A marine inert gas generator

Abstract

This application discloses a marine inert gas generator, relating to the field of gas generators. It includes a base; a combustion unit mounted on the base, which provides a combustion space; an air inlet pipe mounted on the combustion unit, supplying air to the combustion space; and a main burner mounted on the air inlet pipe, supplying fuel to the combustion space. This application utilizes an air inlet on an auxiliary burner housing to inject compressed air, which, in conjunction with a diesel nozzle and spark plug, generates a torch to ignite the fuel supplied by the main burner and form a main flame. Simultaneously, because multiple auxiliary burners are provided, even if a single auxiliary burner fails to ignite, it does not affect the final formation of the main flame, thus significantly reducing oil pollution and fuel waste caused by ignition failure, and avoiding the problem of excessive oxygen content in the inert gas.

Description

Technical Field

[0001] This application relates to the field of gas generator technology, and in particular to a marine inert gas generator. Background Technology

[0002] Inert gas is a product of the combustion of fuel oil and air at a certain air-fuel ratio. The function of the inert gas generator is to produce inert gas with an oxygen content of no more than 5%, which is then introduced into the upper space of the oil tank to reduce the oxygen content of the air in the oil tank to no more than 8% and maintain a positive pressure state, reaching a level that cannot support combustion, thereby preventing the danger of fire and explosion in the oil tank and improving the safety of the oil tanker.

[0003] In the process of developing this application, the inventors discovered that the technology has at least the following problems: when the spark plug fails due to reasons such as service life, it will cause the main burner to fail to ignite, which will result in a certain amount of oil pollution discharge from the device, resulting in waste, and at the same time, the oxygen content of the inert gas will exceed the standard due to incomplete combustion. Summary of the Invention

[0004] To improve the problem of main burner ignition failure, this application provides a marine inert gas generator.

[0005] The marine inert gas generator provided in this application adopts the following technical solution: include: Base; A combustion unit, mounted on a base, is used to provide a combustion space; An air intake duct is installed on the combustion unit and is used to supply air to the combustion space. The main burner is mounted on the air inlet pipe and is used for fuel supply in the combustion chamber. A plurality of auxiliary burners are mounted on the air inlet pipe and are used to ignite the fuel supplied by the main burner; A cooling unit is connected to the combustion space and provides cooling space for the combustion products. The cooling unit includes a cooling tower, which is detachably mounted on a base. A first connecting pipe is installed on the cooling tower. A spray pipe is rotatably arranged inside the cooling tower and is connected to the first connecting pipe. Several nozzles are installed on the spray pipe. A water inlet unit is connected to the combustion unit and the first connecting pipe, and the water inlet unit is used to transport cooling water. An auxiliary unit is installed on the cooling tower. When the nozzle uses cooling water to cool the combustion products, the auxiliary unit can make the nozzle rotate back and forth and clean the inner wall of the cooling tower.

[0006] By adopting the above technical solution, air and fuel can be supplied and burned in the combustion space to produce inert gas; cooling water can be used to cool the combustion products, and the nozzle can be rotated back and forth to spray cooling water more evenly, while cleaning the inner wall of the cooling tower to avoid the adhesion of impurities and improve the service life of the device.

[0007] Optionally, the combustion unit includes: The housing has one end detachably connected to the air inlet pipe and the other end detachably connected to the cooling unit. Inner shell, which is fixedly connected to the inside of the outer shell; The combustion chamber is located inside the inner shell, and the air inlet pipe, main burner, auxiliary burner, and cooling unit are connected to the combustion chamber. A cooling chamber is formed between the outer shell and the inner shell, and the water inlet unit is connected to the cooling chamber. The water outlet pipe is fixedly installed on the outer casing and is connected to the cooling chamber.

[0008] By adopting the above technical solution, an independent space is provided for combustion. At the same time, the cooling water of the water inlet unit can enter the cooling chamber to cool the inner shell, preventing the inner shell from being corroded by long-term high temperature, thus improving the service life of the device, and also completing the initial cooling of combustion products.

[0009] Optionally, the auxiliary burner includes: A housing, which is mounted on the air inlet duct; The first mounting port is located on the housing and is used to install a spark plug. The second mounting port is formed on the housing and is used to mount a diesel nozzle. An air inlet is provided on the housing and is used to inject compressed air.

[0010] By adopting the above technical solution, compressed air can work with diesel nozzles and spark plugs to generate a torch, which ignites the fuel input to the main burner and forms the main flame. When multiple auxiliary burners are ignited at the same time, the failure of a single burner to ignite does not affect the ignition of the main flame, thereby reducing oil pollution and waste, and lowering the oxygen content.

