Roll-on-roll-off transport ship and fire extinguishing system thereof

Abstract

The invention provides a roll-on-roll-off transport ship and a fire extinguishing system thereof. The fire extinguishing system comprises: a storage device for storing a salt solution; the cooling equipment is used for cooling the salt solution; an inlet of the cooling equipment communicates with an outlet of the storage equipment, and an outlet of the cooling equipment communicates with an inlet of the storage equipment; the conveying pump is arranged between the outlet of the storage equipment and the inlet of the cooling equipment; the fire fighting pipeline communicates with an outlet of the conveying pump and is used for spraying a low-temperature salt solution outwards; a circulation control valve provided between the transfer pump and the cooling device; the circulation control valve is arranged at the downstream of the joint of the fire-fighting pipeline and the delivery pump; the controller is in communication connection with the circulation control valve so as to control opening and closing of the circulation control valve; when the circulation control valve is opened, the cooling equipment is communicated with the storage equipment to form a circulation path; when the circulation control valve is closed, the low-temperature salt solution can be sprayed outwards to a fire area through the fire fighting pipeline so as to be used for cooling and extinguishing fire.

Description

Technical Field

[0001] The present invention relates to the technical field of fire fighting, and in particular to a roll-on / roll-off transport ship and a fire fighting system thereof. Background Art

[0002] At present, the fire fighting methods of transport ships transporting electric vehicles include low-pressure carbon dioxide and water spray, etc. Among them, the characteristics of pure electric vehicle fires are rapid development of the fire, rapid and high temperature rise, the temperature can reach 1000 degrees Celsius in a short time, and during the development of the fire, there may be battery explosions, etc.

[0003] The low-pressure carbon dioxide fire extinguishing system consists of a carbon dioxide storage tank, a regional release valve, pipelines and nozzles. When a fire occurs in a certain area, the smoke detector transmits a signal to the ship's control system, and the control system issues an alarm. After receiving the alarm signal, the crew opens the regional release valve corresponding to the carbon dioxide control station, and the carbon dioxide in the storage tank is sprayed to the fire area through the regional release valve, pipelines and nozzles to extinguish the fire. The principle of carbon dioxide fire extinguishing is to isolate oxygen and thus inhibit combustion;

[0004] The water sprinkler system includes seawater pump groups, pipelines, area control valves and nozzles. Its working principle is similar to that of the carbon dioxide system. After the smoke and fire detector detects the signal, it is sent to the ship's control system. The control system starts the seawater pump group or the crew manually starts the seawater pump group. The seawater pump group draws water from the seabed gate or the seawater main pipe, transmits it to the pipeline, and releases it to the fire area through the release valve and nozzle, thereby playing a role in extinguishing the fire.

[0005] The above two fire-fighting methods both have the defect of not being able to cool down quickly when controlling electric vehicle fires. Summary of the invention

[0006] The object of the present invention is to provide a fire fighting system capable of rapidly cooling and extinguishing fires and a roll-on / roll-off transport ship having the fire fighting system, so as to solve the problems in the prior art.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solution: A fire fighting system for a roll-on / roll-off transport ship, comprising:

[0008] A storage device for storing a salt solution; the salt solution is a sodium chloride aqueous solution;

[0009] A cooling device, which is used to cool the salt solution; the inlet of the cooling device is connected to the outlet of the storage device, and the outlet of the cooling device is connected to the inlet of the storage device;

[0010] A delivery pump, which is arranged between the outlet of the storage device and the inlet of the cooling device;

[0011] A fire-fighting pipeline, which is connected to the outlet of the delivery pump and is used to spray low-temperature salt solution outward;

[0012] A circulation control valve is arranged between the delivery pump and the cooling device, and is used to control the connection between the delivery pump and the cooling device; the circulation control valve is arranged downstream of the connection between the fire protection pipeline and the delivery pump;

[0013] A controller, which is in communication with the circulation control valve to control the opening and closing of the circulation control valve;

[0014] When the circulation control valve is opened, the cooling device is connected to the storage device to form a circulation passage; when the circulation control valve is closed, the low-temperature salt solution can be sprayed outward to the fire area through the fire-fighting pipeline for cooling.

