Ventilation system for ship residential area cabin
By dividing different areas on the ship and using central air conditioning and independent air conditioning systems to control air flow, the problem that the existing technology cannot effectively prevent the spread of viruses is solved, and effective control of infections within the ship is achieved.
Patent Information
- Application Number
- CN202411333695.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-02-11
AI Technical Summary
The existing ship air conditioning system cannot effectively prevent the spread of the virus, resulting in the rapid expansion of infected people on the ship.
A cabin ventilation system for residential areas of ships was designed, and the air flow was controlled and the virus was prevented by dividing clean areas, potentially polluted areas and negative pressure areas.
Effectively control the spread of virus on ships, ensure the safety of clean areas, and reduce the risk of infection in potentially contaminated areas and negative pressure areas.
Smart Images

Figure CN119408685A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of ship air conditioning, and in particular to a cabin ventilation system in a ship living area. Background Art
[0002] In order to ensure the living comfort of crew members and passengers on board, the air is generally processed centrally through the ship's centralized air-conditioning system and then distributed to each cabin. However, this cabin air-conditioning and ventilation system does not have the function of preventing the spread of viruses. When the virus spreads, it will rapidly expand the number of infected people on the ship, and then cause everyone on the ship to be infected. Summary of the invention
[0003] In order to solve the above technical problems, the present invention provides a cabin ventilation system for a ship's living area.
[0004] To achieve the above objectives, the present invention adopts the following technical solutions: A ship living area cabin ventilation system, the ship living area includes a plurality of cabins, the ventilation system includes a central air conditioner and a main exhaust duct, the plurality of cabins are divided into a clean area, a potential pollution area and a negative pressure area separated from each other, the fresh air outlet of the central air conditioner is respectively connected with the cabins in the clean area, the potential pollution area and the negative pressure area through a clean area air supply duct, a potential pollution area air supply duct and a negative pressure area air supply duct connected in parallel, the return air outlet of the central air conditioner is connected with the return air outlets of the clean area, the potential pollution area and the negative pressure area through a return air duct, an air detection device is provided on the return air duct, and a main exhaust duct is provided near the central air conditioner. A first electric damper is provided on the return air duct on one side of the adjustment, the inlet of the main exhaust duct is connected with the return air duct located between the first electric damper and the air detection device, and a second electric damper is provided at the end of the exhaust duct close to the return air duct; the potential pollution area and the negative pressure area are respectively connected with the main exhaust duct on the side of the second electric damper away from the return air duct through an exhaust branch pipe, a third electric damper is provided on each exhaust branch pipe, and an exhaust fan is connected to the outlet end of the main exhaust duct, and the first electric damper, the second electric damper, the third electric damper and the air detection system are linked and connected through a control system.
[0005] Furthermore, the ventilation system also includes a first independent air conditioner and a second independent air conditioner, the first independent air conditioner is connected to the air supply duct of the potential contamination area, the second independent air conditioner is connected to the air supply duct of the negative pressure area, and a fourth electric damper is provided on the pipe between the fresh air outlet of the central air conditioner and the inlet of the air supply duct of the potential contamination area and the inlet of the air supply duct of the negative pressure area. Two sets of detection equipment are provided in the air detection device, and the fourth electric damper is electrically controlled and connected to the two sets of detection equipment.
[0006] Furthermore, a first buffer chamber is provided inside the potential contamination area, and the first buffer chamber is located at the passage opening leading from the potential contamination area to the clean area; a second buffer chamber is provided inside the negative pressure area, and the second buffer chamber is located at the passage opening leading from the negative pressure area to the potential contamination area; the first buffer chamber and the second buffer chamber are both connected to the main exhaust duct through the exhaust heads and buffer chamber exhaust branches located inside each other; a check damper is provided on the buffer chamber exhaust branch.
