A new type of ballast tank ventilation structure for container ships

Abstract

The present invention provides a novel ballast tank ventilation structure for container ships, belonging to the technical field of ship ballast tank ventilation, including: a common ventilation pipe, the common ventilation pipe is located below the deck, both ends of the common ventilation pipe are respectively connected with a first air pipe head and a second air pipe head, the tops of the first air pipe head and the second air pipe head penetrate through the deck, and a side through the side is provided on the side of the common ventilation pipe; the air outlet of the ventilation pipe of each ballast tank is connected to the side of the common ventilation pipe. This solution has the advantages of fewer air pipe heads and fewer penetrations through the deck on the basis of meeting the ventilation requirements of the ballast tank, and since the overflow height is relatively low, the requirements for the strength of the cabin are also greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of ship ballast tank ventilation, and in particular to a novel container ship ballast tank ventilation structure. Background Art

[0002] The ballast tanks of ships need to be ventilated. Figure 1 As shown, each water ballast tank (Water Ballast Tank, abbreviated as WBT) corresponds to a ventilation pipe, which extends upward and penetrates the upper deck. With the large-scale container ships, the number of ballast tanks is increasing, and the number of ventilation pipes required is also increasing, which increases the number of openings and penetrations of the upper deck; and based on the structural strength requirements, the upper deck is increasingly made of extremely thick steel, which has restrictions on the openings, and multiple penetrations are not good for the strength of the ship structure. For this reason, the present invention provides a new type of container ship ballast tank ventilation structure. Summary of the invention

[0003] In order to solve the problem that the ventilation structure of the ballast tank of a container ship has a large number of ventilation holes on the upper deck, which affects the structural strength and is not conducive to the manufacture of large and super-large ships, the present invention provides a novel ventilation structure of the ballast tank of a container ship.

[0004] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a novel ballast tank ventilation structure of a container ship, comprising: a common ventilation pipe, the common ventilation pipe is located below the deck, the two ends of the common ventilation pipe are respectively connected to a first air pipe head and a second air pipe head, the top ends of the first air pipe head and the second air pipe head pass through the deck, and the side of the common ventilation pipe is provided with a sidewall;

[0005] The air outlet of each of the ballast tank's air vent pipes is connected to the side of the common air vent pipe;

[0006] It also includes: an auxiliary circuit, the auxiliary circuit is located below the deck and is serially connected with at least one pump;

[0007] The ventilation pipe of each ballast tank is connected to the auxiliary circuit through a negative pressure auxiliary ventilation component;

[0008] The negative pressure assisted ventilation component comprises a first flow tube and a second flow tube, a connecting channel is arranged between the first flow tube and the second flow tube, a solid baffle is fixedly connected to the inside of the connecting channel, and an annular channel is formed between the solid baffle and the inner wall of the connecting channel.

[0009] As a further description of the above technical solution:

[0010] An isolation valve is arranged on the common air permeable pipe and between two adjacent air permeable pipes.

[0011] As a further description of the above technical solution:

[0012] The auxiliary circuit is connected to the first air pipe head through a second auxiliary air pipe, and the auxiliary circuit is connected to the second air pipe head through a first auxiliary air pipe.

[0013] As a further description of the above technical solution:

[0014] Both the first auxiliary air pipe and the second auxiliary air pipe are located below the deck.

[0015] As a further description of the above technical solution:

[0016] Third interfaces and fourth interfaces are provided at both ends of the first flow pipe.

[0017] As a further description of the above technical solution:

[0018] First interfaces and second interfaces are provided at both ends of the second flow pipe.

[0019] As a further description of the above technical solution:

[0020] The first flow pipe and the second flow pipe are connected inside the housing.

