Smoke management system of corridor in cruise ship

Abstract

The invention belongs to the technical field of ship and cruise ship fire fighting, and particularly relates to a flue gas management system of a corridor in a cruise ship. In the system, a corridor in a cruise ship is provided with a plurality of fireproof walls parallel to the ship width direction and is divided into a plurality of main vertical areas, and each area comprises a plurality of layers of deck cabins; each floor is provided with an inner corridor, a vertical escape stairway, an air conditioner room, a smoke exhaust shaft, a living cabin and a smoke exhaust fan room. The smoke management system comprises a cabin air conditioner, an air conditioner ventilation pipe, an electric closing air brake, a smoke exhaust air supplement port, a smoke exhaust port, a smoke exhaust air pipe, a smoke exhaust fan and a rainproof shutter. The air conditioner and the ventilation pipe are arranged in the air conditioner chamber. The ventilation pipe is divided into three branches, one to a port; and one to a starboard. The smoke exhaust air pipe is arranged in the smoke exhaust shaft, and the smoke exhaust port is arranged away from the air supplement port and connected to the smoke exhaust branch pipe. The smoke exhaust fan is located in the fan chamber and connected with the smoke exhaust header pipe. The system integrates air supply and smoke exhaust of the air conditioner, saves cost and improves reliability.

Description

Technical Field

[0001] The invention belongs to the technical field of fire fighting of ships and cruise ships, and in particular relates to a smoke management system for an inner corridor of a cruise ship. Background Art

[0002] With the continuous prosperity of society and the rapid development of tourism, people's demand for cruise ships is increasing. The design trend of modern cruise ships is towards large-scale, luxurious and comfortable. As a result, the types and quantities of luxurious decorations, electrical equipment, entertainment facilities, etc. on cruise ships have increased significantly, resulting in a significant increase in combustibles on cruise ships. This not only increases the potential risk of fire, but also further increases the probability of fire caused by personnel accidents due to the significant increase in the number of passengers on cruise ships.

[0003] The design and construction of cruise ships in my country has just started, and many design concepts and practices still follow the standards of conventional ships, including fire prevention, fire detection and fire extinguishing systems. Although the existing cruise ship design attaches importance to fire fighting measures, the level of attention paid to the smoke generated by the fire is relatively low. The harm of smoke in a fire cannot be ignored, especially in the narrow corridors inside the ship, which are important escape routes for personnel evacuation.

[0004] At present, ships are generally only equipped with water fire fighting or water mist fire fighting systems, and there are almost no special measures for smoke control in the corridor during fire. Once a fire occurs in a ship's cabin, the smoke will spread out of the fire source room through the door gaps and holes, and spread horizontally along the top of the inner corridor to both ends. As the smoke spreads horizontally, accompanied by heat loss, the smoke will sink downward, resulting in reduced visibility, seriously affecting the evacuation and evacuation of personnel. In this case, the accumulation of smoke in the inner corridor not only poses a great obstacle to the safe evacuation of personnel and rescue activities, but also the carbon monoxide, carbon dioxide, hydrogen fluoride, hydrogen chloride and other toxic and harmful substances contained in the smoke are extremely harmful to the human body. At the same time, high temperature and lack of oxygen will also cause great harm to the human body.

[0005] According to relevant fire statistics, 85% of fire deaths are caused by smoke. As a high-temperature fluid, smoke may scatter randomly if not effectively controlled, igniting combustible materials in other places, thus causing a larger fire, which will bring huge economic losses to expensive cruise ships. Cruise ships have a large number of people and long evacuation times, which makes smoke control in corridors particularly important. Therefore, it is necessary to design and implement an effective smoke management system for the corridors inside cruise ships. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] The present invention mainly aims at the above problems and proposes a smoke management system for the inner corridor of a cruise ship, the purpose of which is to solve the problem of smoke accumulation in the inner corridor of the cruise ship in the event of a fire, so as to improve the safety and efficiency of personnel evacuation.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned object, the present invention provides a smoke management system for an inner corridor of a cruise ship, wherein the smoke management system is arranged in the inner corridor of the cruise ship, wherein: the inner corridor of the cruise ship is provided with several fireproof partition walls parallel to the ship width direction, and the cruise ship living area and the inner corridor are divided into several main vertical zones, each of which includes several deck cabins; each deck cabin includes an inner corridor, two vertical escape ladders (large ladder and small ladder), an air-conditioning room, a vertical smoke exhaust shaft, a cabin and a smoke exhaust fan room, and the cabin is divided into a port cabin and a starboard cabin;

