Pressure water mist fire extinguishing device for fire fighting on ship

Abstract

The invention belongs to the technical field of fire fighting, and discloses a pressure water mist fire extinguishing device for fire fighting on a ship. The pressure water mist fire extinguishing device for ship fire fighting comprises a back plate and straps, the straps are fixedly connected to the back plate, a water tank is fixedly connected to the left side of the back plate through a fixing assembly, a mounting frame is arranged on the front side of the back plate, a fixing frame is rotationally connected to the interior of the mounting frame through a bearing in a bearing hole, and the fixing frame is fixedly connected to the left side of the back plate. A spray gun is fixedly connected to the fixing frame through a containing assembly. According to the pressure water mist fire extinguishing device for fire fighting on the ship, through the design of the rotating assembly, water flow and rotating wind which are diffused outwards and generated by centrifugal force generated by rotation can be matched with water flow falling due to gravity, the coverage area on the edge of flame is enlarged, the outward spreading trend of the flame is restrained, and therefore the fire extinguishing speed of a fire source is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of fire protection, and particularly to a pressure fine water mist fire extinguishing device for ship fire fighting. Background Art

[0002] Fine water mist fire extinguishing is an efficient and environmentally friendly fire extinguishing technology. By spraying a water mist of tiny water droplets (usually with a diameter between 1 and 100 micrometers), the high surface area and evaporation cooling effect of the water mist are used to rapidly reduce the temperature around the fire source, thereby achieving the effect of extinguishing the fire. Fine water mist fire extinguishing systems are widely used in high-risk and high-value places, especially in environments with greater fire hazards.

[0003] On ships, fires may occur due to reasons such as operational errors. Since the equipment on the ship is relatively expensive, fine water mist fire extinguishing equipment is used for fire extinguishing. However, conventional fine water mist fire extinguishing devices are integrally designed and installed in the cabin. But in the case of small fires or fires outside the cabin, the integrally designed fire extinguishing device does not work well. Moreover, most of the nozzles of the fire extinguishing devices are simple atomizing nozzles and do not have a replacement effect. Also, on the ship, due to strong winds and waves, it may be difficult to stand steadily during the fire extinguishing process, resulting in the water mist not being well positioned near the fire source when using conventional fire extinguishing devices. Therefore, we urgently need a pressure fine water mist device for ship fire fighting to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a pressure fine water mist fire extinguishing device for ship fire fighting, which solves the problems raised in the background art.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: A pressure fine water mist fire extinguishing device for ship fire fighting, including a back plate and a shoulder strap. The shoulder strap is fixedly connected to the back plate. A water tank is fixedly connected to the left side of the back plate through a fixing component. An installation frame is arranged on the front side of the back plate. A fixing frame is rotatably connected in the installation frame through a bearing in a bearing hole. A spray gun is fixedly connected to the fixing frame through a placement component.

[0006] A pipeline is fixedly communicated with the spray gun, and the pipeline is fixedly communicated with the spray gun. The end of the pipeline far from the spray gun is fixedly communicated with a connecting pipe. A shunt pipe is fixedly communicated with the pipeline. The shunt pipe is located above the pipeline. The shunt pipe is fixedly communicated with the upper part of the connecting pipe. The end of the connecting pipe far from the pipeline is fixedly communicated with a nozzle.

[0007] A rotating component and a pressurizing component are arranged in the connecting pipe, and a replacement component is arranged in the nozzle.

[0008] The rotating assembly is used to control the periphery of the fire, the pressurizing assembly is used to pressurize the water flow again to increase the release pressure of the water flow ejected, and the replacement assembly is used to replace the size of the hole to facilitate switching different water mist effects.

[0009] Preferably, the rotating assembly includes:

[0010] Partition plate one, which is fixedly connected to the inner wall of the connecting pipe and is located above the connecting pipe, and the shunt pipe is located above the partition plate one;

[0011] Partition plate two, which is fixedly connected to the inner wall of the connecting pipe and is located below the partition plate one;

[0012] At the central position of the upper surface of the partition plate two, a rotating rod one is rotatably connected through a bearing in a bearing hole opened. A plurality of rotating plates are fixedly connected to the rotating rod one. A guiding hole is opened on the partition plate one. An annular through hole is opened on the connecting pipe and is located between the partition plate one and the partition plate two. An annular guide rail is fixedly connected in the annular through hole. An annular slider is slidably connected in the annular guide rail. The rotating plate is fixedly connected to the annular slider. A plurality of water outlet through holes are opened on the annular slider.

