Ship exhaust structure and ship
By combining the design of the engine room smoke exhaust well with the mast assembly, the problems of smoke pipe dust accumulation and layout in single-cab double-bow passenger roll-on/roll-off ships have been solved, resulting in cost reduction and maintenance expenses, and adapting to the needs of bidirectional navigation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG GUANGCHUAN INT MARINE SCI & TECH RES INST CO LTD
- Filing Date
- 2026-04-29
- Publication Date
- 2026-06-05
Smart Images
Figure CN122144119A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of marine technology, and in particular to a marine exhaust structure and a ship. Background Technology
[0002] For twin-bow passenger ro-ro ships with a single bridge, due to their bidirectional operation and the engine room exhaust manhole located in the middle area, two mast systems are generally installed to meet regulatory requirements. Because both the bridge and engine room areas are in the middle, the engine room exhaust manhole conflicts with the main mast's position. Exhaust fumes from the exhaust pipes are close to the main mast, making it easier for particulate matter to fall onto the signal light covers, requiring frequent cleaning. Furthermore, installing two mast systems presents layout challenges: firstly, a single bridge layout lacks a sufficiently long top deck; secondly, the main mast is difficult to integrate with other equipment requiring a certain height, appearing obtrusive. Cost-wise, the double mast system also doubles the overall cost. Summary of the Invention
[0003] The purpose of this invention is to propose a ship exhaust structure and ship, which solves the problems of exhaust pipe exhaust gas being too close to the main mast in the prior art, resulting in exhaust ash falling, as well as the layout difficulties and cost issues associated with setting up two mast systems.
[0004] To achieve this objective, the present invention adopts the following technical solution: This invention provides a ship exhaust structure, comprising: An engine room exhaust well is located at the midpoint of the hull along its length, between two engine rooms along its length. The exhaust well is connected to each engine room. Engine room fan rooms are located at both ends of the exhaust well, supplying air to the corresponding engine room. The exhaust well has an air outlet. An exhaust pipe is installed inside the exhaust well, with its opening facing outwards. The mast assembly is located above the engine room smoke exhaust well and in the center of the hull of the ship.
[0005] The engine room smoke exhaust enclosure of this ship's smoke exhaust structure is located in the middle of the ship's hull along its length, between two engine rooms along the same length. The engine room smoke exhaust enclosure is connected to each engine room, and engine room fan rooms are located at both ends of the enclosure. Air is supplied to the corresponding engine room through these fan rooms, and exhaust is achieved through the exhaust outlet of the engine room smoke exhaust enclosure. Exhaust pipes are installed inside the engine room smoke exhaust enclosure, with the pipe openings facing outwards to facilitate smoke exhaust. The mast assembly is located above the engine room smoke exhaust enclosure, in the center of the ship's hull. This ship's smoke exhaust structure combines the engine room smoke exhaust enclosure with the mast assembly, reducing the need for a separate mast system. It is suitable for ships with fore and aft engine room layouts, adapts to bidirectional navigation, reduces costs, effectively solves the problem of smoke and dust accumulation, and lowers subsequent maintenance costs.
[0006] As a preferred embodiment of the aforementioned ship exhaust structure, the engine room fan room is provided with a first air inlet at both ends along the length of the ship's hull.
[0007] The engine room fan room is equipped with first air inlets at both ends along the length of the ship’s hull. Air is introduced through the first air inlets to ensure that the ship has good fresh air in the engine room when sailing.
[0008] As a preferred embodiment of the above-mentioned ship exhaust structure, the width of the engine room fan room is greater than the width of the engine room exhaust shaft, the connection between the side wall of the engine room fan room and the engine room exhaust shaft is inclined, and a second air inlet is provided at the inclined position.
[0009] The second air intake is located on the leeward side during flight. By introducing air through the second air intake, additional fresh air can be supplied to the cabin to ensure sufficient fresh air.
[0010] As a preferred embodiment of the aforementioned ship exhaust structure, ventilation louvers are provided at both the first and second air inlets.
[0011] Ventilation louvers prevent debris from entering the engine room smoke exhaust shaft.
[0012] As a preferred embodiment of the aforementioned ship exhaust structure, the exhaust pipe has a Y-shaped structure, with two branch pipes at the top of the exhaust pipe extending from both sides of the engine room exhaust manhole toward the outside of the engine room exhaust manhole.
