Inert gas generator cooling system for ships with heat recovery

Abstract

The application discloses a marine inert gas generating device cooling system with heat recovery and relates to the technical field of energy-saving heat exchange equipment. The system comprises two connecting plates, a linkage energy-saving assembly arranged on the outer surface of the connecting plates and used for saving power consumption, a U-shaped plate, a support and a planet carrier. The inner surface wall of the support is provided with a bearing, the inner surface wall of the bearing is provided with a driving shaft, the outer surface of the driving shaft is fixedly provided with a rotating impeller, the linkage energy-saving assembly can stably provide seawater conveying power during long-time navigation of the ship, the electric power driving of the electric water pump is not needed in the whole process, continuous power output generated by the auxiliary machine of the ship for maintaining the operation of the water pump is effectively avoided, fuel consumption is reduced, fuel procurement cost is lowered, continuous expenditure related to energy consumption is reduced, and the overall operation cost of the ship is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy-saving heat exchange equipment, in particular to a marine inert gas generating device cooling system with heat recovery. BACKGROUND

[0002] In the field of ship transportation, the inert gas generating device is one of the core equipment to ensure the safe operation of special ships such as oil tankers and chemical tankers. It generates inert gas, which is a mixture of ammonia and carbon dioxide, and fills the cargo hold to reduce the oxygen concentration in the hold, thereby effectively suppressing the risk of combustion and explosion of flammable cargo.

[0003] When the device is running, a large amount of waste heat will be generated in the process of fuel combustion and gas compression, which will cause the internal temperature of the system to rise sharply. If this heat cannot be quickly removed through the cooling system, it will not only reduce the efficiency of the device and shorten its service life, but also may cause equipment failure due to high temperature, directly threatening the safety of ship navigation. Therefore, in order to protect the normal operation of the device, the inert gas needs to be cooled through the cooling system, which makes the inert gas generating device cooling system necessary.

[0004] However, the existing marine inert gas generating device cooling system with heat recovery has the following shortcomings:

[0005] From the above content, it can be concluded that the cooling system cools the gas generating device to ensure the continuous operation of the generating device. The traditional cooling equipment relies on the power provided by the generating device. In the power supply system of the ship, whether it is relying on the main engine driven generator or through the auxiliary generator set independent power supply, the energy source is dependent on fuel consumption.

[0006] The most significant problem of this method is that the ship power system is composed of main engine generator set and auxiliary generator set. The main engine set undertakes the propulsion task, and the auxiliary generator set drives the gas generating device, cooling equipment and other equipment. Both of them rely on fuel operation. The operation of the cooling equipment will increase the load of the gas generating device, leading to the increase of oil consumption of the auxiliary generator set. After the energy consumption of the main engine set is added, the oil consumption of the whole ship increases significantly. This not only makes the fuel procurement cost high for a long time, but also causes energy waste due to energy redundancy, which does not meet the requirements of ship energy saving and consumption reduction.

[0007] Therefore, we propose a marine inert gas generating device cooling system with heat recovery to solve the problems mentioned above. SUMMARY

[0008] The purpose of the present application is to provide a marine inert gas generating device cooling system with heat recovery, which can save power consumption.

[0009] To achieve the above object, the present application provides the following technical scheme: a marine inert gas generating device cooling system with heat recovery, comprising: two groups of connecting plates;

[0010] The linkage energy-saving assembly is arranged on the outer surface of the connecting plate, and is used for saving power consumption.

[0011] The linkage energy-saving assembly comprises a U-shaped plate, a support and a planet carrier, the inner surface wall of the support is provided with a bearing, the inner surface wall of the bearing is provided with a driving shaft, the outer surface of the driving shaft is fixedly provided with a rotating impeller, the rotating impeller is used to push fluid when rotating, the outer surface of the support is fixedly provided with a streamlined fairing, the streamlined fairing is used to guide and accelerate the flow of water, the inner surface wall of the streamlined fairing is fixedly provided with a filter plate, and the filter plate is used to filter seaweed.

[0012] One end of the driving shaft is fixedly connected with the outer surface of the planet carrier, a plurality of rotating rods are fixedly connected with the outer surface of the planet carrier in an array, one end of each of the plurality of rotating rods is fixedly connected with a planet gear, and the outer surfaces of the plurality of planet gears are meshingly connected with a fixed gear ring.

