A fire-fighting device for marine methanol fuel

Abstract

This utility model provides a fire-fighting device for marine methanol fuel, applicable to the field of marine fire fighting. It includes a storage tank, a foam pump, a mixer, and a hose station. By installing transverse and longitudinal wave-damping components inside the storage tank, the stability of the foam liquid is improved when the ship encounters heave, pitching, and rolling. By installing buffer components on both ends of the wave-damping plates, the kinetic energy of the liquid impact is converted into elastic potential energy, reducing the possibility of weld cracking caused by prolonged rigid impact of the liquid on the transverse and longitudinal wave-damping components. By connecting the wave-damping plates inside the storage tank via threaded connections, the disassembly process of the transverse and longitudinal wave-damping components is realized, reducing maintenance and replacement costs.

Description

Technical Field

[0001] This utility application relates to the field of marine fire protection technology, and in particular to a fire protection device for marine methanol fuel. Background Technology

[0002] In marine methanol fire suppression systems, anti-methanol foam liquid is often used for fire extinguishing. International fire safety system regulations state that anti-methanol foam liquid exists in the storage tank at normal pressure. When ships are sailing, they are affected by wind and waves, which will cause rolling, pitching and heaving motions, resulting in violent shaking of the anti-methanol foam liquid in the storage tank. Long-term exposure may cause damage to the tank structure, interfere with liquid level detection, and may also cause the chemical components of the anti-methanol foam liquid to separate or degrade. Therefore, it is necessary to install anti-wave devices inside the storage tank.

[0003] Chinese patent CN209922060U discloses a working fluid storage tank, in which the tank body is connected to the left and right end covers via flanges, and sealing rings are provided between the shell and the left and right end covers. The left and right end covers are detachable for easy cleaning. Chinese patent CN218248202U discloses a marine multi-functional foam dry powder combined hose station device, in which foam liquid and seawater are mixed and transported through pipelines to fire hydrants, then through fire hoses to fire hoses, and finally sprayed onto the fire-fighting area for fire suppression. Chinese patent CN220110300U discloses a fire-fighting foam mixer, in which the concentration ratio of the foam liquid can be adjusted by adjusting the insertion depth of the shaft in the adjusting through-hole. Currently, the baffles of foam liquid storage tanks are mostly fixed to the inner wall of the tank by welding. Because the baffles are easily deformed by the impact of liquid over a long period, the cost of maintenance and replacement using welding is high.

[0004] Therefore, there is an urgent need to provide a fire-fighting device for marine methanol fuel that allows for easy maintenance and replacement of foam liquid baffles. Utility Model Content

[0005] The purpose of this application is to facilitate the maintenance and replacement of baffles in foam liquid storage tanks. Compared with the prior art, it provides a fire-fighting device for marine methanol fuel, including a storage tank, a foam pump, a mixer, a base, and a hose station. The storage tank is equipped with multiple transverse baffles and multiple longitudinal baffles, which are distributed at intervals. The transverse baffles include a baffle plate and a pair of mounting seats, which are fixedly connected to the left and right inner walls of the storage tank, respectively. The baffle plate is located between the pair of mounting seats and the two are connected by limiting members. The longitudinal baffles include a baffle plate and a pair of mounting seats, which are fixedly connected to the upper and lower inner walls of the storage tank, respectively. The baffle plate is located between the pair of mounting seats and the two are also connected by limiting members.

[0006] Furthermore, both the first and second wave deflectors are provided with multiple circular through holes, and both the first and second mounting bases are provided with multiple circular through holes. The limiting components include a sliding rod and a nut. The sliding rod moves through the circular through holes and the circular through holes and its tail extends to the outside of the first mounting base. The cross-section of the sliding rod is T-shaped, and its tail end is threaded. The nut is threadedly connected to the tail end of the sliding rod.

[0007] Furthermore, the first wave deflector has two arc-shaped sides that match the arc-shaped inner wall of the first mounting base, while the second wave deflector is rectangular with rounded corners at all four corners.

