Container ship fire water monitor system and fire extinguishing method thereof

Abstract

According to the container ship fire water monitor system and the fire extinguishing method thereof, the actual fire position is detected through the fire alarm detection module, the wind speed and direction are measured through the anemorumbometer, and the control module automatically judges the applicable fire water monitor capable of covering a fire source according to the actual fire position; the water yield and the angle adjustment value of the fire water monitor are calculated according to the position of the selected fire water monitor, the actual fire position, the wind speed and the wind direction, the fire water monitor is controlled in time to spray a sprayed water column to a fire source for fire extinguishment, the fire extinguishment timeliness and accuracy are improved, and the fire extinguishment time is shortened; meanwhile, the influence of external wind speed and wind direction can be counteracted, and personnel load is reduced; the fire water cannon system for the container ship is suitable for manned ships and also suitable for unmanned ships.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and particularly to a fire fighting water cannon system for a container ship and a fire extinguishing method thereof. Background Art

[0002] Container ships generally load containers on the main deck. Since various goods may be loaded in the containers, once a fire breaks out, the fire is likely to spread rapidly. Therefore, it is crucial to adopt effective fire fighting measures.

[0003] For the fire fighting of container ships, installing fixed water cannons is a commonly used method. Such water cannons can cover the containers on the entire main deck and spray mist or water columns at the fire source to achieve the purpose of extinguishing the fire. For medium and small-sized container ships, fixed water cannons for the front and rear are generally installed on the navigating deck; for large container ships, in addition to installing water cannons on the navigating deck, water cannons are also installed outside the engine room shed at the stern to achieve full-ship coverage.

[0004] After a fire breaks out at a certain container, the crew needs to first determine the water cannon that can cover the fire source, and then manually (locally or remotely) adjust the spraying angle of the water cannon to aim at the fire source. During the whole process, the crew needs to judge and operate quickly and accurately to minimize the losses caused by the fire. However, for fires at different positions, it is necessary to manually judge which water cannon's coverage area they are in, which is prone to misjudgment; when adjusting the spraying angle of the water cannon, it completely depends on the experience of the operator, and the time from the start of operation to aiming by different operators varies, which is not conducive to quickly extinguishing the fire; when the fire source is at a relatively far position, the aiming accuracy of the water cannon is poor; the wind speed and direction will also affect the aiming of the water cannon. Summary of the Invention

[0005] In view of the fire fighting defects of container ships in the prior art, the present application provides a fire fighting water cannon system for a container ship and a fire extinguishing method thereof. The fire fighting water cannon system for the container ship detects the actual fire position through a fire alarm detection module, measures the magnitude and direction of the wind speed through an anemometer and wind vane, and the control module automatically judges the applicable fire fighting water cannon that can cover the fire source according to the actual fire position, and calculates the water output and angle adjustment value of the fire fighting water cannon based on the position of the selected fire fighting water cannon, the actual fire position, and the magnitude and direction of the wind speed, and timely controls the fire fighting water cannon to spray the ejected water column to the fire source to extinguish the fire, improving the timeliness and accuracy of fire extinguishing; at the same time, it can eliminate the interference of the external wind speed and direction and achieve rapid fire extinguishing.

[0006] An embodiment of the present application provides a fire fighting water cannon system for a container ship, including:

[0007] A plurality of fire fighting water cannons, which are respectively arranged on the engine room shed and the superstructure;

[0008] Remote control valves, one remote control valve is provided for each of the fire water cannons, and the remote control valve is used to control the opening and closing of the fire water cannon;

[0009] Supply pumps, which are connected to a plurality of the fire water cannons through fire hoses;

[0010] Fire alarm detection module, which is used to detect the actual fire location;

[0011] Anemometer and wind vane, which are used to measure the magnitude and direction of the wind speed;

[0012] Control module, the control module selects the fire water cannons that need to be opened according to the actual fire location sent by the fire alarm detection module received and the fire extinguishing ranges covered by each of the fire water cannons; calculates the water output and angle adjustment value of the fire water cannon according to the positions of the selected fire water cannons, the actual fire location, and the measured magnitude and direction of the wind speed; sends the angle adjustment value to the power actuator of the selected fire water cannon to adjust the angle of the fire water cannon; sends the water output to the supply pump to control the water output of the fire water cannon.