[0013] Preferably, a plurality of fan blades are fixedly connected to the outer side of the annular slider. A cavity is opened in the fan blade, and the cavity is communicated with the water outlet through hole. Through holes are opened on the side and the lower surface of the fan blade and are fixedly communicated with a water outlet nozzle.

[0014] Preferably, the pressurizing assembly includes:

[0015] Annular pipe one, which is fixedly connected to the inner wall of the connecting pipe and is located below the pipe;

[0016] Water bag, the top end of which is fixedly connected to the annular pipe one;

[0017] Annular pipe two, which is fixedly connected to the inner wall of the connecting pipe, and the bottom end of the water bag is fixedly connected to the annular pipe two;

[0018] Annular plate, which is fixedly connected to the inner wall of the connecting pipe, and the annular plate is located outside the water bag. An annular groove is opened on the annular plate. One end of a plurality of spring rods is fixedly connected in the annular groove. The other end of the spring rod is fixedly connected with an arc-shaped plate, and the arc-shaped plate contacts the water bag.

[0019] Preferably, the pressurizing assembly further includes:

[0020] Threaded plate, which is opened on the inner wall of the connecting pipe and is located below the annular pipe two;

[0021] An hourglass tube, the hourglass tube is fixedly connected to the inner wall of the connecting tube and is located below the threaded plate. A cross plate is fixedly connected to the lower surface of the hourglass tube. A second rotating rod is rotatably connected to the upper surface of the cross plate through a bearing in a bearing hole. The top end of the second rotating rod extends upward to the upper part of the hourglass tube. A plurality of conical blades are fixedly connected to the second rotating rod and are located inside the lower part of the hourglass tube. A spiral blade is fixedly connected to the second rotating rod located in the upper part of the hourglass tube.

[0022] Preferably, the replacement component includes:

[0023] Arc-shaped notches, the arc-shaped notches are respectively opened on the left and right sides of the nozzle. Every two arc-shaped notches form a group, with a total of three groups, and are opened at equal intervals along the Y-axis;

[0024] Shaft rods, the shaft rods are fixedly connected to the central positions inside the arc-shaped notches, and the number of shaft rods is six;

[0025] Orifice plate, a rectangular circular through hole is opened on the orifice plate. Magnetic attraction pieces I are fixedly connected to both the left and right sides of the rectangular circular through hole. Magnetic attraction pieces II are fixedly connected to the shaft rods. The orifice plate is located inside the arc-shaped notch, and the shaft rods are located inside the rectangular circular through hole. The orifice plate is designed in an hourglass shape. A water outlet is opened on one side of the orifice plate, and an arc-shaped through hole is opened on the other side of the orifice plate;

[0026] Magnetic attraction piece III, the magnetic attraction piece III is fixedly connected to the left and right sides of the orifice plate.

[0027] Preferably, the number of orifice plates is six, and two are set as a group and arranged in corresponding arc-shaped notches. Adjacent orifice plates are magnetically attracted by the magnetic attraction piece III.

[0028] Preferably, the fixing component includes a placement plate. A placement seat is fixedly connected to the upper surface of the placement plate. A silica gel pad is fixedly connected inside the placement seat. A support frame is fixedly connected to the left side of the back plate;

[0029] A water tank is arranged on the left side of the back plate. The water tank is inserted into the placement seat and contacts the silica gel pad. The water tank also contacts the support frame. A pressure valve is fixedly connected to the central position of the upper surface of the water tank. A water inlet pipe and an air inlet pipe are respectively and fixedly communicated with the back plate, and the ends of the water inlet pipe and the air inlet pipe away from the back plate both penetrate into the water tank.

[0030] Preferably, the placement component includes a placement rack. The placement rack is fixedly connected to the outside of the mounting rack. A gas cylinder is movably inserted into the placement rack. A stop valve is fixedly connected to the port of the gas cylinder. A pressure reducing valve is fixedly communicated with the stop valve. One end of the pressure reducing valve is fixedly communicated with the air inlet pipe through a first hose, and the other end of the pressure reducing valve is fixedly communicated with the spray gun through a second hose. The spray gun is also fixedly communicated with the water inlet pipe through a third hose.

[0031] By adopting the foregoing technical solution, the beneficial effects of the present invention are as follows:

[0032] 1. For the pressure fine water mist fire extinguishing device used on the ship, through the design of the rotating assembly, the outward-diffusing water flow and rotating wind generated by the centrifugal force produced by rotation can be combined with the water flow falling due to gravity to increase the coverage area of the flame edge and inhibit the outward spreading trend of the flame, thereby improving the fire extinguishing speed for the fire source.