[0008] Furthermore, buffer components are fixedly connected to a pair of inner walls of both mounting base one and mounting base two. The pair of buffer components on mounting base one are located on both sides of wave deflector one, and the pair of buffer components on mounting base two are located on both sides of wave deflector two.

[0009] Furthermore, the buffer assembly includes a cylinder and a push rod. The push rod moves through the cylinder and one end extends into the inside of the cylinder. A tension spring is provided inside the cylinder and is sleeved on the outside of the push rod. The two ends of the tension spring are fixedly connected to the inner walls of the cylinder and the push rod, respectively.

[0010] Compared to existing technologies, the advantages of this application are:

[0011] (1) The cross design between the transverse wave-blocking components and the longitudinal wave-blocking components enables the foam liquid to adapt to the heave, pitch and roll conditions encountered by the ship during navigation, covering the main motion forms of the ship and improving the stability of the foam liquid in the storage tank.

[0012] (2) Both the slide bar and the wave deflector are connected by bolts and nuts, which facilitates the disassembly of the wave deflector and reduces the maintenance and replacement cost of the wave deflector components. The buffer components can be replaced separately, which reduces the overall maintenance cost.

[0013] (3) The use of buffer components realizes the flexible connection of the baffle plate, which can convert the impact kinetic energy of the liquid into the elastic potential energy of the buffer components. Compared with the traditional fixed connection method, it reduces the risk of weld cracking caused by long-term rigid impact of liquid. Attached Figure Description

[0014] Figure 1 This is an overall perspective view of this application;

[0015] Figure 2 This is a partial perspective view of this application;

[0016] Figure 3 This is a perspective view of the lateral wave-damping component of this application;

[0017] Figure 4 This is a perspective view of the longitudinal wave-damping component of this application;

[0018] Figure 5 This is a cross-sectional view of the transverse wave-damping component of this application;

[0019] Figure 6 This is a cross-sectional view of the longitudinal wave-damping component of this application;

[0020] Figure 7 This is a cross-sectional view of the buffer assembly of this application;

[0021] Figure 8 This is a cross-sectional view of the wave deflector moving under impact.

[0022] Figure 9 This is a front view of the wave deflector after it has been rotated and pulled out.

[0023] Explanation of the labels in the diagram:

[0024] 1-Storage tank, 2-Suction pipe, 3-Foam pump, 4-Mixer, 5-Hose station device, 6-Base, 7-Pipeline, 81-Break plate one, 82-Mounting seat one, 83-Slide rod, 84-Mounting seat two, 85-Break plate two, 86-Buffer assembly, 861-Cylinder, 862-Tension spring, 863-Push rod, 87-Nut. Detailed Implementation

[0025] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0026] Example 1:

[0027] This utility model provides a fire-fighting device for marine methanol fuel. Please refer to [link / reference]. Figure 1 The system includes a storage tank 1, a foam pump 3, a mixer 4, and a hose station device 5. A base 6 is fixedly connected to the lower surface of the storage tank 1, and it is connected to the foam pump 3 through a suction pipe 2. The foam pump 3 and the mixer 4 are connected through a pipe 7, and the mixer 4 and the hose station device 5 are also connected through a pipe 7. The mixer 4 adopts the publicly available prior art, and its principle is to control the concentration ratio of the foam liquid by adjusting the insertion depth of the shaft in the adjusting through hole. The hose station device 5 adopts the publicly available prior art, and its principle is to transport the liquid after mixing foam liquid and seawater through pipelines to fire hydrants, and then through fire hoses to fire guns, and then spray it onto the fire extinguishing area through the fire guns to carry out firefighting operations.

[0028] Working principle: In the event of a methanol fuel leak or fire, foam pump 3 is activated. Foam pump 3 draws foam liquid from storage tank 1 through suction pipe 2, and then inputs it into mixer 4 through pipe 7. The water supply pipe of mixer 4 draws water from the ship's water supply source through a water pump. After the foam liquid and water are mixed in mixer 4, they flow into hose station device 5 through pipe 7. The mixed foam liquid flows into the main pipe through the fire hydrant in hose station device 5, and then reaches the fire gun. After being foamed by the fire gun, it is sprayed into the fire extinguishing area to carry out firefighting operations.