[0013] As an implementation manner, a first booster pump is arranged below the engine room shed, and a second booster pump is arranged below the superstructure;

[0014] The first booster pump is connected to all the fire water cannons arranged in the engine room shed through a fire hose;

[0015] The second booster pump is connected to all the fire water cannons arranged on the superstructure through a fire hose.

[0016] As an implementation manner, the first booster pump and the second booster pump are connected to the supply pump through a fire hose.

[0017] As an implementation manner, the engine room shed is provided with a first fire water cannon and a second fire water cannon, the muzzle outlet of the first fire water cannon faces the stern direction, and the muzzle outlet of the second fire water cannon faces the bow direction;

[0018] The superstructure is provided with a third fire water cannon and a fourth fire water cannon, the muzzle outlet of the third fire water cannon faces the stern direction, and the muzzle outlet of the fourth fire water cannon faces the bow direction.

[0019] As an implementation manner, the anemometer and wind vane are arranged above the superstructure.

[0020] As an implementation manner, the actual fire point location detected by the fire alarm detection module is the three-dimensional coordinate position arranged corresponding to the tank position;

[0021] The three-dimensional coordinate position is located in a rectangular coordinate system. The origin of the rectangular coordinate system is located at the position where the fire fighting water cannon to be activated is located. The x-axis of the rectangular coordinate system points towards the bow of the ship, the y-axis points towards the port side, and the z-axis is vertically directed below the water surface.

[0022] As an implementation manner, the power actuator is a hydraulic actuator or an electric actuator.

[0023] As an implementation manner, the water supply pump includes a frequency converter, and the frequency converter adjusts the water output of the fire fighting water cannon.

[0024] Another embodiment of the present application provides a fire extinguishing method for a container ship fire fighting water cannon system, including the following steps:

[0025] Based on the actual fire location detected by the fire alarm detection module and the fire extinguishing range covered by the fire fighting water cannons arranged in the engine room shed and the superstructure, select the fire fighting water cannon to be activated;

[0026] Based on the position of the selected fire fighting water cannon to be activated, the actual fire point position, and the wind speed magnitude and direction measured by the received anemometer and wind vane, calculate the water output and angle adjustment value of the fire fighting water cannon;

[0027] Send the angle adjustment value to the power actuator of the selected fire fighting water cannon to be activated to adjust the angle of the fire fighting water cannon; send the water output to the supply pump, and control the water output of the fire fighting water cannon through the supply pump; and sequentially start the remote control valve, supply pump, and booster pump that control the fire fighting water cannon.

[0028] As an implementation manner, after fire extinguishing, it further includes the steps of closing the booster pump, the supply pump, and the remote control valve.

[0029] As described above, the container ship fire fighting water cannon system and its fire extinguishing method provided by the present application have the following beneficial effects:

[0030] The container ship fire fighting water cannon system of the present application detects the actual fire location through the fire alarm detection module, measures the wind speed magnitude and direction by the anemometer and wind vane, the control module automatically judges the applicable fire fighting water cannon that can cover the fire source according to the actual fire location, and calculates the water output and angle adjustment value of the fire fighting water cannon based on the position of the selected fire fighting water cannon, the actual fire location, and the wind speed magnitude and direction, and timely controls the fire fighting water cannon to spray the water column onto the fire source for fire extinguishing, improving the timeliness and accuracy of fire extinguishing, shortening the fire extinguishing time; at the same time, it can offset the influence of external wind speed and direction, reduce the personnel load; and is also applicable to fire extinguishing of unmanned ships.

