the main deck 10, and the elliptical through hole 11 penetrates through the inner cavity of the upper ventilation pipe and the area below the main deck.

[0020] The upper ventilation pipe 20 is a circular pipe; the major axis and minor axis of the elliptical through hole 11 are both smaller than the inner diameter of the upper ventilation pipe 20. The elliptical through hole 11 is located within the area surrounded by the pipe wall of the upper ventilation pipe 20 on the main deck.

[0021] The upper ventilation pipe 20 is welded to the main deck 10. The weld between the upper ventilation pipe 20 and the main deck 10 is located on the upper surface of the main deck.

[0022] There is a bracket 21 between the upper ventilation pipe 20 and the main deck 10; the bracket 21 is fixedly connected to the main deck 10 and the upper ventilation pipe 20 at the same time.

[0023] There is a structural air duct 30 below the main deck 10.

[0024] The longitudinal girders 12 are fixedly provided at the bottom of the main deck 10. The main deck 10 is fixedly provided on the outer hull plate 50. The longitudinal girders 12 and the outer hull plate 50 form two side walls of the structural air duct 30.

[0025] The oval through hole 11 is located between the longitudinal girder 12 and the outer hull plate 50.

[0026] The bottom of the structural air duct 30 is provided with a bottom plate 31, and the bottom plate 31 is fixedly provided on the outer hull plate 50 and the longitudinal girder 12.

[0027] The lower ventilation duct 40 is connected to the bottom of the structural air duct 30. The structural air duct 30 communicates with the upper ventilation duct 20 and the lower ventilation duct 40.

[0028] The lower ventilation duct 40 is fixedly connected to the bottom plate 31. The bottom plate 31 is provided with a circular through hole 32, and the circular through hole 32 penetrates through the structural air duct 30 and the lower ventilation duct 40.

[0029] The present invention adopts a structure in which only an oval hole is opened on the main deck and the upper ventilation duct does not penetrate the main deck, and the upper ventilation duct is only welded to the main deck. In this way, the oval opening of the main deck can be slightly smaller than the diameter of the upper ventilation duct, which can effectively improve the stress distribution of the main deck opening and effectively reduce stress concentration. This structure is easier to construct than the existing connection method, reduces the pressure of the complex pipe system layout in the cargo hold, saves construction costs, and optimizes the structural design.

[0030] The present invention uses the longitudinal girders and the outer hull plate at the bottom of the original main deck to make the structural air duct for communicating with the lower ventilation duct, which not only solves the problem that construction cannot be carried out due to the proximity of the longitudinal girders on the main deck and the lower ventilation duct, but also can make full use of the longitudinal girders and the outer hull plate, reduce the consumption of steel, reduce the welding workload, improve the construction efficiency, and reduce the construction cost. In addition, it can also solve the problem of difficult construction due to the narrow space in the shipyard, making the construction easier.

[0031] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A novel side passage ventilation structure for a container ship, which comprises an upper ventilation pipe fixedly connected to the main deck, and is characterized in that, The upper ventilation pipe is located above the main deck; the upper ventilation pipe does not penetrate the main deck; an oval through-hole is opened on the main deck, and the oval through-hole penetrates the inner cavity of the upper ventilation pipe and the area below the main deck; a structural air duct is provided below the main deck, and a lower ventilation pipe is connected to the bottom of the structural air duct; the structural air duct communicates the upper ventilation pipe and the lower ventilation pipe; the upper ventilation pipe is a circular pipe; both the major axis and the minor axis of the oval through-hole are smaller than the inner diameter of the upper ventilation pipe.

2. The novel side passage ventilation structure of a container ship according to claim 1, characterized in that, The oval through-hole is located within the area enclosed by the pipe wall of the upper ventilation pipe on the main deck.

3. The novel ventilation structure for the side passage of a container ship according to claim 1, characterized in that, The connection between the upper ventilation pipe and the main deck is a welded connection.

4. The novel side passage ventilation structure of a container ship according to claim 3, characterized in that, The weld between the upper ventilation pipe and the main deck is located on the upper surface of the main deck.

5. The novel side passage ventilation structure of a container ship according to claim 1, characterized in that, Longitudinal girders are fixedly provided at the bottom of the main deck, the main deck is fixedly provided on the outer hull plate, and the longitudinal girders and the outer hull plate form two side walls of the structural air duct.

6. The novel side passage ventilation structure of a container ship according to claim 5, characterized in that, The oval through-hole is located between the longitudinal girders and the outer hull plate.

7. The novel side passage ventilation structure of a container ship according to claim 6, characterized in that, A bottom plate is provided at the bottom of the structural air duct, and the bottom plate is fixedly provided on the outer hull plate and the longitudinal girders.

8. The novel side passage ventilation structure of a container ship according to claim 7, characterized in that, The lower ventilation pipe is fixedly connected to the bottom plate, and a circular through-hole is opened on the bottom plate, and the circular through-hole penetrates the structural air duct and the lower ventilation pipe.

9. The novel ventilation structure for the side passage of a container ship according to claim 1, characterized in that, A bracket is provided between the upper ventilation pipe and the main deck; the bracket is fixedly connected to both the main deck and the upper ventilation pipe.

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