[0029] Example 2:

[0030] Based on the first embodiment, this embodiment adds a transverse wave-damping component and a longitudinal wave-damping component inside the storage tank 1, as detailed below:

[0031] Please see Figure 2 and Figure 3 The storage tank 1 is equipped with multiple transverse and longitudinal wave-damping components, which are spaced apart. Each transverse wave-damping component includes a wave-damping plate 81 and a pair of mounting seats 82. The pair of mounting seats 82 are fixedly connected to the left and right inner walls of the storage tank 1, respectively. The wave-damping plate 81 is located between the pair of mounting seats 82, and the two are slidably connected by limiting members. Each longitudinal wave-damping component includes a wave-damping plate 85 and a pair of mounting seats 84. The pair of mounting seats 84 are fixedly connected to... The second wave deflector 85 is attached to the upper and lower inner walls of the storage tank 1. It is located between a pair of mounting seats 84 and the two are also slidably connected by limiting members. There is a large connection area between the mounting seat 82 and the inner wall of the storage tank 1, which can reduce the stress at the connection between the transverse wave deflector and the inner wall of the storage tank 1. The storage tank 1 adopts the publicly available prior art. The tank body of the storage tank 1 is connected to the left end cover and the right end cover by flanges. A sealing ring is provided between the shell and the left end cover and the right end cover. The left end cover and the right end cover of the storage tank can be disassembled for easy cleaning.

[0032] Please see Figure 3 Both the first wave-shielding plate 81 and the second wave-shielding plate 85 are provided with multiple circular through holes (in... Figure 3 (represented by 'a' in the text), both the mounting base 1 82 and the mounting base 2 84 are provided with multiple circular through holes 2 (in... Figure 3 (represented by b in the text), the limiting component includes a slide rod 83 and a nut 87. The slide rod 83 movably passes through the first circular through hole and the second circular through hole, and its tail end extends to the outside of the mounting base 82. The slide rod 83 has a T-shaped cross section, and its tail end is threaded. The nut 87 is threadedly connected to the tail end of the slide rod 83.

[0033] Please see Figure 3 and Figure 4The baffle plate 81 has rounded edges on both sides that fit the arc-shaped inner wall of the mounting base 82, and its upper and lower ends are straight with gaps between them and the inner wall of the storage tank 1 to allow liquid flow and reduce the possibility of impurities settling in dead zones. A circular through-hole 3 is provided in the center of the baffle plate 81. Figure 4 (represented by c in the text), and multiple circular through holes are evenly distributed around the outer circumference of the three circular through holes (in the text). Figure 4 (represented by d in the text) can reduce the inertial force experienced by the wave deflector 81 when impacted by liquid.

[0034] Please see Figure 5 and Figure 6 The second wave deflector 85 is rectangular in shape, with rounded corners at all four corners to reduce localized wear caused by stress concentration from liquid impact. A circular through-hole 5 is located in the center of the second wave deflector 85. Figure 6 (represented by e in the text), and multiple circular through holes six are evenly distributed around the outer circumference of the circular through hole five (in the text). Figure 6 (represented by f in Chinese).

[0035] Please see Figure 3 and Figure 5 Both mounting base 1 82 and mounting base 2 84 have a pair of buffer components 86 fixedly connected to their inner walls. The pair of buffer components 86 on mounting base 1 82 are located on both sides of wave deflector 1 81, and the pair of buffer components 86 on mounting base 2 84 are located on both sides of wave deflector 2 85, so that wave deflector 1 and wave deflector 2 can be subjected to the buffering force provided by the buffer components under liquid impact.

[0036] Please see Figure 7 The buffer assembly 86 includes a cylinder 861 and a push rod 863. The push rod 863 movably passes through the cylinder 861 and one end extends into the inside of the cylinder 861. A tension spring 862 is provided inside the cylinder 861 and is sleeved on the outside of the push rod 863. The two ends of the tension spring 862 are fixedly connected to the inner walls of the cylinder 861 and the push rod 863, respectively.