[0031] The fire extinguishing method of the fire fighting water cannon system of the container ship of the present application is convenient to operate, improves the accuracy and timeliness of fire extinguishing, shortens the fire extinguishing time, can offset the influence of external wind direction and wind speed at the same time, reduces the load of operators, and is applicable to manned ships and unmanned ships. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It shows a schematic structural diagram of the fire fighting water cannon system of the container ship according to an embodiment of the present invention.

[0033] Figure 2 It shows a schematic diagram of the jet force of the fire fighting water cannon according to an embodiment of the present invention.

[0034] Figure 3 It shows a schematic diagram of the velocity decomposition at the nozzle outlet of the fire fighting water cannon according to an embodiment of the present invention.

[0035] DESCRIPTION OF REFERENCE NUMERALS

[0036] 1, container ship; 2, superstructure; 3, engine room shed; 4, fire fighting water cannon; 5, remote control valve; 6, control module; 7, fire alarm detection module; 8, supply pump; 9, fire fighting water pipe; 11, container; 21, wind speed and direction indicator; 40, water column; 41, first fire fighting water cannon; 42, second fire fighting water cannon; 43, third fire fighting water cannon; 44, fourth fire fighting water cannon; 51, first remote control valve; 52, second remote control valve; 53, third remote control valve; 54, fourth remote control valve; 110, first booster pump; 111, ignition point; 120, second booster pump. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The following specific examples illustrate the embodiments of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0038] For a container ship loaded with containers, when a fire breaks out in a certain container, the crew first needs to determine the position of the fire fighting water cannon that can cover the fire source. Secondly, the crew manually adjusts the nozzle outlet of the fire fighting water cannon in both the horizontal and vertical directions to adjust the spraying angle of the fire fighting water cannon and aim it at the fire source. Since the position of the fire source is not fixed, it is easy to make misjudgments when manually determining which fire fighting water cannon's coverage area the fire source is in. When adjusting different spraying angles, it completely depends on the experience of the operator. The time it takes for different operators to start operating the fire fighting water cannon until it aims at the fire source varies, which is not conducive to quickly and effectively extinguishing the fire. When the position of the fire source is far away, the accuracy of the operator adjusting the fire fighting water cannon to aim at the fire source is poor. The wind speed and direction outside will also affect the fire fighting water cannon aiming at the fire source.

[0039] In view of the above defects, an embodiment of the present application provides a fire fighting water cannon system for a container ship and its fire extinguishing method.

[0040] Please refer to Figures 1 to 3 . It should be noted that the illustrations provided in this embodiment only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the illustrations, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0041] This embodiment provides a fire fighting water cannon system for a container ship, as Figure 1As shown in the figure, the fire water monitor system of the container ship is used on the container ship 1. Multiple containers 11 are loaded on the container ship 1, and the container ship 1 includes a superstructure 2 and an engine room shed 3. The fire water monitor system of the container ship includes multiple fire water monitors 4, multiple remote control valves 5, a supply pump 8, a fire alarm detection module 7, an anemometer and wind vane 21, and a control module 6. Among them, fire water monitors 4 are respectively arranged on the engine room shed 3 and the superstructure 2. Each fire water monitor 4 is provided with a remote control valve 5, and the remote control valve 5 is used to control the opening and closing of the fire water monitor 4. The supply pump 8 is communicated with each fire water monitor 4 through a fire water pipe 9. The fire alarm detection module 7 is used to detect the actual fire location and send the detected actual fire location to the control module 6. The anemometer and wind vane 21 is used to measure the magnitude and direction of the wind speed and send the measured magnitude and direction of the wind speed to the control module 6. First, the control module 6 selects the fire water monitors 4 that need to be opened according to the received actual fire location and the fire extinguishing ranges covered by the respective fire water monitors 4, and sends an opening signal to the remote control valve 5 that controls the corresponding fire water monitor 4. Secondly, the control module 6 calculates the water discharge and angle adjustment value of the fire water monitor 4 according to the position of the selected fire water monitor 4, the actual fire location, and the measured magnitude and direction of the wind speed. Then, the control module 6 sends the calculated angle adjustment value to the power actuator of the selected fire water monitor 4 that needs to be opened, and the power actuator is used to adjust the angle of the nozzle outlet of the fire water monitor 4. Finally, the control module 6 sends the calculated water discharge to the supply pump 8, and the supply pump 8 is used to control the water discharge of the fire water monitor 4.

