Fire hydrant arrangement to meet SOLAS safety return to port requirements

Abstract

The application discloses a fire hydrant arrangement method satisfying SOLAS safety return port requirements, which is applied to a passenger ship, the passenger ship is provided with a plurality of main vertical areas, the plurality of main vertical areas are isolated from each other, and the fire hydrant arrangement method comprises the following steps: S1, judging whether protection can be performed by connecting fire hydrants of adjacent main vertical areas not affected by an accident; S2, if yes, the fire hydrants of the adjacent main vertical areas not affected by the accident are utilized; and if no, a special fire hydrant is arranged in the main vertical area affected by the accident. Finally, one of the two schemes is selected according to specific conditions, so that the defect that the fire hydrant of the main vertical area affected by the fire accident of the passenger ship in the prior art cannot satisfy normal use requirements and lacks fire fighting capability is overcome.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of passenger ship hydrant arrangement method, in particular to a kind of hydrant arrangement method satisfying SOLAS safety return port requirement. BACKGROUND

[0002] Under the current international environment, with the increasing market demand of passenger ships, especially the globalization of large cruise ships, the passenger ship market is rapidly expanding. The SOLAS (International Convention for the Safety of Life at Sea) issued by the International Maritime Organization (IMO) has increasingly stringent requirements for ship safety, including the design of safety return port, which is difficult to have a unified standard due to its complexity and the characteristics of goal-oriented specifications. The arrangement of hydrants in the water fire-fighting system, which is related to fire safety, affects the overall fire safety of the ship. How to meet the implementation requirements of safety return port and achieve the design function with the minimum cost is the focus of research by all parties.

[0003] In the prior art, hydrants on large ships need to ensure that hydrants can be used in time in case of fire, and under the technical requirements of safety return port, the fire area can also be protected by hydrants. Passenger ships usually divide the ship into different main vertical zones with fire isolation capability. Once a fire occurs in one of the main vertical zones, isolation measures can be used to limit the fire to the main vertical zone where it occurred, without affecting other main vertical zones. Due to regulatory requirements, some areas affected by fire within the isolation zone can continue to use hydrants in the water fire-fighting system for protection. However, due to system design limitations, the hydrants within this area are isolated from the fire-fighting system when affected by fire, and cannot obtain water from the fire-fighting system to meet normal use requirements, lacking fire-fighting capability. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the defect that the hydrants in the main vertical zone affected by fire on the passenger ship in the prior art cannot meet the normal use requirements and lack fire-fighting capability, and to provide a hydrant arrangement method that satisfies the SOLAS safety return port requirement.

[0005] The present application solves the above technical problems by the following technical solutions:

[0006] A hydrant arrangement method that satisfies the SOLAS safety return port requirement, the hydrant arrangement method is applied to a passenger ship, the passenger ship is provided with a plurality of main vertical zones, and the plurality of main vertical zones are isolated from each other, characterized in that the hydrant arrangement method comprises the following steps:

[0007] S1, determining whether protection can be provided by connecting the hydrants of adjacent main vertical zones not affected by the accident;

[0008] S2, if possible, using the fire hydrant adjacent to the main vertical area not affected by the accident;

[0009] If not, a dedicated fire hydrant is set in the main vertical area affected by the accident.

[0010] In this scheme, first, by judging whether it can be protected by connecting the fire hydrant adjacent to the main vertical area not affected by the accident, two schemes can be obtained. One is to use the fire hydrant adjacent to the main vertical area not affected by the accident in the case of being able to do so. The other is to set a dedicated fire hydrant in the main vertical area affected by the accident in the case of being unable to do so. Finally, according to the specific situation, one of the best schemes is selected to overcome the defects that the fire hydrant of the main vertical area affected by the fire accident of the passenger ship in the prior art cannot meet the normal use requirements and lacks fire fighting capability.

[0011] Preferably, the step S1 comprises the following steps:

[0012] S0, at least two valve-closed isolation valves are arranged in the main vertical area affected by the accident.

