Ventilation system for anti-pirate cabin of ship

Abstract

The invention belongs to the technical field of ship ventilation, and discloses a ship anti-pirate cabin ventilation system which comprises an anti-pirate cabin. The channel is communicated with the anti-pirate cabin; the fan room is arranged on the other side of the channel; a ventilation structure is arranged in the fan room and is used for realizing airflow circulation in the anti-pirate cabin; a ventilation opening of the ventilation structure is located at the high position of the fan room. According to the technical scheme, the ventilation structure is arranged at a high position, so that the problem that oxygen supply of danger-avoiding sailors is cut off due to the fact that pirates easily find and block or damage ventilation openings is solved, and the survival probability of the sailors is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of ship ventilation and relates to a ship anti-piracy cabin ventilation system. Background Art

[0002] In today's global ocean transportation industry, ship safety has always been a matter of great concern. With the continuous increase in the volume of maritime trade, pirate attacks have become more frequent and severe, especially in some high-risk waters. Pirate attacks not only pose a great threat to the personal safety of crew members, but also cause huge losses to the safety of cargo and the economic interests of shipowners. Therefore, the necessity of ship anti-piracy cabins has become increasingly prominent and has become an indispensable part of modern ship design. In order to provide crew members with a safe refuge in the event of a pirate attack and ensure their survival under extreme conditions. The anti-piracy cabin not only needs to have physical defense capabilities, such as anti-bullet, anti-explosion and anti-intrusion characteristics, but also ensure that the basic living needs of the crew are met, including food, air, water, first aid facilities and communication equipment, so that they can maintain vital signs during isolation and wait for external assistance.

[0003] However, the realization of anti-piracy cabins is far from easy, especially in the design of ventilation systems, which are faced with many challenges. The ventilation system is one of the lifelines of anti-piracy cabins. It must ensure that there is enough fresh air in the cabin to avoid excessive carbon dioxide concentration or insufficient oxygen due to the closed environment, and ensure the safety and concealment of the system to avoid becoming a way for pirates to invade. In addition, the ship cabin ventilation system also needs to meet the requirements of relevant specifications.

[0004] Under existing technical conditions, although many ships are designed with anti-pirate cabins, the ventilation system design of the anti-pirate cabins is not fully considered, especially the design of using other cabins as anti-pirate cabins. The ventilation system design of the anti-pirate cabins often focuses on daily use needs, but ignores the special needs under extreme conditions such as pirate attacks. The following are the main problems of the ventilation system of the anti-pirate safety cabin in the existing technology:

[0005] Generally speaking, the air inlets and outlets of the cabin ventilation system on a ship are ventilators or covered weathertight shutters. The ventilators are arranged directly on the deck surface; the shutters are arranged on the bulkhead, about 2 meters above the deck. Most ships do not give special consideration to the air inlets and outlets of the anti-piracy cabins, and they are still arranged in easily accessible locations according to the conventional design. This allows pirates to easily find and block or destroy the vents, thereby cutting off the oxygen supply of the crew members taking shelter. For example, the air inlets and outlets of the anti-piracy cabins in patent application number 202310847383.5 and the paper "A Brief Analysis of the Ventilation Layout of the Anti-Piracy Cabin of a Liquid Cargo Ship" are both in the form of ventilators arranged on the deck surface. In order to prevent the vents from being easily found, some safety cabins adopt a concealed design. For example, patent application number 202111215366.7 adopts an emergency air inlet and outlet design arranged under the freeboard deck. However, the air outlet of this design is located below the freeboard, which can easily cause water to enter the cabin and threaten the safety of the ship. At the same time, the ventilation efficiency is sacrificed due to the small air outlet, resulting in poor air quality in the cabin.

[0006] In order to solve the problem of concealment of vents, some designs have adopted special designs, such as patent application numbers 201510770412.8 and 202120003783.4. However, the vents in these designs cannot be closed from the outside of the ventilation space, which does not meet the ventilation specification requirements that the main air inlet and outlet of the ventilation system should be able to be closed from the outside of the ventilation space.