[0042] In the fire water monitor system of the container ship provided in this embodiment, by setting the fire alarm detection module 7, the anemometer and wind vane 21, and the control module 6, the fire alarm detection module 7 is used to detect the actual fire location, the anemometer and wind vane 21 is used to measure the magnitude and direction of the wind speed, and the control module 6 automatically determines the applicable fire water monitors 4 that can cover the fire source according to the actual fire location, and calculates the water discharge and angle adjustment value of the fire water monitor 4 according to the position of the selected fire water monitor 4, the actual fire location, and the magnitude and direction of the wind speed, and timely controls the fire water monitor 4 to spray the water column 40 to the fire source for fire extinguishing, improving the timeliness and accuracy of fire extinguishing and shortening the fire extinguishing time; at the same time, it can offset the influence of the external wind speed and direction and reduce the personnel load; the fire water monitor system of the container ship is applicable to both manned and unmanned ships for fire extinguishing.

[0043] In an alternative embodiment, as Figure 1As shown in the figure, a first booster pump 110 is arranged below the engine room shed 3, and a second booster pump 120 is arranged below the superstructure 2. The first booster pump 110 is connected to all the fire water cannons 4 arranged in the engine room shed 3 through a fire water pipe 9; the second booster pump 120 is connected to all the fire water cannons 4 arranged on the superstructure 2 through a fire water pipe 9. The first booster pump 110 is used to boost the pressure of the fire water cannons 4 arranged in the engine room shed 3; the second booster pump 120 is used to boost the pressure of the fire water cannons 4 arranged on the superstructure 2.

[0044] In an alternative embodiment, as Figure 1 shown in the figure, the first booster pump 110 and the second booster pump 120 are connected to the supply pump 8 through a fire water pipe 9. The control module 6 collects and transmits information with the first booster pump 110, the second booster pump 120, the supply pump 8, the wind speed and direction sensor 21 and the remote control valve 5, so as to control the above components to adjust parameters.

[0045] In an alternative embodiment, as Figure 1 shown in the figure, there are four fire water cannons 4 in the fire water cannon system of this container ship, namely the first fire water cannon 41, the second fire water cannon 42, the third fire water cannon 43 and the fourth fire water cannon 44; the first fire water cannon 41 and the second fire water cannon 42 are arranged in the engine room shed 3, the muzzle outlet of the first fire water cannon 41 faces the stern direction, and the muzzle outlet of the second fire water cannon 42 faces the bow direction; the third fire water cannon 43 and the fourth fire water cannon 44 are arranged on the superstructure 2, the muzzle outlet of the third fire water cannon 43 faces the stern direction, and the muzzle outlet of the fourth fire water cannon 44 faces the bow direction. Each fire water cannon 4 in the fire water cannon system of this container ship has a fixed position. Therefore, the coordinate values of each fire water cannon 4 on the ship are fixed, and each fire water cannon 4 is responsible for extinguishing fires in the corresponding fire area. For example, the first fire water cannon 41 is responsible for extinguishing fires in the area between the engine room shed 3 and the stern, and the second fire water cannon 42 and the third fire water cannon 43 are responsible for extinguishing fires in the area between the engine room shed 3 and the superstructure 2, and the fourth fire water cannon 44 is responsible for extinguishing fires in the area between the superstructure 2 and the bow.