[0033] 2. For the pressure fine water mist fire extinguishing device used on the ship, through the design of the pressurizing assembly, the pressure of the water flow in the connecting pipe is increased, thereby improving the effect and range of the ejected water mist. And in combination with the design of the replacement assembly, different types of water outlets can be replaced, so that the water mist form can be quickly switched, further improving the fire extinguishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 is a front view structural schematic diagram of the present invention;

[0036] Figure 3 is of the present invention Figure 2 is a schematic diagram of the A-A sectional structure in the present invention;

[0037] Figure 4 is a top view structural schematic diagram of the present invention;

[0038] Figure 5 is of the present invention Figure 4 is a schematic diagram of the B-B sectional structure in the present invention;

[0039] Figure 6 is of the present invention Figure 4 is a schematic diagram of the C-C sectional structure in the present invention;

[0040] Figure 7 is of the present invention Figure 3 is an enlarged structural schematic diagram at A in the present invention.

[0041] In the figure: 1, back plate; 2, shoulder strap; 3, fixing assembly; 4, water tank; 5, mounting bracket; 6, fixing bracket; 7, placing assembly; 8, spray gun; 9, pipeline; 10, connecting pipe; 11, shunt pipe; 12, nozzle;

[0042] 13, rotating assembly; 14, pressurizing assembly; 15, replacement assembly; 16, pressure valve; 17, water inlet pipe; 18, air inlet pipe;

[0043] 31, placing plate; 32, placing seat; 33, silica gel pad; 34, support frame;

[0044] 71. Placing rack; 72. Gas cylinder; 73. Stop valve; 74. Pressure reducing valve; 75. Hose 1; 76. Hose 2; 77. Hose 3;

[0045] 131. Partition 1; 132. Partition 2; 133. Rotating rod 1; 134. Rotating plate; 135. Guide hole; 136. Annular through hole; 137. Annular guide rail; 138. Annular slider; 139. Water outlet through hole; 1310. Fan blade; 1311. Cavity; 1312. Water outlet nozzle;

[0046] 141. Annular pipe 1; 143. Water bag; 144. Annular pipe 2; 145. Annular plate; 146. Annular groove; 147. Spring rod; 148. Arc plate; 149. Threaded plate; 1410. Hourglass pipe; 1411. Horizontal plate; 1412. Rotating rod 2; 1413. Conical blade; 1414. Spiral blade;

[0047] 151. Arc notch; 152. Shaft rod; 153. Hole plate; 154. Rectangular circular through hole; 155. Magnetic sheet 2; 156. Water outlet; 157. Arc through hole; 158. Magnetic sheet 3; 159. Magnetic sheet 1. Specific embodiments

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] Please refer to Figure 1-7 , the present invention provides a technical solution: a pressure fine water mist fire extinguishing device for ship fire fighting, including a back plate 1 and a shoulder strap 2. The shoulder strap 2 is fixedly connected to the back plate 1. The left side of the back plate 1 is fixedly connected to a water tank 4 through a fixing component 3. An installation frame 5 is arranged on the front side of the back plate 1. A fixing frame 6 is rotatably connected in the installation frame 5 through a bearing in the bearing hole. A spray gun 8 is fixedly connected to the fixing frame 6 through a placing component 7;

[0050] A pipeline 9 is fixedly communicated with the spray gun 8, and the pipeline 9 is fixedly communicated with the spray gun 8. One end of the pipeline 9 far away from the spray gun 8 is fixedly communicated with a connecting pipe 10. A shunt pipe 11 is fixedly communicated with the pipeline 9. The shunt pipe 11 is located above the pipeline 9. The shunt pipe 11 is fixedly communicated with the upper part of the connecting pipe 10. One end of the connecting pipe 10 far away from the pipeline 9 is fixedly communicated with a nozzle 12;

[0051] A rotating component 13 and a pressurizing component 14 are arranged in the connecting pipe 10, and a replacement component 15 is arranged in the nozzle 12;

[0052] The rotating component 13 is used to control the periphery of the fire, and the pressurizing component 14 is used to pressurize the water flow again to increase the release pressure of the water flow ejected, and the replacement component 15 is used to change the size of the hole to facilitate switching different water mist effects.