[0013] The two branch pipes at the top of the exhaust pipe face outward from the two sides of the exhaust manhole. When the wind direction is crosswind, the pressure at the pipe opening on the leeward side is lower, so more smoke is discharged from this side, which can effectively reduce the problem of smoke falling without adding an additional adjustable system.
[0014] As a preferred embodiment of the aforementioned ship smoke exhaust structure, air outlets are provided on both sides of the engine room smoke exhaust well, and one end of the branch pipe with the pipe opening extends into the air outlet and faces the outside of the engine room smoke exhaust well.
[0015] The vents are located on both sides of the engine room exhaust shaft. When the wind direction at sea is crosswind, the pressure at the leeward vent is lower, which facilitates exhaust. The branch pipes are designed with one end extending into the vent and facing outward from the engine room exhaust shaft, which facilitates the exhaust of gas through the vent and the exhaust of flue gas through the exhaust pipe.
[0016] As a preferred embodiment of the aforementioned ship exhaust structure, a partition is provided inside the engine room exhaust manhole to divide the engine room exhaust manhole into two exhaust sub-manholes. Each of the two exhaust sub-manholes is equipped with an exhaust pipe, and the exhaust pipe in each exhaust sub-manhole is connected to the corresponding engine room.
[0017] The exhaust pipes in the exhaust manholes are connected to the corresponding engine rooms, so that the exhaust gases from the two engine rooms can be discharged through independent exhaust pipes.
[0018] As a preferred embodiment of the aforementioned ship exhaust structure, the exhaust pipe within the exhaust manhole is vertically connected to the corresponding engine room.
[0019] The exhaust pipe in the exhaust manhole is vertically connected to the corresponding engine room, so that the flue gas in the engine room can smoothly enter the exhaust pipe in the exhaust manhole.
[0020] As a preferred embodiment of the aforementioned ship exhaust structure, the mast assembly includes: The main mast is positioned above the engine room smoke exhaust shaft; Signal lights are mounted on the main mast; Radar, with radar installed on both sides of the main mast.
[0021] The mast assembly includes the main mast, signal lights, and radar to meet usage requirements.
[0022] The present invention also provides a ship, including a ship body and a ship exhaust structure as described above disposed on the ship body.
[0023] By reducing the main mast system through the aforementioned smoke extraction and mast structure, ships can effectively solve the problem of smoke and dust accumulation.
[0024] The beneficial effects of this invention are: The proposed ship exhaust structure features an engine room exhaust manifold positioned along the length of the ship's hull at its midpoint, between two engine rooms along the same length. The manifold is connected to each engine room, with engine room fan rooms at both ends supplying air to the corresponding engine room and exhausting air through the exhaust manifold's outlet. An exhaust pipe is installed within the exhaust manifold, with its opening facing outwards to facilitate exhaust. A mast assembly is positioned above the exhaust manifold, at the center of the ship's hull. This structure combines the engine room exhaust manifold with the mast assembly, reducing the need for a separate mast system. It is suitable for ships with forward and aft engine room layouts, allowing for bidirectional navigation. This not only reduces costs but also effectively solves the problem of exhaust dust accumulation, lowering subsequent maintenance expenses.
[0025] The ship proposed in this invention reduces the number of mast systems by one through the aforementioned smoke extraction and mast structure, which not only lowers costs but also effectively solves the problem of smoke and dust accumulation, thus reducing subsequent maintenance costs. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the ship exhaust structure provided by the present invention; Figure 2 This is a cross-sectional view of the ship exhaust structure provided by the present invention.
[0027] In the picture: 1. Cabin smoke exhaust shaft; 11. Air outlet; 12. Smoke exhaust pipe; 121. Pipe opening; 13. First air inlet; 14. Second air inlet; 15. Ventilation louvers; 2. Engine room fan room; 3. Mast assembly; 31. Main mast; 32. Signal lights; 33. Radar. Detailed Implementation
[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0029] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0030] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0032] For twin-bow passenger ro-ro ships with a single bridge, due to their bidirectional operation and the engine room exhaust manhole located in the middle area, two mast systems are generally installed to meet regulatory requirements. Because both the bridge and engine room areas are in the middle, the engine room exhaust manhole conflicts with the main mast's position. Exhaust fumes from the exhaust pipes are close to the main mast, making it easier for particulate matter to fall onto the signal light covers, requiring frequent cleaning. Furthermore, installing two mast systems presents layout challenges: firstly, a single bridge layout lacks a sufficiently long top deck; secondly, the main mast is difficult to integrate with other equipment requiring a certain height, appearing obtrusive. Cost-wise, the double mast system also doubles the overall cost.