[0015] In one embodiment, the cooling device cools the saline solution to a temperature of -18°C to -22°C.

[0016] In one embodiment, the fire protection system includes a delivery control valve disposed on the fire protection pipeline, the delivery control valve is communicatively connected to the controller, and the controller is used to control the opening and closing of the delivery control valve;

[0017] One of the circulation control valve and the delivery control valve is opened, and the other is closed, or both are closed.

[0018] In one embodiment, there are two delivery pumps, which are connected in parallel and are both arranged between the outlet of the storage device and the inlet of the cooling device, with one delivery pump being used and the other being a standby.

[0019] In one embodiment, the fire protection system includes a liquid level detector arranged on the storage device to detect the liquid level in the storage device. The liquid level detector is communicatively connected to the controller. When a high liquid level limit and a low liquid level limit are set in the liquid level detector, the high liquid level limit is greater than the low liquid level limit. When the liquid level detected by the liquid level detector reaches the high liquid level limit, the liquid level detector sends an alarm signal. When the liquid level detected by the liquid level detector reaches the low liquid level limit, the liquid level detector sends an alarm signal.

[0020] In one embodiment, the storage device is provided with an injection pipeline for injecting saline solution, the injection pipeline is communicated with the interior of the storage device, an injection control valve is provided on the injection pipeline, the injection control valve is communicatively connected with the liquid level detector, when the liquid level detected by the liquid level detector reaches the low liquid level limit, the injection control valve is opened, when the liquid level detected by the liquid level detector reaches the high liquid level limit, the injection control valve is closed;

[0021] The fire fighting system comprises a liquid level meter arranged on the storage device, so as to detect and display the liquid level in the storage device.

[0022] In one embodiment, the fire protection system includes a temperature detector disposed on the storage device to detect the temperature in the storage device, the temperature detector is communicatively connected to the cooling device, and the cooling device performs cyclic cooling or stops cooling according to the temperature detected by the temperature detector;

[0023] The temperature detector is in communication connection with the delivery pump, and the delivery pump is started and stopped according to the temperature detected by the temperature detector;

[0024] The fire protection system includes a thermometer disposed on the storage device for detecting and displaying the temperature in the storage device.

[0025] In one embodiment, a vent valve is provided between the outlet of the cooling device and the inlet of the storage device;

[0026] A filter is provided between the delivery pump and the outlet of the storage device;

[0027] A manual valve is provided between the delivery pump and the outlet of the storage device, and a check valve is provided downstream of the outlet of the delivery pump;

[0028] The storage device is connected with a ventilation pipe;

[0029] The cooling device comprises a base and a cooling component arranged on the base.

[0030] The present invention also provides a roll-on / roll-off transport ship, comprising a hull and the fire-fighting system as described above arranged on the hull, wherein a cargo hold area is provided on the hull, and an outlet of the fire-fighting pipeline can be connected to the cargo hold area.

[0031] In one embodiment, the storage device is a cabin of the hull.

[0032] It can be seen from the above technical solution that the present invention has at least the following advantages and positive effects:

[0033] The fire fighting system of the present invention comprises a storage device, a cooling device, a delivery pump, a fire fighting pipeline, a circulation control valve and a controller. The cooling device cools the salt solution, and when it is needed, the cooled salt solution is sprayed to the fire area, and the cold energy of the salt solution is used to quickly reduce the temperature, thereby quickly reducing the temperature, suppressing the spread of combustion, and achieving fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the fire protection system in the present invention.

[0035] The following are the descriptions of the reference numerals:

[0036] 11. Storage equipment; 111. Ventilation pipe; 12. Delivery pump; 13. Cooling equipment; 141. Fire main; 142. Fire branch pipe; 143. Hose interface; 144. Delivery control valve; 15. Circulation control valve; 16. Air release valve; 17. Filter; 18. Manual valve; 19. Check valve; 20. Temperature detector; 21. Thermometer; 22. Liquid level detector; 23. Liquid level gauge; 24. Liquid injection pipeline; 25. Liquid injection control valve. DETAILED DESCRIPTION

[0037] Although the present invention can be easily embodied in different forms of embodiments, only some of the specific embodiments are shown in the drawings and will be described in detail in this specification. It should be understood that this description should be regarded as an exemplary illustration of the principles of the invention and is not intended to limit the invention to that described herein.