[0053] The rotating component 13 includes:

[0054] The first partition plate 131 is fixedly connected to the inner wall of the connecting pipe 10 and is located above the connecting pipe 10, and the shunt pipe 11 is located above the first partition plate 131;

[0055] The second partition plate 132 is fixedly connected to the inner wall of the connecting pipe 10 and is located below the first partition plate 131;

[0056] At the central position of the upper surface of the second partition plate 132, a first rotating rod 133 is rotatably connected through a bearing in a bearing hole. A plurality of rotating plates 134 are fixedly connected to the first rotating rod 133. A guiding hole 135 is opened on the first partition plate 131. An annular through hole 136 is opened on the connecting pipe 10 between the first partition plate 131 and the second partition plate 132. An annular guide rail 137 is fixedly connected in the annular through hole 136. An annular slider 138 is slidably connected in the annular guide rail 137. The rotating plate 134 is fixedly connected to the annular slider 138. A plurality of water outlet through holes 139 are opened on the annular slider 138.

[0057] The opening of the annular through hole 136 divides the connecting pipe 10 into two parts. The annular guide rail 137 is used to connect the two parts to form a new connecting pipe 10. The annular guide rail 137 and the annular slider 138 are slidably connected and provided with a seal to prevent water from overflowing. The rotating plate 134 is inclined to facilitate direct contact with the water flow, so as to realize the rotation of the rotating plate 134 by using the water flow. The rotating plates 134 are arranged at equal distances from each other. The design of the water outlet through holes 139 is to discharge the water in the second partition plate 132 outward by centrifugal force. The water outlet through holes 139 are opened between two adjacent rotating plates 134. The guiding hole 135 provided on the first partition plate 131 is used to guide the water shunted into the first partition plate 131. The guiding hole 135 is also inclined, and the inclination angle is the same as that of the rotating plate 134. Since the water led out by the shunt pipe 11 also has a certain impact force due to the pressure, the led-out water flow can push the rotating plate 134 to rotate.

[0058] A plurality of fan blades 1310 are fixedly connected to the outside of the annular slider 138. A cavity 1311 is opened in the fan blades 1310, and the cavity 1311 is communicated with the water outlet through holes 139. Through holes are opened on the side and the lower surface of the fan blades 1310 and are fixedly communicated with water outlet nozzles 1312.

[0059] The fan blade 1310 is designed in an L shape. The water outlet nozzle 1312 on the side discharges water outward by centrifugal force when the fan blade 1310 rotates following the annular slider 138. The water outlet nozzle 1312 on the lower surface discharges water by gravity. It should be noted that since the water pressure in the inner cavity 1311 of the fan blade 1310 gradually weakens, the water discharged by the water outlet nozzle 1312 does not form a mist, but may be in the form of water droplets or columns. When the fan blade 1310 rotates, a wind field will be formed, which can cooperate with the water column discharged downward by gravity to suppress the edge of the fire location, thereby preventing the spread of the fire.

[0060] The pressurizing assembly 14 includes:

[0061] The first annular pipe 141 is fixedly connected to the inner wall of the connecting pipe 10 and is located below the pipe 9;

[0062] The water bag 143 has its top end fixedly connected to the first annular pipe 141;

[0063] The second annular pipe 144 is fixedly connected to the inner wall of the connecting pipe 10, and the bottom end of the water bag 143 is fixedly connected to the second annular pipe 144;

[0064] The annular plate 145 is fixedly connected to the inner wall of the connecting pipe 10 and is located outside the water bag 143. An annular groove 146 is formed on the annular plate 145. One end of a number of spring rods 147 is fixedly connected in the annular groove 146, and the other end of the spring rod 147 is fixedly connected to an arc-shaped plate 148, and the arc-shaped plate 148 is in contact with the water bag 143.

[0065] The number of spring rods 147 is multiple. Two spring rods 147 form a group and are arranged in sequence along the Y-axis direction. That is, a group of spring rods 147 is arranged above the annular groove 146. The two spring rods 147 in this group are located on the left and right sides of the water bag 143. The position of the lower group of spring rods 147 is designed to be offset from that of the upper spring rods 147. Therefore, multiple groups of spring rods 147 are all designed to be offset, and gaps are provided between multiple groups of spring rods 147. Under normal circumstances, the spring rods 147 and the arc-shaped plate 148 will slightly compress the water bag 143, thereby reducing the volume of the water bag 143. When water flows through the water bag 143, under the action of pressure, the water flow will cause the spring rods 147 to move outward, thereby expanding the water bag 143. Also, since the spring rods 147 will release elastic force after being compressed, with the utilization of elastic potential energy, the water bag 143 can be toggled and its internal volume can be compressed, so as to compress the water flow when it passes through, providing a secondary pressurization effect.