[0011] Optionally, an air inlet pipe is fixedly connected to the cooling tower, and the air inlet pipe is detachably connected to the outer shell. The air inlet pipe is used to introduce combustion products into the cooling tower. An air outlet pipe is fixedly connected to the cooling tower, and the air outlet pipe is used to output the cooled combustion products. A drain pipe is fixedly connected to the cooling tower, and the drain pipe is used to discharge cooling water. A wire mesh demister is installed inside the cooling tower, and the wire mesh demister is used to remove mist from the combustion products. A second connecting pipe is fixedly connected to the cooling tower, and the second connecting pipe is connected to the water outlet pipe.

[0012] By adopting the above technical solution, the combustion products can be introduced into the cooling tower for cooling, the cooled combustion products can be output and the cooling water can be discharged, the mist in the combustion products can be removed, and the cooling water in the cooling chamber can be used to assist the combustion products in heat dissipation.

[0013] Optionally, the water inlet unit includes: Water inlet pipe, which is used to connect to external cooling water; The first branch pipe has one end fixedly connected to the water inlet pipe and the other end detachably connected to the first connecting pipe. The second branch pipe has one end fixedly connected to the water inlet pipe and the other end detachably connected to the outer casing.

[0014] By adopting the above technical solution, the water inlet pipe can be connected to external cooling water, and the first branch pipe and the second branch pipe are respectively connected to the first connecting pipe and the outer shell, so that the cooling water can be delivered to the cooling chambers of the cooling unit and the combustion unit respectively, thereby achieving effective cooling of the combustion products and the inner shell and ensuring the normal operation of the marine inert gas generator.

[0015] Optionally, the auxiliary unit includes a fixed frame fixedly connected to the cooling tower, and a drive component and a cleaning component are installed on the fixed frame. The drive component can drive the cleaning component to clean the inner wall of the cooling tower while driving the nozzle to rotate.

[0016] By adopting the above technical solution, and using a fixed frame to install the drive assembly and the cleaning assembly, the drive assembly can drive the nozzle to rotate to improve the uniformity of cooling, while the cleaning assembly drives the cleaning assembly to clean the inner wall of the cooling tower, preventing the adhesion of combustion product impurities and ensuring the service life and performance of the device.

[0017] Optionally, the fixing frame has a first transmission cavity inside, and the driving assembly includes: A driving component, which is fixedly connected to a fixed frame; A first gear is disposed in a first transmission cavity, and the driving component is capable of driving the first gear to rotate. A column, which is fixedly connected to the non-axial part of the first gear; A fixing plate is fixedly connected to the nozzle; A first rotating shaft, one end of which is fixedly connected to a fixed plate, and the other end of which extends outside the cooling tower; The frame has one end fixedly connected to the other end of the first rotating shaft, and the other end of the frame extends into the first transmission cavity. The frame has a sliding groove inside, and the column is slidably disposed in the sliding groove.

[0018] By adopting the above technical solution, the driving component drives the first gear to rotate, which in turn drives the eccentrically set column to rotate. The column slides in the frame groove and pushes the frame to swing back and forth. The frame drives the first rotating shaft and the fixing plate to make the spray nozzle rotate back and forth, so that the spray nozzle sprays more evenly and improves the uniformity of cooling.

[0019] Optionally, the driving component is a motor, which is fixedly connected to a fixed frame. The output end of the motor passes through the fixed frame and is coaxially fixedly connected to the first gear.

[0020] By adopting the above technical solution and using a motor as the driving component, the first gear can be stably driven to rotate, thereby driving the entire drive assembly and cleaning assembly to work, ensuring the stable operation of the nozzle reciprocating rotation and the cleaning operation of the cooling tower inner wall.

[0021] Optionally, the cleaning component includes: A fixed rod is fixedly connected inside the cooling tower, and a second transmission cavity is provided inside the fixed rod; The second gear is disposed in the first transmission cavity and meshes with the first gear; The second rotating shaft is coaxially and fixedly connected to the second gear. The second rotating shaft passes through and is rotatably connected to the fixed frame, the cooling tower, and the fixed rod in sequence. The second rotating shaft extends into the second transmission cavity. A first bevel gear is disposed in a second transmission cavity and is fixedly connected to a second rotating shaft. The second bevel gear is disposed in the second transmission cavity and meshes with the first bevel gear; The third rotating shaft is fixedly connected to the second bevel gear, and the third rotating shaft extends out and is rotatably connected to the fixed rod; The rotating rod is fixedly connected to the third rotating shaft; At least one cleaning roller is mounted at the end of a rotating rod and contacts the inner wall of the cooling tower. The cleaning roller is made of a heat-resistant material.