[0013] Preferably, the passenger ship comprises a plurality of fire hoses, and the step of using the fire hydrant adjacent to the main vertical area not affected by the accident comprises the following steps:

[0014] A plurality of fire hoses are connected to the fire hydrant of the main vertical area not affected by the accident, respectively;

[0015] The fire hydrant adjacent to the main vertical area not affected by the accident is extended and communicated to the main vertical area affected by the accident in the isolation area through a plurality of fire hoses;

[0016] The main vertical area affected by the accident is subjected to fire water coverage.

[0017] In this scheme, a plurality of fire hoses are connected to the fire hydrant of the main vertical area not affected by the accident, respectively. Since the fire hydrant of the main vertical area not affected by the accident can be normally used and provides water source, after the fire hydrant is communicated to the fire hydrant, it is convenient to flow water along the fire hydrant to the fire hose and drain to the main vertical area affected by the accident in the isolation area. At the same time, a plurality of fire hoses can be used to protect the main vertical area affected by the accident, realizing full coverage of the area.

[0018] Preferably, the step of connecting a plurality of fire hoses to the fire hydrant of the main vertical area not affected by the accident comprises the following steps:

[0019] Two fire hoses are arranged;

[0020] Two said fire hoses are connected to the unaffected main vertical area, and the other ends of the two said fire hoses extend into the affected main vertical area.

[0021] In this scheme, two fire hoses are connected to the affected main vertical area and the unaffected main vertical area, which facilitates the introduction of water from the unaffected main vertical area to the affected main vertical area, and completes the fire protection.

[0022] Preferably, the cruise ship includes several accident-resistant pipes, and the accident-resistant pipes are connected to the dedicated fire hydrants in the unaffected main vertical area, including the following steps:

[0023] At least two isolation valves are provided, and the valves of the isolation valves are opened;

[0024] The accident-resistant pipes are connected to the two isolation valves with open valves;

[0025] Fire hydrants are provided inside the affected main vertical area;

[0026] The other end of the accident-resistant pipe is connected to the fire hydrant, and the fire hydrant is connected to the fire hoses connected to the unaffected main vertical area.

[0027] In this scheme, at least two isolation valves are additionally provided, and dedicated safe return fire hydrants are provided inside the unaffected part of the isolation main vertical area, and the accident-resistant pipes are connected to the fire hydrants in the unaffected area, and the fire hydrants are further connected to the fire hoses, so that the water source is transported from the fire hoses to the unaffected part of the isolation area for fire protection.

[0028] Preferably, the connection of the accident-resistant pipes to the two isolation valves with open valves includes the following steps:

[0029] The valves of the isolation valves are opened to allow water flow into the accident-resistant pipes.

[0030] In this scheme, the water flows out of the isolation valve and extends along the accident-resistant pipe by opening the valve.

[0031] Preferably, inside the affected main vertical area, the fire hydrants are provided correspondingly, and the other end of the accident-resistant pipe is connected to the fire hydrant, and the fire hydrant is connected to the fire hoses connected to the unaffected main vertical area, and the following steps are included:

[0032] Determine whether any fire hydrant is affected and cannot be used.

[0033] In this scheme, at least two isolation valves are installed simultaneously, and the available fire hydrant is selected through a judgment process.

[0034] Preferably, determining whether any fire hydrant is unusable due to an accident specifically includes the following steps:

[0035] If one of the fire hydrants fails to function, the other fire hydrant shall be used.

[0036] If one of the fire hydrants is usable, there is no need to use the other fire hydrant.

[0037] In this plan, at least two isolation valves are installed, one as the main one and the other as a backup. When one becomes unusable, the other is used to avoid the defect of being unable to perform fire fighting due to the inability to use one.

[0038] Preferably, the step of connecting the other end of the accident-resistant pipe to the fire hydrant, and connecting the fire hoses of several main vertical zones unaffected by accidents through the fire hydrant, specifically includes:

[0039] Water is introduced into the fire hydrant through the accident-resistant pipe and flows out through the fire hose.

[0040] In this solution, an emergency-resistant pipe is used because its structural characteristics allow it to adapt to the specific workshop environment. The emergency-resistant pipe is connected to an isolation valve, and water is introduced into the fire hydrant and flows out from the fire hose, extending to the closed isolation valve and another unusable fire hydrant to provide fire protection for the area.