[0013] Preferably, the outer surface of the fixed gear ring is fixedly connected with a support frame, the support frame is used to support and stabilize the fixed gear ring, the outer surface of the support frame is fixedly connected with the inner surface wall of the U-shaped plate, and the outer surfaces of the plurality of planet gears are meshingly connected with a sun gear.

[0014] Preferably, the inner surface wall of the sun gear is fixedly connected with an output shaft, the outer surface of the output shaft is fixedly provided with an impeller water pump, the impeller water pump is used to push water to flow and increase water pressure, and the bottom of the impeller water pump is fixedly provided with a base.

[0015] Preferably, the base is used to support and stabilize the impeller water pump, the outer surface of the base is fixedly connected with the inner surface wall of the U-shaped plate, and the bottom of the impeller water pump is fixedly communicated with a water inlet.

[0016] Preferably, the top of the impeller water pump is fixedly communicated with a water delivery pipe, the water delivery pipe is used as a liquid delivery channel, the outer surface of the support is fixedly connected with the inner surface wall of the U-shaped plate, and the outer surfaces of the two groups of connecting plates are fixedly connected with the outer surface of the U-shaped plate.

[0017] Preferably, the top of the impeller water pump is fixedly communicated with a water delivery pipe, the water delivery pipe is used as a liquid delivery channel, the outer surface of the support is fixedly connected with the inner surface wall of the U-shaped plate, and the outer surfaces of the two groups of connecting plates are fixedly connected with the outer surface of the U-shaped plate.

[0017] Preferably, the top of the two groups of connecting plates is provided with a liquid cooling assembly, and the liquid cooling assembly is used to reduce the temperature of the inert gas.

[0018] The liquid cooling assembly comprises a fixing plate, a cooling tank and an air inlet pipe, the inside of the cooling tank is divided into a flow interlayer for the internal flow of seawater, an inner container is fixedly installed at the inner bottom of the cooling tank, the inside of the inner container is divided into an air interlayer for the internal flow of inert gas, the outer surface of the inner container is provided with a graphene heat conduction layer for conducting the heat of the inert gas.

[0019] Preferably, the outer surface of the graphene heat conduction layer is provided with a spiral flow guide groove for guiding the flow of seawater, the bottom of the cooling tank is fixedly installed with a support column for supporting the fixed cooling tank, and the bottom of the support column is fixedly connected with the top of the fixing plate.

[0020] Preferably, the top of the fixing plate is fixedly connected with a fixing frame, a clamping groove is formed at the position close to the center of the top of the fixing frame, a micro cooling fan is fixedly installed on the inner surface wall of the clamping groove, the micro cooling fan is used for preliminary cooling of the inert gas, and heat dissipation fins are fixedly installed on the outer surfaces of the two sides of the fixing frame, the heat dissipation fins are used for enhancing the cooling effect of the inert gas.

[0021] Preferably, a storage battery is fixedly installed at the top of the fixing frame, the storage battery is used for providing power for the micro cooling fan, a drain pipe is fixedly communicated with the bottom of the cooling tank, one end of the drain pipe slidably penetrates through the top of the fixing plate and extends to the lower side, and one end of the air inlet pipe is fixedly communicated with the outer surface of the cooling tank at a position close to the upper side.

[0022] Preferably, a thermoelectric power generation module is fixedly installed at the top of the fixing plate, an exhaust pipe is fixedly communicated with the bottom of the inner container, one end of the exhaust pipe slidably penetrates through the inner bottom of the cooling tank and extends to the lower side, one end of a water delivery pipe slidably penetrates through the bottom of the fixing plate and extends to the upper side, one end of the water delivery pipe is fixedly communicated with the top of the cooling tank, and the tops of the two groups of connecting plates are fixedly connected with the bottom of the fixing plate.

