Cruise ship aft central ventilation system

Abstract

The application discloses a centralized ventilation system for the tail of a cruise ship, comprising a centralized ventilation platform, a ventilation unit and a plurality of exhaust branch pipes; the centralized ventilation platform is arranged on the top of the elevator machine room at the tail of the cruise ship and protrudes upward from the deck of the area where the elevator machine room is located; a plurality of ventilation openings are arranged on the centralized ventilation platform; the ventilation unit is correspondingly arranged on each ventilation opening; the first end of each exhaust branch pipe is connected with the exhaust opening of each room requiring exhaust at the tail of the cruise ship, and the second end of each exhaust branch pipe is connected with the ventilation opening of the centralized ventilation platform; the exhaust branch pipe is used for guiding the gas to be discharged from each room requiring exhaust to the centralized ventilation platform for centralized discharge. The centralized ventilation platform arranged in the application can greatly reduce the number of structural openings of the deck and superstructure, reduces the weakening of the local structural strength of the ship body, and is favorable for guaranteeing the structural safety of the tail of the cruise ship.

Description

Technical Field

[0001] This application relates to the field of cruise ship ventilation technology, and more particularly to a centralized ventilation system at the stern of a cruise ship. Background Technology

[0002] In the existing cruise ship ventilation system design, the ventilation and exhaust of the cabins at the stern of the cruise ship are mostly arranged in a decentralized manner. Each room that needs ventilation usually has an independent ventilation duct installed near the cabin to directly exhaust the indoor exhaust gas to the outside.

[0003] This arrangement is simple in structure and widely used in cruise ship ventilation systems. However, it also has several drawbacks in practical use and shipbuilding. First, the numerous dispersed ventilation ducts exposed on the hull disrupt the overall integrity and aesthetics of the cruise ship's stern, affecting the overall design. Second, the exhaust points are scattered and close to passenger activity areas, making the exhaust airflow prone to disturbing the surrounding environment and reducing passenger comfort. Third, installing numerous dispersed ventilation ducts requires drilling many mounting holes in the hull structure, significantly weakening the structural strength of the superstructure at the stern and posing certain safety hazards. Furthermore, the independent setup of each ventilation duct makes unified opening and closing control impossible, resulting in cumbersome and inconvenient operation. The dispersed arrangement also necessitates multi-point inspections, maintenance, and repairs, greatly increasing the workload and operating costs. Summary of the Invention

[0004] The purpose of this invention is to provide a centralized ventilation system for the stern of a cruise ship, which can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] On the one hand, a centralized ventilation system for the stern of a cruise ship is provided, including: A centralized ventilation platform is located on top of the elevator machine room at the stern of the cruise ship, and protrudes upwards from the deck where the elevator machine room is located; the centralized ventilation platform is a closed cavity structure; and multiple ventilation openings are provided on the centralized ventilation platform. A ventilation unit is installed on each of the ventilation openings; A number of exhaust branch pipes are provided, with the first end of each exhaust branch pipe connected to the exhaust vent of each room requiring ventilation at the stern of the cruise ship, and the second end of each exhaust branch pipe connected to the ventilation vent of the centralized ventilation platform. The exhaust branch pipes are used to guide the gas to be discharged from each room requiring ventilation to the centralized ventilation platform for centralized discharge.

[0007] Preferred options also include: The exhaust main duct connects the ventilation opening of the centralized ventilation platform to the second end of each of the exhaust branch ducts.

[0008] Preferably, a plurality of the ventilation openings are disposed on the top of the centralized ventilation platform; and / or, a plurality of the ventilation openings are disposed circumferentially around the side wall of the centralized ventilation platform.

[0009] Preferably, the ventilation unit includes: A ventilation duct, wherein the first end of the ventilation duct is sealed to the ventilation opening, and the second end of the ventilation duct extends along the axial direction of the ventilation opening to the outside of the centralized ventilation platform; A ventilation louver is installed at the second end of the ventilation cylinder.

[0010] Preferably, the ventilation unit further includes: A ventilation control module is electrically connected to the ventilation louvers and is used to control the opening and closing of the ventilation louvers.

[0011] Preferably, the ventilation duct is a hollow cylindrical structure; the axial diameter of the ventilation duct gradually increases from the first end to the second end.