[0007] Furthermore, the return air duct includes a return air branch pipe in a clean area, a return air branch pipe in a potential contaminated area, a return air branch pipe in a negative pressure area, a first return air duct, a second return air duct and a return air main duct. The outlet end of the return air branch pipe in the clean area is connected to the return air main duct through the first return air duct. The return air branch pipe in the potential contaminated area and the return air branch pipe in the negative pressure area are connected to the second return air duct in sequence along the gas flow direction. The outlet end of the second return air duct is connected to the return air main duct. A fifth electric damper is provided on the first return air duct, and two sixth electric dampers are provided on the second return air duct at intervals. The two sixth electric dampers are respectively located on both sides of the connection point between the return air branch pipe in the negative pressure area and the second return air duct; the fifth electric damper and the two sixth electric dampers are connected to the control system and the electrical control; and the fifth electric damper and the two sixth electric dampers are linked to the two third electric dampers through the control system, and a ventilation grille is provided on the passage door between the first buffer room and the clean area; the air detection system and the first electric damper are located on the return air main duct, and the main exhaust duct is connected to the return air main duct.
[0008] Furthermore, the air inlets of the two exhaust branches are respectively connected to the ends of the return branch of the potential contamination area and the return branch of the negative pressure area. A non-return damper is provided on the exhaust branch, and the non-return damper is located on the side of the third electric damper close to the cabin.
[0009] Furthermore, the clean area air supply duct, the potential contamination area air supply duct and the negative pressure area air supply duct are all connected to the central air-conditioning fresh air outlet through a main air supply duct, the potential contamination area air supply duct and the negative pressure area air supply duct are connected to the main air supply duct through a secondary air supply duct, the potential contamination area air supply duct and the negative pressure area air supply duct are connected to the secondary air supply duct in sequence along the gas flow direction, and the fourth electric air damper is located on the secondary air supply duct of the potential contamination area air supply duct on the side close to the main air supply duct.
[0010] Furthermore, a primary purification unit, a secondary purification unit and a tertiary purification unit are respectively provided on the main supply air duct, the return air main duct and the main exhaust air duct. The secondary purification unit is located on the side of the air detection device close to the cabin, and the tertiary purification unit is located at one end of the main exhaust air duct close to the exhaust fan.
[0011] Furthermore, the clean area air supply duct, the potential contamination area air supply duct and the negative pressure area air supply duct are all connected to the interior of the cabin through multiple air supply branches, an anti-virus air distribution device is connected to the end of each air supply branch, and a check air damper is provided on each air supply branch.
[0012] Furthermore, a plurality of antiviral lighting lamps are provided at intervals in the inner corridors of the clean area, the potential contaminated area and the negative pressure area.
[0013] Furthermore, a plurality of exhaust fans connected in parallel are connected to the outlet end of the main exhaust duct.
[0014] The ship living area cabin ventilation system of the present invention is provided with a central air conditioner that can supply air to all the living cabins, and two independent air conditioners are provided at the same time. When virus transmission occurs on the ship, the ship's living cabins can be divided into a clean area where people with no possibility of infection live, a potential contaminated area where people with possibility of infection live, and a negative pressure area where people with confirmed infection live. The two independent air conditioners supply air to the potential contaminated area and the negative pressure area respectively, ensuring that the air in the three areas of the ship does not flow mutually, thereby effectively controlling the virus transmission on the ship. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the cabin ventilation system of the ship living area according to the present invention.
[0016] Among them, 1-central air conditioning, 2-clean area, 3-potential contamination area, 4-negative pressure area, 5-clean area air supply duct, 6-potential contamination area air supply duct, 7-negative pressure area air supply duct, 8-exhaust fan, 9-fifth electric damper, 10-air detection device, 11-first electric damper, 12-main exhaust duct, 13-second electric damper, 14-exhaust branch pipe, 15-third electric damper, 16-control system, 17-first independent air conditioner, 18-second independent air conditioner, 19-fourth electric damper, 20-main air supply duct Air duct, 21-secondary air supply duct, 22-first buffer chamber, 23-second buffer chamber, 24-exhaust head, 25-check air damper, 26-return air branch pipe in clean area, 27-return air branch pipe in potential contaminated area, 28-return air branch pipe in negative pressure area, 29-first return air duct, 30-second return air duct, 31-return air main duct, 32-sixth electric damper, 33-first-stage purification unit, 34-second-stage purification unit, 35-third-stage purification unit, 36-air supply branch pipe, 37-antiviral air distribution device, 38-antiviral lighting. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. 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.
