Underwater multi-source energy supply split type power station system and working process

Abstract

The invention relates to an underwater multi-source energy supply split type power station system and a working process. Comprising a split raw material pressure-resistant cabin, a split gas-producing pressure-resistant cabin, a split galvanic pile pressure-resistant cabin, a metering pump, a hydrogen-producing reactor, an oxygen-producing reactor, a fuel cell galvanic pile, a thermoelectric generation battery pack, a storage battery pack, a DC / DC converter, a storage battery pack, a wall-attached water tank, a wireless power supply module, a limited power supply module, a cut-off type quick connector, a wet plug connector and the like. The corresponding split pressure-resistant cabins can be replaced or replenished according to the working characteristics and the service life of equipment in different cabins, the whole pressure-resistant cabin does not need to be dragged out of deep water when part of the equipment breaks down or raw materials are replenished once, and the equipment maintenance difficulty and the raw material replenishment difficulty are greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater energy power systems, and in particular to an underwater multi-source energy supply split-type power station system and a working process. Background Art

[0002] In recent years, with the upgrading of deep-sea equipment, technologies and means such as deep-sea resource development, deep-sea biological research, deep-sea security and safety have also become a reality. Therefore, everyone has focused on the deep sea. Deep-sea energy, as the energy power for various deep-sea equipment, is a necessary prerequisite for realizing deep-sea resource development, biological research, deep-sea security and safety.

[0003] Faced with the development needs of deep-sea equipment for long flight time, easy replenishment, clustering, and intelligence, how to build an energy power station with complete functions, good performance, and easy operation underwater is still a difficult problem. Fuel cells, as an electrochemical energy conversion device, have the characteristics of high efficiency, low infrared characteristics, no moving parts, low vibration and noise, and no exhaust emissions. Therefore, they are increasingly used in underwater closed environments. For underwater energy power stations, in addition to having high energy storage density and easy energy replenishment, the products between equipment or systems should be recycled as much as possible, and the generated products should be as small as possible, which is also a factor that must be considered.

[0004] In view of the above situation, taking into account the requirements of energy storage density, replenishment difficulty, power generation method, product recycling, etc. of underwater energy power stations, an underwater multi-source energy supply split power station system is urgently needed. Summary of the invention

[0005] In view of the shortcomings of the above-mentioned existing production technologies, the applicant provides an underwater multi-source energy supply split power station system and work flow, which not only has high power generation efficiency and near-zero emissions, but also realizes underwater multi-source energy supply through fuel cell power generation technology, temperature difference power generation technology and battery energy storage technology; by utilizing hydrogen peroxide oxygen production technology and aluminum hydrolysis hydrogen production technology, the relevant reaction equipment is simple, the supply of hydrogen and oxygen raw materials is greatly simplified, the gas purity is high, there are no complex products, the energy storage density is high, and the water generated by the hydrogen peroxide oxygen production technology can be directly recycled by aluminum hydrolysis to produce hydrogen.

[0006] The technical solution adopted by the present invention is as follows:

[0007] An underwater multi-source energy supply split power station system comprises a split raw material pressure-resistant cabin, a split gas production pressure-resistant cabin and a split stack pressure-resistant cabin connected in sequence, wherein a hydrogen peroxide storage tank and an aluminum storage tank are arranged in the split raw material pressure-resistant cabin, the hydrogen peroxide storage tank is connected to the inside of the split gas production pressure-resistant cabin through a pipeline, a No. 1 cut-off quick connector is installed on the pipeline, a metering pump, an oxygen production reactor, a No. 1 condenser and a No. 1 gas-liquid separator are connected in series in sequence in the split gas production pressure-resistant cabin through a pipeline, one end of the No. 1 gas-liquid separator is simultaneously connected to a generated water tank and a No. 2 gas-liquid separator, the other end of the No. 1 gas-liquid separator and the No. 2 gas-liquid separator are connected to a fuel cell battery in the split stack pressure-resistant cabin through a pipeline. The stack, the oxygen production reactor is connected to the generated water tank, the generated water tank is also connected to the hydrogen production reactor through a pipeline, the No. 2 gas-liquid separator is connected to the No. 2 condenser, the output end of the aluminum storage tank is connected to the hydrogen production reactor through a screw pump, and the hydrogen production reactor is connected to the No. 2 condenser; located inside the split stack pressure cabin, the fuel cell stack is respectively connected to the thermal management unit, the fuel cell DC / DC converter and the product processing unit, the fuel cell DC / DC converter is respectively connected to the wireless power supply module, the battery pack and the temperature difference battery DC / DC converter through branch pipelines, the wireless power supply module is connected to the limited power supply module, and the temperature difference battery DC / DC converter is connected to the hydrogen production reactor through a wet plug connector.

[0008] Its further technical solution is:

[0009] A No. 2 cut-off quick connector is installed on the pipeline between the No. 2 gas-liquid separator and the fuel cell stack.

[0010] A No. 3 cut-off quick connector is installed on the pipeline between the No. 1 gas-liquid separator and the fuel cell stack.

[0011] A No. 4 cut-off quick connector is installed on the pipeline between the aluminum storage tank and the screw pump.

[0012] A wall-attached water tank is arranged at the bottom of the hydrogen production reactor.

[0013] A fixed amount of aluminum powder delivered by a screw pump inside the hydrogen production reactor reacts chemically with water to produce hydrogen and heat.

[0014] The outer wall surface of the hydrogen production reactor is provided with a hot side copper heat conductive component, the high temperature surface of the thermoelectric generator group is bonded to the hot side copper heat conductive component, and the low temperature surface of the thermoelectric generator group is bonded to the cold side copper heat conductive component.

[0015] A working process of an underwater multi-source energy supply split power station system includes the following processes:

[0016] First, the storage of energy raw materials in split power plants:

[0017] A hydrogen peroxide storage tank and an aluminum storage tank are installed in the split raw material pressure tank. The hydrogen peroxide storage tank is used to store hydrogen peroxide solution for oxygen production, and the aluminum storage tank is used to store aluminum powder for hydrogen production. The outlet pipelines of the hydrogen peroxide storage tank and the aluminum storage tank are provided with cut-off quick connectors for connecting and disconnecting the interface pipelines between the split raw material pressure tank and the split gas production pressure tank in the seawater environment.

[0018] Secondly, hydrogen peroxide produces oxygen:

[0019] The hydrogen peroxide in the hydrogen peroxide storage tank is quantitatively delivered to the oxygen production reactor by a metering pump through a No. 1 cut-off quick connector. The hydrogen peroxide is decomposed under the action of the catalyst to produce oxygen and water. The water generated after the reaction enters the generation water tank. The generated oxygen and water vapor mixture is cooled by a No. 1 condenser and then separated into gas and liquid by a No. 1 gas-liquid separator. The separated oxygen is delivered to the inlet end of the fuel cell stack through a No. 3 cut-off quick connector, and the separated water enters the generation water tank.

[0020] Then, aluminum is hydrolyzed to produce hydrogen:

[0021] The aluminum powder in the aluminum storage tank is quantitatively delivered to the hydrogen production reactor by a screw pump through the No. 4 cut-off quick connector, and the water in the generated water tank is also delivered to the hydrogen production reactor. Aluminum is decomposed under the action of the catalyst to produce hydrogen. The hydrogen and water vapor mixture generated after the reaction is cooled by the No. 2 condenser, and then separated by the No. 2 gas-liquid separator. The separated hydrogen is delivered to the inlet end of the fuel cell stack through the No. 2 cut-off quick connector;

[0022] Then, the temperature difference battery pack generates electricity and stores:

[0023] In the hydrogen production reactor, due to the high reaction temperature, heat is released while hydrogen is produced. There is a hot-side copper heat-conducting component on the outer wall of the hydrogen production reactor. The high-temperature surface of the thermoelectric generator group is attached to the hot-side copper heat-conducting component, and the released heat is transferred to the high-temperature surface of the thermoelectric generator group through heat conduction; the low-temperature surface of the thermoelectric generator group is attached to the cold-side copper heat-conducting component, and the low temperature in the wall-attached water tank is transferred to the low-temperature surface of the thermoelectric generator group through heat conduction. In this way, the thermoelectric generator group forms a temperature difference through the high temperature on the high-temperature side and the low temperature on the low-temperature side, and performs thermoelectric power generation. The generated electric energy is supplied to the battery pack through the wet-plug connector and the thermoelectric battery DC / DC converter, which is used to charge underwater electrical equipment;

[0024] Secondly, bulkhead heat exchange cooling:

[0025] The wall of the wall-attached water tank is attached to the inner wall of the split gas-producing pressure cabin, and the low temperature outside the pressure cabin is continuously transferred to the cooling water in the wall-attached water tank by heat conduction, thereby forming a heat exchange between the external seawater and the water in the wall-attached water tank. By utilizing the heat conduction of the pressure cabin shell, it is avoided to open a hole in the pressure cabin to lead seawater into the cabin, which not only improves the structural safety but also reduces the traditional heat exchanger and related pipelines;

[0026] Secondly, fuel cell power generation and storage:

[0027] The hydrogen and oxygen enter the fuel cell stack through the No. 2 cut-off quick connector and the No. 3 cut-off quick connector to generate electrochemical reaction and generate electricity. The electricity is supplied to the battery pack or directly to the wireless power supply module and the limited power supply module through the fuel cell DC / DC converter. The storage group is used to eliminate peaks and fill valleys. When there is no underwater equipment to charge, the electricity generated by the fuel cell is stored in the battery pack. When there are many underwater charging devices and the electricity generated by the fuel cell is insufficient, it is supplemented by the electricity in the battery pack. In this way, the fuel cell power generation technology, the temperature difference power generation technology and the battery energy storage technology are used to realize underwater multi-source energy supply.

[0028] Finally, the replenishment of raw materials and the replacement and maintenance of equipment:

[0029] When the energy raw materials in this system are consumed and energy replenishment is needed, at this time, the split raw material pressure cabin filled with energy raw materials is towed to the vicinity of this power station through the underwater platform, and the No. 1 cut-off quick connector and the No. 4 cut-off quick connector are disconnected by an underwater robot, and the split raw material pressure cabin that needs energy replenishment is towed away, and the split raw material pressure cabin filled with energy raw materials is connected to the No. 1 cut-off quick connector and the No. 4 cut-off quick connector, and the split raw material pressure cabin that needs energy replenishment is towed to the surface through the underwater platform for replenishment or replacement; when the equipment in the split gas production pressure cabin or the split stack pressure cabin needs maintenance or replacement, the single pressure cabin is also towed to the surface for maintenance and replacement.

[0030] The beneficial effects of the present invention are as follows:

[0031] The invention has a compact and reasonable structure and is easy to operate. It changes a traditional large and heavy pressure-resistant cabin power station structure into a plurality of split pressure-resistant cabin power station structures. The corresponding split pressure-resistant cabins can be replaced or replenished according to the working characteristics and service life of the equipment in different cabins. There is no need to drag the entire pressure-resistant cabin out of deep water when some equipment fails or when a single raw material is replenished, which greatly reduces the difficulty of equipment maintenance and raw material replenishment. Through fuel cell power generation technology, temperature difference power generation technology and battery energy storage technology, not only the power generation efficiency is high and near-zero emissions are achieved, but also underwater multi-source energy supply is achieved. By utilizing hydrogen peroxide oxygen production technology, aluminum hydrolysis hydrogen production technology, the relevant reaction equipment is simple, the supply of hydrogen and oxygen raw materials is much simplified, the gas purity is high, there are no complex products, the energy storage density is high, and the water generated by the hydrogen peroxide oxygen production technology can be directly recycled by aluminum hydrolysis hydrogen production. In addition, the heat released in the process of aluminum hydrolysis hydrogen production is fully utilized through the temperature difference power generation battery group, so that waste heat is recycled and utilized. By setting a limited power supply module and a wireless power supply module, different underwater electrical equipment can be charged.