[0012] Preferred options also include: The main control module is communicatively connected to the ventilation unit; the main control module is used to monitor the gas flow rate in the exhaust branch pipe, determine the current ventilation demand based on the monitored gas flow rate, and adjust the ventilation status of the ventilation unit according to the current ventilation demand.

[0013] Preferred options also include: The reinforcement member is fitted onto the centralized ventilation platform and connected to the deck of the area where the elevator machine room is located; wherein, the reinforcement member is provided with a reinforcing rib, which is located between the reinforcement member and the centralized ventilation platform.

[0014] Preferably, the top of the centralized ventilation platform is a flat top or a sloping top.

[0015] Preferably, the side wall of the centralized ventilation platform is provided with an inspection port.

[0016] The beneficial effects of this application are as follows: This application proposes a centralized ventilation platform protruding upwards from the deck above the elevator machine room at the stern of the cruise ship. This platform allows for centralized exhaust from all rooms requiring ventilation at the stern, with exhaust branch pipes directly connected to the platform's vents. This eliminates the need for individual ventilation ducts scattered around each cabin, resulting in a cleaner and more streamlined appearance for the stern of the cruise ship and significantly improving its overall aesthetics. Furthermore, the centralized ventilation platform drastically reduces the number of structural openings on the deck and superstructure, minimizing weakening of local structural strength and contributing to the structural safety of the stern of the cruise ship. Attached Figure Description

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of the centralized ventilation system at the stern of a cruise ship provided in an embodiment of this application; Figure 2 This is a schematic diagram of the exhaust branch pipe layout below the centralized ventilation platform.

[0019] In the picture: 100. Central ventilation platform; 200. Elevator machine room; 300. Ventilation unit; 400. Exhaust branch pipe; 500. Deck. Detailed Implementation

[0020] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to 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 based on the specific circumstances.

[0022] In this application, 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.

[0023] Figure 1 This is a schematic diagram of the structure of the centralized ventilation system at the stern of a cruise ship provided in an embodiment of this application. Figure 1 The diagram shows a top-down view of the structure above the deck. Figure 2 This is a schematic diagram of the exhaust branch pipe layout below the centralized ventilation platform. Figure 2 The exhaust branch pipes in the diagram are not all labeled; they are for illustrative purposes only.

[0024] like Figure 1 , Figure 2 As shown, this embodiment provides a centralized ventilation system for the stern of a cruise ship, including: a centralized ventilation platform 100, ventilation units 300, and several exhaust branch pipes 400. The centralized ventilation platform 100 is located on top of the elevator machine room 200 at the stern of the cruise ship, and the centralized ventilation platform 100 protrudes upward from the deck 500 in the area where the elevator machine room 200 is located; the centralized ventilation platform 100 is a closed cavity structure; the centralized ventilation platform 100 is provided with multiple ventilation openings; the ventilation units 300 are correspondingly installed on each of the ventilation openings; the first end of each exhaust branch pipe 400 is respectively connected to the exhaust opening of each room requiring ventilation at the stern of the cruise ship, and the second end of each exhaust branch pipe 400 is respectively connected to the ventilation opening of the centralized ventilation platform 100; the exhaust branch pipes 400 are used to guide the gas to be discharged from each room requiring ventilation to the centralized ventilation platform 100 for centralized discharge. In this embodiment, the exhaust gas in each room requiring ventilation at the stern of the cruise ship is collected and transported through the corresponding exhaust branch pipe 400, and flows directly into the enclosed cavity installed on the centralized ventilation platform 100 for overall convergence. The converged exhaust gas is discharged from multiple ventilation openings set on the centralized ventilation platform 100. After passing through the ventilation unit 300 set at the ventilation opening, the ventilation unit 300 adjusts the flow rate and on / off of the ventilation opening and achieves the effect of rain and dust prevention, and finally discharges the exhaust gas to the outside of the cabin.

[0025] This application proposes a centralized ventilation platform protruding upwards from the deck above the elevator machine room at the stern of the cruise ship. This platform allows for centralized exhaust from all rooms requiring ventilation at the stern, with exhaust branch pipes directly connected to the platform's vents. This eliminates the need for individual ventilation ducts scattered around each cabin, resulting in a cleaner and more streamlined appearance for the stern of the cruise ship and significantly improving its overall aesthetics. Furthermore, the centralized ventilation platform drastically reduces the number of structural openings on the deck and superstructure, minimizing weakening of local structural strength and contributing to the structural safety of the stern of the cruise ship.