[0023] Compared with the prior art, the present application has the following advantages:

[0024] 1. In the application, the linkage energy-saving assembly is arranged to realize efficient recovery and utilization of water flow energy, greatly reducing energy consumption. The effect solves the energy consumption problem of the ship power system. When the ship is sailing, the natural water flow at the bottom of the bow is gathered into a high-speed jet through the streamlined fairing, impacting the rotating impeller to convert the water flow energy into mechanical rotary kinetic energy without additional energy driving. After the kinetic energy is amplified by the planetary gear speed increasing mechanism, the impeller water pump is directly driven to run, replacing the power input of the electric water pump throughout the process. This process reduces the power output demand of the auxiliary generator set from the root. Since the cooling equipment no longer relies on the electric water pump, the gas generating device load is reduced, and the auxiliary unit does not need to consume additional energy to maintain the water pump operation. At the same time, the main unit also avoids the hidden energy consumption caused by the superimposed power demand, and the whole ship energy consumption superposition phenomenon is significantly alleviated. In the long-term sailing of the ship, the system stably replaces the electric water pump to work, continuously reducing the fuel consumption of the power production link, greatly reducing the fuel purchase cost, and achieving sustainable energy saving by reducing energy waste.

[0025] 2. In the application, the liquid cooling assembly is arranged to realize efficient cooling and energy-saving operation. The high-temperature inert gas is first delivered to the fixed frame area through the inlet pipe. The micro cooling fan powered by the battery generates directional airflow, and the heat dissipation fins realize preliminary cooling through heat conduction. The preliminarily cooled gas enters the inner container. The graphene heat conduction layer on the outer wall of the inner container quickly conducts heat to the outer flowing interlayer through ultra-high thermal conductivity. The low-temperature seawater delivered by the linkage energy-saving assembly flows along the spiral guide groove in a spiral trajectory, and the heat exchange efficiency is greatly improved through the extension of the path and the disturbance of the groove wall. The seawater absorbing heat is discharged through the drain pipe, and the outer wall of the drain pipe is in contact with the hot end of the thermoelectric module. The cold end of the module is maintained at low temperature by low-temperature seawater to form a temperature difference. The generated electric energy is rectified and stored in the battery to meet the power demand of the micro cooling fan, realizing self-powered operation of the fan. Finally, the cooled gas is discharged from the exhaust pipe, and its temperature is stably reduced to a safe range, avoiding the safety hidden danger caused by high-temperature environment in the closed space of the ship cargo hold, thereby ensuring the long-term stable operation of the inert gas generating device and the conveying system, and prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A front view structure perspective view of the ship inert gas generating device cooling system with heat recovery is provided for the application;

[0027] Figure 2 A front view structure perspective view of the ship inert gas generating device cooling system with heat recovery is provided for the application; Figure 1 A front view structure perspective view of the ship inert gas generating device cooling system with heat recovery is provided for the application;

[0028] Figure 3 A front view structure perspective view of the ship inert gas generating device cooling system with heat recovery is provided for the application;

[0029] Figure 4The application provides a linkage energy-saving component structure amplification perspective view in a cooling system of a marine inert gas generating device with heat recovery.

[0030] Figure 5 The application provides a liquid cooling component structure amplification perspective view in a cooling system of a marine inert gas generating device with heat recovery.

[0031] Figure 6 The application provides a cooling tank internal connection structure section view in a cooling system of a marine inert gas generating device with heat recovery.

[0032] Figure 7 The application provides a fixing frame connection structure amplification perspective view in a cooling system of a marine inert gas generating device with heat recovery.

[0033] In the figure: 1, connecting plate; 200, linkage energy-saving component; 201, U-shaped plate; 202, support; 203, bearing; 204, driving shaft; 205, rotating impeller; 206, streamlined fairing; 207, filter plate; 208, planet carrier; 209, rotating rod; 210, planet wheel; 211, fixed gear ring; 212, support frame; 213, sun gear; 214, output shaft; 215, impeller water pump; 216, base; 217, water inlet; 218, water delivery pipe; 300, liquid cooling component; 301, fixed plate; 302, cooling tank; 303, flow sandwich; 304, inner container; 305, air sandwich; 306, graphene heat conduction layer; 307, spiral flow guide groove; 308, support column; 309, fixing frame; 310, clamping groove; 311, micro heat dissipation fan; 312, heat dissipation fin; 313, storage battery; 314, drain pipe; 315, air inlet pipe; 316, thermoelectric power generation module; 317, exhaust pipe. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0035] As shown in Figure 1 - Figure 5 and Figure 7 shown: the cooling system of the marine inert gas generating device with heat recovery, comprising: two groups of connecting plates 1;

[0036] The linkage energy-saving component 200 is arranged on the outer surface of the connecting plate 1, and the linkage energy-saving component 200 is used for saving power consumption.

