A ship anti-piracy cabin ventilation system

Abstract

This invention belongs to the field of marine ventilation technology and discloses a ventilation system for a ship's anti-piracy compartment, including an anti-piracy compartment; a passageway connected to the anti-piracy compartment; and a fan room located on the other side of the passageway. The fan room contains a ventilation structure for airflow circulation within the anti-piracy compartment; the ventilation openings of the ventilation structure are located at a high position within the fan room. This technical solution, by placing the ventilation structure at a high position, solves the problem that pirates can easily find, block, or damage the ventilation openings, thereby cutting off the oxygen supply to the crew seeking refuge and increasing their chances of survival.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of ship ventilation, and relates to a ship anti-pirate cabin ventilation system. BACKGROUND

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

[0003] However, the implementation of anti-pirate cabins is far from easy, especially in the design of ventilation systems. Ventilation systems are one of the lifelines of anti-pirate cabins, which not only need to ensure that there is enough fresh air in the cabin to avoid high carbon dioxide concentration or insufficient oxygen due to airtight environment, but also need to ensure the safety and concealment of the system to avoid becoming a way for pirates to invade. In addition, ship cabin ventilation systems also need to meet the requirements of relevant specifications.

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

[0005] Generally speaking, the inlet and outlet air openings of the cabin ventilation system on the ship are ventilation tubes or covered weatherproof louvers, and the ventilation tubes are directly arranged on the deck surface; the louvers are arranged on the bulkhead, and the height is about 2 meters from the deck. Most ships do not have special considerations for the inlet and outlet air openings of the anti-pirate cabin, and are still arranged in a conventional design at a location that is easy to access, which makes it easy for pirates to find and block or damage the ventilation openings, thereby cutting off the oxygen supply for the crew in distress. The inlet and outlet air openings of the anti-pirate cabin in patent application No. 202310847383.5 and the paper "Analysis of ventilation arrangement of liquid cargo ship anti-pirate cabin" are in the form of ventilation tubes arranged on the deck surface. In order to prevent the ventilation opening from being easily found, some safety cabins use a concealed design, such as patent application No. 202111215366.7, which uses an emergency inlet and outlet air opening design arranged under the freeboard deck. However, the air opening position of this design is below the freeboard, which can easily lead to water entering the cabin and threatening the safety of the ship. At the same time, due to the small size of the air opening, the ventilation efficiency is sacrificed, resulting in poor air quality in the cabin,

[0006] In view of the concealment problem of the ventilation opening, some designs use special designs, such as patent application No. 201510770412.8 and 202120003783.4. However, the ventilation openings in these designs cannot be closed from the outside of the ventilation place, which does not meet the ventilation specification requirement that the main inlet and outlet air openings of the ventilation system should be able to be closed from the outside of the ventilation place.

[0007] In addition, the existing technology does not consider the emergency situation of closing the inlet and outlet air openings, such as the situation where pirates create smoke or toxic gas to force the ventilation opening to be closed. There is no alternative solution to ensure the breathing of the crew in the anti-pirate cabin, and the crew may be in danger of suffocation. SUMMARY

[0008] The present application provides a ship anti-pirate cabin ventilation system to solve at least one of the above technical problems.

[0009] To achieve the above purpose, the technical solution of the present application provides a ship anti-pirate cabin ventilation system, which comprises,

[0010] an anti-pirate cabin;

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

[0012] a fan room arranged on 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 the ventilation opening of the ventilation structure is located at a high position of the fan room.

[0013] This technical solution arranges the ventilation structure at a high position, which solves the problem that pirates can easily find and block or damage the ventilation opening, thereby cutting off the oxygen supply for the crew in distress, and improves the survival probability of the crew.

[0014] According to the application, further, a control station is provided for controlling the air flow of the ventilation structure.

[0015] According to the application, further, the ventilation structure comprises an air inlet system; the air inlet system comprises an air inlet arranged on the outer wall of the fan room, and the air inlet is connected with an air inlet pneumatic damper arranged in the fan room through an air pipe.

[0016] According to the application, further, the ventilation structure further comprises an air outlet system; the air outlet system comprises an air outlet arranged on the outer wall of the fan room, and the air outlet is connected with an air outlet fan arranged in the fan room through an air pipe, and a sound damper is arranged on the air pipe, and one end of the air pipe is connected with an air outlet grille arranged in the anti-pirate cabin.

[0017] According to the application, further, the air inlet and the air outlet are arranged at a height of at least 4.6 meters from the deck.

[0018] According to the application, further, a ventilable cover is arranged 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 pirate damage.

[0019] According to the application, further, a sound damper is arranged in the air pipe of the air outlet system. The sound damper prevents the noise of the fan from being transmitted to the outside of the anti-pirate cabin, thereby reducing the probability of being discovered by pirates.

[0020] According to the application, further, an air filter is arranged at the air inlet. The air filter can prevent harmful substances from being introduced and ensure the health of the refuge personnel.

[0021] According to the application, further, the control system comprises a compressed air bottle connected with the ventilation structure through a compressed air pipe, a first two-position three-way valve arranged in the control station, a second two-position three-way valve arranged in the passage, and a stop valve.