[0007] In addition, the prior art does not consider the emergency situation of closing the air inlets and outlets, such as the situation where pirates create smoke or toxic gases that force the vents to be closed. There is no alternative solution to ensure the breathing of the crew in the anti-piracy cabin, and the crew may be in danger of life due to lack of oxygen. Summary of the invention

[0008] In order to solve at least one of the above technical problems, the present invention provides a ship anti-piracy cabin ventilation system.

[0009] In order to achieve the above-mentioned object, the technical solution of the present invention is to provide a ship anti-piracy cabin ventilation system, which includes:

[0010] Anti-piracy cabin;

[0011] a passage, communicating with the anti-piracy cabin;

[0012] A fan room is arranged at the other side of the passage; a ventilation structure is arranged in the fan room for realizing air circulation in the anti-pirate cabin; and a ventilating opening of the ventilation structure is located at a high position of the fan room.

[0013] This technical solution places the ventilation structure at a high position, solving the problem that pirates can easily find and block or destroy the ventilation holes, thereby cutting off the oxygen supply of the sheltering crew, thereby increasing the crew's chances of survival.

[0014] According to the present invention, further, a control station is included for controlling the air flow interruption of the ventilation structure.

[0015] According to the present invention, further, the ventilation structure includes an air intake system; the air intake system includes an air inlet arranged on the outer wall of the fan room, and the air inlet is connected to an air intake pneumatic damper arranged in the fan room through an air duct.

[0016] According to the present invention, further, the ventilation structure also includes an exhaust system; the exhaust system includes an exhaust outlet arranged on the outer wall of the fan room, the exhaust outlet is connected to the exhaust fan arranged in the fan room through an air duct, the air duct is provided with an exhaust pneumatic damper, one end of the air duct is connected to an exhaust grille, and the exhaust grille is located in the anti-piracy cabin.

[0017] According to the present invention, further, the air inlet and the air outlet are at least 4.6 meters above the deck.

[0018] According to the present invention, further, a ventilated cover is provided at the air inlet and the air outlet. The cover can cover the air outlet to hide the air outlet and reduce the possibility of damage by pirates.

[0019] According to the present invention, further, a muffler is arranged in the air duct of the exhaust system to prevent the fan noise from being transmitted to the outside of the anti-pirate cabin, thereby reducing the probability of being discovered by pirates.

[0020] According to the present invention, further, an air filter is provided at the air inlet to avoid the introduction of harmful substances and ensure the health of the refugees.

[0021] According to the present invention, further, the control system comprises a compressed air bottle connected to the ventilation structure through a compressed air pipe, the compressed air pipe is provided with a first two-position three-way valve located in the control station, a second two-position three-way valve located in the channel, and a stop valve;

[0022] The first two-position three-way valve is operated at the control station to control the on-off of the compressed air, so as to realize the remote control of the air inlet pneumatic damper and the air exhaust pneumatic damper;

[0023] The stop valve and the second two-position three-way valve arranged in the channel are used for the refugees to operate to close the stop valve and cut off the gas source in an emergency, so as to realize the safety and controllability of the ventilation system.

[0024] According to the present invention, further, an oxygen regeneration device is provided in the anti-pirate cabin, and sodium peroxide is sealed in the oxygen regeneration device. When there is a lack of oxygen, the sealed package is opened, and the sodium peroxide absorbs the carbon dioxide in the anti-pirate cabin and releases oxygen.

[0025] The beneficial effects of the present invention are as follows: the anti-pirate cabin ventilation system of the present invention forms a complete control system by combining the high-place air outlet setting, the pneumatic air damper two-position three-way valve control, the stop valve control, the internal manual operation and the oxygen regeneration system. Under normal circumstances, the system adjusts the ventilation through the pneumatic control air damper, and in emergency situations such as pirate attacks, the refugees can quickly turn off the pneumatic function through the stop valve, use the manual control air damper instead, and activate the oxygen regeneration system to ensure the air quality in the cabin and guarantee the living conditions. The problems of concealment and safety of the air vents, the contradiction between the regulatory requirements and the actual needs, and the lack of self-sufficiency in emergency situations in the prior art are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a schematic diagram of a ship anti-piracy cabin ventilation system.