[0010] The smoke management system includes: a cabin air conditioner, an air conditioning ventilation duct, an electric closing damper, a smoke exhaust air supply port, a smoke exhaust port, a smoke exhaust air duct, a smoke exhaust fan, and rainproof shutters, wherein:

[0011] The cabin air conditioner is arranged in the air conditioning room of each deck;

[0012] The air conditioning ventilation pipe is arranged in the air conditioning room of each deck, one end of which is connected to the cabin air conditioner, and the other end is divided into three branch pipes, the first branch pipe is connected to the smoke exhaust air supply port, and the smoke exhaust air supply port is arranged on the lower side of the left and right side wall panels of the inner corridor, the second branch pipe is connected to the port cabin, and the third branch pipe is connected to the starboard cabin;

[0013] The electric closing damper is installed on the first branch pipeline, the second branch pipeline and the third branch pipeline;

[0014] The smoke exhaust duct is installed in the vertical smoke exhaust shaft, including a smoke exhaust main pipe, an air conditioning return air branch pipe and a smoke exhaust branch pipe. The smoke exhaust main pipe is arranged from the bottom to the top of the vertical smoke exhaust shaft, and its top extends into the smoke exhaust fan room; on the path where the smoke exhaust main pipe is arranged from the bottom to the top of the vertical smoke exhaust shaft, a corresponding number of the smoke exhaust branch pipes are arranged corresponding to each deck, and the smoke exhaust branch pipes are connected to the smoke exhaust port, which is arranged in the inner corridor at a position away from the smoke exhaust air supply port and arranged on the bulkhead shared by the inner corridor and the vertical smoke exhaust shaft; one end of the air conditioning return air branch pipe is connected to the smoke exhaust branch pipe, and the other end is connected to the cabin air conditioner;

[0015] The smoke exhaust fan is installed in the smoke exhaust fan room and is connected to the smoke exhaust main pipe;

[0016] The rainproof shutter is installed at the outlet of the smoke exhaust fan.

[0017] Furthermore, the smoke exhaust and air supply port is close to the floor; the smoke exhaust port is close to the ceiling.

[0018] Furthermore, the cabin air conditioner is a heat recovery air conditioner with a rotary wheel.

[0019] Furthermore, an electric closing damper is provided on the air return branch pipe of the air conditioner.

[0020] Furthermore, a 280°C electric smoke exhaust fire damper is provided on the smoke exhaust branch pipe.

[0021] Furthermore, the smoke exhaust duct is a rectangular duct made of steel plate that meets "A" grade fire protection requirements.

[0022] Furthermore, the smoke exhaust duct is coated with fire-resistant heat-insulating material.

[0023] Furthermore, the electric smoke exhaust fire damper and the 280°C electric smoke exhaust fire damper are provided with easy-melt sheets.

[0024] Furthermore, the smoke management system also includes a smoke detector, which is arranged in the inner corridor near the ceiling.

[0025] (III) Beneficial effects

[0026] Compared with the prior art, the present invention provides a smoke management system for the inner corridor of a cruise ship. The system sets multiple fireproof partition walls in the inner corridor of the cruise ship, divides the ship's living area and the inner corridor into multiple main vertical zones, each of which is composed of several deck cabins, to ensure that smoke will not spread freely inside the ship in the event of a fire. The arrangement of the smoke exhaust air supply port and the smoke exhaust port in the inner corridor maximizes the air flow efficiency, reduces the residence time of smoke in the corridor, and directly exhausts the smoke to the outside through the smoke exhaust fan of the vertical smoke exhaust shaft system. In addition, the design of the electric closing damper and the multi-functional air conditioning and ventilation system maintains normal ventilation in non-fire conditions, and quickly switches to the smoke exhaust mode when a fire occurs, thereby maintaining the air quality of the inner corridor, speeding up the evacuation speed, and ensuring the safety of the personnel on board. The automated control and multi-point smoke exhaust capabilities of this system make it significantly superior to the prior art in dealing with smoke accumulation in the event of a fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the internal corridor layout structure of a certain deck disclosed in this application.

[0028] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle.

[0029] Figure 3 This is a schematic diagram of the principle of a smoke management system in a corridor within a main vertical zone disclosed in this application.

[0030] Figure 4 for Figure 3 A partial enlarged structural diagram of the components on the left side.

[0031] Figure 5 for Figure 3 A partial enlarged structural diagram of the components on the right side.