[0022] By adopting the above technical solution, the power of the drive component can be transmitted to the cleaning roller through gear transmission and shaft connection, so that the cleaning roller rotates to clean the inner wall of the cooling tower, thereby preventing impurities in the combustion products from adhering to the inner wall of the cooling tower and improving the service life of the cooling tower.

[0023] Optionally, a gear ring is fixedly connected to the inner wall of the cooling tower, the cleaning roller is rotatably connected to the rotating rod, and a third gear is fixedly connected to the end of the cleaning roller, the third gear meshing with the gear ring.

[0024] By adopting the above technical solution, the cleaning roller can be rotatably connected to the rotating rod, and the third gear at its end meshes with the gear ring on the inner wall of the cooling tower, so that the rotation direction of the cleaning roller is opposite to that of the rotating rod, increasing the contact with the inner wall of the cooling tower, improving the cleaning effect, and ensuring uniform contact with the inner wall to maintain the cleaning effect.

[0025] In summary, this application includes at least one of the following beneficial technical effects: Compressed air is injected through the air inlet on the auxiliary burner housing, which works with the diesel nozzle and spark plug to generate a torch, igniting the fuel and forming the main flame. At the same time, since there are multiple auxiliary burners, the failure of a single auxiliary burner to ignite does not affect the ignition of the main flame, reducing oil pollution caused by unignited fuels, reducing waste, and lowering the oxygen content of the inert gas. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is an overall top view of Embodiment 1 of this application; Figure 2 This is an overall bottom view of Embodiment 1 of this application; Figure 3 This is a cross-sectional view of the combustion unit according to Embodiment 1 of this application; Figure 4 This is a schematic diagram of the auxiliary burner structure according to Embodiment 1 of this application; Figure 5 This is a schematic diagram of the cooling unit structure according to Embodiment 1 of this application; Figure 6 This is a schematic diagram of the auxiliary unit structure of Embodiment 2 of this application; Figure 7 This is a cross-sectional view of the fixing frame according to Embodiment 2 of this application; Figure 8 This is a schematic diagram of the driving component structure according to Embodiment 2 of this application; Figure 9 This is a schematic diagram of the cleaning component structure in Embodiment 2 of this application.

[0028] Reference numerals: 1. Base; 2. Combustion unit; 201. Outer shell; 202. Inner shell; 203. Combustion chamber; 204. Cooling chamber; 205. Water outlet pipe; 3. Air inlet pipe; 4. Main burner; 5. Auxiliary burner; 501. Shell; 502. First mounting port; 503. Second mounting port; 504. Air inlet; 6. Cooling unit; 601. Cooling tower; 602. First connecting pipe; 603. Air inlet pipe; 604. Air outlet pipe; 605. Drain pipe; 606. Wire mesh demister; 607. Second connecting pipe; 608. Nozzle; 609. Nozzle head; 610. Gear ring; 7. Water inlet unit 701, Inlet pipe; 702, First branch pipe; 703, Second branch pipe; 8, Auxiliary unit; 100, Fixing frame; 110, First transmission cavity; 200, Drive assembly; 210, Drive component; 220, First gear; 230, Column; 240, Fixing plate; 250, First rotating shaft; 260, Frame; 300, Cleaning assembly; 310, Fixing rod; 311, Second transmission cavity; 320, Second gear; 330, Second rotating shaft; 340, First bevel gear; 350, Second bevel gear; 360, Third rotating shaft; 370, Rotating rod; 380, Cleaning roller; 390, Third gear. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0030] Example 1: This application discloses a marine inert gas generator.

[0031] Reference Figure 1 The marine inert gas generator includes: a base 1, a combustion unit 2 for providing combustion space, an air inlet duct 3 for air supply, a main burner 4 for fuel supply, several auxiliary burners 5, a cooling unit 6 for cooling combustion products, and a water inlet unit 7 for supplying cooling water. A torch is generated by simultaneously igniting the several auxiliary burners 5, allowing the torches of the auxiliary burners 5 to ignite the fuel in the main burner 4, reducing oil pollution caused by unignited fuel.

[0032] like Figure 1 As shown, the base 1 is rectangular and can be placed on the ground or platform. Its material can be high-strength steel, such as Q345 steel. This type of steel has good strength and toughness and can stably provide installation and support for combustion units, cooling units, etc.

[0033] like Figure 1As shown, the combustion unit 2 is mounted on the base 1. The combustion unit 2 is used to provide the combustion space, specifically, as follows: Figure 3 As shown, the combustion unit 2 includes: outer shell 201, inner shell 202, combustion chamber 203, cooling chamber 204, and water outlet pipe 205.