[0041] Preferably, if this is not possible, installing dedicated fire hydrants in the main vertical zone affected by the accident further includes the following steps:

[0042] The fire hose is extended into the isolation valve where the valve is closed and into the isolation valve where the fire hydrant is unusable.

[0043] In this solution, by extending to the aforementioned areas, it is convenient to carry out fire protection within the isolation valves where the valves are closed and where fire hydrants cannot be used.

[0044] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0045] The positive progress effect of the present application is that: in the present scheme, firstly, whether the fire hydrant of the adjacent main vertical area not affected by the accident can be connected to protect is judged, two schemes can be obtained, one is to judge that the fire hydrant of the adjacent main vertical area not affected by the accident is used in the case of being able to, and the other is to judge that the special fire hydrant is arranged in the main vertical area affected by the accident in the case of being unable, and finally a best scheme is selected according to the specific situation, which overcomes the defects that the fire hydrant of the main vertical area affected by the fire accident of the passenger ship in the prior art cannot meet the normal use demand and lacks fire fighting ability. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is a connection schematic diagram of the fire hydrant arrangement method of the present application embodiment 1.

[0047] Figure 2 It is a connection schematic diagram of the fire hydrant arrangement method of the present application embodiment 2.

[0048] Figure 3 It is a flow chart of the fire hydrant arrangement method of the present application embodiments 1 and 2.

[0049] Figure 4 It is a flow chart of step S2 of the present application embodiment 1.

[0050] Figure 5 It is a flow chart of step S2 of the present application embodiment 2.

[0051] Explanation of reference signs:

[0052] Main fire fighting ring pipe 1

[0053] Valve-closed isolation valve 2

[0054] Fire fighting hose 3

[0055] Valve-opened isolation valve 4

[0056] Fire hydrant 5 of main vertical area not affected by accident

[0057] Fire hydrant 6 of main vertical area affected by accident

[0058] Accident-resistant pipe 7 DETAILED DESCRIPTION

[0059] The present application will be more clearly and completely explained by the following embodiments combined with the drawings, but the present application is not limited in the scope of the embodiments.

[0060] Embodiment 1

[0061] As Figure 1 and Figure 3As shown, Embodiment 1 of the present invention discloses a fire hydrant arrangement method that meets the requirements for safe return to port of SOLAS. The fire hydrant arrangement method is applied to passenger ships. Passenger ships are equipped with multiple main vertical zones, which are isolated from each other. The fire hydrant arrangement method includes the following steps: S1, determining whether protection can be achieved by connecting fire hydrants 5 in adjacent main vertical zones that are not affected by the accident; S2, if so, utilizing fire hydrants 5 in adjacent main vertical zones that are not affected by the accident.

[0062] Specifically, the passenger ship in this embodiment of the invention is a large passenger ship.

[0063] First, it is determined whether protection can be achieved by connecting to the fire hydrant 5 in the adjacent, unaffected main vertical zone. If so, the optimal solution is selected based on the specific circumstances, overcoming the shortcomings of existing passenger ship fire hydrants 6 in the main vertical zone affected by fire accidents, which cannot meet normal usage requirements and lack fire-fighting capabilities. Large passenger ships have complex structures and detailed cabin partitions, posing significant challenges to fire protection system design. Fire safety is a key focus of ship design; an economical, reliable, and safe design solution will have greater market competitiveness.

[0064] Before step S1, the following steps are included: S0, at least two isolation valves with valves closed are installed in the main vertical zone affected by the accident.

[0065] like Figure 4 As shown, the passenger ship includes several fire hoses 3. Protection can be achieved by connecting to fire hydrants 5 in adjacent unaffected main vertical areas. The specific steps for utilizing these fire hydrants 5 include: connecting several fire hoses 3 to the fire hydrants 5 in the unaffected main vertical areas; extending and connecting the fire hydrants 5 in the adjacent unaffected main vertical areas to the affected main vertical areas within the isolation zone using several fire hoses 3; and providing fire water coverage to the affected main vertical areas. Connecting several fire hoses 3 to the fire hydrants 5 in the unaffected main vertical areas ensures that the fire hydrants 5 are functional and provide a water source. Connecting the fire hoses 3 to the fire hydrants facilitates water flow along the hydrants to the fire hoses 3 and directs it to the affected main vertical areas within the isolation zone. Simultaneously, multiple fire hoses 3 can individually fire-fight the affected main vertical areas, achieving full coverage of the area.