[0018] like Figure 1 As shown, a cabin ventilation system for a ship's living area, the ship's living area includes a plurality of cabins 8, the ventilation system includes a central air conditioner 1 and a main exhaust duct 12, the plurality of cabins 8 are divided into a clean area 2, a potential contamination area 3 and a negative pressure area 4 which are isolated from each other, the fresh air outlet of the central air conditioner 1 is connected to the cabins 8 in the clean area 2, the potential contamination area 3 and the negative pressure area 4 through a clean area air supply duct 5, a potential contamination area air supply duct 6 and a negative pressure area air supply duct 7 connected in parallel, the return air outlet of the central air conditioner 1 is connected to the return air outlets of the clean area 2, the potential contamination area 3 and the negative pressure area 4 through a return air duct, an air detection device 10 is provided on the return air duct, and a The return air duct is provided with a first electric damper 11, the inlet of the main exhaust duct 12 is connected to the return air duct between the first electric damper 11 and the air detection device 10, and a second electric damper 13 is provided at one end of the main exhaust duct 12 close to the return air duct; the potential contamination area 3 and the negative pressure area 4 are respectively connected to the main exhaust duct 12 on the side of the second electric damper 13 away from the return air duct through an exhaust branch pipe 14, and a third electric damper 15 is provided on each exhaust branch pipe 14. An exhaust fan 16 is connected to the outlet end of the main exhaust duct 12, and the first electric damper 11, the second electric damper 13, the third electric damper 15 and the air detection device 10 are linked and connected through a control system 16. The wind pressure of the clean area 2, the wind pressure of the potential contamination area 3 and the wind pressure of the negative pressure area 4 decrease in sequence.
[0019] It can be understood that when the air detection device 10 sends out an alarm signal, the control system 16 controls the first electric damper 11 to close, and at the same time the second electric damper 13 and the third electric damper 15 to open, so that the return air from the clean area 2 enters the main exhaust duct 12 through the return air duct, and the exhaust air from the potential contaminated area 3 and the negative pressure area 4 directly enters the main exhaust duct 12 through the exhaust branch pipe 14, thereby preventing air carrying viruses from entering the clean area 2 through the central air conditioner 1.
[0020] In one embodiment, the ventilation system also includes a first independent air conditioner 17 and a second independent air conditioner 18, the first independent air conditioner 17 is connected to the air supply duct 6 of the potential contamination area, the second independent air conditioner 18 is connected to the air supply duct 7 of the negative pressure area, and a fourth electric damper 19 is provided on the pipe between the fresh air outlet of the central air conditioner 1 and the inlet of the air supply duct 6 of the potential contamination area and the inlet of the air supply duct 7 of the negative pressure area. Two sets of detection equipment are provided in the air detection device 10, and the fourth electric damper 19 is electrically controlled and connected to the two sets of detection equipment.
[0021] Specifically, the clean area air supply duct 5, the potential contamination area air supply duct 6 and the negative pressure area air supply duct 7 are all connected to the fresh air outlet of the central air conditioner 1 through a main air supply duct 20, the potential contamination area air supply duct 6 and the negative pressure area air supply duct 7 are connected to the main air supply duct 20 through a secondary air supply duct, the potential contamination area air supply duct 6 and the negative pressure area air supply duct 7 are connected to the secondary air supply duct 21 in sequence along the gas flow direction, and the fourth electric damper 19 is located on the secondary air supply duct 21 on the side of the potential contamination area air supply duct 6 close to the main air supply duct 20.
[0022] It can be understood that when the air detection device 10 sends out an alarm signal, the control system 16 controls the fourth electric damper 19 to close, cutting off the passage between the central air conditioner 1 and the potential danger zone and the negative pressure zone 4, and at the same time opens the first independent air conditioner 17 and the second independent air conditioner 18 to provide fresh air to the potential danger zone and the negative pressure zone 4 respectively. On the one hand, safety can be improved, and on the other hand, each zone uses independent air supply, and the central air conditioner 1 has the maximum wind pressure, which can also ensure that the clean area 2 is always at positive wind pressure.