[0037] Compared with Example 1, this example adds the above-mentioned content. When the ship is rocking, the foam liquid will slosh inside the storage tank 1. When the foam liquid sloshes along the X-axis (i.e., along the axial direction of the storage tank 1) inside the storage tank 1, it will impact the transverse wave deflector assembly, causing the wave deflector 81 to move along the impact direction and squeeze the buffer assembly 86 on one side. This causes the squeezed push rod 863 to move into the cylinder 861, driving the tension spring 862 to stretch. The stretching deformation of the tension spring 862 provides resistance to the movement of the wave deflector 81, thereby buffering the wave deflector 81 and reducing the impact of the foam liquid on the inner wall of the storage tank 1. When the foam liquid sloshes along the Y-axis inside the storage tank 1, the working principle of the longitudinal wave deflector assembly is the same as that of the transverse wave deflector assembly. The corresponding buffer assembly 86 can provide resistance to the movement of the wave deflector 85, similarly reducing the impact of the foam liquid on the inner wall of the storage tank 1.

[0038] When the transverse and longitudinal wave-damping components need to be replaced or repaired, the slide bar 83 and nut 87 can be removed to free the wave-damping plate 81 and wave-damping plate 85. Then, the wave-damping plate 81 can be rotated 90° to detach it from the mounting base 82 and removed. After removing the wave-damping plate 81, the wave-damping plate 85 can be directly pulled out horizontally from the inside of the mounting base 84.

[0039] The above description is only the best implementation method adopted in this application in combination with current practical needs, but the scope of protection of this application is not limited thereto.

Claims

1. A fire extinguishing device for marine methanol fuel, comprising a tank (1), a foam pump (3), a mixer (4), a base (6) and a hose station device (5), characterized in that, The storage tank (1) is provided with multiple transverse wave-damping components and multiple longitudinal wave-damping components. The transverse wave-damping components and longitudinal wave-damping components are distributed at intervals. The transverse wave-damping component includes a wave-damping plate (81) and a pair of mounting seats (82). The pair of mounting seats (82) are fixedly connected to the left and right inner walls of the storage tank (1). The wave-damping plate (81) is located between the pair of mounting seats (82) and the two are connected by limiting members. The longitudinal wave-damping component includes a wave-damping plate (85) and a pair of mounting seats (84). The pair of mounting seats (84) are fixedly connected to the upper and lower inner walls of the storage tank (1). The wave-damping plate (85) is located between the pair of mounting seats (84) and the two are also connected by limiting members.

2. A fire-fighting device for marine methanol fuel according to claim 1, characterized in that, Both the first wave deflector (81) and the second wave deflector (85) are provided with multiple circular through holes, and both the first mounting base (82) and the second mounting base (84) are provided with multiple circular through holes. The limiting component includes a sliding rod (83) and a nut (87). The sliding rod (83) moves through the first and second circular through holes and its tail end extends to the outside of the first mounting base (82). The cross-section of the sliding rod (83) is T-shaped and its tail end is threaded. The nut (87) is threaded to the tail end of the sliding rod (83).

3. A fire-fighting device for marine methanol fuel according to claim 2, characterized in that, The first wave deflector (81) has two arc-shaped sides that are adapted to the arc-shaped inner wall of the first mounting base (82). The second wave deflector (85) is rectangular and has arc-shaped rounded corners at all four corners.

4. A fire-fighting device for marine methanol fuel according to claim 3, characterized in that, Both mounting base one (82) and mounting base two (84) have a pair of buffer components (86) fixedly connected to their inner walls. The pair of buffer components (86) on mounting base one (82) are located on both sides of wave deflector one (81), and the pair of buffer components (86) on mounting base two (84) are located on both sides of wave deflector two (85).

5. A fire-fighting device for marine methanol fuel according to claim 4, characterized in that, The buffer assembly (86) includes a cylinder (861) and a push rod (863). The push rod (863) is movably inserted through the cylinder (861) and one end extends into the interior of the cylinder (861). A tension spring (862) is provided inside the cylinder (861) and is sleeved on the outside of the push rod (863). The two ends of the tension spring (862) are fixedly connected to the inner walls of the cylinder (861) and the push rod (863), respectively.

Images