[0033] To solve the above problems, such as Figure 1 and Figure 2As shown, this embodiment provides a ship smoke exhaust structure, including an engine room smoke exhaust well 1 and a mast assembly 3. The engine room smoke exhaust well 1 is located in the middle of the ship's hull along its length and between two engine rooms along its length. The engine room smoke exhaust well 1 is connected to each engine room. Engine room fan rooms 2 are provided at both ends of the engine room smoke exhaust well 1. The engine room fan rooms 2 are used to supply air to the corresponding engine rooms. The engine room smoke exhaust well 1 is provided with an air outlet 11. A smoke exhaust pipe 12 is provided inside the engine room smoke exhaust well 1, and the pipe opening 121 of the smoke exhaust pipe 12 faces the outside of the engine room smoke exhaust well 1. The mast assembly 3 is located above the engine room smoke exhaust well 1 and in the middle of the ship's hull.
[0034] This ship's smoke exhaust structure combines the engine room smoke exhaust well 1 with the mast assembly 3, reducing the number of mast systems. It is suitable for ships with forward and aft engine room layouts, adapts to bidirectional navigation, and avoids the problem of insufficient roof length for the ship's main body. It also avoids the problem of being difficult to integrate with other equipment that requires a certain height, thus avoiding any awkwardness. This not only reduces costs but also effectively solves the problem of smoke and dust accumulation, reducing subsequent maintenance costs.
[0035] Optionally, the engine room fan room 2 is provided with a first air inlet 13 at both ends along the length of the ship’s main body, and the air intake through the first air inlet 13 ensures that the ship has good fresh air in the engine room when sailing.
[0036] Optionally, the width of the engine room fan room 2 is greater than the width of the engine room smoke exhaust shaft 1. The connection between the side wall of the engine room fan room 2 and the engine room smoke exhaust shaft 1 is inclined, that is, the side wall of the engine room fan room 2 is recessed inward and connected to the engine room smoke exhaust shaft 1. A second air inlet 14 is set at the inclined position. The second air inlet 14 is located on the leeward side during navigation. Air intake through the second air inlet 14 can supplement the engine room with additional fresh air to ensure sufficient fresh air.
[0037] Optionally, ventilation louvers 15 are provided at both the first air inlet 13 and the second air inlet 14. The ventilation louvers 15 prevent debris from entering the engine room exhaust shaft 1.
[0038] In this embodiment, the exhaust pipe 12 has a Y-shaped structure. Two branch pipes at the top of the exhaust pipe 12 extend from both sides of the engine room exhaust manhole 1 towards the outside of the engine room exhaust manhole 1. This Y-shaped exhaust pipe 12 is concealed within the engine room exhaust manhole 1 and is integrated with the air intake and exhaust system of the engine room fan room 2, a clever design. When the sea wind direction is crosswind, one side is the windward side and the other is the leeward side. The two branch pipes at the top of the exhaust pipe 12 extend from the windward and leeward sides towards the outside of the engine room exhaust manhole 1, respectively. The pressure at the inlet 121 of the branch pipe on the leeward side is lower, thus more smoke is discharged from this side. This effectively reduces the problem of smoke falling into the air without adding an additional adjustable system.
[0039] Optionally, air outlets 11 are provided on both sides of the engine room exhaust shaft 1. When the wind direction at sea is crosswind, the pressure of the air outlet 11 on the leeward side is lower, which facilitates exhaust. One end of the branch pipe with the pipe opening 121 extends into the air outlet 11 and faces the outside of the engine room exhaust shaft 1, which facilitates the exhaust of gas through the air outlet 11 and the exhaust of flue gas through the exhaust pipe 12. In this embodiment, ventilation louvers 15 are provided at the air outlet 11.
[0040] Optionally, a partition is installed inside the engine room smoke exhaust well 1 to divide the engine room smoke exhaust well 1 into two smoke exhaust sub-wells. Each smoke exhaust sub-well is equipped with a smoke exhaust pipe 12, and the smoke exhaust pipe 12 in the smoke exhaust sub-well is connected to the corresponding engine room. Each engine room is discharged through a set of smoke exhaust pipes 12, so that the smoke from the two engine rooms can be discharged through independent smoke exhaust pipes 12.