[0027] In the accompanying drawings,

[0028] 1- Anti-piracy cabin; 2- Passageway; 3- Fan room; 4- Control station; 5- Anti-piracy door; 6- Covering; 7- Air inlet; 8- Air inlet pneumatic damper; 9- Air duct; 10- Exhaust outlet; 11- Exhaust pneumatic damper; 12- Exhaust fan; 13- Exhaust grille; 14- Compressed air bottle; 15- First two-position three-way valve; 16- Second two-position three-way valve; 17- Stop valve; 18- Compressed air pipe; 19- Oxygen regeneration device; 20- Deck. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0030] See also Figure 1 , which is a schematic diagram of a ship anti-pirate cabin ventilation system; a ship anti-pirate cabin ventilation system disclosed in an embodiment of the present application comprises an anti-pirate cabin 1, a passage 2 connected to the anti-pirate cabin 1, and a fan room 3 arranged on one side of the passage 2, the passage 2 is provided with an anti-pirate door 5 leading to the outside, and is also provided with a stairway leading to the anti-pirate cabin 1 and the fan room 3. A ventilation structure is provided in the fan room 3 to ensure that there is enough oxygen in the anti-pirate cabin 1, which is suitable for taking refuge.

[0031] The ventilation structure includes an air intake system and an exhaust system. The air intake system includes an air intake 7 arranged on the outer wall of the fan room 3, and the air intake 7 is connected to the air intake pneumatic damper 8 arranged in the fan room 3 through an air duct 9; the air intake 7 is at least 4.6 meters above the deck 20 below, and there is no need to set a wind and rainproof air outlet at this height, while ensuring that the air intake 7 is away from an easily accessible position. In order to reduce the possibility of the air intake 7 being discovered, a cover 6 is provided at the air intake 7; the cover 6 is a semi-enclosed cover structure fixed to the outer wall of the fan room 3, and the semi-enclosed structure can both realize air intake and play a role in shielding the air intake 7; preferably, the opening of the cover 6 faces downward, which is less likely to be discovered and has higher safety. An air filter (not shown in the figure) is provided at the air intake 7 to avoid the introduction of harmful substances and ensure the health of the refugees.

[0032] The exhaust system includes an exhaust port 10 arranged on the outer wall of the fan room 3. The exhaust port 10 is arranged opposite to the air inlet 7. The exhaust port 10 is connected to the exhaust fan 12 arranged in the fan room 3 through the air duct 9. The air duct 9 is provided with an exhaust pneumatic damper 11. One end of the air duct 9 is connected with an exhaust grille 13. The exhaust grille 13 is located in the anti-pirate cabin 1, which can well realize the gas circulation in the anti-pirate cabin 1. The exhaust port 10 is at least 4.6 meters above the deck 20 below. Similarly, in order to reduce the possibility of the exhaust port 10 being discovered, a cover 6 is also provided at the exhaust port 10. For ease of operation, the air inlet pneumatic damper 8 and the exhaust pneumatic damper 11 both have a cylinder and a manual operating lever. A muffler (not shown in the figure) is provided in the air duct of the exhaust system to prevent the fan noise from being transmitted to the outside of the anti-pirate cabin and reduce the probability of being discovered by pirates.

[0033] It also includes a control station 4, in which a control system for controlling the ventilation structure is arranged. The control system includes a compressed air bottle 14 connected to the ventilation structure through a compressed air pipe 18, and the compressed air pipe 18 is provided with a first two-position three-way valve 15 located in the control station 4, a second two-position three-way valve 16 located in the channel 2, and a stop valve 17. The first two-position three-way valve 15 is operated at the control station 4 to control the on and off of the compressed air, so as to realize the remote control of the air intake pneumatic damper 8 and the exhaust pneumatic damper 11; the stop valve 17 and the second two-position three-way valve 16 are arranged in the channel 2. In an emergency, the refugee can operate the stop valve 17 to cut off the air source, so as to prevent pirates from manipulating the air intake pneumatic damper 8 and the exhaust pneumatic damper 11 at the control station 4, so as to ensure the safety and controllability of the ventilation system; when the pneumatic function fails due to the closing of the stop valve 17, the residual air in the cylinder can be released through the second two-position three-way valve 16, and the air intake pneumatic damper 8 and the exhaust pneumatic damper 11 can be operated by the manual operating rod, so as to ensure that the refugee can control the switch of the air intake pneumatic damper 8 and the exhaust pneumatic damper 11 under any circumstances, so as to maintain their own safety. Among them, the two two-position three-way valves and the stop valve are electric valves, which can achieve rapid response through remote electric control operation. Specifically, a status indicator light or a display screen is arranged in the anti-pirate cabin to display the status of the damper and valve in real time, so as to enhance the transparency and controllability of the system.