[0038] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0039] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of various elements of the present invention are not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the positions of these elements changes, the indications of these directions also change accordingly.

[0040] The present invention provides a roll-on / roll-off transport ship, which comprises a hull and a fire-fighting system arranged on the hull. The fire-fighting system can quickly reduce the temperature, thereby suppressing or controlling the spread of combustion and achieving fire extinguishing.

[0041] There is a cargo hold area on the hull, which can be used to store electric vehicles or other flammable goods.

[0042] The outlet of the fire-fighting pipeline of the fire-fighting system can be connected to the cargo hold area, and the cargo hold area can be cooled down after the fire, thereby achieving the effect of extinguishing the fire.

[0043] The fire protection system is described in detail below.

[0044] Figure 1 shows a schematic diagram of the fire protection system, see Figure 1 The fire fighting system includes a storage device 11, a cooling device 13, a delivery pump 12, a fire fighting pipeline, a circulation control valve 15 and a controller. The salt solution is cooled by the cooling device 13, and when it is needed, the cooled salt solution is sprayed to the fire area, thereby quickly reducing the temperature and suppressing the spread of combustion.

[0045] The storage device 11 is used to store a salt solution. The salt solution is a sodium chloride aqueous solution. The storage device 11 can be a storage tank placed on the hull. The storage device 11 can also be a cabin on the hull, the inner wall of which is treated to be corrosion-resistant so that the salt solution can be stored.

[0046] The storage device 11 is connected to a ventilation tube 111 for injecting salt solution or ventilation during circulation.

[0047] The storage device 11 is provided with an injection port for injecting a salt solution into the storage device 11 .

[0048] The cooling device 13 is used to cool the salt solution. Specifically, the cooling device 13 includes a base and a cooling assembly arranged on the base. That is, the cooling device 13 adopts a skid-mounted structure, so that the structure is compact, the floor space is small, and it is easy to install.

[0049] The inlet of the cooling device 13 is communicated with the outlet of the storage device 11, and the outlet of the cooling device 13 is communicated with the inlet of the storage device 11. That is, the cooling device 13 and the storage device 11 can form a circulation path, so that the salt solution in the storage device 11 can be cooled.

[0050] When the cooling device 13 cools the salt solution, the temperature of the salt solution is -18°C to -22°C. That is, the temperature of the salt solution in the fire fighting system is maintained between -18°C and -22°C by the cooling effect of the cooling device 13.

[0051] A vent valve 16 is provided between the outlet of the cooling device 13 and the inlet of the storage device 11. The vent valve 16 is used to release the gas in the pipeline to the outside, usually the salt solution is vented during the circulation cooling process in the circulation passage.

[0052] The delivery pump 12 is disposed between the outlet of the storage device 11 and the inlet of the cooling device 13. The delivery pump 12 is used to provide power to circulate the salt solution along the circulation path; or to output the salt solution to the outside to cool down and extinguish the fire.

[0053] Preferably, there are two delivery pumps 12. The two delivery pumps 12 are arranged in parallel, and are both arranged between the outlet of the storage device 11 and the inlet of the cooling device 13. The two delivery pumps 12 are used and the other is reserved, thereby ensuring that even if one of them fails, the entire fire fighting system can still perform fire fighting.

[0054] The circulation control valve 15 is arranged between the delivery pump 12 and the cooling device 13, and is used to control the on-off between the delivery pump 12 and the cooling device 13. The circulation control valve 15 is arranged downstream of the connection between the fire protection pipeline and the delivery pump 12.

[0055] Specifically, the storage device 11 is connected to the delivery pump 12 via a first pipeline, the delivery pump 12 is connected to the cooling device 13 via a second pipeline, and the cooling device 13 is connected to the storage device 11 via a third pipeline. The circulation control valve 15 is disposed on the second pipeline.

[0056] Furthermore, the first pipeline extends into the storage device 11. The first pipeline extends into the bottom of the storage device 11.