[0034] The outer shell 201 is bullet-shaped and can be detachably mounted on the base 1 by bolts. Both ends of the outer shell 201 are integrally formed with flanges. One end of the outer shell 201 is detachably connected to the air inlet pipe 3 by bolts and flanges, and the other end of the outer shell 201 is detachably connected to the cooling unit 6 by bolts and flanges. The inner shell 202 is cylindrical and can be made of high-temperature resistant alloy steel, such as chromium-nickel alloy steel, which can withstand the high temperature during combustion. The inner shell 202 is integrally formed and fixedly connected to the inside of the outer shell 201. The combustion chamber 203 is a combustion space with a cylindrical shape. It is located inside the inner shell 202. The air inlet pipe 3, the main burner 4, the auxiliary burner 5, and the cooling unit 6 are connected to the combustion chamber 203. The cooling chamber 204 is approximately bullet-shaped and is located between the outer shell 201 and the inner shell 202. The water inlet unit 7 is connected to the cooling chamber 204, so the cooling water from the water inlet unit 7 can enter the cooling chamber 204 to cool the inner shell 202, preventing the inner shell 202 from being corroded due to prolonged high temperatures during combustion, thus improving the service life of the device. At the same time, the cooling chamber 204 can also perform preliminary cooling of the combustion products. The water outlet pipe 205 is cylindrical and is fixedly installed on the outer shell 201. It is connected to the cooling chamber 204 and is used to output cooling water.

[0035] like Figure 1 As shown, the air inlet duct 3 is approximately circular and is used for air supply in the combustion space. It has a tubular extension with a flange and an air inlet for inputting outside air to complete the air supply. The air inlet duct 3 is detachably connected to the housing 201 by bolts and flange. The air supply mainly consists of a fan and related valves. Based on reliability requirements, two fans, one for use and one for backup, are used to ensure a reliable air supply.

[0036] like Figure 1 As shown, the main burner 4 is approximately cylindrical and is mounted on the air inlet pipe 3. It connects to the inlet and return fuel hoses to supply fuel to the combustion chamber. The main burner 4 is connected to the combustion chamber 203. Marine DMA / DMB diesel fuel is used, and is therefore supplied directly via a gear pump. After pressure regulation by a pressure regulator, the fuel is supplied to the combustion section. Based on reliability requirements, two sets of fuel pumps, one in operation and one on standby, are used to form a fuel supply pump group to provide high-pressure fuel oil. The pressure supply range is 1.7-2.5 MPa, enabling load regulation.

[0037] like Figure 1As shown, several approximately cylindrical auxiliary burners 5 are arranged around the main burner 4. The auxiliary burners 5 are installed on the air inlet pipe 3 and are used to ignite the fuel supplied by the main burner 4. Specifically, as shown... Figure 4 As shown, the auxiliary burner 5 includes: a housing 501, a first mounting port 502, a second mounting port 503, and an air inlet 504.

[0038] The housing 501 is approximately cylindrical and is welded to the air inlet pipe 3 and positioned around the main burner 4. The housing 501 connects to the combustion chamber 203. The first mounting port 502 is circular and is located on the housing 501. The first mounting port 502 is used to install a spark plug, which is used to complete the ignition operation. The second mounting port 503 is circular and is located on the housing 501 near the first mounting port 502. The second mounting port 503 is used to install a diesel injector, which is used to supply fuel. The air inlet 504 is circular and is located on the housing 501. The air inlet 504 is used to inject compressed air, which, in conjunction with the diesel injector and spark plug, generates a torch to ignite the fuel input into the main burner 4 and form the main flame.

[0039] Since there are multiple auxiliary burners 5, when the fuel input to the main burner 4 is ignited, the failure of a single auxiliary burner 5 to ignite does not affect the ignition of the main flame. Therefore, it reduces oil pollution caused by unignition, reduces waste, and lowers the oxygen content.

[0040] like Figure 1 As shown, inert gas supply must not only meet concentration requirements but also be maintained within a certain temperature range; otherwise, it can easily cause an explosion. Considering cost and application, direct seawater spray cooling is adopted. Cooling unit 6 is installed on base 1, and cooling unit 6 is connected to combustion chamber 203, providing cooling space for combustion products. Specifically, as shown... Figure 2 and Figure 5 As shown, the cooling unit 6 includes a cooling tower 601, a first connecting pipe 602, an air inlet pipe 603, an air outlet pipe 604, a drain pipe 605, a wire mesh demister 606, a second connecting pipe 607, a spray pipe 608, and a nozzle 609.