[0037] The linkage energy-saving assembly 200 comprises a U-shaped plate 201, a support 202, and a planet carrier 208, the inner surface wall of the support 202 is provided with a bearing 203, the inner surface wall of the bearing 203 is provided with a driving shaft 204, the outer surface of the driving shaft 204 is fixedly installed with a rotating impeller 205, the rotating impeller 205 is used for pushing fluid when rotating, the outer surface of the support 202 is fixedly installed with a streamlined fairing 206, the streamlined fairing 206 is used for guiding flow to accelerate the flow of water, the inner surface wall of the streamlined fairing 206 is fixedly installed with a filter plate 207, and the filter plate 207 is used for filtering seaweed.

[0038] One end of the driving shaft 204 is fixedly connected with the outer surface of the planet carrier 208, a plurality of groups of rotating rods 209 are fixedly connected in array on the outer surface of the planet carrier 208, one end of each of the plurality of groups of rotating rods 209 is fixedly connected with a planet wheel 210, the outer surfaces of the plurality of groups of planet wheels 210 are meshingly connected with a fixed gear ring 211, the outer surface of the fixed gear ring 211 is fixedly connected with a support frame 212, the support frame 212 is used for supporting and stabilizing the fixed gear ring 211, the outer surface of the support frame 212 is fixedly connected with the inner surface wall of the U-shaped plate 201, the outer surfaces of the plurality of groups of planet wheels 210 are meshingly connected with a sun gear 213, the inner surface wall of the sun gear 213 is fixedly connected with an output shaft 214, the outer surface of the output shaft 214 is fixedly installed with an impeller water pump 215, the impeller water pump 215 is used for pushing water to flow and increasing water pressure, the bottom of the impeller water pump 215 is fixedly installed with a base 216, the base 216 is used for supporting and stabilizing the impeller water pump 215, the outer surface of the base 216 is fixedly connected with the inner surface wall of the U-shaped plate 201, the bottom of the impeller water pump 215 is fixedly communicated with a water inlet 217, the top of the impeller water pump 215 is fixedly communicated with a water delivery pipe 218, the water delivery pipe 218 is used for a liquid delivery channel, the outer surface of the support 202 is fixedly connected with the inner surface wall of the U-shaped plate 201, and the outer surfaces of the two groups of connecting plates 1 are fixedly connected with the outer surface of the U-shaped plate 201.