[0023] There are two sets of detection equipment on the air detection device 10. Both tests must be qualified before the gas can enter the air conditioner. When one set of air detection devices 10 issues an alarm or confirms that the virus is spreading on the ship, the central air conditioner 1 is cut off from supplying and returning air to the potential danger zone and negative pressure zone 4, and the air is exhausted instead to ensure the accuracy of the detection and avoid contamination in the clean area 2 due to only one set of detection equipment and damage to the detection equipment.
[0024] In one embodiment, a first buffer chamber 22 is provided inside the potential contamination zone 3, and the first buffer chamber 22 is located at the passage opening from the potential contamination zone 3 to the clean zone 2; a second buffer chamber 23 is provided inside the negative pressure zone 4, and the second buffer chamber 23 is located at the passage opening from the negative pressure zone 4 to the potential contamination zone 3; the first buffer chamber 22 and the second buffer chamber 23 are both connected to the main exhaust duct 12 through the exhaust heads 24 and the buffer chamber exhaust branch pipe 14 located on their respective ceilings; a check damper 25 is provided on the buffer chamber exhaust branch pipe 14.
[0025] It can be understood that when it is necessary to transfer items between two adjacent areas, only the passage between the item source area and the buffer chamber is opened. After the items are placed in the buffer chamber and the passage between the buffer chamber and the item source area is closed, the passage between the item receiving area and the buffer chamber is opened, thereby effectively avoiding the spread of viruses caused by air flow when the items are transferred.
[0026] Furthermore, the return air duct includes a clean area return air branch 26, a potential contamination area return air branch 27, a negative pressure area return air branch 28, a first return air duct 29, a second return air duct 30 and a return air main duct 31. The outlet end of the clean area return air branch 26 is connected to the return air main duct 31 through the first return air duct 29, and the potential contamination area return air branch 27 and the negative pressure area return air branch 28 are sequentially connected to the second return air duct 30 along the gas flow direction. The outlet end of the second return air duct 30 is connected to the return air main duct 31. The first return air duct 29 is provided with a fifth electric damper 9. Two sixth electric dampers 32 are provided on the upper partition, and the two sixth electric dampers 32 are respectively located on both sides of the connection point of the negative pressure zone return air branch 28 and the second return air duct 30; the fifth electric damper 9 and the two sixth electric dampers 32 are connected to the control system 16 and the electrical control; and the fifth electric damper 9 and the two sixth electric dampers are linked to the two third electric dampers 15 through the control system 16, and a ventilation grille is provided on the passage door between the first buffer chamber 22 and the cleaning area 2; the air detection device 10 and the first electric damper 11 are located on the return air main duct 31, and the main exhaust duct 12 is connected to the return air main duct 31.
[0027] It can be understood that by setting the fifth electric damper 9 on the return air duct of the clean area 2, when virus transmission occurs, the fifth electric damper 9 is closed to cut off the passage of air from the clean area 2 to the return air duct. At the same time, no separate exhaust branch pipe 14 is set in the clean area 2. The air in the clean area 2 only flows to the potential danger area due to the positive pressure, thereby ensuring the absolute safety of the clean area 2. By setting the sixth electric damper 32, the return air ducts of the potential contaminated area 3 and the negative pressure area 4 can be cut off, so that the return air in these two areas directly enters the main exhaust duct 12, thereby further ensuring safety.
[0028] In one embodiment, the air inlets of the two exhaust branches 14 are respectively connected to the ends of the potential contamination area return air branch 27 and the negative pressure area return air branch 28. A non-return damper 25 is provided on the exhaust branch 14, and the non-return damper 25 is located on the side of the third electric damper 15 close to the cabin 8.
[0029] It can be understood that the potential pollution zone 3 and the negative pressure zone 4 have only one air outlet, which ensures the uniqueness of the exhaust outlet and ensures safety. The check valve 25 also further prevents the air in the main exhaust duct 12 from flowing back to the potential pollution zone 3 and the negative pressure zone 4.
[0030] Furthermore, a primary purification unit 33, a secondary purification unit 34 and a tertiary purification unit 35 are respectively provided on the main supply air duct 20, the return air main duct 31 and the main exhaust air duct 12. The secondary purification unit 34 is located on the side of the air detection device 10 close to the cabin 8, and the tertiary purification unit 35 is located at one end of the main exhaust air duct 12 close to the exhaust fan 16.