[0041] The cooling tower 601 is detachably mounted on the base 1 by bolts. The cooling tower 601 has an internal cavity that provides cooling space for the combustion products. In the cavity, the high-temperature inert gas and the cooling seawater come into direct contact, and the sulfides are washed away. After cooling, the temperature of the inert gas is a few degrees higher than that of the inlet seawater. A first connecting pipe 602 is fixedly installed on the top of the outer wall of the cooling tower 601. One end of the first connecting pipe 602 is flanged, and the other end is connected to the interior of the cooling tower 601. An air inlet pipe 603 is fixedly connected to the bottom of the outer wall of the cooling tower 601. One end of the air inlet pipe 603 is flanged and is detachably connected to the outer shell 201 by bolts. The air inlet pipe 603 is connected to the interior of the cooling tower 601 and is used to introduce the combustion products into the cavity of the cooling tower 601. A gas outlet pipe 604 is fixedly connected to the top of the outer wall of the cooling tower 601. The gas outlet pipe 604 is used to output the cooled combustion products; such as Figure 2 As shown, a drain pipe 605 is fixedly connected to the bottom of the cooling tower 601. The drain pipe 605 is used to discharge cooling water. A water seal device installed downstream of the drain pipe 605 can release cooling water while preventing the release of inert gas. A wire mesh demister 606 is installed at the top inside the cooling tower 601. The wire mesh demister 606 is used to remove mist from the combustion products, that is, to remove moisture from the mixed gas. Figure 5 As shown, the height of the wire mesh demister 606 should be lower than that of the air outlet pipe 604; A second connecting pipe 607 is fixedly connected to the cooling tower 601. The second connecting pipe 607 is connected to the water outlet pipe 205. The cooling water in the cooling chamber 204 is transported to the second connecting pipe 607 through the water outlet pipe 205 and released into the cavity of the cooling tower 601, which can assist in the heat dissipation of combustion products. The spraying of the second connecting pipe 607 can be achieved by using swirl holes. A spray pipe 608 is rotatably installed inside the cooling tower 601. The spray pipe 608 is rotatably connected to the first connecting pipe 602 through a rotating component, such as a bearing or a rotary joint. The spray pipe 608 is connected to the first connecting pipe 602. Several nozzles 609 are installed on the spray pipe 608.

[0042] The cooling water from the water inlet unit 7 is fed into the cavity of the cooling tower 601 through the first connecting pipe 602 and the second connecting pipe 607 to cool the combustion products, i.e., the inert gas. At the same time, the cooled inert gas is discharged from the outlet pipe 604 after the moisture is removed by the wire mesh demister 606, and the cooling water is discharged through the drain pipe 605.

[0043] like Figure 1 As shown, the water inlet unit 7 is connected to the outer casing 201 and the first connecting pipe 602 respectively. The water inlet unit 7 is used to transport cooling water. Specifically, the water inlet unit 7 includes: water inlet pipe 701, first branch pipe 702 and second branch pipe 703.

[0044] The inlet pipe 701 is a cylindrical pipe with a flange at one end, used to connect to an external water pipe and introduce seawater as cooling water; the first branch pipe 702 is a cylindrical pipe with a flange at one end, which is detachably connected to the first connecting pipe 602 by bolts and flange, and the other end is integrally formed with the inlet pipe 701; the second branch pipe 703 is a cylindrical pipe with a flange at one end, which is detachably connected to the outer shell 201 by bolts and flange, and the other end is integrally formed with the inlet pipe 701.

[0045] Seawater enters the first branch pipe 702 and the second branch pipe 703 through the inlet pipe 701. The seawater in the first branch pipe 702 is sprayed out through the first connecting pipe 602, the nozzle 608 and the nozzle 609 in sequence to cool the combustion products. The seawater in the second branch pipe 703 is sprayed out through the cooling chamber 204, the outlet pipe 205 and the second connecting pipe 607 in sequence to assist in the cooling of the combustion products.

[0046] In Embodiment 1 of this application, the implementation principle of a marine inert gas generator is as follows: Air and fuel are supplied to the combustion chamber 203 through the air inlet pipe 3 and the main burner 4. Simultaneously, compressed air is injected through the air inlet 504 on the casing 501. This, in conjunction with the diesel nozzle and spark plug, generates a torch to ignite the fuel and form the main flame, thereby producing inert gas. Since multiple auxiliary burners 5 are provided, the failure of a single auxiliary burner 5 to ignite does not affect the ignition of the main flame. This also reduces oil pollution caused by unignited fuels, minimizes waste, and lowers the oxygen content. The inert gas enters the cooling tower 601 through the air inlet pipe 603. Simultaneously, seawater enters the first branch pipe 702 and the second branch pipe 703 through the water inlet pipe 701, and is then sprayed out through the nozzle 609 and the second connecting pipe 607 to cool the inert gas. After cooling, the inert gas passes through the wire mesh demister 606 to remove moisture and is output from the air outlet pipe 604. The cooling water is discharged through the drain pipe 605.