[0032] Figure 6 This is a plan view of the smoke management system layout in a corridor within a main vertical zone disclosed in this application.

[0033] Figure 7 for Figure 6 The working principle diagram of the cabin air conditioner.

[0034] Figure 8 for Figure 6 The schematic diagram of smoke emission control for the smoke exhaust duct.

[0035] Fig. 9 for Figure 6 Schematic diagram of the cross-sectional structure at BB in the middle.

[0036] Reference numerals shown in the figures:

[0037] 10. Fire partition wall; 11. Main vertical zone; 12. Inner corridor; 13. Large stairway; 14. Small stairway; 15. Air conditioning room; 16. Vertical smoke exhaust shaft; 17. Living cabin; 18. Smoke exhaust fan room; 17-1. Port cabin; 17-2. Starboard cabin;

[0038] 20. Cabin air conditioner; 21. Air conditioning ventilation duct; 22. Electric closing damper; 23. Smoke exhaust air supply vent; 24. Smoke exhaust vent; 25. Smoke exhaust duct; 26. Smoke exhaust fan; 27. Rainproof shutters; 28. 280℃ electric smoke exhaust fire damper; 29. ​​Smoke detector; 25-1. Smoke exhaust main pipe; 25-2. Air conditioning return air branch pipe; 25-3. Smoke exhaust branch pipe. DETAILED DESCRIPTION

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0042] In Figure 1-Figure 2 the illustrated embodiment, the present invention provides a smoke management system for an inner corridor of a cruise ship. The smoke management system is arranged in the inner corridor of the cruise ship. In order to prevent the arbitrary spread of fire in the ship's cabins, generally several fire partition walls 10 are arranged in a direction parallel to the ship's width, dividing the living area and the inner corridor of the cruise ship into a number of main vertical zones 11 with a length not greater than 48 meters. Each main vertical zone 11 includes a number of deck cabins. Each deck cabin is functionally divided into an inner corridor 12, two vertical escape stairways (a large stairway 13 and a small stairway 14), an air-conditioning machine room 15, a vertical smoke exhaust shaft 16, a stateroom 17, a smoke exhaust fan room 18, etc. (the smoke exhaust fan room 18 is shown in Figure 3 ). The inner corridor 12 is arranged in a "C" shape or an "I" shape. The two sides of the inner corridor 12 are staterooms 17, which are divided into a port side cabin 17-1 and a starboard side cabin 17-2. Between the two rows of longitudinal inner corridors 12 are staterooms 17 or service premises. The inner corridor 12 and the two vertical escape stairways form a complete escape passage for each deck. Within the same main vertical zone 11, the inner corridor 12 and the vertical smoke exhaust shaft 16 are arranged vertically aligned on each deck layer to facilitate the arrangement of the smoke management system.

[0043] As Figure 3-Figure 9 shown, the smoke management system includes: a cabin air conditioner 20, an air-conditioning ventilation duct 21, an electric closing air damper 22, a smoke exhaust air supply opening 23, a smoke exhaust opening 24, a smoke exhaust duct 25, a smoke exhaust fan 26, a rainproof louver 27, wherein:

[0044] The cabin air conditioner 20 is installed in the air conditioning room 15 of each deck. The air conditioning ventilation pipe 21 starting from the cabin air conditioner 20 is divided into three main branch pipes in the air conditioning room 15. The first branch pipe is responsible for guiding the air conditioning supply air to the smoke exhaust air supply vents 23 on the lower side of the left and right side wall panels of the inner corridor 12. These air supply vents are also used to assist smoke exhaust in the event of a fire. The second branch pipe and the third branch pipe respectively deliver air conditioning air to the port cabin 17-1 and the starboard cabin 17-2 to ensure air circulation and temperature control in the entire cabin area.

[0045] like Figure 4 , Figure 7 As shown, the electric closing dampers 22 are installed on the first branch pipeline, the second branch pipeline and the third branch pipeline, playing a key control role, allowing the system to switch ventilation and smoke exhaust modes when necessary. These electric closing dampers 22 remain open under normal circumstances to ensure that air can flow freely to the inner corridor 12, the port cabin 17-1 and the starboard cabin 17-2 to provide necessary air conditioning or ventilation. In the event of a fire, the electric closing dampers 22 can be quickly closed, especially the dampers serving the cabins, to prevent hot smoke from spreading to other areas through the air conditioning system during a fire. At the same time, the electric closing dampers 22 serving the inner corridor 12 can remain open, so that the smoke exhaust system can effectively extract smoke from the corridor, which helps to control the distribution of smoke in the corridor and keep the evacuation passage relatively clear.