[0039] The effect achieved by the whole embodiment 1 is that during the ship sailing, the cooling system realizes energy-saving cooling through mechanical linkage and water flow power recovery. First, the connecting plate 1 is made of duplex stainless steel plate, which has high strength and seawater corrosion resistance. The outer surface is rigidly fixed to the load-bearing steel structure at the bottom of the bow of the ship through high-strength bolts, which ensures stable installation of the system under complex conditions such as ship pitching and sea wave impact, avoids loosening of parts due to vibration, and the inner side of the connecting plate 1 is fixed with a U-shaped plate 201 through welding. The U-shaped plate 201 is made of 316L stainless steel bending and forming, which is used as the overall support frame of the linkage energy-saving assembly 200, providing a stable installation reference for subsequent water flow driving, power transmission and water pump unit, ensuring the coaxiality and transmission accuracy of each part. At this time, the water flow at the bottom of the bow of the ship naturally flows in when the ship is sailing. The seawater first enters the streamlined fairing 206, which is made of titanium alloy and integrally formed. The inner wall is designed as a tapered streamline structure, which reduces water flow resistance by using fluid mechanics principles, and at the same time, the dispersed water flow is gathered to form a directional high-speed jet. After rectification by the fairing, the rotating impeller 205 inside the fairing is accurately impacted. To avoid the impeller 205 being entangled or damaged by seaweed, shells, sand and other impurities carried by seawater, the inner wall of the inlet end of the fairing is fixed with a filter plate 207 through bolts. The filter plate 207 is made of thick stainless steel mesh, with a mesh diameter of 5 mm, which can intercept impurities with a diameter greater than 5 mm. Under the impact of high-speed water flow, the rotating impeller 205 starts to rotate. The impeller is made of brass, and the blades are designed as rear bending type, which can efficiently convert water flow kinetic energy into mechanical rotary kinetic energy. The rotating impeller 205 is connected with the drive shaft 204, and the drive shaft 204 rotates synchronously to transmit the rotary power to the planetary gear speed-up unit. The rear end of the drive shaft 204 is fixedly connected with the planetary carrier 208 through a flange, which drives the planetary carrier 208 to rotate synchronously. The planetary carrier 208 is made of aluminum alloy forgings, and its outer surface is uniformly distributed with 3 groups of rotating rods 209. The end of each group of rotating rods 209 is installed with a planetary gear 210 through a bearing 203. Since the outer surface of the planetary gear 210 is meshed with the inner teeth of the fixed gear ring 211, and the fixed gear ring 211 is fixed with the U-shaped plate 201 through the support frame 212, the planetary gear 210 moves along the fixed gear ring 211 under the drive of the planetary carrier 208. When it revolves around the central axis with the planetary carrier 208, it rotates the sun gear 213 through intermeshing when it rotates itself. The number of inner teeth of the fixed gear ring 211 is 60, and the number of teeth of the sun gear 213 is 20. Through gear transmission ratio design, the sun gear 213 can rotate at high speed, and the high-speed rotary power is transmitted to the impeller water pump 215 through the fixedly connected output shaft 214. The output shaft 214 and the input shaft of the impeller water pump 215 are fixedly connected through a shaft coupling. The high-speed rotating output shaft 214 directly drives the water pump impeller to rotate. The impeller water pump 215 at the top of the base 216 adopts a single-stage centrifugal pump structure. The pump body is made of cast iron, and the impeller is made of bronze, which can resist seawater corrosion. In the rotating process, the seawater is pumped and pressurized by using the principle of centrifugal force.The water pump draws in the replenishment seawater through the water inlet 217 at the bottom, and the centrifugal force generated by the rotation of the water pump impeller throws the seawater from the center of the impeller to the edge, converting the kinetic energy into pressure energy in the pump shell, pressurizing the seawater outlet, and stably conveying the pressurized seawater to the heat recovery system of the marine inert gas generating device through the water pipe 218 at the top, providing a continuous low-temperature seawater medium for inert gas cooling. When the ship is approaching the shore (the sailing speed is reduced to below 5 knots), the flow energy introduced by the streamlined fairing 206 is insufficient due to the reduction of water flow speed, the rotating impeller 205 speed is reduced, and the output shaft 214 speed after planetary gear speed increase still cannot meet the high efficient operation requirement of the impeller water pump 215, at this time, the small electric backup water pump can be started, the water pressure and flow in the water pipe are maintained by supplementing the seawater, and the heat recovery system of the inert gas generating device is ensured to run continuously and cool, under the continuous linkage of the energy-saving assembly 200, the seawater conveying power can be stably provided during the long-time sailing of the ship, and the electric water pump does not need to rely on the power drive, which effectively avoids the continuous output of the power generated by the auxiliary machine of the ship to maintain the operation of the water pump, thereby not only reducing the fuel consumption and the fuel procurement cost, but also reducing the overall operating cost of the ship by reducing the continuous expenditure related to energy consumption.

[0040] Example 2, as shown in Figure 1 and Figure 6 and Figure 7 The top of the two groups of connecting plates 1 is provided with a liquid cooling assembly 300 for reducing the temperature of the inert gas.