[0047] Example 2: The difference between Example 2 and Example 1 is as follows: Figure 2 As shown, an auxiliary unit 8 is installed on the cooling tower 601. When the nozzle 609 uses cooling water to cool the combustion products, the auxiliary unit 8 enables the nozzle 608 to rotate reciprocally and cleans the inner wall of the cooling tower 601. Specifically, as shown... Figure 6 As shown, the auxiliary unit 8 includes a fixed frame 100 fixedly connected to the outer wall of the cooling tower 601. The fixed frame 100 is equipped with a drive assembly 200 and a cleaning assembly 300. The drive assembly 200 can drive the cleaning assembly 300 to clean the inner wall of the cooling tower 601 while driving the nozzle 608 to rotate back and forth.

[0048] like Figure 6As shown, the fixing frame 100 is approximately rectangular, and a first transmission cavity 110, which is approximately rectangular, is opened inside the fixing frame 100.

[0049] like Figure 8 As shown, the drive assembly 200 includes: a drive component 210, a first gear 220, a column 230, a fixing plate 240, a first rotating shaft 250, and a frame 260.

[0050] The driving component 210 is a motor, which is fixedly connected to the mounting bracket 100. The output end of the motor extends through the mounting bracket 100 into the first transmission cavity 110, and is coaxially fixedly connected to the first gear 220. The first gear 220 is disposed in the first transmission cavity 110, and the driving component 210 can drive the first gear 220 to rotate. The column 230 is cylindrical and is installed at a non-axial position of the first gear 220, i.e., eccentrically. The fixing plate 240 is circular. The first rotating shaft 250 is a circular long rod. One end of the first rotating shaft 250 is fixedly connected to the fixing plate 240, and the other end of the first rotating shaft 250 passes through the cooling tower 601 and extends to the outside of the cooling tower 601. The frame 260 is approximately rectangular. One end of the frame 260 is fixedly connected to the other end of the first rotating shaft 250, and the other end of the frame 260 extends into the first transmission cavity 110. A rectangular sliding groove is provided inside the frame 260, and the column 230 is slidably set in the sliding groove.

[0051] When the motor drives the first gear 220 to rotate, the first gear 220 drives the column 230 to rotate eccentrically. Simultaneously, the column 230 slides in the groove and pushes the frame 260 to swing back and forth. The frame 260 drives the first rotating shaft 250 to rotate back and forth. The first rotating shaft 250 drives the fixed plate 240 to rotate back and forth. The fixed plate 240 drives the nozzle 608 to rotate back and forth. The nozzle 608 drives the nozzle 609 to swing, thereby making the seawater spray from the nozzle 609 more uniform and improving the uniformity of cooling.

[0052] It should be emphasized that if the distance between the column 230 and the axis of the first gear 220 is changed, the swing amplitude of the column 230 pushing the frame 260 will change synchronously, thereby changing the swing amplitude of the nozzle 609, which can be applied to cooling towers 601 of different sizes, thus improving the applicability of the device.

[0053] like Figure 9 As shown, the cleaning assembly 300 includes: a fixed rod 310, a second gear 320, a second rotating shaft 330, a first bevel gear 340, a second bevel gear 350, a third rotating shaft 360, a rotating rod 370, and two cleaning rollers 380.

[0054] The fixed rod 310 is rectangular and is fixedly connected to the cooling tower 601. A square second transmission cavity 311 is formed inside the fixed rod 310. A second gear 320 is installed in the first transmission cavity 110, meshing with the first gear 220. The diameter of the second gear 320 is larger than that of the first gear 220. A second rotating shaft 330 is a long, circular rod, coaxially fixedly connected to the second gear 320. The second rotating shaft 330 passes through and is rotatably connected to the fixed frame 100, the cooling tower 601, and the fixed rod 310 in sequence. One end of the second rotating shaft 330 extends into the second transmission cavity 311. A first bevel gear 340 is installed in the second transmission cavity 311, and is fixedly connected to one end of the second rotating shaft 330. The second transmission cavity 311 is also equipped with a second bevel gear 350, which meshes with the first bevel gear 340. The diameter of the second bevel gear 350 can be set to be larger than that of the first bevel gear 340. The third rotating shaft 360 is a round rod, which is fixedly connected to the second bevel gear 350. The third rotating shaft 360 passes through the fixed rod 310 and is rotatably connected to the fixed rod 310. The rotating rod 370 is rectangular, and is fixedly connected to one end of the third rotating shaft 360 that passes through the fixed rod 310. The two cleaning rollers 380 are cylindrical, and can be fixedly installed at the ends of the rotating rod 370. The cleaning rollers 380 are in contact with the inner wall of the cooling tower 601. The cleaning rollers 380 are made of heat-resistant material, such as heat-resistant alloy steel or ceramic material.