[0026] In one embodiment, the system further includes a main exhaust duct, which connects the ventilation opening of the centralized ventilation platform 100 to the second ends of each of the exhaust branch pipes 400. Exhaust gases from the various ventilation rooms at the stern of the cruise ship are first collected through the corresponding exhaust branch pipes 400 to the main exhaust duct, and then centrally transported to the enclosed cavity of the centralized ventilation platform 100 before being discharged outwards. In this embodiment, the main exhaust duct allows for the aggregation of airflow from each of the exhaust branch pipes 400, balancing the exhaust pressure of each branch pipe 400, reducing mutual airflow interference, improving exhaust stability and smoothness, and simultaneously reducing vortices within the centralized ventilation platform 100, thereby improving overall exhaust efficiency.

[0027] In one embodiment, multiple vents are disposed at the top of the centralized ventilation platform 100, enabling vertical upward discharge of exhaust gas. This utilizes the natural upward trend of the exhaust gas to accelerate discharge, reduce airflow stagnation, improve overall ventilation efficiency, and prevent the formation of vortices inside the centralized ventilation platform 100. Simultaneously, the vents at the top of the centralized ventilation platform 100 effectively prevent rainwater and seawater splashes and deck debris from directly falling into the cavity of the centralized ventilation platform 100, reducing the risk of rainwater backflow into the exhaust branch pipe 400 and improving the safety of the system.

[0028] In one embodiment, a plurality of the ventilation openings are arranged circumferentially around the side wall of the centralized ventilation platform 100. Considering the specific airflow direction at the stern of a cruise ship during navigation, arranging the ventilation openings circumferentially around the side wall of the centralized ventilation platform 100 allows for adjustment of the exhaust direction according to the flow field direction at the stern, reducing airflow resistance to exhaust during navigation. Simultaneously, this arrangement of the ventilation openings also disperses the exhaust gas converging within the cavity of the centralized ventilation platform 100, reducing the airflow velocity at individual ventilation openings and decreasing exhaust noise.

[0029] In one embodiment, a plurality of ventilation openings are simultaneously disposed on the top of the centralized ventilation platform 100 and a plurality of ventilation openings are disposed circumferentially around the side wall of the centralized ventilation platform 100.

[0030] In one embodiment, the ventilation unit 300 includes a ventilation duct and ventilation louvers. A first end of the ventilation duct is sealed to the vent, and a second end of the ventilation duct extends along the axial direction of the vent to the outside of the centralized ventilation platform 100; the ventilation louvers are installed at the second end of the ventilation duct. During exhaust, the exhaust gas collected within the cavity of the centralized ventilation platform 100 enters the ventilation duct through the vent, is guided by the ventilation duct, and is discharged outside the cabin through the opened ventilation louvers. During protection, the ventilation louvers are closed, preventing rainwater, dust, sea breeze, and other foreign objects from entering the ventilation duct.

[0031] In this embodiment, the first end of the ventilation duct is sealed to the ventilation opening, which effectively prevents exhaust gas from leaking from the connection between the ventilation opening and the ventilation duct, and avoids exhaust gas stagnation in the connection area between the centralized ventilation platform 100 and the elevator machine room. The second end of the ventilation duct extends along the axis of the ventilation opening to the outside of the centralized ventilation platform 100, which can accurately guide the exhaust gas, avoid airflow diffusion and turbulence, and reduce exhaust noise. The ventilation louvers can control the opening and closing of the ventilation opening to meet the exhaust needs under different working conditions, and also play a role in preventing rain, wind and debris during exhaust.

[0032] In one embodiment, the ventilation duct is a hollow cylindrical structure; the axial diameter of the ventilation duct gradually increases from the first end to the second end. The ventilation duct structure provided in this embodiment can enlarge the exhaust outlet surface, reduce the outlet airflow velocity, reduce exhaust noise, and improve exhaust gas emission efficiency.

[0033] In one embodiment, the ventilation duct can be made of marine-grade corrosion-resistant, high-strength steel to suit the high-salt, high-humidity marine environment and extend its service life. Specifically, 10CrMoAl low-alloy corrosion-resistant steel or EH40 high-strength marine structural steel can be selected; other optional materials will not be listed here.