[0021] Advantages of the present invention: In this solution, a common permeable air pipe is used to parallel the air pipes of each ballast tank. In order to ensure that the air permeability meets the usage requirements, an auxiliary circuit with an independent pump is set, and a negative pressure assisted ventilation component is paralleled with the air pipe of the ballast tank. Compared with the existing air permeable structure of the container ship ballast tank, this solution has the advantages of fewer air pipe heads and fewer penetrations through the deck while meeting the air permeable requirements of the ballast tank. Moreover, due to the lower overflow height, the requirement for the strength of the cabin is also greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly show a new air permeable structure of a container ship ballast tank, the following drawings are shown;

[0023] Figure 1 Schematic diagram of the existing air permeable structure of a container ship ballast tank;

[0024] Figure 2 Schematic diagram of the new air permeable structure of the container ship ballast tank of the present invention;

[0025] Figure 3 Schematic diagram of the negative pressure assisted ventilation component of the present invention.

[0026] Wherein the reference numerals in the drawings;

[0027] 1. Common ventilation pipe; 2. First air pipe head; 3. Second air pipe head; 4. Vent pipe; 5. Auxiliary circuit; 6. Pump; 7. First auxiliary air pipe; 8. Second auxiliary air pipe; 9. Through the side; 10. Negative pressure assisted ventilation component; 101. Housing; 102. First flow pipe; 103. Connecting channel; 104. Solid baffle; 105. First interface; 106. Second interface; 107. Third interface; 108. Fourth interface. Detailed implementation mode

[0028] Please refer to the appendix Figures 1 - 3 As shown in the figure, a novel ballast tank ventilation structure provided by an embodiment of the present application is shown, including: a common ventilation pipe 1, the common ventilation pipe 1 is located below the deck, both ends of the common ventilation pipe 1 are respectively connected with a first air pipe head 2 and a second air pipe head 3, the tops of the first air pipe head 2 and the second air pipe head 3 penetrate through the deck, and a through side 9 is arranged on the side of the common ventilation pipe 1, and the through side 9 is used for overflow.

[0029] The first air pipe head 2 and the second air pipe head 3 are arranged at both ends of the common ventilation pipe 1, and only two through holes need to be opened on the deck to ensure that the common ventilation pipe 1 is in a breathable state with the outside.

[0030] The air outlet of the vent pipe 4 of each ballast tank is connected to the side of the common ventilation pipe 1, that is, it is not necessary to penetrate the vent pipe 4 of the ballast tank through the deck, and it is not necessary to additionally open through holes on the deck. Compared with the method of opening a through hole on the deck for each ballast tank, this solution can increase the structural strength of the deck.

[0031] It further includes: an auxiliary circuit 5, the auxiliary circuit 5 is located below the deck, and at least one pump 6 is connected in series, and the vent pipe 4 of each ballast tank is connected to the auxiliary circuit 5 through a negative pressure assisted ventilation component 10.

[0032] When the pump 6 works, a circulating airflow is formed in the auxiliary circuit 5, and a negative pressure is formed inside the vent pipe 4 of the ballast tank by using the negative pressure assisted ventilation component 10, which is beneficial to the ventilation of each ballast tank and avoids the unsmooth flow of gas when adding or draining water, affecting the addition or drainage of water.

[0033] The negative pressure assisted ventilation component 10 has a first flow pipe 102 and a second flow pipe. A connecting channel 103 is arranged between the first flow pipe 102 and the second flow pipe. A solid baffle 104 is fixedly connected inside the connecting channel 103, and an annular channel is formed between the solid baffle 104 and the inner side wall of the connecting channel 103.

[0034] The first flow pipe 102 is arranged in series on the auxiliary circuit 5, and the second flow pipe is arranged in series on the ventilation pipe 4. During the process of gas flow inside the first flow pipe 102, it will carry part of the gas in the second flow pipe, so that a certain negative pressure state is always maintained inside the ventilation pipe 4.

[0035] Isolation valves are provided on the common ventilation pipe 1 and between adjacent two ventilation pipes 4, so that the ventilation pipes 4 of adjacent two ballast tanks will not be directly connected, which may cause unstable air pressure during drainage or water intake, resulting in inconsistent water loading amounts in each ballast tank. This solution can meet the requirements of the ship's stability.