[0057] A manual valve is provided on each of the first pipeline, the second pipeline and the third pipeline. The manual valves are in an open state during normal operation. When a fault occurs, the manual valves can be manually closed to cut off the connection between the devices. The manual valve on the second pipeline is provided downstream of the circulation control valve 15.

[0058] The third pipeline is provided with an air release valve 16 and a manual valve. The manual valve on the third pipeline is arranged upstream of the air release valve 16.

[0059] The controller (not shown in the figure) is in communication connection with the circulation control valve 15 to control the opening and closing of the circulation control valve 15 .

[0060] A filter 17 is preferably provided between the delivery pump 12 and the outlet of the storage device 11 to filter the salt solution entering the delivery pump 12 and downstream.

[0061] A manual valve 18 is provided between the delivery pump 12 and the outlet of the storage device 11 . The manual valve 18 is provided upstream of the filter 17 .

[0062] A check valve 19 is provided downstream of the outlet of the delivery pump 12 .

[0063] The fire-fighting pipeline is communicated with the outlet of the delivery pump 12 for spraying low-temperature salt solution outward. One end of the fire-fighting pipeline is connected to the outlet of the delivery pump 12, and the other end extends to the cargo hold area on the hull.

[0064] In one embodiment, the fire protection pipeline includes a fire main pipe 141, a plurality of parallel fire branch pipes 142, and fire hydrants corresponding to the fire branch pipes 142. The fire hydrant is connected to the end of the fire branch pipe 142 away from the fire main pipe 141. The fire hydrant has a hose interface 143 and a hose detachably connected to the hose interface 143.

[0065] When the circulation control valve 15 is opened, the cooling device 13 is connected with the storage device 11 to form a circulation passage. When the circulation control valve 15 is closed, the low-temperature salt solution can be sprayed outward to the fire area through the fire fighting pipeline for cooling.

[0066] That is, during normal operation, the fire hydrant of the fire-fighting pipeline is closed, the circulation control valve 15 is opened, the salt solution circulates in the circulation passage, and the cooling device 13 cools the salt solution to keep the salt solution at a low temperature. When a fire occurs in the cargo hold area and needs to be extinguished, the controller controls the circulation control valve 15 to be closed, the hose is connected to the hose interface 143, and the fire hydrant is opened, so that the salt solution is sprayed outward to reduce the temperature, thereby suppressing the spread of the fire and finally extinguishing the fire.

[0067] Furthermore, the fire protection system includes a delivery control valve 144 disposed on the fire protection pipeline. The delivery control valve 144 is in communication connection with the controller, and the controller is used to control the opening and closing of the delivery control valve 144. One of the circulation control valve 15 and the delivery control valve 144 is opened, and the other is closed or both are closed.

[0068] When the salt solution needs to be cooled, the controller controls the circulation control valve 15 to open and the delivery control valve 144 to close. At this time, the salt solution circulates between the storage device 11 and the cooling device 13.

[0069] When the salt solution has dropped to the preset temperature, the controller controls the circulation control valve 15 to close. At this time, the circulation control valve 15 and the delivery control valve 144 are both in a closed state.

[0070] When it is necessary to spray low-temperature salt solution outward, the controller controls the circulation control valve 15 to close and controls the delivery control valve 144 to open. At this time, the low-temperature salt solution passes through the delivery pump 12 and is sprayed to the cargo hold area through the fire protection pipeline.

[0071] The fire protection system includes a temperature detector 20 disposed on the storage device 11 for detecting the temperature in the storage device 11. The temperature detector 20 is in communication connection with the cooling device 13, and the cooling device 13 performs cyclic cooling or stops cooling according to the temperature detected by the temperature detector 20.

[0072] The temperature detector 20 is in communication connection with the delivery pump 12 , and the delivery pump 12 is started and stopped according to the temperature detected by the temperature detector 20 .

[0073] The temperature detector 20 may be directly connected to the delivery pump 12 for communication, that is, the temperature detector 20 directly sends a temperature signal to the delivery pump 12 , and the delivery pump 12 is turned on or off according to the temperature signal.

[0074] Alternatively, the delivery pump 12 and the temperature detector 20 are connected to each other by a communication connection via a controller, that is, the controller controls the delivery pump 12 to be turned on or off according to the liquid level signal of the temperature detector 20 .