[0041] The liquid cooling assembly 300 comprises a fixing plate 301, a cooling tank 302, and an air inlet pipe 315, the inside of the cooling tank 302 is divided into a flow interlayer 303 for internal flow of seawater, the inner bottom of the cooling tank 302 is fixedly installed with an inner container 304, the inside of the inner container 304 is divided into an air interlayer 305 for internal flow of inert gas, the outer surface of the inner container 304 is provided with a graphene heat conduction layer 306 for heat conduction of the inert gas, the outer surface of the graphene heat conduction layer 306 is provided with a spiral flow guide groove 307 for flow guide of seawater, the bottom of the cooling tank 302 is fixedly installed with a support column 308 for supporting and fixing the cooling tank 302, the bottom of the support column 308 is fixedly connected with the top of the fixing plate 301, the top of the fixing plate 301 is fixedly connected with a fixing frame 309, the top of the fixing frame 309 is provided with a clamping groove 310 near the center, the inner surface wall of the clamping groove 310 is fixedly installed with a micro cooling fan 311 for preliminary cooling of the inert gas, the outer surfaces of the two sides of the fixing frame 309 are both fixedly installed with a cooling fin 312 for enhancing the cooling effect of the inert gas, the top of the fixing frame 309 is fixedly installed with a storage battery 313 for providing power for the micro cooling fan 311, the bottom of the cooling tank 302 is fixedly communicated with a drain pipe 314, one end of the drain pipe 314 slidably penetrates through the top of the fixing plate 301 and extends to the lower side, one end of the air inlet pipe 315 is fixedly communicated with the outer surface of the cooling tank 302 near the upper side, the top of the fixing plate 301 is fixedly installed with a thermoelectric power generation module 316, the bottom of the inner container 304 is fixedly communicated with an exhaust pipe 317, one end of the exhaust pipe 317 slidably penetrates through the inner bottom of the cooling tank 302 and extends to the lower side, one end of the water conveying pipe 218 slidably penetrates through the bottom of the fixing plate 301 and extends to the upper side, one end of the water conveying pipe 218 is fixedly communicated with the top of the cooling tank 302, and the tops of the two groups of connecting plates 1 are fixedly connected with the bottom of the fixing plate 301.

[0042] The effect achieved by the whole embodiment 2 is that the high-temperature inert gas (temperature 600-800 DEG C) generated by the ship inert gas generating device is first delivered to the fixed frame 309 area through the air inlet pipe 315 after being extracted, at this time, the battery 313 at the top of the fixed plate 301 supplies power to the micro cooling fan 311, so that the micro cooling fan 311 in the clamping groove 310 generates directional airflow blowing to the high-temperature gas, at the same time, the heat dissipation fin 312 spreads the heat of the gas in the air inlet pipe 315 to the air by heat conduction, so as to realize preliminary cooling, reduce the temperature of the inert gas to 400-500 DEG C, reduce the subsequent liquid cooling burden, and the inert gas after preliminary cooling enters the inner container 304 through the air inlet pipe 315, flows in the air layer 305, the graphene heat conduction layer 306 on the outer wall of the inner container 304 quickly conducts the heat of the gas to the outside flowing layer 303 by virtue of the super-high thermal conductivity, at this time, the water delivery pipe 218 of the linkage energy-saving assembly 200 continuously delivers low-temperature seawater to the flowing layer 303, the seawater flows downward along the spiral flow guide groove 307 in a spiral track, the spiral structure of the flow guide groove prolongs the seawater flow path, at the same time, the flow guide groove wall disturbance enhances the turbulent effect, improves the heat exchange efficiency between the seawater and the graphene heat conduction layer 306, the seawater continuously absorbs the heat of the inert gas in the flowing process, so that the temperature rises to 50-60 DEG C, and the temperature of the inert gas in the air layer 305 after heat exchange decreases to 80-100 DEG C, the seawater absorbing heat is discharged back to the sea through the drain pipe 314 at the bottom of the cooling tank 302, in the flowing process, the outer wall of the drain pipe 314 is in contact with the hot end of the thermoelectric module 316, and the low-temperature seawater of the water delivery pipe 218 maintains the low temperature of the cold end of the module, so that the temperature difference is formed, the thermoelectric module 316 generates electric energy under the temperature difference, and the electric energy is stored in the battery 313 after rectification, so as to meet the power demand (daily power consumption ≤0.36 kWh) of the micro cooling fan 311, realize self-powered supply of the fan, and the inert gas after deep liquid cooling (temperature 80-100 DEG C) is discharged from the exhaust pipe 317 at the bottom of the inner container 304, is delivered to the ship inert gas storage tank through the pipeline or is directly used for cargo hold inerting, the discharge temperature meets the ship safety standard, avoids the high-temperature gas into the cargo hold to cause safety risk, and the supporting column 308 is used for supporting and fixing the cooling tank 302, under the action of the liquid cooling assembly 300, the high-temperature inert gas can be effectively cooled through multi-stage heat exchange, so that the temperature is stably reduced to a safe range, the safety hidden danger caused by high-temperature environment in the closed space such as the ship cargo hold is avoided, so as to protect the long-term stable operation of the inert gas generating device and the delivery system, prolong the service life of the equipment.