[0055] When the first gear 220 drives the second gear 320 to rotate, the second gear 320 drives the second rotating shaft 330 to rotate, the second rotating shaft 330 drives the first bevel gear 340 to rotate, the first bevel gear 340 drives the second bevel gear 350 to rotate, the second bevel gear 350 drives the third rotating shaft 360 to rotate, the third rotating shaft 360 drives the rotating rod 370 to rotate, and the rotating rod 370 drives the cleaning roller 380 to rotate. This completes the cleaning operation on the inner wall of the cooling tower 601, preventing impurities in the combustion products from adhering to the inner wall of the cooling tower 601 and reducing the service life of the cooling tower 601.

[0056] like Figure 9 As shown, in order to improve the service life and cleaning effect of the cleaning roller 380, in a further embodiment, a gear ring 610 is fixedly connected to the inner wall of the cooling tower 601. The gear ring 610 can be made of stainless steel with excellent corrosion resistance and high temperature resistance, such as 304 or 316 stainless steel. The cleaning roller 380 and the rotating rod 370 can be configured to be rotatably connected. A third gear 390 is fixedly connected to the top of the cleaning roller 380. The third gear 390 meshes with the gear ring 610. The material selection of the third gear 390 is similar to that of the gear ring 610.

[0057] When the rotating rod 370 drives the third gear 390 to rotate, the third gear 390, through the gear ring 610, drives the cleaning roller 380 to rotate in the opposite direction to the rotating rod 370. In this way, the cleaning roller 380 can make more contact with the inner wall of the cooling tower 601 within a certain period of time compared to a design where the cleaning roller 380 is fixed to the rotating rod 370, resulting in a better cleaning effect on the inner wall of the cooling tower 601. Furthermore, when the cleaning roller 380 is fixed to the rotating rod 370, the contact surface with the inner wall of the cooling tower 601 remains unchanged, which is prone to wear and tear over long-term operation, reducing the cleaning effect. In this design, the cleaning roller 380 can make uniform contact with the inner wall of the cooling tower 601 during rotation, maintaining a cleaning effect for a longer period.

[0058] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0059] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A marine inert gas generator, characterized in that, include: Base (1); Combustion unit (2), which is mounted on base (1), is used to provide combustion space; Air inlet pipe (3), which is installed on the combustion unit (2), is used for air supply in the combustion space; The main burner (4) is installed on the air inlet pipe (3) and is used for fuel supply in the combustion space; A number of auxiliary burners (5) are installed on the air inlet pipe (3) and are used to ignite the fuel supplied by the main burner (4); A cooling unit (6) is connected to the combustion space and provides a cooling space for the combustion products. The cooling unit (6) includes a cooling tower (601), which is detachably mounted on a base (1). A first connecting pipe (602) is installed on the cooling tower (601). A nozzle (608) is rotatably arranged inside the cooling tower (601). The nozzle (608) is connected to the first connecting pipe (602). A plurality of nozzles (609) are installed on the nozzle (608). Water inlet unit (7), which is connected to combustion unit (2) and first connecting pipe (602) respectively, and is used to transport cooling water; An auxiliary unit (8) is installed on a cooling tower (601). When the nozzle (609) uses cooling water to cool the combustion products, the auxiliary unit (8) can make the nozzle (608) rotate back and forth and clean the inner wall of the cooling tower (601).

2. The marine inert gas generator according to claim 1, characterized in that, The combustion unit (2) includes: The outer casing (201) is detachably connected at one end to the air inlet pipe (3) and at the other end to the cooling unit (6); Inner shell (202), which is fixedly connected to the inside of outer shell (201); Combustion chamber (203) is located inside the inner shell (202). The air inlet pipe (3), main burner (4), auxiliary burner (5), and cooling unit (6) are connected to the combustion chamber (203). The cooling chamber (204) is located between the outer shell (201) and the inner shell (202), and the water inlet unit (7) is connected to the cooling chamber (204). Water outlet pipe (205) is fixedly installed on the outer shell (201) and is connected to the cooling chamber (204).