[0066] The pressurizing assembly 14 also includes:

[0067] The threaded plate 149 is provided on the inner wall of the connecting pipe 10 and is located below the annular pipe two 144;

[0068] The hourglass pipe 1410 is fixedly connected to the inner wall of the connecting pipe 10 and is located below the threaded plate 149. A horizontal plate 1411 is fixedly connected to the lower surface of the hourglass pipe 1410. A second rotating rod 1412 is rotatably connected to the upper surface of the horizontal plate 1411 through a bearing in a bearing hole. The top end of the second rotating rod 1412 extends upward to the upper part of the hourglass pipe 1410. A plurality of conical blades 1413 are fixedly connected to the second rotating rod 1412 and are located inside the lower hourglass pipe 1410. A spiral blade 1414 is fixedly connected to the second rotating rod 1412 located in the upper hourglass pipe 1410.

[0069] When the water flow passes through the threaded plate 149, the water flow will form a vortex and move downward. During the movement, it will drive the spiral blade 1414 in the hourglass pipe 1410 to rotate. When the second rotating rod 1412 on the spiral blade 1414 rotates, it will drive the conical blade 1413 to rotate, driving the water flow to be discharged outward in a rotating state, improving the atomization effect and flow rate of the water droplets. Due to the special design of the hourglass pipe 1410, a pressurizing effect is also achieved after the water flow passes through the narrower position.

[0070] The replacement component 15 includes:

[0071] Arc-shaped notches 151 are respectively provided on the left and right sides of the nozzle 12. Every two arc-shaped notches 151 form a group, with a total of three groups, and are provided at equal intervals along the Y-axis;

[0072] Shaft rods 152 are fixedly connected to the central positions inside the arc-shaped notches 151, and the number of shaft rods 152 is six;

[0073] A hole plate 153 is provided with oblong through holes 154. Magnetic attraction pieces one 159 are fixedly connected to both the left and right sides of the oblong through holes 154. Magnetic attraction pieces two 155 are fixedly connected to the shaft rods 152. The hole plate 153 is located inside the arc-shaped notches 151, and the shaft rods 152 are located inside the oblong through holes 154. The hole plate 153 is designed in an hourglass shape. A water outlet 156 is provided on one side of the hole plate 153, and an arc-shaped through hole 157 is provided on the other side of the hole plate 153;

[0074] Magnetic attraction pieces three 158 are fixedly connected to both the left and right sides of the hole plate 153.

[0075] The orifice plate 153 is a thin sheet, and a gasket is provided between each orifice plate 153 and the arc-shaped notch 151 for sealing it to prevent water from flowing outwards. The orifice plate 153 has two states. One is when two adjacent orifice plates 153 come into contact to form an orifice plate state. At this time, the contact surface is the side with the water outlet 156. The magnetic sheet one 159 on the orifice plate 153 near the outer side of the rectangular circular through-hole 154 is magnetically attracted to the magnetic sheet two 155 on the shaft rod 152. The rectangular circular through-hole 154 has a rectangular middle part and arc-shaped designs on both sides. The opposite sides of the two orifice plates 153 are magnetically attracted by the magnetic sheet three 158. At this time, the other side of the orifice plate 153 is located outside the nozzle 12. The second is when the side of the two adjacent orifice plates 153 with the arc-shaped through-hole 157 is located inside the nozzle 12 and forms a circular hole through the magnetic attraction of the magnetic sheet three 158. It should be noted that when one orifice plate 153 forms an orifice plate state, the other two orifice plates 153 both have the side with the arc-shaped through-hole 157 located inside the nozzle 12. When switching the orifice plate 153, taking the orifice plate 153 with the water outlet 156 moving out of the nozzle 12 as an example, pull the orifice plate 153 outwards. The magnetic sheet one 159 originally near the outer side is separated from the magnetic sheet two 155 on the shaft rod 152. Pull the orifice plate 153 outwards to make the shaft rod 152 located at the center of the rectangular circular through-hole 154. At this time, rotate the orifice plate 153 to make the side with the arc-shaped through-hole 157 rotate into the nozzle 12. When the side with the water outlet 156 is located outside the nozzle 12, push the orifice plate 153 inwards to magnetically attract the magnetic sheet one 159 near the outer side of the rectangular circular through-hole 154 to the magnetic sheet two 155 on the shaft rod 152, and magnetically attract the magnetic sheet three 158 on the two adjacent orifice plates 153.

[0076] The number of orifice plates 153 is six, and two are set as a group in the corresponding arc-shaped notches 151. The two adjacent orifice plates 153 are magnetically attracted by the magnetic sheet three 158.