[0046] In an alternative embodiment, the wind speed and direction sensor 21 is arranged above the superstructure 2.

[0047] In an alternative embodiment, as Figure 1As shown in the figure, each container 11 loaded on the container ship 1 has a fixed three-dimensional coordinate position (bay number / row number / tier number). When a certain container 11 catches fire, the actual fire point position detected by the fire detection module 7 is the three-dimensional coordinate position (such as B1 / R1 / T1). The three-dimensional coordinate position is located in a rectangular coordinate system, and the origin of the rectangular coordinate system is located at the position where the fire fighting water cannon 4 needs to be opened. The x-axis points to the bow of the ship, the y-axis points to the port side, and the z-axis is perpendicular to the water surface below; the fire detection module 7 transmits the actual fire point position information to the control module 6.

[0048] In an alternative embodiment, the power actuator of the fire fighting water cannon 4 can be a hydraulic actuator or an electric actuator. The power actuator of the fire fighting water cannon 4 can control the spray angle of the muzzle outlet of the fire fighting water cannon 4 in the horizontal and vertical directions. The hydraulic actuator usually consists of a hydraulic cylinder and a hydraulic motor; the electric actuator is an actuator driven by an electric motor, and its output torque is transmitted to the controlled object through transmission devices such as a speed reducer and a coupling to achieve precise control of it.

[0049] In an alternative embodiment, the supply pump 8 includes a frequency converter, and the frequency converter automatically adjusts the water output of the fire fighting water cannon 4.

[0050] This embodiment also provides a fire extinguishing method for a container ship fire fighting water cannon system, including the following steps:

[0051] S1. The control module 6 selects the fire fighting water cannon 4 to be opened according to the actual fire position detected by the fire detection module 7 and the fire extinguishing range covered by the fire fighting water cannons 4 provided on the engine room shed 3 and the superstructure 2.

[0052] S2. The control module 6 calculates the water output and angle adjustment value of the fire fighting water cannon 4 according to the position of the selected fire fighting water cannon 4 to be opened, the actual fire point position, and the wind speed and direction measured by the anemometer 21 received.

[0053] S3. The control module 6 sends the calculated angle adjustment value to the power actuator of the selected fire fighting water cannon 4 to be opened, and the power actuator adjusts the angle of the fire fighting water cannon 4; the control module 6 sends the calculated water output to the supply pump 8, and the supply pump 8 controls the water output of the fire fighting water cannon 4.

[0054] S4. The control module 6 sequentially starts the remote control valve 5, the supply pump 8, and the booster pump for controlling the fire fighting water cannon 4.

[0055] In an alternative embodiment, in step S1, there are four fire fighting water cannons 4 in the container ship fire fighting water cannon system, namely the first fire fighting water cannon 41, the second fire fighting water cannon 42, the third fire fighting water cannon 43 and the fourth fire fighting water cannon 44. The first fire fighting water cannon 41 and the second fire fighting water cannon 42 are arranged on the engine room shed 3. The muzzle outlet of the first fire fighting water cannon 41 faces the stern direction, and the muzzle outlet of the second fire fighting water cannon 42 faces the bow direction. The third fire fighting water cannon 43 and the fourth fire fighting water cannon 44 are arranged on the superstructure 2. The muzzle outlet of the third fire fighting water cannon 43 faces the stern direction, and the muzzle outlet of the fourth fire fighting water cannon 44 faces the bow direction. Each fire fighting water cannon 4 in the container ship fire fighting water cannon system has a fixed position. Therefore, the coordinate values of each fire fighting water cannon 4 on the ship are fixed, and each fire fighting water cannon 4 is responsible for extinguishing fires in the corresponding fire fighting area. For example, the first fire fighting water cannon 41 is responsible for extinguishing fires in the area between the engine room shed 3 and the stern, the second fire fighting water cannon 42 and the third fire fighting water cannon 43 are responsible for extinguishing fires in the area between the engine room shed 3 and the superstructure 2, and the fourth fire fighting water cannon 44 is responsible for extinguishing fires in the area between the superstructure 2 and the bow.