[0022] The first two-position three-way valve arranged in the control station is operated to control the on-off of the compressed air, thereby realizing remote control of the air inlet pneumatic damper and the air outlet pneumatic damper.

[0023] The stop valve and the second two-position three-way valve arranged in the passage are used to close the stop valve to cut off the air source by the refuge personnel in an emergency, thereby realizing safe and controllable ventilation.

[0024] According to the application, further, an oxygen regeneration device is arranged in the anti-pirate cabin, and sodium peroxide is sealed in the oxygen regeneration device. When the oxygen is insufficient, the sealed package is opened, and the sodium peroxide adsorbs the carbon dioxide in the anti-pirate cabin and releases oxygen.

[0025] The beneficial effects of the present application are: the anti-pirate cabin ventilation system of the present application forms a complete control system by combining high air inlet setting, pneumatic air damper two-position three-way valve control, stop valve control, internal manual operation and oxygen regeneration system. Under normal circumstances, the system adjusts ventilation through pneumatic control damper, while in emergency situations such as pirate attacks, the refuge personnel can quickly close the pneumatic function through the stop valve, use manual control damper instead, and activate the oxygen regeneration system to ensure the air quality in the cabin and the survival conditions. The problems of the prior art, such as the contradiction between the concealment and safety of the air inlet, the standard requirements and actual needs, and the insufficient self-sufficiency in emergency situations, are solved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of a ship anti-pirate cabin ventilation system.

[0027] In the drawings,

[0028] 1-anti-pirate cabin; 2-passageway; 3-fan room; 4-control station; 5-anti-pirate door; 6-cover; 7-air inlet; 8-pneumatic air damper; 9-air pipe; 10-air outlet; 11-pneumatic air damper; 12-exhaust fan; 13-exhaust air 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 application will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and not to limit the scope of the present application. In addition, it should be understood that those skilled in the art can make various modifications or changes to the present application after reading the content taught by the present application, and these equivalent forms also fall within the scope defined by the claims attached hereto.

[0030] Please refer to Figure 1 It is a schematic diagram of a ship anti-pirate cabin ventilation system; the ship anti-pirate cabin ventilation system disclosed in the present application comprises an anti-pirate cabin 1, a passageway 2 communicating with the anti-pirate cabin 1 and a fan room 3 arranged on one side of the passageway 2, the passageway 2 is provided with an anti-pirate door 5 leading to the outside, and is also provided with a ladder leading to the anti-pirate cabin 1 and the fan room 3. The fan room 3 is provided with a ventilation structure for ensuring that there is enough oxygen in the anti-pirate cabin 1, which is suitable for refuge.

[0031] The ventilation structure comprises an air inlet system and an air outlet system. The air inlet system comprises an air inlet 7 arranged on the outer wall of the fan room 3, and the air inlet 7 is connected with an air inlet pneumatic damper 8 arranged in the fan room 3 through an air pipe 9. The air inlet 7 is at least 4.6 meters away from the lower deck 20, and the height does not need to be arranged with a weather-tight air inlet, and at the same time, the air inlet 7 is away from an easily accessible position. In order to reduce the possibility of being found, a cover 6 is arranged at the air inlet 7. The cover 6 is a semi-closed cover structure, which is fixed on the outer wall of the fan room 3. The semi-closed structure can realize air inlet and also shield the air inlet 7. Preferably, the opening of the cover 6 faces downward, which is less likely to be found and has higher safety. An air filter (not shown in the figure) is arranged at the air inlet 7 to avoid introducing harmful substances and ensure the health of the refuge personnel.

[0032] The air outlet system comprises an air outlet 10 arranged on the outer wall of the fan room 3, and the air outlet 10 is arranged opposite to the air inlet 7. The air outlet 10 is connected with an air outlet fan 12 arranged in the fan room 3 through the air pipe 9, and the air pipe 9 is provided with an air outlet pneumatic damper 11. One end of the air pipe 9 is connected with an air outlet grille 13, and the air outlet grille 13 is arranged in the anti-piracy cabin 1, so that the air in the anti-piracy cabin 1 can be well circulated. The air outlet 10 is at least 4.6 meters away from the lower deck 20. Similarly, in order to reduce the possibility of being found, a cover 6 is arranged at the air outlet 10. In order to facilitate operation, the air inlet pneumatic damper 8 and the air outlet pneumatic damper 11 both have a pneumatic cylinder and a manual operating rod. A silencer (not shown in the figure) is arranged in the air pipe of the air outlet system to prevent the noise of the fan from being transmitted to the outside of the anti-piracy cabin and reduce the probability of being found by pirates.