[0046] like Figure 5 As described above, in the arrangement path of the smoke exhaust duct 25, the smoke exhaust duct 25 includes a smoke exhaust main pipe 25-1, an air conditioning return air branch pipe 25-2, and a smoke exhaust branch pipe 25-3. Each deck layer is equipped with a corresponding number of smoke exhaust branch pipes 25-3, and the smoke exhaust branch pipes 25-3 are connected to strategically located smoke exhaust ports 24. These smoke exhaust ports 24 are arranged on the bulkhead shared by the inner corridor 12 and the vertical smoke exhaust shaft 16, and are located away from the smoke exhaust air supply port 23 to maximize the smoke extraction efficiency. In addition, one end of the air conditioning return air branch pipe 25-2 is connected to the smoke exhaust branch pipe 25-3, and the other end is connected to the cabin air conditioner 20.

[0047] The smoke exhaust fan 26 is installed in the smoke exhaust fan room 18 and is directly connected to the smoke exhaust main pipe 25-1, ensuring that smoke can be efficiently extracted from the inner corridor 12 and discharged to the outside through the smoke exhaust system. A rainproof shutter 27 is installed at the outlet of the smoke exhaust fan 26, which not only prevents rainwater and external elements from entering the smoke exhaust system, but also helps to maintain the internal pressure and environmental stability of the smoke exhaust system, thereby enhancing the efficiency and reliability of the entire system.

[0048] When a fire occurs, smoke first accumulates under the ceiling of the inner corridor 12 to form a smoke layer. As hot smoke continues to enter the smoke layer, the bottom of the smoke layer will gradually drop. When the time required for the smoke layer to drop to a certain height (usually higher than the height of the heads of the evacuated people) is less than the time required to evacuate the people indoors, it will affect the escape and rescue of people. Mechanical smoke exhaust uses the smoke exhaust fan 26 to discharge the smoke layer above the inner corridor 12 directly to the outdoors, thereby controlling the bottom layer of smoke at a certain safe height to prevent endangering the safety of people; according to the principle of air flow, air must be supplied to exhaust the smoke. Therefore, in this embodiment, the smoke exhaust air supply port 23 is close to the floor; the smoke exhaust port 24 is close to the ceiling (see Figure 3 ).

[0049] Preferably, the cabin air conditioner 20 is a heat recovery air conditioner with a rotary wheel.

[0050] like Figure 5 As shown, the air conditioning return air branch pipe 25-2 is provided with an electric closing damper 22. The smoke exhaust branch pipe 25-3 is provided with a 280°C electric smoke exhaust fire damper 28.

[0051] The smoke exhaust duct 25 and its components should be able to maintain their structural integrity at 280°C for 30 minutes continuously. The smoke exhaust duct 25 can be made of a rectangular duct (with a thickness of at least 3mm) that meets the "A" grade fire protection requirements made of steel plates. At the same time, in order to prevent the smoke exhaust duct from rising too high and igniting the combustible materials around the smoke exhaust duct 25, the smoke exhaust duct 25 is covered with fire-resistant insulation materials and can be insulated according to the "A-30" or "A-60" standards. The 280℃ electric smoke exhaust fire damper 28 on the smoke exhaust air duct 25 and the 280℃ smoke exhaust fire damper 28 are provided with a fusible piece, whose melting point temperature is about 280℃. When the smoke temperature does not exceed 280℃ at the initial stage of a fire, the 280℃ smoke exhaust fire damper 28 is in a normally open state, and the smoke management system can exhaust smoke normally; once the smoke temperature in the smoke exhaust air duct reaches 280℃, there is fire in the smoke, the fusible piece of the smoke exhaust fire damper melts, and the 280℃ smoke exhaust fire damper 28 automatically closes; at the same time, the 280℃ smoke exhaust fire damper 28 interlocks and shuts down the smoke exhaust fan 26 and the air supply fan in the cabin air conditioner 20 to prevent the spread of fire.