[0066] The step of connecting several fire hoses 3 to the fire hydrants of the unaffected main vertical zone in the event of an accident comprises the following steps: two fire hoses 3 are provided; the two fire hoses 3 are connected to the unaffected main vertical zone 5, respectively, and the other ends of the two fire hoses 3 extend into the affected main vertical zone. The two fire hoses 3 are connected to the affected main vertical zone and the unaffected main vertical zone, respectively, so as to facilitate the introduction of water from the unaffected main vertical zone to the affected main vertical zone to complete the fire protection.

[0067] Embodiment 2

[0068] The repeated parts of Embodiment 2 and Embodiment 1 are not described again, and only the differences are expanded.

[0069] As shown in Figure 2 and Figure 3 , if protection cannot be achieved by connecting the fire hydrants 5 adjacent to the unaffected main vertical zone, a special fire hydrant 6 is provided in the affected main vertical zone. In the case where it cannot be achieved, a special fire hydrant 6 is provided in the affected main vertical zone, and finally a best solution is selected according to the specific situation to overcome the defect that the fire hydrant 6 of the affected main vertical zone of the passenger ship in the prior art cannot meet the normal use requirement and lacks fire protection capability.

[0070] As shown in Figure 5 , the passenger ship includes several accident-resistant pipes 7, and if protection cannot be achieved by connecting the fire hydrants 5 adjacent to the unaffected main vertical zone, a special fire hydrant 6 is provided in the affected main vertical zone, which comprises the following steps: at least two isolation valves 4 are provided, and the valves of the isolation valves 4 are opened; the accident-resistant pipes 7 are connected to the two isolation valves 4 with open valves; the fire hydrants 6 are provided in the interior of the affected main vertical zone; the other ends of the accident-resistant pipes 7 are connected to the fire hydrants 6, and the fire hydrants 6 are connected to the fire hoses 3 of several unaffected main vertical zones. By additionally providing at least two isolation valves 4, and providing a special safe return fire hydrant 5 in the interior of the unaffected place of the isolation main vertical zone, the fire hydrant 5 is connected to the fire hydrant 5 in the unaffected area through the accident-resistant pipe 7, and the fire hydrant is further connected to the fire hose 3, so as to transport the water source from the fire hose 3 to the unaffected place in the isolation zone for fire protection.

[0071] The step of connecting the accident-resistant pipe 7 to the two isolation valves 4 with open valves comprises the following steps: the valves of the isolation valves 4 are opened and used to flow water into the accident-resistant pipe 7. By opening the valve, water flows out of the isolation valve 4 and extends along the accident-resistant pipe 7.

[0072] In the main vertical zone affected by the accident, the fire hydrant 6 is arranged correspondingly, the other end of the accident-resistant pipe 7 is connected to the fire hydrant 6, and the fire hoses connected by the fire hydrant 6 in the several main vertical zones not affected by the accident have the following steps: judging whether any fire hydrant 6 cannot be used due to the accident. At the same time, at least two isolation valves 4 are arranged, and the usable fire hydrant 6 is selected through the judging process.

[0073] The judging whether any fire hydrant cannot be used due to the accident specifically includes the following steps: if one of the fire hydrants 6 cannot be used due to the accident, another fire hydrant 6 is used; if one of the fire hydrants 6 can be used, another fire hydrant 6 does not need to be used. At the same time, at least two isolation valves 4 are arranged, one as the main valve and the other as the standby valve, when one cannot be used, the other is used, so as to avoid the defect that the fire cannot be carried out due to the inability to use.

[0074] The other end of the accident-resistant pipe 7 is connected to the fire hydrant 6, and the fire hoses 3 connected by the fire hydrant 6 in the several main vertical zones not affected by the accident specifically include: the water flow is introduced into the fire hydrant 6 through the accident-resistant pipe 7, and flows out through the fire hose 3. The accident-resistant pipe 7 is used to introduce the water flow into the fire hydrant 6 and flow out from the fire hose 3 based on its structural characteristics, which can adapt to the specific workshop environment. The water flow is introduced into the fire hydrant 6 and flows out from the fire hose 3 through the accident-resistant pipe 7 connected to the isolation valve 4, extends to the isolation valve 2 with the valve closed and another fire hydrant 6 that cannot be used, and carries out the fire protection to the area where it is located.