3. The marine inert gas generator according to claim 2, characterized in that, The auxiliary burner (5) includes: Housing (501), which is mounted on the air inlet pipe (3); The first mounting port (502) is opened on the housing (501) and is used to install a spark plug; The second mounting port (503) is opened on the housing (501) and is used to install a diesel nozzle; An air inlet (504) is provided on the housing (501) and is used to inject compressed air.

4. The marine inert gas generator according to claim 2, characterized in that, An air inlet pipe (603) is fixedly connected to the cooling tower (601), and the air inlet pipe (603) is detachably connected to the outer shell (201). The air inlet pipe (603) is used to introduce combustion products into the cooling tower (601). An air outlet pipe (604) is fixedly connected to the cooling tower (601), and the air outlet pipe (604) is used to output the cooled combustion products. A drain pipe (605) is fixedly connected to the cooling tower (601), and the drain pipe (605) is used to discharge cooling water. A wire mesh demister (606) is installed inside the cooling tower (601), and the wire mesh demister (606) is used to remove mist from the combustion products. A second connecting pipe (607) is fixedly connected to the cooling tower (601), and the second connecting pipe (607) is connected to the water outlet pipe (205).

5. The marine inert gas generator according to claim 4, characterized in that, The water inlet unit (7) includes: Water inlet pipe (701), the water inlet pipe (701) is used to connect to external cooling water; The first branch pipe (702) has one end fixedly connected to the water inlet pipe (701) and the other end detachably connected to the first connecting pipe (602). The second branch pipe (703) has one end fixedly connected to the water inlet pipe (701) and the other end detachably connected to the outer casing (201).

6. The marine inert gas generator according to claim 5, characterized in that, The auxiliary unit (8) includes a fixed frame (100) fixedly connected to the cooling tower (601). The fixed frame (100) is equipped with a drive assembly (200) and a cleaning assembly (300). The drive assembly (200) can drive the cleaning assembly (300) to clean the inner wall of the cooling tower (601) while driving the nozzle (608) to rotate.

7. The marine inert gas generator according to claim 6, characterized in that, The fixed frame (100) has a first transmission cavity (110) inside, and the drive assembly (200) includes: A driving component (210) is fixedly connected to a mounting bracket (100); The first gear (220) is disposed in the first transmission cavity (110), and the driving member (210) can drive the first gear (220) to rotate; A column (230) is fixedly connected to the non-axial part of the first gear (220); A fixing plate (240) is fixedly connected to the nozzle (608); A first rotating shaft (250) is fixedly connected at one end to a fixed plate (240), and the other end of the first rotating shaft (250) extends to the outside of the cooling tower (601); A frame (260) is fixedly connected at one end to the other end of a first rotating shaft (250), and the other end of the frame (260) extends into a first transmission cavity (110). A sliding groove is provided inside the frame (260), and the column (230) is slidably disposed in the sliding groove.

8. The marine inert gas generator according to claim 7, characterized in that, The driving component (210) is a motor, which is fixedly connected to the fixed frame (100). The output end of the motor passes through the fixed frame (100) and is coaxially fixedly connected to the first gear (220).

9. The marine inert gas generator according to claim 7, characterized in that, The cleaning component (300) includes: A fixing rod (310) is fixedly connected inside the cooling tower (601), and a second transmission cavity (311) is provided inside the fixing rod (310). The second gear (320) is disposed in the first transmission cavity (110) and meshes with the first gear (220); The second rotating shaft (330) is coaxially and fixedly connected to the second gear (320). The second rotating shaft (330) passes through and is rotatably connected to the fixed frame (100), the cooling tower (601), and the fixed rod (310) in sequence. The second rotating shaft (330) extends into the second transmission cavity (311). The first bevel gear (340) is disposed in the second transmission cavity (311) and is fixedly connected to the second rotating shaft (330); The second bevel gear (350) is disposed in the second transmission cavity (311) and meshes with the first bevel gear (340); The third rotating shaft (360) is fixedly connected to the second bevel gear (350), and the third rotating shaft (360) extends out and is rotatably connected to the fixed rod (310); Rotating rod (370), which is fixedly connected to the third rotating shaft (360); At least one cleaning roller (380) is mounted on the end of a rotating rod (370) and is in contact with the inner wall of the cooling tower (601). The cleaning roller (380) is made of a heat-resistant material.

10. The marine inert gas generator according to claim 9, characterized in that, A gear ring (610) is fixedly connected to the inner wall of the cooling tower (601). The cleaning roller (380) is rotatably connected to the rotating rod (370). A third gear (390) is fixedly connected to the end of the cleaning roller (380). The third gear (390) meshes with the gear ring (610).

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