[0056] Meanwhile, each container 11 loaded on the container ship 1 has a fixed three-dimensional coordinate position (bay number / row number / tier number). The three-dimensional coordinate position is located in a rectangular coordinate system, and the origin of the rectangular coordinate system is located at the position of the fire fighting water cannon 4 that needs to be activated. The x-axis points to the bow of the ship, the y-axis points to the port side, and the z-axis points vertically downward below the water surface. For example, as Figure 1 shown, when a fire breaks out at a certain container 11, which is the fire point 111, the actual fire point position detected by the fire alarm detection module 7 is the three-dimensional coordinate position (such as B1 / R1 / T1) in the rectangular coordinate system, and the detected actual fire point position information is transmitted to the control module 6. The control module 6 selects the fire fighting water cannon 4 that needs to be activated according to the fire extinguishing range that each fire fighting water cannon 4 can cover.

[0057] In an alternative embodiment, the anemometer and wind vane 21 collects the wind speed magnitude and direction, and transmits the collected wind speed magnitude and direction to the control module 6. The following analyzes how the control module 6 calculates the water output and angle adjustment value of the fire fighting water cannon 4 based on the position of the selected fire fighting water cannon 4 to be activated, the actual fire point position, and the received wind speed magnitude and direction:

[0058] 1. Fire fighting water cannon jet motion equation

[0059] To facilitate the analysis of the jet motion of the fire fighting water cannon 4 on the ship, a right-handed Cartesian rectangular coordinate system o-xyz is established. Among them, the selected fire fighting water cannon 4 to be activated is located at the origin (0, 0, 0) of the rectangular coordinate system, the fire point coordinates are (B1, R1, T1), the x-axis of the rectangular coordinate system points to the bow of the ship, the y-axis points to the port side, and the z-axis points vertically downward below the water surface. As Figure 2As shown, the main forces acting on the jet of the fire water monitor 4 during its movement in three-dimensional space are gravity and air resistance The velocity of the water micro-mass Displacement and air resistance The vector relationship between them is as shown in Equations (1) and (2):

[0060]

[0061]

[0062] In Equations (1) and (2): m is the mass of the water micro-mass, and g is the acceleration due to gravity; Using to represent the unit vectors in the x, y, and z directions respectively, the velocity of the water micro-mass can be expressed as shown in Equation (3):

[0063]

[0064] Assume that the wind speed is encountered As shown in Equation (4):

[0065]

[0066] The relative velocity of the jet and the air is as shown in Equation (5):

[0067]

[0068] The expression for the air resistance of the jet is as shown in Equation (6):

[0069] F = kV 2 (1 + e bS ) (6)

[0070] In Equation (6): S is the length of the jet arc, and both k and b are coefficients. Among them, for the direct-current fire water monitor, the value of b is 0.01; for the flow-guiding fire water monitor, the value of b is 0.08.

[0071] Air resistance The components in the x, y, and z directions are respectively as shown in Equations (7), (8), and (9):

[0072]

[0073]

[0074]

[0075] From equations (1) and (2), the three-dimensional kinematic differential equation system of the jet micro-group as shown in equation (10) can be obtained:

[0076]

[0077]

[0078]

[0079]

[0080]

[0081]

[0082] In equation (10), the calculation formula of the coefficient k / m is as shown in equation (11):

[0083]

[0084] In equation (11): ρ a is the density of water; ρ w is the density of air; d is the diameter of the water micro-group, which is assumed to be equal to the diameter of the nozzle outlet of the fire water monitor 4; C d is a constant. According to the jet velocity of the water micro-group and the nozzle outlet of the fire water monitor 4, the Reynolds number R e of the water micro-group is greater than 1000, then the value of C d can be taken as 0.45.