[0032] At the same time, the present invention also has the following advantages:

[0033] 1. This system breaks down a traditional large and heavy integrated power station into several split structures. The corresponding split pressure cabins can be replaced or replenished according to the working characteristics and service life of the equipment in different cabins. There is no need to drag the entire pressure cabin out of deep water when some equipment fails or when replenishing raw materials for a single time, which greatly reduces the difficulty of equipment maintenance and raw material replenishment (the traditional integrated power station needs to be dragged out of deep water when energy replenishment is needed).

[0034] 2. Each split pressure chamber can be connected and disconnected in an underwater seawater environment. According to the operation and maintenance requirements of the power station and the energy supply requirements, the split raw material pressure chamber, the split gas production pressure chamber and the split stack pressure chamber can be connected and disconnected in an underwater seawater environment through a truncation-type quick connector and a wet-plug connector, and the pipelines and cables can be cut off after disconnection and connected after connection.

[0035] 3. This system uses hydrogen peroxide and aluminum powder as raw materials for oxygen and hydrogen. In terms of oxygen storage, it does not adopt traditional high-pressure oxygen storage and liquid oxygen storage. In terms of hydrogen storage, it does not adopt high-pressure hydrogen storage, alloy hydrogen storage and liquid hydrogen storage. This makes the storage equipment simple, the system safe and controllable, and the energy storage density high. It also effectively avoids the self-evaporation and safety problems of liquid oxygen storage and liquid oxygen hydrogen storage, and the problems of complex systems and low energy storage density of high-pressure hydrogen storage, oxygen storage and alloy hydrogen storage.

[0036] 4. The fuel cell stack generates electrical energy through the electrochemical reaction of hydrogen and oxygen produced in the split gas-producing pressure chamber, which is supplied to the wireless power supply module and the limited power supply module through the fuel cell DC / DC converter for charging underwater electrical equipment.

[0037] 5. Effectively utilize the high temperature heat generated by the reaction in the hydrogen production reactor and the low temperature in the wall-mounted water tank to generate electricity through the thermoelectric generator group, and supply it to the wireless power supply module and the limited power supply module through the thermoelectric DC / DC converter for charging underwater electrical equipment.

[0038] 6. By using the water produced by the hydrogen peroxide reaction as the water raw material for the production of hydrogen by aluminum hydrolysis, and by using the high-temperature heat generated by the production of hydrogen by aluminum hydrolysis and the low temperature formed by the wall-mounted water tank and the external seawater to generate temperature difference energy, not only the recycling of materials (water produced by hydrogen peroxide) but also the recycling of energy (heat generated by aluminum hydrolysis) is achieved.

[0039] 7. The battery pack is used to eliminate peak loads and fill valley loads. When there is no underwater equipment to charge, the electricity generated by the fuel cell is stored in the battery pack. When there are many underwater charging devices and the electricity generated by the fuel cell is insufficient, the electricity in the battery pack is used to supplement it.

[0040] 8. This system is equipped with both wireless power supply module and limited power supply module (equipped with wet plug connectors of different specifications), which can realize charging of underwater electrical equipment in various ways and specifications.

[0041] 9. This system is equipped with a wall-mounted water tank, which can achieve heat exchange between the low temperature of the outer seawater and the water in the wall-mounted water tank, avoiding the traditional method of opening a hole in the pressure hull to introduce the seawater pipeline into the cabin.

