CN115476995A - Novel ventilation structure of container ship side channel - Google Patents

Abstract

The invention discloses a novel ventilation structure for a side channel of a container ship, which comprises an upper ventilation pipe fixedly connected to the main deck, the upper ventilation pipe is located above the main deck; the upper ventilation pipe does not run through the main deck; The oval-shaped through hole runs through the inner cavity of the upper ventilation pipe and the lower area of the main deck; a structural air duct is provided under the main deck, and the bottom of the structural air duct is connected to the lower ventilation pipe; the structural air duct connects the upper ventilation pipe and the lower area of the main deck. Lower the vent pipe. The invention can effectively improve the stress distribution of the opening of the main deck, effectively reduce the stress concentration and optimize the structure; it can also improve the construction efficiency, reduce the construction cost and make the construction easier.

Description

A New Type of Ventilation Structure for Side Channels of Container Ships

technical field

The invention relates to the technical field of ships, in particular to a novel ventilation structure for side passages of container ships.

Background technique

In order to ensure the effective ventilation of the side passages of the existing container ship side passages, and to solve the problems of large stress and stress concentration on the openings of the main deck, the current commonly used design is to use additional air passages and openings on the longitudinal bulkheads. The form of the oval hole transfers the ventilation to the torsion box on the cargo hold and then arranges the ventilation pipe.

The design structure is relatively complex, and there are also stress concentration problems in the openings on the longitudinal bulkheads. The size of the openings is also affected by limited space, and the construction of air ducts is not easy. In the actual production setting out, since the ventilation of the side aisle and the ventilation of the cargo area are in the same space, the arrangement of the pipes is complicated, and the space for construction is very tight. This brings great difficulties to lofting and actual construction.

Contents of the invention

The technical problem to be solved by the present invention is to provide a novel ventilation structure for side passages of container ships in order to overcome the above-mentioned defects in the prior art.

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

A new type of ventilation structure for side passages of container ships, which includes an upper ventilation pipe fixedly connected to the main deck, 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, The elliptical through hole runs through 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 to the lower ventilation pipe; the structural air duct connects the upper ventilation pipe and the lower ventilation pipe.

The upper ventilation pipe is a round pipe; the major axis and the minor axis of the oval through hole are smaller than the inner diameter of the upper ventilation pipe.

The oval through-hole is located in the area enclosed by the pipe wall of the upper ventilation pipe on the main deck.

The upper ventilation pipe is welded to the main deck.

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

Longitudinals are fixed at the bottom of the main deck, and the main deck is fixed on the outer plating of the hull. The longitudinals and the outer plating of the hull form the two side walls of the structural air duct.

Oval through-holes are located between the longitudinals and the shell plating.

The bottom of the structural air duct is provided with a bottom plate, and the bottom plate is fixed on the hull plate and longitudinals.

The lower ventilation pipe is fixedly connected to the bottom plate, and the bottom plate is provided with a circular through hole, and the circular through hole passes through the structural air pipe and the lower ventilation pipe.

A bracket is provided between the upper ventilation pipe and the main deck; the bracket is fixed to the main deck and the upper ventilation pipe at the same time.

The beneficial effect of the present invention is that: in the present invention, the opening of the main deck can be an elliptical opening slightly smaller than the pipe diameter of the upper ventilation pipe, which can effectively improve the stress distribution of the opening of the main deck, effectively reduce stress concentration, and optimize the structure ; The structural air ducts relying on the longitudinals at the bottom of the original main deck and the outer plating of the hull are used to connect the lower ventilation ducts, which not only solves the problem that the construction cannot be carried out due to the close proximity of the main deck longitudinals to the lower ventilation ducts; It can make full use of longitudinals and hull plates, reduce the amount of steel used, reduce the workload of welding, improve construction efficiency, and reduce construction costs; in addition, it can also solve the problem of difficult construction in shipyards due to small space, making construction easier .

Description of drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

detailed description

A preferred embodiment will be given below, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.

As shown in Figure 1, a novel container ship side channel ventilation structure, which includes an upper ventilation pipe 20 fixed on the main deck 10, the upper ventilation pipe 20 is located above the main deck 10; the upper ventilation pipe 20 does not pass through the main deck 10. An elliptical through hole 11 is opened on the main deck 10, and the elliptical through hole 11 runs through the inner cavity of the upper ventilation pipe and the lower area of the main deck.

The upper ventilation pipe 20 is a round pipe; both the major axis and the minor axis of the oval through hole 11 are smaller than the inner diameter of the upper ventilation pipe 20 . The oval through hole 11 is located in the area enclosed by the pipe wall of the upper ventilation pipe 20 on the main deck.