[0034] An oxygen regeneration system is also provided in the anti-pirate cabin 1, which includes an oxygen regeneration device 19, which is used when external ventilation is limited and the air inlet pneumatic damper 8 and the air exhaust pneumatic damper 11 are closed, and the refugees open the seal of the device. The sodium peroxide medicine plate in the device can absorb the carbon dioxide in the anti-pirate cabin and release oxygen, supplying oxygen to the refugees and improving the survival rate. In order to increase the oxygen supply, multiple oxygen regeneration devices 19 can be provided.

[0035] In the embodiment of the present application, the exhaust fan 12 is a two-speed fan. It is in high speed gear during daily use to ensure the normal operation of the equipment in the cabin; it uses low speed gear when used as an anti-pirate cabin to ensure the amount of air required for the crew to breathe while reducing noise, and can also reduce the chance of being discovered by pirates.

[0036] The above is only a preferred embodiment of the present invention, and is not any formal or substantial limitation of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be regarded as the protection scope of the present invention. Any technician familiar with this profession, without departing from the spirit and scope of the present invention, can make some changes, modifications and equivalent changes made by using the technical content disclosed above, which are equivalent embodiments of the present invention; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A ship anti-piracy cabin ventilation system, wherein: include, Anti-piracy cabin; a passage, communicating with the anti-piracy cabin; A fan room is arranged on the other side of the passage; A ventilation structure is provided in the fan room for realizing air circulation in the anti-pirate cabin; and the ventilation opening of the ventilation structure is located at a high position in the fan room.

2. A ship anti-piracy cabin ventilation system as claimed in claim 1, wherein: A control station is also included for controlling the air flow interruption of the ventilation structure.

3. A ship anti-piracy cabin ventilation system as claimed in claim 1, wherein: The ventilation structure includes an air intake system; the air intake system includes an air inlet arranged on the outer wall of the fan room, and the air inlet is connected to an air intake pneumatic damper arranged in the fan room through an air duct.

4. A ship anti-piracy cabin ventilation system as claimed in claim 3, wherein: The ventilation structure also includes an exhaust system; the exhaust system includes an exhaust outlet arranged on the outer wall of the fan room, the exhaust outlet is connected to the exhaust fan arranged in the fan room through an air duct, the air duct is provided with an exhaust pneumatic damper, one end of the air duct is connected to an exhaust grille, and the exhaust grille is located in the anti-piracy cabin.

5. A ship anti-piracy cabin ventilation system as claimed in claim 4, wherein: The air inlet and the air outlet are at least 4.6 meters above the deck.

6. A ship anti-piracy cabin ventilation system as claimed in claim 4, wherein: The air inlet and the air outlet are provided with ventilated covers.

7. A ship anti-piracy cabin ventilation system as claimed in claim 4, wherein: A muffler is arranged in the air duct of the exhaust system.

8. A ship anti-piracy cabin ventilation system as claimed in claim 3, wherein: An air filter is arranged at the air inlet.

9. A ship anti-piracy cabin ventilation system as claimed in claim 2, wherein: The control system comprises a compressed air bottle connected to the ventilation structure through a compressed air pipe, the compressed air pipe is provided with a first two-position three-way valve located in the control station, a second two-position three-way valve located in the channel, and a stop valve; The first two-position three-way valve is operated at the control station to control the on-off of the compressed air, so as to realize the remote control of the air inlet pneumatic damper and the air exhaust pneumatic damper; The stop valve and the second two-position three-way valve arranged in the channel are used for the refugees to operate to close the stop valve and cut off the gas source in an emergency, so as to realize the safety and controllability of the ventilation system.

10. A ship anti-piracy cabin ventilation system as claimed in claim 1, wherein: The anti-pirate cabin is provided with an oxygen regeneration device, in which sodium peroxide is sealed. When there is a lack of oxygen, the sealed package is opened, and the sodium peroxide absorbs the carbon dioxide in the anti-pirate cabin and releases oxygen.

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