[0036] The auxiliary circuit 5 is connected to the first air pipe head 2 through the second auxiliary air pipe 8, and the auxiliary circuit 5 is connected to the second air pipe head 3 through the first auxiliary air pipe 7. Both the first auxiliary air pipe 7 and the second auxiliary air pipe 8 are located below the deck. During the circulation process of the auxiliary circuit 5, since it carries part of the gas flowing in from the ventilation pipe 4, the air pressure of the internal circulating gas will increase, and part of the gas is discharged through the first auxiliary air pipe 7 and the second auxiliary air pipe 8.

[0037] Third interfaces 107 and fourth interfaces 108 are provided at both ends of the first flow pipe 102; first interfaces 105 and second interfaces 106 are provided at both ends of the second flow pipe. The first interfaces 105, second interfaces 106, third interfaces 107, and fourth interfaces 108 are all used for pipe connection.

[0038] The first flow pipe 102 and the second flow pipe are connected inside the housing 101, and the housing 101 is fixedly connected to the side of the deck, which is convenient for installing the negative pressure assisted ventilation component 10.

[0039] When the pump 6 of the auxiliary circuit 5 works, it can keep the inside of the ventilation pipe 4 in a negative pressure state, usually working when water needs to be added or drained, and the pump 6 can be not started at other times.

[0040] After considering the specification and the practice of the disclosure of the present invention, those skilled in the art will easily think of other embodiments of the present invention. This application is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include the common general knowledge or conventional technical means in the technical field not disclosed in the present invention. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of the present invention are pointed out by the following claims.

[0041] It should be understood that relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The present invention is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A novel ballast tank ventilation structure for a container ship, characterized in that, Including: A common ventilation pipe (1), the common ventilation pipe (1) is located below the deck, both ends of the common ventilation pipe (1) are respectively connected with a first air pipe head (2) and a second air pipe head (3), the tops of the first air pipe head (2) and the second air pipe head (3) penetrate through the deck, and a side of the common ventilation pipe (1) is provided with a side ventilation (9); The air outlet of the ventilation pipe (4) of each ballast tank is connected to the side of the common ventilation pipe (1); It further includes: an auxiliary circuit (5), the auxiliary circuit (5) is located below the deck and is serially provided with at least one pump (6); The ventilation pipe (4) of each ballast tank is connected to the auxiliary circuit (5) through a negative pressure assisted ventilation component (10); The negative pressure assisted ventilation component (10) has a first flow pipe (102) and a second flow pipe, a communication channel (103) is arranged between the first flow pipe (102) and the second flow pipe, a solid baffle plate (104) is fixedly connected inside the communication channel (103), and an annular channel is formed between the solid baffle plate (104) and the inner side wall of the communication channel (103).

2. The novel ballast tank ventilation structure of a container ship according to claim 1, characterized in that: Isolation valves are arranged on the common ventilation pipe (1) and between adjacent two ventilation pipes (4).

3. A novel ballast tank ventilation structure for a container ship according to claim 1, characterized in that: The auxiliary circuit (5) is connected to the first air pipe head (2) through a second auxiliary air pipe (8), and the auxiliary circuit (5) is connected to the second air pipe head (3) through a first auxiliary air pipe (7).

4. A novel ballast tank ventilation structure for a container ship according to claim 3, characterized in that: The first auxiliary air pipe (7) and the second auxiliary air pipe (8) are both located below the deck.

5. A novel ballast tank ventilation structure for a container ship according to claim 1, characterized in that: Third interfaces (107) and fourth interfaces (108) are arranged at both ends of the first flow pipe (102).

6. A novel ballast tank ventilation structure for a container ship according to claim 1, characterized in that: First interfaces (105) and second interfaces (106) are arranged at both ends of the second flow pipe.

7. A novel ballast tank ventilation structure for a container ship according to claim 1, characterized in that: The first flow pipe (102) and the second flow pipe are connected inside a housing (101).

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