[0034] In one embodiment, an absorption layer is provided on the inner wall of the ventilation duct to reduce airflow noise during the exhaust process and improve comfort.

[0035] In one embodiment, the angle of the louvers can be adjusted according to the cruise ship's sailing conditions. This not only controls the appropriate exhaust volume to meet different exhaust needs but also optimizes the exhaust direction, reducing interference from external airflow.

[0036] In one embodiment, a bird net is installed on the side of the ventilation louver away from the ventilation duct (i.e., the outside of the ventilation louver) to prevent birds, marine life, etc. from accidentally entering the ventilation duct.

[0037] In one embodiment, the ventilation unit 300 further includes a ventilation control module electrically connected to the ventilation louvers for controlling the opening and closing of the ventilation louvers. The ventilation control module provided in this embodiment enables precise control of the ventilation louvers, replacing manual operation, reducing operational difficulty, and allowing for rapid switching between louver opening and closing. This facilitates timely responses to emergencies (such as heavy rain or maintenance), improving the flexibility and safety of system operation.

[0038] In one embodiment, the system further includes a main control module, which is communicatively connected to the ventilation unit 300. The main control module monitors the gas flow rate within the exhaust branch pipe 400, determines the current ventilation demand based on the monitored gas flow rate, and adjusts the ventilation state of the ventilation unit 300 according to the current ventilation demand. This embodiment accurately determines ventilation demand based on the exhaust branch pipe flow rate, avoiding ineffective exhaust, reducing system energy consumption, and improving energy efficiency. Simultaneously, real-time monitoring of flow data allows for timely detection of exhaust anomalies, facilitating rapid troubleshooting and ensuring stable system operation. Furthermore, this embodiment achieves intelligent and automated management of the cruise ship's stern centralized ventilation system, eliminating the need for manual monitoring and significantly reducing manual maintenance costs.

[0039] Furthermore, the main control module is communicatively connected to the ventilation control module in the ventilation unit 300. The main control module analyzes the collected gas flow data. Specifically, when the real-time flow data of the exhaust branch pipe is higher than a preset high threshold, it is determined that the exhaust branch pipe has a strong ventilation demand, and the main control module controls the ventilation unit to increase the opening of the ventilation louvers to increase the exhaust volume. When the real-time flow data of the exhaust branch pipe is within the preset high threshold, it is determined that the exhaust branch pipe has a normal ventilation demand, and the main control module controls the ventilation unit to maintain the opening of the ventilation louvers. When the real-time flow data of the exhaust branch pipe is lower than a preset low threshold, it is determined that the exhaust branch pipe has a low ventilation demand, and the main control module controls the ventilation unit to reduce the opening of the ventilation louvers to reduce the exhaust volume.

[0040] In one embodiment, the system further includes a reinforcement member, which is fitted onto the centralized ventilation platform 100 and connected to the deck 500 in the area where the elevator machine room 200 is located. The reinforcement member is provided with reinforcing ribs, which are located between the reinforcement member and the centralized ventilation platform 100. This increases the contact area between the reinforcement member and the centralized ventilation platform 100, improves the reinforcement effect, and prevents loosening or friction between the reinforcement member and the centralized ventilation platform 100, thereby extending the service life of the structure.

[0041] In one embodiment, the top of the centralized ventilation platform 100 is a flat top, which allows exhaust gas to be discharged vertically upwards. At the same time, the flat top can also be used to place tools or other equipment, resulting in better space utilization.

[0042] In one embodiment, the top of the centralized ventilation platform 100 is a sloping top, which can quickly drain water and snow from the top and prevent water from seeping into the cavity of the centralized ventilation platform 100. At the same time, the sloping top can also guide airflow, help improve ventilation efficiency, and reduce gas stagnation.

[0043] In one embodiment, the side wall of the centralized ventilation platform 100 is provided with an inspection port. When it is necessary to inspect or clean the interior of the centralized ventilation platform 100, the exhaust branch pipe 400 interface, the ventilation openings, and other components, personnel can enter the interior of the centralized ventilation platform 100 through the inspection port to perform the work. When there is no need for inspection or cleaning, the inspection port should be kept closed to ensure the airtightness of the interior of the centralized ventilation platform 100 and prevent exhaust gas leakage and the entry of external foreign objects.