[0077] Two opposite orifice plates 153 form a complete circular orifice plate. The diameters of the water outlets 156 on the orifice plates 153 of each layer are different, adapting to a variety of atomizing holes and providing more atomizing densities.

[0078] The fixing component 3 includes a placement plate 31. The upper surface of the placement plate 31 is fixedly connected with a placement seat 32. A silica gel pad 33 is fixedly connected inside the placement seat 32. The left side of the back plate 1 is fixedly connected with a support frame 34;

[0079] A water tank 4 is arranged on the left side of the back plate 1. The water tank 4 is inserted into the placement seat 32 and contacts the silica gel pad 33. The water tank 4 also contacts the support frame 34. A pressure valve 16 is fixedly connected to the center position of the upper surface of the water tank 4. A water inlet pipe 17 and an air inlet pipe 18 are respectively and fixedly communicated with the back plate 1, and the ends of the water inlet pipe 17 and the air inlet pipe 18 away from the back plate 1 both penetrate into the water tank 4.

[0080] The placing component 7 includes a placing rack 71 which is fixedly connected to the outer side of the mounting rack 5. A gas cylinder 72 is movably inserted into the placing rack 71. A stop valve 73 is fixedly connected to the port of the gas cylinder 72. A pressure reducing valve 74 is fixedly communicated with the stop valve 73. One end of the pressure reducing valve 74 is fixedly communicated with the air inlet pipe 18 through a first hose 75, and the other end of the pressure reducing valve 74 is fixedly communicated with the spray gun 8 through a second hose 76. The spray gun 8 is also fixedly communicated with the water inlet pipe 17 through a third hose 77.

[0081] When the pressure fine water mist fire extinguishing device for ship fire fighting works;

[0082] When adding water to the water tank 4, press down the pressure valve 16 on the water tank 4. After the pressure in the water tank 4 is removed, open the pressure valve 16, add water to the water tank 4 and then reinstall the pressure valve 16. Install the gas cylinder 72 on the placing rack 71. At this time, the gas cylinder 72 is in a full gas state. Screw the pressure reducing valve 74 tightly with the stop valve 73 on the gas cylinder 72 to complete the connection. Connect the first hose 75 with the air inlet pipe 18, connect the second hose 76 with the spray gun 8, and connect the third hose 77 on the spray gun 8 with the water inlet pipe 17. When in use, turn the stop valve 73 on the gas cylinder 72 to make the gas in the gas cylinder 72 enter the water tank 4 and pressurize the inside. The user can press the spray gun 8 to spray the water in the water tank 4 outwards;

[0083] When the water flow passes through the spray gun 8 and moves into the pipeline 9, part of the water flow enters above the partition plate 131 in the connecting pipe 10 through the shunt pipe 11. At this time, the water flow is located in the partition area between the partition plate 131 and the connecting pipe 10. The water flow is discharged downward through the guiding hole 135. The discharged water flow will contact the rotating plate 134, and through the design of the first rotating rod 133, the rotating plate 134 rotates in the space between the partition plate 131 and the partition plate 132. The rotation of the rotating plate 134 drives the annular slider 138 in the annular guide rail 137 to rotate accordingly. At this time, the water flow between several rotating plates 134 flows outwards through the corresponding water outlet through holes 139 and flows into the cavity 1311 opened in the fan blade 1310. The water in the fan blade 1310 will be sprayed out through the water outlet nozzles 1312 on the side under the action of centrifugal force, and part of the water will also be sprayed out through the water outlet nozzles 1312 on the lower side under the action of gravity. When the fan blade 1310 rotates and cooperates with the water flowing out from the side and the lower side, it can suppress the edge of the fire source and reduce the spread of the fire. When the fan blade 1310 rotates following the annular slider 138, it will also form a rotating wind, and the wind will attract the flame to move upwards, reducing the situation of spreading to the surrounding area;

[0084] Most of the water will flow through the pipe 9 into the water bag 143 provided in the connecting pipe 10. When the water does not flow into the water bag 143, the arc plate 148 on the spring rod 147 will compress the space in the water bag 143. When the water flows into the water bag 143, the water flow will expand the water bag 143, thereby driving the arc plate 148 on the spring rod 147 to move. With the elastic potential energy of the spring rod 147, the water bag 143 will continuously move, thereby increasing the pressure of the water flow and improving the flow. After the water flows out through the water bag 143, it will generate a rotational force through the threaded plate 149. The water with the rotational force will drive the second rotating rod 1412 on the spiral blade 1414 to rotate. When the second rotating rod 1412 rotates, the spiral blade 1414 rotates, and the water flows out through the hourglass tube 1410 in a rotating manner. The outflowing water is sprayed out through the water outlet 156 on the pre-connected synthetic orifice plate 153 to form water mist, which suppresses the fire source.