[0042] 10. In the production of hydrogen by aluminum hydrolysis, the water generated by hydrogen peroxide is used as the reaction water for the production of hydrogen by aluminum hydrolysis. There is no need to take water from external seawater, thus realizing the recycling of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the system structure of the present invention.

[0044] Figure 2 It is a partial view (1) of the present invention.

[0045] Figure 3 It is a partial view (two) of the present invention.

[0046] Figure 4 It is a partial view (three) of the present invention.

[0047] Figure 5 It is a structural schematic diagram of the hydrogen production reactor of the present invention.

[0048] Among them: 1. Hydrogen peroxide storage tank; 2. No. 1 cut-off quick connector; 3. Split raw material pressure chamber; 4. Metering pump; 5. Oxygen production reactor; 6. Split gas production pressure chamber; 7. No. 1 condenser; 8. No. 1 gas-liquid separator; 9. Generated water tank; 10. No. 2 gas-liquid separator; 11. No. 2 cut-off quick connector; 12. No. 3 cut-off quick connector; 13. Fuel cell stack; 14. Thermal management unit; 15. Fuel cell DC / DC converter; 1 6. Split stack pressure cabin; 17. Wireless power supply module; 18. Limited power supply module; 19. Battery pack; 20. Thermoelectric battery DC / DC converter; 21. Product processing unit; 22. Wet plug connector; 23. Wall-mounted water tank; 24. No. 2 condenser; 25. Hot side copper thermal conductive component; 26. Thermoelectric battery pack; 27. Hydrogen production reactor; 28. Cold side copper thermal conductive component; 29. ​​Screw pump; 30. No. 4 disconnectable quick connector; 31. Aluminum storage tank. DETAILED DESCRIPTION

[0049] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0050] like Figure 1-Figure 5 As shown, the underwater multi-source energy supply split power station system of this embodiment includes a split raw material pressure cabin 3, a split gas production pressure cabin 6 and a split stack pressure cabin 16 connected in sequence, a hydrogen peroxide storage tank 1 and an aluminum storage tank 31 are arranged in the split raw material pressure cabin 3, the hydrogen peroxide storage tank 1 is connected to the inside of the split gas production pressure cabin 6 through a pipeline, a No. 1 cut-off quick connector 2 is installed on the pipeline, a metering pump 4, an oxygen production reactor 5, a No. 1 condenser 7 and a No. 1 gas-liquid separator 8 are connected in series in sequence in the split gas production pressure cabin 6 through a pipeline, one end of the No. 1 gas-liquid separator 8 is simultaneously connected to a generated water tank 9 and a No. 2 gas-liquid separator 10, the other end of the No. 1 gas-liquid separator 8 and the No. 2 gas-liquid separator 10 are connected to the fuel cell stack 13 in the split stack pressure cabin 16 through a pipeline, the oxygen production reactor 5 It is connected to the generated water tank 9, which is also connected to the hydrogen production reactor 27 through a pipeline. The No. 2 gas-liquid separator 10 is connected to the No. 2 condenser 24. The output end of the aluminum storage tank 31 is connected to the hydrogen production reactor 27 through a screw pump 29, and the hydrogen production reactor 27 is connected to the No. 2 condenser 24; located inside the split stack pressure cabin 16, the fuel cell stack 13 is respectively connected to the thermal management unit 14, the fuel cell DC / DC converter 15 and the product processing unit 21, the fuel cell DC / DC converter 15 is respectively connected to the wireless power supply module 17, the battery pack 19 and the thermoelectric battery DC / DC converter 20 through branch pipelines, the wireless power supply module 17 is connected to the limited power supply module 18, and the thermoelectric battery DC / DC converter 20 is connected to the hydrogen production reactor 27 through the wet plug connector 22.

[0051] A second cut-off quick connector 11 is installed on the pipeline between the second gas-liquid separator 10 and the fuel cell stack 13 .