[0044] Regarding the placement of access panels, it is important to note that the installation of reinforcements and stiffeners should avoid the locations of ventilation openings and access panels, leaving sufficient operating space to avoid affecting the installation, maintenance, and smooth airflow of the ventilation unit.

[0045] In one embodiment, the exhaust branch pipes 400 are grouped according to the areas of the stern cabins of the cruise ship, with each group corresponding to a dedicated ventilation outlet. This allows for dedicated ventilation outlets for each area, facilitating precise control, further reducing energy consumption, and improving system management flexibility. Specifically, the stern cabins of the cruise ship can be divided into port side area group, starboard side area group, and midships area group. The exhaust branch pipes 400 of each cabin in each group are aggregated and connected to dedicated ventilation outlets on the centralized ventilation platform 100. Furthermore, the main control module monitors the gas flow rate of each group of exhaust branch pipes 400 to determine the ventilation requirements of each group, and controls the ventilation units to adjust the opening or closing or degree of opening of the ventilation louvers in each area to achieve independent control of area exhaust.

[0046] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0049] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A centralized ventilation system for the stern of a cruise ship, characterized in that, include: A centralized ventilation platform (100) is located on top of the elevator machine room (200) at the stern of the cruise ship, and the centralized ventilation platform (100) protrudes upward from the deck (500) of the area where the elevator machine room (200) is located; the centralized ventilation platform (100) is a closed cavity structure; the centralized ventilation platform (100) is provided with multiple ventilation openings; A ventilation unit (300) is installed on each of the ventilation openings; A number of exhaust branch pipes (400) are provided, the first end of each of the exhaust branch pipes (400) being connected to the exhaust vents of each room requiring ventilation at the stern of the cruise ship, and the second end of each of the exhaust branch pipes (400) being connected to the ventilation vents of the centralized ventilation platform (100); the exhaust branch pipes (400) are used to guide the gas to be discharged from each room requiring ventilation to the centralized ventilation platform (100) for centralized discharge.

2. The centralized ventilation system at the stern of a cruise ship according to claim 1, characterized in that, Also includes: The exhaust main duct is connected between the ventilation opening of the central ventilation platform (100) and the second end of each of the exhaust branch ducts (400).

3. The centralized ventilation system at the stern of a cruise ship according to claim 1, characterized in that, A plurality of the ventilation openings are disposed on the top of the centralized ventilation platform (100); and / or, a plurality of the ventilation openings are disposed circumferentially around the centralized ventilation platform (100) on the side wall of the centralized ventilation platform (100).

4. The centralized ventilation system at the stern of a cruise ship according to claim 1, characterized in that, The ventilation unit (300) includes: A ventilation duct, the first end of which is sealed to the ventilation opening, and the second end of which extends along the axial direction of the ventilation opening to the outside of the centralized ventilation platform (100); A ventilation louver is installed at the second end of the ventilation cylinder.

5. The centralized ventilation system at the stern of a cruise ship according to claim 4, characterized in that, The ventilation unit (300) also includes: A ventilation control module is electrically connected to the ventilation louvers and is used to control the opening and closing of the ventilation louvers.

6. The centralized ventilation system at the stern of a cruise ship according to claim 4, characterized in that, The ventilation duct has a hollow cylindrical structure; the axial diameter of the ventilation duct gradually increases from the first end to the second end.

7. The centralized ventilation system at the stern of a cruise ship according to claim 1, characterized in that, Also includes: The main control module is communicatively connected to the ventilation unit (300); the main control module is used to monitor the gas flow rate in the exhaust branch pipe (400), determine the current ventilation demand based on the monitored gas flow rate, and adjust the ventilation state of the ventilation unit (300) according to the current ventilation demand.

8. The cruise ship stern centralized ventilation system according to any one of claims 1 to 7, characterized in that, Also includes: The reinforcement member is sleeved on the centralized ventilation platform (100) and connected to the deck (500) of the area where the elevator machine room (200) is located; wherein the reinforcement member is provided with a reinforcing rib, which is located between the reinforcement member and the centralized ventilation platform (100).

9. The cruise ship stern centralized ventilation system according to any one of claims 1 to 7, characterized in that, The top of the centralized ventilation platform (100) is flat or sloping.

10. The cruise ship stern centralized ventilation system according to any one of claims 1 to 7, characterized in that, The side wall of the centralized ventilation platform (100) is provided with an inspection port.

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