[0085] 2. Initial conditions

[0086] When the water flows out from the nozzle outlet of the fire water monitor 4 and enters the air, the pressure energy is converted into kinetic energy. According to Bernoulli's equation, equation (12) can be obtained:

[0087]

[0088] In equation (12): V1 and V2 are the flow velocities at the base and the nozzle outlet of the fire water monitor 4 respectively, and P is the gauge pressure at the base of the fire water monitor 4; the flow velocity V1 at the base of the fire water monitor 4, the flow rate Q and the flow path diameter d1 satisfy equation (13):

[0089]

[0090] Therefore, equation (14) is obtained:

[0091]

[0092] As Figure 3As shown, the components of the flow velocity at the nozzle outlet of the fire water monitor 4 in the x, y, and z directions are expressed by Equation (15) in terms of the angle β between the available fire water monitor 4 and the ship's bow direction and the angle θ of the levelness:

[0093]

[0094] 3. Definite solution conditions

[0095] To achieve the purpose of fire extinguishing, the water column 40 ejected by the fire water monitor 4 needs to reach the fire point position (B1, R1, T1) at a certain moment t1, as shown in Equation (16):

[0096]

[0097]

[0098]

[0099] 4. Determination of the angle and flow rate of the fire water monitor

[0100] After the flow rate Q, angles β and θ of the fire water monitor 4 are given, the flow velocity at the nozzle outlet of the fire water monitor 4 can be obtained according to the calculation of the above initial conditions, and then the fourth-order Runge-Kutta method is used to solve the motion equations to obtain the jet motion trajectory; whether the given flow rate and angles can achieve the purpose of fire extinguishing is judged according to the above definite solution conditions.

[0101] When the control module 6 controls the initial setting of the fire water monitor system, according to the performance and installation requirements of the fire water monitor 4, the value ranges and certain value intervals of the flow rate Q, angles β and θ are preset. In case of a fire, after obtaining the actual fire location, the control module 6 will first continuously iterate within the value ranges of the flow rate Q, angles β and θ to solve for the values of Q, β and θ that satisfy the definite solution conditions; then, from the set of calculation results, it will select the solution with a smaller flow rate and a smaller angle adjustment; finally, the selected result is input into the control module 6. Among them, the flow rate is the water output flow rate, and the angle is the angle adjustment value.

[0102] In an alternative embodiment, in step S3, the control module 6 sends the calculated angle adjustment value to the power actuator of the selected fire water monitor 4 to be activated, and the power actuator adjusts the angle of the fire water monitor 4. The power actuator can be in the form of hydraulic or electric to control the spray angle of the fire water monitor 4 in the horizontal and vertical directions; the control module 6 sends the calculated water output to the supply pump 8, and the supply pump 8 controls the water output of the fire water monitor 4. The supply pump 8 automatically adjusts the water output through a frequency converter.

[0103] In an alternative embodiment, in step S4, after the spraying angle of the fire water monitor 4 is adjusted and the water output is set, the control module 6 sequentially activates the corresponding remote control valve 5, supply pump 8, and booster pump. It can be understood that each fire water monitor 4 has a corresponding remote control valve 5 to achieve individual and separate control.

[0104] In an alternative embodiment, after extinguishing the fire, it further includes the steps of closing the booster pump, supply pump 8, and remote control valve 5. Optionally, after the fire is extinguished, with one-key operation at the nearest fire control station or cab, the relevant booster pump, supply pump 8, and remote control valve 5 are automatically closed.

[0105] The fire extinguishing method of the container ship fire water monitor system provided in this embodiment can improve the convenience of operation, improve the accuracy of the water column 40 for fire extinguishing, shorten the fire extinguishing time, offset the influence of the external wind speed and direction, and reduce the load on the operator. The container ship fire water monitor system provided in this embodiment is applicable to both manned ships and unmanned ships.