[0075] The start and stop of the delivery pump 12 is based on the following: a preset temperature value is set in the controller or the delivery pump, and when the detected real-time temperature is higher than the preset temperature value, the delivery pump 12 starts. When the detected real-time temperature is lower than the preset temperature value, the delivery pump 12 stops.

[0076] Furthermore, the controller or the delivery pump is provided with a first preset value and a second preset value, the first preset value is greater than the second preset value, when the real-time temperature is greater than the first preset value, the delivery pump 12 starts, and when the real-time temperature is less than the second preset value, the delivery pump 12 stops.

[0077] The fire protection system includes a thermometer 21 disposed on the storage device 11 for detecting and displaying the temperature in the storage device 11. The thermometer 21 is used for personnel to observe and read the temperature in the storage device 11.

[0078] The fire protection system includes a liquid level detector 22 disposed on the storage device 11, for detecting the liquid level in the storage device 11. The liquid level detector 22 is in communication with the controller, and a high liquid level limit and a low liquid level limit are provided in the liquid level detector 22, and the high liquid level limit is greater than the low liquid level limit. When the liquid level detected by the liquid level detector 22 reaches the high liquid level limit, the liquid level detector 22 sends an alarm signal. When the liquid level detected by the liquid level detector 22 reaches the low liquid level limit, the liquid level detector 22 sends an alarm signal.

[0079] That is, the salt solution can be added or stopped according to the alarm signal of the liquid level detector 22 .

[0080] The storage device 11 is provided with an injection pipeline 24 for injecting saline solution. The injection pipeline 24 is in communication with the interior of the storage device 11. Specifically, the injection pipeline 24 is in communication with the interior of the storage device 11 through an injection port. An injection control valve 25 is provided on the injection pipeline 24. The injection control valve 25 is communicatively connected with the liquid level detector 22. When the liquid level detected by the liquid level detector 22 reaches a low liquid level limit, the injection control valve 25 is opened. When the liquid level detected by the liquid level detector 22 reaches a high liquid level limit, the injection control valve 25 is closed.

[0081] The liquid injection control valve 25 can be directly connected to the liquid level detector 22 for communication, that is, the liquid injection control valve 25 directly receives the signal from the liquid level detector 22 and opens or closes according to the signal.

[0082] Alternatively, the injection control valve 25 and the liquid level detector 22 are connected to each other through a controller, that is, the controller controls the injection control valve 25 to be opened or closed according to the liquid level signal of the liquid level detector 22 .

[0083] The fire protection system includes a liquid level meter 23 disposed on the storage device 11 for detecting the liquid level in the storage device 11. The liquid level meter 23 is used for personnel to observe and read the liquid level in the storage device 11.

[0084] The working principle of this fire protection system is as follows:

[0085] During the cooling cycle, the circulation control valve 15 is opened, the delivery control valve 144 is closed, the delivery pump 12 is turned on, and the salt solution circulates in the storage device 11 and the cooling device 13 to cool the salt solution.

[0086] After the salt solution is cooled to a preset temperature, the circulation control valve 15 is closed and the delivery pump 12 is turned off.

[0087] When a fire occurs and needs to be extinguished, the delivery control valve 144 is opened, the delivery pump 12 is turned on, and the circulation control valve 15 is closed. The salt solution enters the fire protection pipeline from the storage device 11 through the delivery pump 12, and is finally sprayed outward and circulated in the cooling device 13 to cool the salt solution.

[0088] The three elements of combustion include combustibles, combustion-supporting materials, and ignition point. That is, combustion must occur under the condition that the temperature reaches the ignition point. If the temperature is below the ignition point, combustion cannot proceed. The present application sprays a low-temperature salt solution onto the surface of the burning object, and the cold energy of the salt solution quickly lowers the temperature, thereby suppressing or controlling the spread of combustion and ultimately extinguishing the fire.

[0089] The firefighting method of the present application of extinguishing fire by using cooled salt solution is particularly suitable for situations where the fire is relatively small.

[0090] The fire fighting system also includes a water sprinkler assembly, that is, the fire fighting mode of the cooled salt solution is used in combination with the fire fighting mode of the water sprinkler.