[0052] like Figure 3 and Figure 6As shown, the smoke management system also includes a smoke detector 29 and an automatic control system; the smoke detector 29 is arranged at an appropriate position in the inner corridor 12, close to the ceiling, and the central control station of the automatic control system is located in the cab or the fire control station. Once the smoke detector 29 detects the presence of fire smoke in the corridor 12, the automatic control system will interlock and shut down the air conditioning and ventilation systems that are not related to the smoke management system of the burning corridor, and only keep the electric closing damper 22 on the corridor air supply pipeline in the open state, so that the smoke exhaust and air supply system in the burning corridor is in operation; at the same time, the automatic control system interlocks and opens the smoke exhaust fan 26, 280℃ electric smoke exhaust valve 28 and other facilities in the burning area to keep the system in the smoke exhaust mode. The central control station can display the opening and closing status of the smoke exhaust fan 26, air conditioning blower, smoke exhaust valve and other facilities in the burning area. In addition, the smoke management system can also be started / stopped locally in the corridor, or started / stopped at the central control station. Under the management of the automatic control system, the orderly coordinated work of the various components of the inner corridor smoke management system can be achieved.

[0053] The specific working process of the smoke management system in the cruise ship corridor:

[0054] 1. Daily air conditioning air supply mode

[0055] 1. Air conditioning: The cabin air conditioner 20 is in normal operation. The fresh air from the outside is sent to the port cabin 17-1, the starboard cabin 17-2 and the inner corridor 12 through three branch pipes after being heat-humidified by the heat recovery air conditioner with rotary wheel in the air conditioning room 25. The air supply fan adopts frequency conversion control to maintain suitable ambient temperature and humidity.

[0056] 2. Electric closing damper 22: In normal air conditioning air supply mode, the electric closing damper 22 on each branch pipeline is in the open state to ensure the normal operation of the air conditioning air supply system.

[0057] 3. Return air system: The return air outlet of the air-conditioning room 15 (including the inner corridor 12) collects the return air, which is connected to the cabin air conditioner 20 through the air-conditioning return air branch pipe 25-2 for heat recovery and then discharged to the outside.

[0058] 2. Smoke Management Mode in Case of Fire

[0059] 1. Smoke detection and automatic control activation: Once the smoke detector 29 in the inner corridor detects fire smoke, the automatic control system is immediately activated to shut down the air conditioning and ventilation systems not related to the fire corridor, and only keep the electric closing damper 22 on the fire corridor air supply duct in the open state.

[0060] 2. Smoke exhaust activation: The automatic control system interlocks to open the smoke exhaust fan and 280℃ electric smoke exhaust fire damper 28 in the fire area. The electric closing damper 22 serving the inner corridor 12 remains open, the electric closing damper 22 serving the left / right cabin is in the closed state, and the air conditioning blower is switched to low speed operation.

[0061] 3. Smoke exhaust: Mechanical smoke exhaust uses the smoke exhaust fan 26 to directly exhaust the smoke layer above the inner corridor 12 to the outside, while ensuring that the 280℃ electric smoke exhaust fire damper 28 on the smoke exhaust duct 25 is automatically closed when the smoke temperature reaches 280℃ to prevent the fire from spreading.

[0062] 4. Operation of the air supply system: In the fire smoke exhaust mode, the smoke exhaust air supply vents 23 are always open. The smoke exhaust air supply vents 23 are located on the lower side of the wall panels of the port and starboard corridors, close to the floor to avoid stirring the flowing smoke.

[0063] 5. Safety guarantee: The central control station can display the opening and closing status of smoke exhaust fans, air-conditioning blowers, smoke exhaust valves and other facilities in the fire area to ensure real-time monitoring and response to fire situations.

[0064] 3. Subsequent monitoring and control

[0065] 1. Role of the central control station: Under the supervision of the automatic control system, the various components of the inner corridor smoke management system can work together in an orderly manner to achieve effective smoke management. The central control station can also start / stop the smoke management system locally or start / stop it at the central control station to ensure flexible response to various emergencies.

[0066] 2. Regular inspection and maintenance: Regularly check the various components of the smoke management system, including smoke detectors, smoke exhaust fans, electric smoke exhaust fire dampers, etc., to ensure that the system can operate normally at critical moments.

[0067] The smoke management system in the cruise ship's inner corridor of this embodiment effectively saves layout space and initial investment by adopting the innovative design of the air-conditioning supply system serving as the smoke exhaust and air supply system and the air-conditioning return air outlet serving as the smoke exhaust outlet. At the same time, it improves the reliability of the system and the operating efficiency of the components. The entire system can respond to fire situations in a timely manner and quickly exhaust smoke through automatic control, ensuring the safe evacuation of personnel on board and the effective implementation of fire rescue, significantly improving the safety performance of the cruise ship. In addition, the centralized control of the system simplifies operation, reduces the workload of the crew, and enhances the survivability of the cruise ship in the face of fire. It complies with the requirements of the "Cruise Ship Specifications" of the China Classification Society, provides strong support for the design of large passenger ships and cruise ships, and at the same time increases the attractiveness of cruise ships to tourists and enhances tourists' confidence in the safety of cruise travel.