[0075] If not, the dedicated fire hydrant 6 is arranged in the main vertical zone affected by the accident, and the fire hose 3 is extended to the isolation valve 2 with the valve closed and the isolation valve 4 (i.e. the isolation valve with the valve open) where the fire hydrant cannot be used. By extending to the above-mentioned area, the fire protection to the isolation valve 2 with the valve closed and the isolation valve 4 where the fire hydrant cannot be used is facilitated.

[0076] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A hydrant arrangement method satisfying SOLAS safety return port requirements, the hydrant arrangement method being applied to a passenger ship provided with a plurality of main vertical zones, the plurality of main vertical zones being isolated from each other, characterized in that, The hydrant arrangement method comprises the following steps: S1, judging whether protection can be performed by connecting the hydrant of the adjacent main vertical area not affected by the accident; S2, if yes, using the hydrant of the adjacent main vertical area not affected by the accident; if no, setting a special hydrant in the main vertical area affected by the accident; The step S1 comprises the following steps: S0, setting at least two valve-closed isolation valves in the main vertical area affected by the accident; The passenger ship comprises a plurality of accident-resistant pipes, and the step of setting a special hydrant in the main vertical area affected by the accident comprises the following steps: setting at least two isolation valves, and opening the valves of the isolation valves; connecting the accident-resistant pipes to the two isolation valves with open valves; correspondingly setting a hydrant in the main vertical area affected by the accident; connecting the other end of the accident-resistant pipes to the hydrant, and connecting a plurality of fire hoses connected to the main vertical areas not affected by the accident through the hydrant; The step of connecting the accident-resistant pipes to the two isolation valves with open valves comprises the following steps: opening the valves of the isolation valves and using them to flow water into the accident-resistant pipes; The step of connecting the other end of the accident-resistant pipes to the hydrant and connecting a plurality of fire hoses connected to the main vertical areas not affected by the accident through the hydrant comprises: introducing water into the hydrant through the accident-resistant pipes, and flowing out through the fire hoses.

2. A hydrant arrangement method to meet SOLAS safety return to port requirements as claimed in claim 1, characterised in that, The passenger ship comprises a plurality of fire hoses, and the step of using the hydrant of the adjacent main vertical area not affected by the accident comprises the following steps: connecting a plurality of the fire hoses to the hydrants of the main vertical areas not affected by the accident respectively; extending the hydrants in the adjacent main vertical areas not affected by the accident through a plurality of the fire hoses, and connecting them to the isolation area and the main vertical area affected by the accident; performing fire water coverage on the main vertical area affected by the accident.

3. A hydrant arrangement method to meet SOLAS safety return to port requirements as claimed in claim 2, characterised in that, The step of connecting a plurality of the fire hoses to the hydrants of the main vertical areas not affected by the accident respectively comprises the following steps: setting two of the fire hoses; respectively connecting the two fire hoses to the main vertical areas not affected by the accident, and extending the other ends of the two fire hoses to the main vertical area affected by the accident.

4. The hydrant arrangement method of satisfying the SOLAS safe return to port requirement according to claim 1, wherein, The step of correspondingly setting a hydrant in the main vertical area affected by the accident and the step of connecting the other end of the accident-resistant pipes to the hydrant and connecting a plurality of fire hoses connected to the main vertical areas not affected by the accident through the hydrant comprise the following steps: judging whether any hydrant is affected by the accident and cannot be used.

5. A hydrant arrangement method according to claim 4, wherein, The step of judging whether any hydrant is affected by the accident and cannot be used comprises the following steps: if one of the hydrants is affected by the accident and cannot be used, using another hydrant; if one of the hydrants can be used, not using another hydrant.

6. The hydrant arrangement method satisfying the SOLAS safe return port requirement of claim 1, wherein, The step of setting a special hydrant in the main vertical area affected by the accident if no further comprises the following steps: extending the fire hoses to the isolation valves with closed valves and the isolation valves in which the hydrants cannot be used.

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