[0033] The control station 4 is further provided with a control system for controlling the ventilation structure, the control system comprising a compressed air bottle 14 in communication with the ventilation structure through a compressed air pipe 18, the compressed air pipe 18 being 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 passage 2, and a stop valve 17. The first two-position three-way valve 15 is operated in the control station 4 to control the on-off of the compressed air, thereby realizing remote control of the inlet air pneumatic damper 8 and the exhaust air pneumatic damper 11. The stop valve 17 and the second two-position three-way valve 16 provided in the passage 2 can be operated by the refuge personnel to close the stop valve 17 to cut off the air source in an emergency, prevent the pirates from operating the inlet air pneumatic damper 8 and the exhaust air pneumatic damper 11 in the control station 4, and ensure the safety and controllability of the ventilation system. When the pneumatic function is disabled due to the closing of the stop valve 17, the residual air in the air cylinder can be released through the second two-position three-way valve 16, and the inlet air pneumatic damper 8 and the exhaust air pneumatic damper 11 can be operated by a manual operating rod, thereby ensuring that the refuge personnel can control the opening and closing of the inlet air pneumatic damper 8 and the exhaust air pneumatic damper 11 in any case, and maintaining their own safety. The two two-position three-way valves and the stop valve are electric valves, which can be quickly responded by remote electric control. Specifically, a state indicating lamp or a display screen is arranged in the anti-pirate cabin to display the state of the damper and the valve in real time, thereby enhancing the transparency and controllability of the system.

[0034] The anti-pirate cabin 1 is also provided with an oxygen regeneration system, which comprises an oxygen regeneration device 19. When the external ventilation is limited and the inlet air pneumatic damper 8 and the exhaust air pneumatic damper 11 are closed, the refuge personnel can open the device seal, and the sodium peroxide tablet in the device can adsorb the carbon dioxide in the anti-pirate cabin and release oxygen, thereby supplying oxygen to the refuge personnel and improving the survival probability. In order to improve the oxygen supply amount, a plurality of oxygen regeneration devices 19 can be arranged.

[0035] In the embodiment of the present application, the exhaust fan 12 is a double-speed fan, which is used at high speed in daily use to ensure the normal operation of the equipment in the cabin, and is used at low speed when the cabin is used as an anti-pirate cabin, thereby ensuring the air amount required for the crew to breathe while reducing the noise and the probability of being discovered by pirates.

[0036] The above description is only a preferred embodiment of the present application, and is not intended to limit the present application in any form or in essence. It should be noted that those skilled in the art can make some improvements and supplements without departing from the present application, and these improvements and supplements should also be regarded as the protection scope of the present application. Any equivalent changes, modifications and evolutions made by those skilled in the art based on the disclosed technical content without departing from the spirit and scope of the present application should be regarded as equivalent embodiments of the present application; meanwhile, any equivalent changes, modifications and evolutions made by those skilled in the art based on the disclosed technical content without departing from the spirit and scope of the present application should be regarded as equivalent embodiments of the present application; meanwhile, any equivalent changes, modifications and evolutions made by those skilled in the art based on the disclosed technical content without departing from the spirit and scope of the present application should be regarded as equivalent embodiments of the present application.

Claims

1. A ventilation system for a ship's anti-piracy compartment, wherein, include, Anti-piracy cabin; The passageway connects to the anti-piracy compartment; The fan room is located on the other side of the passageway; The fan room is equipped with a ventilation structure to achieve airflow circulation within the anti-piracy compartment; the ventilation openings of the ventilation structure are located at a high point in the fan room. A control station is used to control the airflow of the ventilation structure; the control station is equipped with a control system for controlling the ventilation structure, the control system includes a compressed air cylinder connected to the ventilation structure through a compressed air pipe, and the compressed air pipe is equipped 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 shut-off valve. The first two-position three-way valve at the control station controls the on / off of compressed air, thereby enabling remote control of the air intake pneumatic damper and the air exhaust pneumatic damper. The shut-off valve and the second two-position three-way valve installed in the passage are used by evacuees to close the shut-off valve and cut off the gas supply in an emergency, so as to achieve safe and controllable ventilation system.

2. The anti-piracy cabin ventilation system for ships as described in claim 1, wherein, The ventilation structure includes an air intake system; the air intake system includes an air inlet installed on the outer wall of the fan room, and the air inlet is connected to an air intake pneumatic damper installed inside the fan room via an air duct.

3. A ship anti-piracy cabin ventilation system as described in claim 2, wherein, The ventilation structure also includes an exhaust system; the exhaust system includes an exhaust vent installed on the outer wall of the fan room, the exhaust vent being connected to an exhaust fan installed in the fan room via a duct, the duct being equipped with an exhaust pneumatic damper, and one end of the duct being connected to an exhaust grille located inside the anti-piracy compartment.

4. A ship anti-piracy cabin ventilation system as described in claim 3, wherein, The air inlet and outlet are at least 4.6 meters above the deck.

5. A ship anti-piracy cabin ventilation system as described in claim 4, wherein, The air inlet and outlet are equipped with ventilated covers.

6. A ship anti-piracy cabin ventilation system as described in claim 3, wherein, A silencer is installed in the duct of the exhaust system.

7. A ship anti-piracy cabin ventilation system as described in claim 2, wherein, An air filter is installed at the air inlet.

8. A ship anti-piracy cabin ventilation system as described in claim 1, wherein, The anti-piracy compartment is equipped with an oxygen regeneration device, which contains sealed sodium peroxide. When oxygen is scarce, the sealed package is opened, and the sodium peroxide absorbs carbon dioxide and releases oxygen from the anti-piracy compartment.

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