[0068] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present application is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it is obvious that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices stated in the device claim can also be implemented by the same unit or device through software or hardware. The words first, second, etc. are used to indicate names, and do not indicate any particular order.

[0069] The above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person skilled in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A smoke management system for a cruise ship's inner corridor, the smoke management system being arranged in the cruise ship's inner corridor, wherein: The cruise ship's inner corridor is parallel to the ship's width and is provided with several fireproof partition walls, dividing the cruise ship's living area and inner corridor into several main vertical zones, each of which includes several deck cabins; each deck cabin includes an inner corridor, two vertical escape ladders, an air-conditioning room, a vertical smoke exhaust shaft, a cabin and a smoke exhaust fan room, and the cabin is divided into a port cabin and a starboard cabin; it is characterized in that: The smoke management system includes: a cabin air conditioner, an air conditioning ventilation duct, an electric closing damper, a smoke exhaust air supply port, a smoke exhaust port, a smoke exhaust air duct, a smoke exhaust fan, and rainproof shutters, wherein: The cabin air conditioner is arranged in the air conditioning room of each deck; The air conditioning ventilation pipe is arranged in the air conditioning room of each deck, one end of which is connected to the cabin air conditioner, and the other end is divided into three branch pipes, the first branch pipe is connected to the smoke exhaust air supply port, and the smoke exhaust air supply port is arranged on the lower side of the left and right side wall panels of the inner corridor, the second branch pipe is connected to the port cabin, and the third branch pipe is connected to the starboard cabin; The electric closing damper is installed on the first branch pipeline, the second branch pipeline and the third branch pipeline; The smoke exhaust duct is installed in the vertical smoke exhaust shaft, and includes a smoke exhaust main pipe, an air conditioning return air branch pipe and a smoke exhaust branch pipe. The smoke exhaust main pipe is arranged from the bottom to the top of the vertical smoke exhaust shaft, and its top extends into the smoke exhaust fan room; on the path where the smoke exhaust main pipe is arranged from the bottom to the top of the vertical smoke exhaust shaft, a corresponding number of the smoke exhaust branch pipes are arranged corresponding to each deck, and the smoke exhaust branch pipes are connected to the smoke exhaust port, which is arranged in the inner corridor at a position away from the smoke exhaust air supply port and arranged on the bulkhead shared by the inner corridor and the vertical smoke exhaust shaft; one end of the air conditioning return air branch pipe is connected to the smoke exhaust branch pipe, and the other end is connected to the cabin air conditioner; The smoke exhaust fan is installed in the smoke exhaust fan room and is connected to the smoke exhaust main pipe; The rainproof shutter is installed at the outlet of the smoke exhaust fan.

2. A smoke management system for a cruise ship inner corridor according to claim 1, characterized in that: The smoke exhaust and air supply port is close to the floor; the smoke exhaust port is close to the ceiling.

3. A smoke management system for a cruise ship inner corridor according to claim 1, characterized in that: The cabin air conditioner is a heat recovery air conditioner with a rotary wheel.

4. A smoke management system for a cruise ship inner corridor according to claim 1, characterized in that: An electric closing damper is arranged on the air return branch pipe of the air conditioner.

5. A smoke management system for a cruise ship inner corridor according to claim 4, characterized in that: The smoke exhaust branch pipe is provided with a 280°C electric smoke exhaust fire damper.

6. A smoke management system for a cruise ship inner corridor according to claim 1, characterized in that: The smoke exhaust duct is a rectangular duct made of steel plate that meets "A" grade fire protection requirements.

7. The smoke management system for a cruise ship inner corridor according to claim 1, characterized in that: The smoke exhaust duct is coated with fire-resistant heat-insulating material.

8. A smoke management system for a cruise ship inner corridor according to claim 5, characterized in that: The electric smoke exhaust fire damper and the 280°C electric smoke exhaust fire damper are provided with easy-melt sheets.

9. A smoke management system for a cruise ship inner corridor according to claim 1, characterized in that: The smoke management system further comprises a smoke detector, which is arranged in the inner corridor near the ceiling.

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