[0041] In this embodiment, the exhaust pipe 12 in the exhaust manhole is vertically connected to the corresponding engine room so that the flue gas in the engine room can smoothly enter the exhaust pipe 12 in the exhaust manhole.
[0042] Optionally, the mast assembly 3 includes a main mast 31, signal lights 32, and radar 33. The main mast 31 is positioned above the engine room smoke vent 1; the signal lights 32 are mounted on the main mast 31; and radar 33 is mounted on both sides of the main mast 31. The mast assembly 3, including the main mast 31, signal lights 32, and radar 33, meets the usage requirements. In this embodiment, the main mast 31 is located in the center of the ship's hull, and using a single main mast 31 is sufficient to meet the regulatory requirements for the arrangement of the signal lights 32. Furthermore, the height of the engine room smoke vent 1 itself is utilized in the vertical direction, effectively reducing the material usage of the main mast 31.
[0043] The system integrates the functions of exhaust from the engine room smoke exhaust well 1, fresh air intake and exhaust from the engine room fan room 2, and the main mast 31, signal lights 32, and radar 33 of the mast assembly 3 into one unit. It is suitable for both front and rear engine room layouts, meets multiple functions, can adapt to bidirectional travel, can significantly reduce the use of materials, lower costs, and has a positive effect on environmental protection. It can effectively solve the problem of smoke and dust accumulation and has a good appearance.
[0044] This embodiment also provides a ship, including a hull and a ship exhaust structure as described above, disposed on the hull. By using the aforementioned ship exhaust structure, the ship reduces the need for a mast system, which not only lowers costs but also effectively solves the problem of smoke and ash accumulation, reducing subsequent maintenance costs.
[0045] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A ship exhaust structure, characterized in that, include: An engine room exhaust well (1) is located in the middle of the main body of the ship along its length and between two engine rooms along its length. The engine room exhaust well (1) is connected to each engine room. Engine room fan rooms (2) are provided at both ends of the engine room exhaust well (1). The engine room fan rooms (2) are used to supply air to the corresponding engine room. The engine room exhaust well (1) is provided with an air outlet (11). An exhaust pipe (12) is provided inside the engine room exhaust well (1). The pipe opening (121) of the exhaust pipe (12) faces the outside of the engine room exhaust well (1). The mast assembly (3) is located above the engine room smoke exhaust well (1) and in the center of the ship's main body.
2. The ship exhaust structure according to claim 1, characterized in that, The engine room fan room (2) has a first air inlet (13) at both ends along the length of the ship's main body.
3. The ship exhaust structure according to claim 2, characterized in that, The width of the nacelle fan room (2) is greater than the width of the nacelle smoke exhaust well (1). The side wall of the nacelle fan room (2) is inclined at the connection with the nacelle smoke exhaust well (1). A second air inlet (14) is provided at the inclined position.
4. The ship exhaust structure according to claim 3, characterized in that, Ventilation louvers (15) are provided at both the first air inlet (13) and the second air inlet (14).
5. The ship exhaust structure according to claim 1, characterized in that, The exhaust pipe (12) has a Y-shaped structure, and the two branch pipes at the top of the exhaust pipe (12) are respectively directed from both sides of the cabin exhaust manhole (1) toward the outside of the cabin exhaust manhole (1).
6. The ship exhaust structure according to claim 5, characterized in that, Air outlets (11) are provided on both sides of the cabin smoke exhaust well (1), and one end of the branch pipe with the pipe opening (121) extends into the air outlet (11) and faces the outside of the cabin smoke exhaust well (1).
7. The ship exhaust structure according to claim 1, characterized in that, The cabin smoke exhaust well (1) is provided with a partition to divide the cabin smoke exhaust well (1) into two smoke exhaust sub-wells. Each of the two smoke exhaust sub-wells is provided with a smoke exhaust pipe (12), and the smoke exhaust pipe (12) in the smoke exhaust sub-well is connected to the corresponding cabin.
8. The ship exhaust structure according to claim 7, characterized in that, The exhaust pipe (12) in the exhaust manhole is vertically connected to the corresponding engine room.
9. The ship exhaust structure according to any one of claims 1-8, characterized in that, The mast assembly (3) includes: The main mast (31) is located above the engine room smoke exhaust well (1); Signal lights (32) are mounted on the main mast (31); Radar (33), which is installed on both sides of the main mast (31).
10. A ship, characterized in that, It includes the ship's hull and the ship exhaust structure as described in any one of claims 1-9, which is disposed on the ship's hull.