[0031] In the present invention, the first-level purification unit 33 can use photocatalyst, strong ultraviolet light, plasma disinfection, antiviral lighting or electrostatic adsorption technology to disinfect the return air of the air conditioner; a second-level purification unit 34 is arranged on the return air duct, and the second-level purification unit 34 can use photocatalyst, strong ultraviolet light, plasma disinfection, nano-photocatalytic technology or antiviral lighting to disinfect the return air of the air conditioner. Under normal circumstances, the two third electric dampers 15 are closed, the fifth electric damper 9 and the two sixth electric dampers 32 are opened, and the return air is disinfected by the secondary purification unit 34, and then returned to the central air conditioning 1 air mixing box after being tested by the air detection device 10. If the test fails, the fifth electric damper 9 and the two sixth electric dampers 32 are closed, and the two third electric dampers 15 are opened. At this time, the return air is merged into the exhaust system. The three-stage purification unit 35 is mainly used to treat the exhaust gas disinfection. Plasma disinfection, strong wave ultraviolet light, and electrostatic adsorption technology can be used. The exhaust gas is in accordance with the requirements. After the air is disinfected, no indicator microorganisms or target microorganisms should be detected; the extinction rate of natural microorganisms should be ≥90.00%, and it can be directly discharged into the atmosphere. The two third electric dampers 15 are linked with the five electric dampers and the two sixth electric dampers 32, one group is opened and the other group is closed.
[0032] Furthermore, the clean area air supply duct 5, the potential contamination area air supply duct 6 and the negative pressure area 4 air supply duct are all connected to the interior of the cabin 8 through multiple air supply branches 36, and an anti-virus air distribution device 37 is connected to the end of each air supply branch 36, and a check damper 25 is provided on each air supply branch 36.
[0033] It can be understood that an anti-virus air distributor 37 is provided at the end of the air supply branch pipe 36 to eliminate viruses in the fresh air, further ensuring the safety of the fresh air; the setting of the check valve 25 can prevent the air in the cabin 8 from flowing back into the air supply branch pipe 36 and contaminating the air supply pipeline.
[0034] Furthermore, a plurality of antiviral lighting lamps 38 are provided at intervals in the inner corridors of the clean area 2 , the potential contaminated area 3 and the negative pressure area 4 .
[0035] It is understandable that the use of antiviral lighting lamps 38 can further eliminate viruses present in various areas and help prevent and control the spread of viruses.
[0036] Further, a plurality of exhaust fans 16 connected in parallel are connected to the outlet end of the main exhaust duct 12. In the present application, the number of exhaust fans 16 is 2, and of course in other embodiments, 3 or 4 exhaust fans 16 may be arranged in parallel.
[0037] It is understandable that there are two exhaust fans 16, one for operation and one for standby, to prevent the ventilation system from being unable to operate due to a failure of one exhaust fan 16.
[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A cabin ventilation system for a ship's living area, wherein the ship's living area includes a plurality of cabins, characterized in that: The ventilation system includes a central air conditioner and a main exhaust duct. The multiple cabins are divided into a clean area, a potential contamination area and a negative pressure area separated from each other. The fresh air outlet of the central air conditioner is connected to the cabins in the clean area, the potential contamination area and the negative pressure area through a clean area air supply duct, a potential contamination area air supply duct and a negative pressure area air supply duct connected in parallel. The return air outlet of the central air conditioner is connected to the return air outlets of the clean area, the potential contamination area and the negative pressure area through a return air duct. An air detection device is arranged on the return air duct. A first An electric damper, the inlet of the main exhaust duct is connected to the return air duct located between the first electric damper and the air detection device, and a second electric damper is provided at one end of the exhaust duct close to the return air duct; the potential pollution area and the negative pressure area are respectively connected to the main exhaust duct on the side of the second electric damper away from the return air duct through an exhaust branch pipe, a third electric damper is provided on each exhaust branch pipe, and an exhaust fan is connected to the outlet end of the main exhaust duct, and the first electric damper, the second electric damper, the third electric damper and the air detection system are linked and connected through a control system.