[0085] When it is necessary to use the water outlet 156 on the orifice plate 153 of other sizes, it is only necessary to pull the existing orifice plate 153 outward so that the shaft rod 152 is located at the center of the rectangular through hole 154 on the orifice plate 153, and then rotate the orifice plate 153 originally located in the nozzle 12 to the outside, and rotate the orifice plate 153 located on the outside to the inside of the nozzle 12, and push it inward again, so that the two adjacent orifice plates 153 are magnetically attracted by the magnetic suction piece three 158, and the magnetic suction piece one 159 in the rectangular through hole 154 is magnetically attracted to the magnetic suction piece two 155 on the shaft rod 152, thereby completing the replacement of different water outlets 156 on the orifice plate 153. The specific replacement method is described in the corresponding paragraph in the manual. Because the orifice plate 153 is divided into three parts, the middle part is the connecting part, and the two sides are functional parts, and they are all semicircular in design, they can be rotated in the arc notch 151 without any obstruction.

[0086] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0087] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure water mist fire extinguishing device for fire fighting on board a ship, comprising a back plate (1) and a shoulder strap (2), characterized in that: The shoulder strap (2) is fixedly connected to the back plate (1); the left side of the back plate (1) is fixedly connected to a water tank (4) via a fixing assembly (3); a mounting frame (5) is provided on the front side of the back plate (1); a fixing frame (6) is rotatably connected to the mounting frame (5) via a bearing in a bearing hole; a spray gun (8) is fixedly connected to the fixing frame (6) via a placement assembly (7); The spray gun (8) is fixedly connected with a pipe (9), and the pipe (9) is fixedly connected with the spray gun (8); the end of the pipe (9) away from the spray gun (8) is fixedly connected with a connecting pipe (10); the pipe (9) is fixedly connected with a shunt pipe (11), the shunt pipe (11) is located above the pipe (9), the shunt pipe (11) is fixedly connected with the top of the connecting pipe (10); the end of the connecting pipe (10) away from the pipe (9) is fixedly connected with a nozzle (12); The connecting pipe (10) is provided with a rotating assembly (13) and a pressurizing assembly (14), and the nozzle (12) is provided with a replacement assembly (15); The rotating component (13) is used to control the periphery of the fire, the pressurizing component (14) is used to pressurize the water flow again to increase the release pressure of the water flow, and the replacement component (15) is used to replace the size of the hole to facilitate switching of different water mist effects.

2. A pressure water mist fire extinguishing device for shipboard firefighting according to claim 1, characterized in that: The rotating assembly (13) comprises: A partition plate (131), wherein the partition plate (131) is fixedly connected to the inner wall of the connecting pipe (10) and is located above the connecting pipe (10), and the flow distribution pipe (11) is located above the partition plate (131); A second partition plate (132), wherein the second partition plate (132) is fixedly connected to the inner wall of the connecting pipe (10) and is located below the first partition plate (131); The center position of the upper surface of the second partition (132) is rotatably connected to a rotating rod (133) through a bearing in a bearing hole, and a plurality of rotating plates (134) are fixedly connected to the rotating rod (133). The first partition (131) is provided with a guide hole (135). An annular through hole (136) is provided on the connecting pipe (10) and located between the first partition (131) and the second partition (132). An annular guide rail (137) is fixedly connected in the annular through hole (136), and an annular slider (138) is slidably connected in the annular guide rail (137). The rotating plate (134) is fixedly connected to the annular slider (138), and the annular slider (138) is provided with a plurality of water outlet through holes (139).

3. A pressure water mist fire extinguishing device for shipboard firefighting according to claim 2, characterized in that: A plurality of fan blades (1310) are fixedly connected to the outer side of the annular sliding block (138); a cavity (1311) is provided in the fan blade (1310), and the cavity (1311) is communicated with the water outlet through hole (139); and through holes are provided on the side and the lower surface of the fan blade (1310) and are fixedly connected with a water outlet nozzle (1312).

4. A pressure water mist fire extinguishing device for shipboard firefighting according to claim 3, characterized in that: The pressurizing component (14) comprises: An annular tube (141), the annular tube (141) is fixedly connected to the inner wall of the connecting tube (10) and is located below the pipeline (9); A water bag (143), the top end of which is fixedly connected to the annular tube (141); The second annular tube (144) is fixedly connected to the inner wall of the connecting tube (10), and the bottom end of the water bag (143) is fixedly connected to the second annular tube (144); An annular plate (145), the annular plate (145) is fixedly connected to the inner wall of the connecting pipe (10), and the annular plate (145) is located outside the water bag (143), an annular groove (146) is provided on the annular plate (145), one end of a plurality of spring rods (147) is fixedly connected in the annular groove (146), the other end of the spring rod (147) is fixedly connected to an arc plate (148), and the arc plate (148) is in contact with the water bag (143).