The upper ventilation pipe 20 is welded to the main deck 10 . The welding seam between the upper ventilation pipe 20 and the main deck 10 is located on the upper surface of the main deck.

A bracket 21 is provided between the upper ventilation pipe 20 and the main deck 10; the bracket 21 is fixed to the main deck 10 and the upper ventilation pipe 20 at the same time.

A structural air duct 30 is provided below the main deck 10 .

Longitudinals 12 are fixed at the bottom of the main deck 10 , and the main deck 10 is fixed on the hull plate 50 , and the longitudinals 12 and the hull plate 50 form two side walls of the structural air duct 30 .

The elliptical through-hole 11 is located between the longitudinal 12 and the hull shell 50 .

The bottom of the structural air duct 30 is provided with a bottom plate 31 , and the bottom plate 31 is fixed on the hull plate 50 and the longitudinals 12 .

The bottom of the structural air duct 30 is connected with a lower air duct 40 , and the structural air duct 30 communicates with the upper air duct 20 and the lower air duct 40 .

The lower ventilation pipe 40 is fixedly connected to the bottom plate 31 , and the bottom plate 31 is provided with a circular through hole 32 , and the circular through hole 32 passes through the structural air pipe 30 and the lower ventilation pipe 40 .

The present invention adopts the structure that only elliptical holes are opened on the main deck and the upper ventilation pipe does not run through the main deck, and the upper ventilation pipe is only welded on the main deck. In this way, the opening of the main deck can be an elliptical opening slightly smaller than the diameter of the upper ventilation pipe, which can effectively improve the stress distribution of the opening of the main deck and effectively reduce stress concentration. The structure is easier to construct than the existing connection method, reduces the pressure of numerous piping arrangements in the cargo hold, saves construction costs, and optimizes the structural design.

The present invention uses the longitudinals at the bottom of the original main deck and the outer plates of the hull as structural air ducts to communicate with the lower ventilation ducts, which solves the problem that construction cannot be carried out due to the proximity of the main deck longitudinals to the lower ventilation ducts; It can also make full use of longitudinals and hull plates, reduce the amount of steel used, reduce the workload of welding, improve construction efficiency, and reduce construction costs; in addition, it can also solve the problem of difficult construction in shipyards due to small space, making construction more efficient. easy.

Although the specific implementation of the present invention has been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims (10)

1. A novel ventilation structure of a container ship side channel comprises an upper ventilation pipe fixedly connected to a main deck, and is characterized in that the upper ventilation pipe is positioned above the main deck; the upper ventilating pipe does not penetrate through the main deck; an oval through hole is formed in the main deck and penetrates through the inner cavity of the upper ventilating pipe and the lower area of the main deck; a structural air pipe is arranged below the main deck, and the bottom of the structural air pipe is connected with a lower ventilation pipe; the structural air pipe is communicated with the upper ventilating pipe and the lower ventilating pipe.

2. The novel container ship side passage ventilation structure of claim 1, wherein the upper ventilation pipe is a circular pipe; the major axis and the minor axis of the oval through hole are both smaller than the inner diameter of the upper vent pipe.

3. A novel container ship side passage ventilation structure as claimed in claim 2, wherein the oval through hole is located in the area surrounded on the main deck by the pipe wall of the upper ventilation pipe.

4. The ventilation structure of the container ship side passage of claim 1, wherein the upper ventilation pipe is welded to the main deck.

5. A novel container ship side passage ventilation structure as claimed in claim 4, wherein the weld of the upper ventilation pipe to the main deck is located on the upper surface of the main deck.

6. The novel container ship side channel ventilation structure of claim 1, wherein the bottom of the main deck is fixedly provided with the longitudinal ribs, the main deck is fixedly arranged on the outer hull plate, and the longitudinal ribs and the outer hull plate form two side walls of the structural air duct.

7. The novel container ship side passage ventilation structure of claim 6, wherein the oval through-hole is located between the longitudinals and the outer hull plate.

8. The novel container ship side passage ventilation structure defined in claim 7, wherein the bottom of the structural air duct is provided with a bottom plate, and the bottom plate is fixedly arranged on the outer plate of the ship body and the longitudinal frame.

9. The ventilation structure of the container ship side passage as claimed in claim 8, wherein the lower ventilation pipe is fixedly connected to the bottom plate, the bottom plate is provided with a circular through hole, and the circular through hole penetrates through the structural air pipe and the lower ventilation pipe.

10. A novel container ship side passage ventilation structure as claimed in claim 1, wherein a toggle plate is provided between the upper ventilation pipe and the main deck; the toggle plate is fixedly connected to the main deck and the upper ventilating pipe.

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