[0043] The working principle of the whole device is as follows: during the ship sailing process, the cooling system realizes energy-saving cooling and waste heat recovery through the cooperation of the linkage energy-saving assembly 200 and the liquid cooling assembly 300, and the specific process is as follows:

[0044] First, when the ship is sailing, the water flow naturally surges into the streamlined fairing 206 at the bottom of the bow of the ship, the inner wall of the fairing is tapered and streamlined, which converges the dispersed water flow into a directional high-speed jet, accurately impacting the rotating impeller 205 on the inside. The filter plate 207 at the entrance of the fairing can intercept impurities such as seaweed and sand to prevent the rotating impeller from winding. The rotating impeller 205 rotates under the impact of the water flow, driving the drive shaft 204 to rotate synchronously, converting the kinetic energy of the water flow into mechanical rotational kinetic energy. The rear end of the drive shaft 204 is connected to the planetary carrier 208, driving the planetary carrier 208 to rotate. The rotating rod 209 on the outer surface of the planetary carrier 208 drives the planetary gear 210 to make planetary motion along the fixed gear ring 211. The fixed gear ring 211 is fixed with the U-shaped plate 201 through the support frame 212. The planetary gear 210 rotates by itself to drive the sun gear 213 to rotate at high speed through meshing. After speed increasing through gear transmission, the output shaft 214 transmits high-speed rotating power to the impeller water pump 215. The output shaft 214 and the input shaft of the impeller water pump 215 are connected through a shaft coupling, driving the water pump impeller to rotate. The water pump draws seawater through the bottom water inlet 217. The rotation of the impeller generates centrifugal force to pressurize the seawater, which is stably delivered to the heat recovery system of the inert gas generating device through the top water delivery pipe 218.

[0045] Next, the high-temperature inert gas generated by the ship inert gas generating device is extracted and delivered to the fixed frame 309 area through the air inlet pipe 315. The battery 313 supplies power to the micro cooling fan 311. The fan generates directional airflow to blow towards the high-temperature gas, and at the same time, the heat dissipation fins 312 on both sides diffuse heat through heat conduction, achieving preliminary cooling and reducing the temperature of the inert gas to 500°C. The preliminarily cooled inert gas enters the inner container 304 through the air inlet pipe 315 and flows in the air layer 305. The graphene heat conduction layer 306 on the outer wall of the inner container 304 quickly conducts the heat of the gas to the outside flowing layer 303. The low-temperature seawater delivered by the energy-saving assembly 200 enters the flowing layer 303 through the water delivery pipe 218 and flows downward along the spiral flow guide groove 307 in a spiral trajectory. The temperature of the seawater rises to 50°C after absorbing heat. The temperature of the inert gas in the air layer 305 decreases to 80°C after heat exchange. The seawater that absorbs heat is discharged back to the sea through the drain pipe 314 at the bottom of the cooling tank 302. The outer wall of the drain pipe 314 is in close contact with the hot end of the thermoelectric module 316 during the flowing process. The cold end of the module is maintained at a low temperature by the low-temperature seawater through the water delivery pipe 218, forming a stable temperature difference of 35°C. The thermoelectric module 316 generates electric energy, which is stored in the battery 313 after rectification, to power the micro cooling fan 311. The inert gas cooled to a deep level is discharged from the exhaust pipe 317 at the bottom of the inner container 304 and delivered to the ship inert gas storage tank or cargo hold inertization through the pipeline.

[0046] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications can be made to the foregoing embodiments, or additional techniques can be substituted, without departing from the spirit or essential characteristics of the application. Accordingly, the disclosure of the present application is intended to be illustrative only and not limiting of the scope of the application, which is set forth in the following claims.