[0106] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A fire water monitor system for a container ship, characterized in that, Comprising: A plurality of fire water cannons, which are respectively arranged in the engine room shed and the superstructure; Remote control valves, one remote control valve is provided corresponding to each of the fire water cannons, and the remote control valve is used to control the opening and closing of the fire water cannons; A supply pump, which is connected to a plurality of the fire water cannons through a fire water pipe; A fire alarm detection module, which is used to detect the actual fire location; An anemometer and wind vane, which is used to measure the magnitude and direction of the wind speed; A control module, which selects the fire water cannons that need to be opened according to the actual fire location sent by the received fire alarm detection module and the fire extinguishing ranges covered by each of the fire water cannons; calculates the water output and angle adjustment value of the fire water cannons according to the positions of the selected fire water cannons, the actual fire location, and the measured magnitude and direction of the wind speed; sends the angle adjustment value to the power actuating mechanism of the selected fire water cannons that need to be opened to adjust the angles of the fire water cannons; and sends the water output to the supply pump to control the water output of the fire water cannons.

2. The fire water monitor system for a container ship according to claim 1, characterized in that, A first booster pump is arranged below the engine room shed, and a second booster pump is arranged below the superstructure; The first booster pump is connected to all the fire water cannons arranged in the engine room shed through a fire water pipe; The second booster pump is connected to all the fire water cannons arranged on the superstructure through a fire water pipe.

3. The fire water monitor system for a container ship according to claim 2, characterized in that, The first booster pump and the second booster pump are connected to the supply pump through a fire water pipe.

4. The fire water monitor system for a container ship according to any one of claims 1 to 3, characterized in that, The engine room shed is provided with a first fire water cannon and a second fire water cannon, the muzzle outlet of the first fire water cannon faces the stern direction, and the muzzle outlet of the second fire water cannon faces the bow direction; The superstructure is provided with a third fire water cannon and a fourth fire water cannon, the muzzle outlet of the third fire water cannon faces the stern direction, and the muzzle outlet of the fourth fire water cannon faces the bow direction.

5. The fire water monitor system for a container ship according to claim 1, wherein The anemometer and wind vane is arranged above the superstructure.

6. The fire water monitor system for a container ship according to claim 1, characterized in that, The actual fire point location detected by the fire alarm detection module is the three-dimensional coordinate location corresponding to the container position arrangement; The three-dimensional coordinate location is located in a rectangular coordinate system, the origin of the rectangular coordinate system is located at the position where the fire water cannon that needs to be opened is located, the x-axis of the rectangular coordinate system points to the bow of the ship, the y-axis of the rectangular coordinate system points to the port side, and the z-axis of the rectangular coordinate system vertically points downward into the water.

7. The fire water monitor system for a container ship according to claim 1, characterized in that, The power actuating mechanism is a hydraulic actuating mechanism or an electric actuating mechanism.

8. The fire water monitor system for a container ship according to claim 1, characterized in that, The water supply pump includes a frequency converter, and the frequency converter adjusts the water output of the fire water cannon.

9. A fire extinguishing method for a fire fighting water cannon system of a container ship, characterized in that, Including the following steps: According to the actual fire location detected by the received fire alarm detection module and the fire extinguishing ranges covered by the fire water cannons arranged in the engine room shed and the superstructure, select the fire water cannons that need to be opened; According to the positions of the selected fire water cannons that need to be opened, the actual fire point location, and the magnitude and direction of the wind speed measured by the received anemometer and wind vane, calculate the water output and angle adjustment value of the fire water cannons; Send the angle adjustment value to the power actuating mechanism of the selected fire water cannons that need to be opened to adjust the angles of the fire water cannons; send the water output to the supply pump, and control the water output of the fire water cannons through the supply pump; And successively start to control the remote control valve, supply pump, and booster pump of the fire water monitor.

10. The fire extinguishing method according to claim 9, wherein After extinguishing the fire, it also includes the steps of closing the booster pump, the supply pump, and the remote control valve.

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