2. A ship living area cabin ventilation system according to claim 1, characterized in that: The ventilation system also includes a first independent air conditioner and a second independent air conditioner, the first independent air conditioner is connected to the air supply duct of the potential pollution area, and the second independent air conditioner is connected to the air supply duct of the negative pressure area. A fourth electric damper is provided on the pipe between the fresh air outlet of the central air conditioner and the inlet of the air supply duct of the potential pollution area and the inlet of the air supply duct of the negative pressure area. Two sets of detection equipment are provided in the air detection device, and the fourth electric damper is electrically controlled and connected to the two sets of detection equipment.
3. A ship living area cabin ventilation system according to claim 1, characterized in that: A first buffer chamber is provided inside the potential contamination area, and the first buffer chamber is located at the passage opening from the potential contamination area to the clean area; a second buffer chamber is provided inside the negative pressure area, and the second buffer chamber is located at the passage opening from the negative pressure area to the potential contamination area; the first buffer chamber and the second buffer chamber are both connected to the main exhaust duct through the exhaust heads and buffer chamber exhaust branches located inside each other; a check damper is provided on the buffer chamber exhaust branch.
4. A ship living area cabin ventilation system according to claim 2, characterized in that: The return air duct comprises a return air branch pipe in a clean area, a return air branch pipe in a potential contaminated area, a return air branch pipe in a negative pressure area, a first return air duct, a second return air duct and a return air main duct. The outlet end of the return air branch pipe in the clean area is connected to the return air main duct through the first return air duct. The return air branch pipe in the potential contaminated area and the return air branch pipe in the negative pressure area are sequentially connected to the second return air duct along the gas flow direction. The outlet end of the second return air duct is connected to the return air main duct. A fifth electric damper is provided on the first return air duct. Two sixth electric dampers are provided on the second return air duct at intervals. The two sixth electric dampers are respectively located on both sides of the connection point between the return air branch pipe in the negative pressure area and the second return air duct; the fifth electric damper and the two sixth electric dampers are connected to the control system and the electric control; and the fifth electric damper and the two sixth electric dampers are connected to the two third electric dampers through the control system. A ventilation grille is provided on the passage door between the first buffer room and the clean area; the air detection system and the first electric damper are located on the return air main duct, and the main exhaust duct is connected to the return air main duct.
5. A ship living area cabin ventilation system according to claim 4, characterized in that: The air inlets of the two exhaust branches are respectively connected to the ends of the return branch of the potential pollution area and the return branch of the negative pressure area. A non-return damper is provided on the exhaust branch, and the non-return damper is located on the side of the third electric damper close to the cabin.
6. A ship living area cabin ventilation system according to claim 4, characterized in that: The clean area air supply duct, the potential contamination area air supply duct and the negative pressure area air supply duct are all connected to the central air-conditioning fresh air outlet through a main air supply duct, the potential contamination area air supply duct and the negative pressure area air supply duct are connected to the main air supply duct through a secondary air supply duct, the potential contamination area air supply duct and the negative pressure area air supply duct are connected to the secondary air supply duct in sequence along the gas flow direction, and the fourth electric air damper is located on the secondary air supply duct of the potential contamination area air supply duct on the side close to the main air supply duct.
7. A ship living cabin ventilation system according to claim 6, characterized in that: A primary purification unit, a secondary purification unit and a tertiary purification unit are respectively provided on the main air supply duct, the return air main duct and the main exhaust duct. The secondary purification unit is located on the side of the air detection device close to the cabin, and the tertiary purification unit is located at one end of the main exhaust duct close to the exhaust fan.
8. A ship living area cabin ventilation system according to claim 1, characterized in that: The clean area air supply duct, the potential contamination area air supply duct and the negative pressure area air supply duct are all connected to the interior of the cabin through multiple air supply branches, an anti-virus air distribution device is connected to the end of each air supply branch, and a check air damper is provided on each air supply branch.
9. A ship living area cabin ventilation system according to any one of claims 1 to 8, characterized in that: A plurality of antiviral lighting lamps are arranged at intervals in the inner corridors of the clean area, the potential contaminated area and the negative pressure area.
10. A ship living area cabin ventilation system according to any one of claims 1 to 8, characterized in that: A plurality of exhaust fans connected in parallel are connected to the outlet end of the main exhaust duct.
Citation Information
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