Claims

1. A cooling system for a marine inert gas generator with heat recovery, characterized in that include: Two sets of connecting plates (1); An energy-saving linkage component (200) is disposed on the outer surface of the connecting plate (1), and the energy-saving linkage component (200) is used to save power consumption; The linkage energy-saving component (200) includes a U-shaped plate (201), a bracket (202), and a planetary carrier (208). The inner wall of the bracket (202) is provided with a bearing (203), and the inner wall of the bearing (203) is provided with a drive shaft (204). A rotating impeller (205) is fixedly installed on the outer surface of the drive shaft (204). The rotating impeller (205) is used to push the fluid when rotating. A streamlined flow guide (206) is fixedly installed on the outer surface of the bracket (202). The streamlined flow guide (206) is used to guide and accelerate the flow of water. A filter plate (207) is fixedly installed on the inner wall of the streamlined flow guide (206). The filter plate (207) is used to filter seaweed. One end of the drive shaft (204) is fixedly connected to the outer surface of the planet carrier (208). Multiple sets of rotating rods (209) are fixedly connected to the outer surface of the planet carrier (208). One end of each set of rotating rods (209) is fixedly connected to a planet gear (210). A fixed gear ring (211) is meshed with the outer surface of each set of planet gears (210). A support frame (212) is fixedly connected to the outer surface of the fixed gear ring (211). The support frame (212) is used to support and stabilize the fixed gear ring (211). The outer surface of the support frame (212) is fixedly connected to the inner wall of the U-shaped plate (201). The outer surfaces of multiple sets of planetary gears (210) are meshed with sun gears (213). An output shaft (214) is fixedly connected to the inner wall of the sun gear (213), and an impeller water pump (215) is fixedly installed on the outer surface of the output shaft (214). The impeller water pump (215) is used to drive water flow and increase water pressure. A base (216) is fixedly installed at the bottom of the impeller water pump (215). The base (216) is used to support and stabilize the impeller pump (215). The outer surface of the base (216) is fixedly connected to the inner wall of the U-shaped plate (201). The bottom of the impeller pump (215) is fixedly connected to the water inlet (217). The top of the impeller pump (215) is fixedly connected to a water delivery pipe (218), which serves as a liquid delivery channel. The outer surface of the bracket (202) is fixedly connected to the inner wall of the U-shaped plate (201), and the outer surfaces of the two sets of connecting plates (1) are fixedly connected to the outer surface of the U-shaped plate (201). The top of the two sets of connecting plates (1) is provided with a liquid cooling assembly (300), which is used to reduce the temperature of the inert gas; The liquid cooling assembly (300) comprises a fixing plate (301), a cooling tank (302) and an air inlet pipe (315), the inside of the cooling tank (302) is divided into a flow interlayer (303) for internal flow of seawater, the inner bottom of the cooling tank (302) is fixedly installed with an inner container (304), the inside of the inner container (304) is divided into an air interlayer (305) for internal flow of inert gas, the outer surface of the inner container (304) is provided with a graphene heat conduction layer (306) for conducting heat of the inert gas. The outer surface of the graphene heat conduction layer (306) is provided with a spiral flow guide groove (307) for flow guide of seawater, the bottom of the cooling tank (302) is fixedly installed with a support column (308) for supporting and fixing the cooling tank (302), and the bottom of the support column (308) is fixedly connected with the top of the fixing plate (301).

2. The inert gas generator cooling system with heat recovery for marine applications according to claim 1, characterized in that: The top of the fixing plate (301) is fixedly connected with a fixing frame (309), the top of the fixing frame (309) is provided, near the center, with a clamping groove (310) fixedly installed with a micro cooling fan (311) for preliminary cooling of the inert gas, and the outer surfaces of the two sides of the fixing frame (309) are fixedly installed with cooling fins (312) for enhancing the cooling effect of the inert gas.

3. The inert gas generator cooling system with heat recovery for marine applications according to claim 2, characterized in that: The top of the fixing frame (309) is fixedly installed with a storage battery (313) for providing power for the micro cooling fan (311), the bottom of the cooling tank (302) is fixedly communicated with a drain pipe (314) slidingly penetrating through the top of the fixing plate (301) and extending to the lower side, and one end of the air inlet pipe (315) is fixedly communicated with the outer surface of the cooling tank (302) near the upper side.

4. The inert gas generator cooling system with heat recovery for marine applications according to claim 3, characterized in that: The top of the fixing plate (301) is fixedly installed with a thermoelectric power generation module (316), the bottom of the inner container (304) is fixedly communicated with an exhaust pipe (317) slidingly penetrating through the inner bottom of the cooling tank (302) and extending to the lower side, one end of a water delivery pipe (218) slidingly penetrates through the bottom of the fixing plate (301) and extends to the upper side, one end of the water delivery pipe (218) is fixedly communicated with the top of the cooling tank (302), and the tops of the two groups of connecting plates (1) are fixedly connected with the bottom of the fixing plate (301).

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