[0091] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A fire fighting system for a ro-ro transport ship, characterized in that: include: A storage device for storing a salt solution; the salt solution is a sodium chloride aqueous solution; A cooling device for cooling the salt solution; The inlet of the cooling device is communicated with the outlet of the storage device, and the outlet of the cooling device is communicated with the inlet of the storage device; A delivery pump, which is arranged between the outlet of the storage device and the inlet of the cooling device; A fire-fighting pipeline, which is connected to the outlet of the delivery pump and is used to spray low-temperature salt solution outward; A circulation control valve is arranged between the delivery pump and the cooling device, and is used to control the connection between the delivery pump and the cooling device; the circulation control valve is arranged downstream of the connection between the fire protection pipeline and the delivery pump; A controller, which is in communication with the circulation control valve to control the opening and closing of the circulation control valve; When the circulation control valve is opened, the cooling device is connected to the storage device to form a circulation passage; When the circulation control valve is closed, the low-temperature salt solution can be sprayed outwardly to the fire area through the fire-fighting pipeline to cool down and extinguish the fire.

2. The fire fighting system according to claim 1, characterized in that: The cooling device cools the salt solution to a temperature of -18°C to -22°C.

3. The fire fighting system according to claim 1, characterized in that: The fire protection system comprises a delivery control valve arranged on the fire protection pipeline, the delivery control valve is communicatively connected with the controller, and the controller is used to control the opening and closing of the delivery control valve; One of the circulation control valve and the delivery control valve is opened, and the other is closed, or both are closed.

4. The fire fighting system according to claim 1, characterized in that: There are two delivery pumps, which are connected in parallel and are both arranged between the outlet of the storage device and the inlet of the cooling device, with one delivery pump being used and the other being a standby.

5. The fire fighting system according to claim 1, characterized in that: The fire protection system includes a liquid level detector arranged on the storage device to detect the liquid level in the storage device. The liquid level detector is communicatively connected with the controller. When a high liquid level limit and a low liquid level limit are set in the liquid level detector, the high liquid level limit is greater than the low liquid level limit. When the liquid level detected by the liquid level detector reaches the high liquid level limit, the liquid level detector sends an alarm signal. When the liquid level detected by the liquid level detector reaches the low liquid level limit, the liquid level detector sends an alarm signal.

6. The fire fighting system according to claim 5, characterized in that: The storage device is provided with an injection pipeline for injecting saline solution, the injection pipeline is communicated with the interior of the storage device, the injection pipeline is provided with an injection control valve, the injection control valve is communicatively connected with the liquid level detector, when the liquid level detected by the liquid level detector reaches the low liquid level limit, the injection control valve is opened, when the liquid level detected by the liquid level detector reaches the high liquid level limit, the injection control valve is closed; The fire fighting system comprises a liquid level meter arranged on the storage device, so as to detect and display the liquid level in the storage device.

7. The fire fighting system according to claim 1, characterized in that: The fire protection system includes a temperature detector disposed on the storage device for detecting the temperature in the storage device, the temperature detector is communicatively connected with the cooling device, and the cooling device performs cyclic cooling or stops cooling according to the temperature detected by the temperature detector; The temperature detector is in communication connection with the delivery pump, and the delivery pump is started and stopped according to the temperature detected by the temperature detector; The fire protection system includes a thermometer disposed on the storage device for detecting and displaying the temperature in the storage device.

8. The fire fighting system according to claim 1, characterized in that: An air release valve is provided between the outlet of the cooling device and the inlet of the storage device; A filter is provided between the delivery pump and the outlet of the storage device; A manual valve is provided between the delivery pump and the outlet of the storage device, and a check valve is provided downstream of the outlet of the delivery pump; The storage device is connected with a ventilation pipe; The cooling device comprises a base and a cooling component arranged on the base.

9. A roll-on / roll-off transport ship, characterized in that: It comprises a hull and a fire fighting system as claimed in any one of claims 1 to 8 arranged on the hull, wherein a cargo hold area is provided on the hull, and an outlet of the fire fighting pipeline can be connected to the cargo hold area.

10. The ro-ro transport ship according to claim 9, characterized in that: The storage device is a compartment of the hull.

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