5. A pressure water mist fire extinguishing device for shipboard firefighting according to claim 4, characterized in that: The pressurizing component (14) also includes: A threaded plate (149), the threaded plate (149) being disposed on the inner wall of the connecting pipe (10) and located below the second annular pipe (144); An hourglass tube (1410) is fixedly connected to the inner wall of a connecting tube (10) and is located below a threaded plate (149); a horizontal plate (1411) is fixedly connected to the lower surface of the hourglass tube (1410); a second rotating rod (1412) is rotatably connected to the upper surface of the horizontal plate (1411) via a bearing in a bearing hole; the top end of the second rotating rod (1412) extends upward to the upper portion of the hourglass tube (1410); a plurality of conical blades (1413) are fixedly connected to the second rotating rod (1412) and located in the lower hourglass tube (1410); and a spiral blade (1414) is fixedly connected to the second rotating rod (133) located at the upper portion of the hourglass tube (1410).

6. A pressure water mist fire extinguishing device for shipboard firefighting according to claim 5, characterized in that: The replacement assembly (15) comprises: Arc-shaped notches (151), the arc-shaped notches (151) are respectively provided on the left and right sides of the nozzle (12), and every two arc-shaped notches (151) form a group, with a total of three groups, and are provided along the Y axis and at equal distances; A shaft rod (152), the shaft rod (152) being fixedly connected at a central position in the arc-shaped notch (151), and the number of the shaft rods (152) being six; An orifice plate (153), wherein a rectangular through hole (154) is formed on the orifice plate (153), a first magnetic attraction sheet (159) is fixedly connected to both left and right sides of the rectangular through hole (154), a second magnetic attraction sheet (155) is fixedly connected to the shaft rod (152), the orifice plate (153) is located in the arc-shaped notch (151), and the shaft rod (152) is located in the rectangular through hole (154), the orifice plate (153) is designed in an hourglass shape, a water outlet (156) is formed on one side of the orifice plate (153), and an arc-shaped through hole (157) is formed on the other side of the orifice plate (153); A magnetic attraction plate three (158), wherein the magnetic attraction plate three (158) is fixedly connected to the left and right sides of the orifice plate (153).

7. A pressure water mist fire extinguishing device for shipboard firefighting according to claim 6, characterized in that: The number of the orifice plates (153) is six, and two orifice plates (153) are arranged in a group in the corresponding arc-shaped notch (151), and two adjacent orifice plates (153) are magnetically attracted by a third magnetic attraction sheet (158).

8. The pressure water mist fire extinguishing device for shipboard firefighting according to claim 1, characterized in that: The fixing assembly (3) comprises a placement plate (31), the upper surface of the placement plate (31) is fixedly connected to a placement seat (32), a silicone pad (33) is fixedly connected inside the placement seat (32), and the left side of the back plate (1) is fixedly connected to a support frame (34); A water tank (4) is provided on the left side of the back plate (1), the water tank (4) is inserted into the placement seat (32) and contacts the silicone pad (33), and the water tank (4) is also in contact with the support frame (34). A pressure valve (16) is fixedly connected to the center position of the upper surface of the water tank (4), and a water inlet pipe (17) and an air inlet pipe (18) are fixedly connected to the back plate (1), respectively, and the ends of the water inlet pipe (17) and the air inlet pipe (18) away from the back plate (1) both penetrate into the water tank (4).

9. A pressure water mist fire extinguishing device for shipboard firefighting according to claim 1, characterized in that: The placement assembly (7) comprises a placement rack (71), the placement rack (71) is fixedly connected to the outer side of the mounting rack (5), a gas cylinder (72) is movably plugged into the placement rack (71), a stop valve (73) is fixedly connected to the port of the gas cylinder (72), a pressure reducing valve (74) is fixedly connected to the stop valve (73), one end of the pressure reducing valve (74) is fixedly connected to the air inlet pipe (18) through a hose 1 (75), and the other end of the pressure reducing valve (74) is fixedly connected to the spray gun (8) through a hose 2 (76), and the spray gun (8) is also fixedly connected to the water inlet pipe (17) through a hose 3 (77).

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