[0052] A No. 3 cut-off quick connector 12 is installed on the pipeline between the No. 1 gas-liquid separator 8 and the fuel cell stack 13 .

[0053] A No. 4 cut-off quick connector 30 is installed on the pipeline between the aluminum storage tank 31 and the screw pump 29.

[0054] A wall-attached water tank 23 is provided at the bottom of the hydrogen production reactor 27 .

[0055] The hydrogen production reactor 27 is an underwater closed chamber capable of withstanding the back pressure of seawater.

[0056] A certain amount of aluminum powder delivered to the hydrogen production reactor 27 by the screw pump 29 reacts chemically with water to generate hydrogen and heat.

[0057] The outer wall surface of the hydrogen production reactor 27 is provided with a hot side copper heat conductive component 25, the high temperature surface of the thermoelectric generator group 26 is bonded to the hot side copper heat conductive component 25, and the low temperature surface of the thermoelectric generator group 26 is bonded to the cold side copper heat conductive component 28.

[0058] The following is a detailed description of the purpose of each component:

[0059] Among them, the hydrogen peroxide storage tank 1 is a storage tank for storing hydrogen peroxide solution, which is installed inside a split raw material pressure-resistant cabin 3 that can withstand the back pressure of seawater.

[0060] Among them, the cut-off quick connector is a connector that can quickly connect or disconnect the pipeline and cut off the fluid after disconnection.

[0061] Among them, the split raw material pressure-resistant cabin 3 is an underwater closed cabin that can withstand the back pressure of seawater, and a hydrogen peroxide storage tank 1 and an aluminum storage tank 31 are arranged inside it.

[0062] Among them, the metering pump 4 is a pump used to provide pressure head for the pipeline and has a metering function.

[0063] Among them, the oxygen generating reactor 5 is a container for hydrogen peroxide to react and generate oxygen and water.

[0064] Among them, the split gas-producing pressure-resistant cabin 6 - an underwater enclosed cabin that can withstand the back pressure of seawater, after being processed by the equipment inside it, finally produces hydrogen and oxygen for the fuel cell stack 13 and electricity generated by temperature difference power generation.

[0065] Among them, the No. 1 condenser 7 and the No. 2 condenser 24 are devices for condensing a high-temperature gas-liquid mixture.

[0066] Among them, the No. 1 gas-liquid separator 8 and the No. 2 gas-liquid separator 10 are devices for separating gas and liquid oxygen.

[0067] Among them, the generated water tank 9 is a device for collecting generated water. This system is used to collect water generated after the hydrogen peroxide reaction.

[0068] Among them, the fuel cell stack 13 is a power generation device that uses hydrogen as fuel and oxygen as oxidant to convert chemical energy into electrical energy through electrochemical reactions.

[0069] Among them, the thermal management unit 14 is a device for dynamically managing the heat generated by the fuel cell stack 13 to ensure that the stack continues to operate within a suitable temperature range.

[0070] The fuel cell DC / DC converter 15 is a device that can boost or reduce the voltage of direct current. In this system, it is a device that boosts the low-voltage direct current generated by the fuel cell into high-voltage direct current within a specified range.

[0071] Among them, the split stack pressure cabin 16 is an underwater closed cabin that can withstand the back pressure of seawater, in which the power generation system of the fuel cell stack 13 and the interface for charging external equipment are arranged.

[0072] Among them, the wireless power supply module 17 is a method of charging underwater electrical equipment such as unmanned submersibles through wireless charging.

[0073] Among them, the limited power supply module 18 is composed of several wet-plug electrical connectors of different specifications, which charges underwater electrical equipment such as unmanned submersibles through wired charging.

[0074] Among them, the battery pack 19 is a device for storing direct current. This system is used to store electricity generated by the fuel cell stack 13 and the thermoelectric battery.

[0075] Among them, the thermoelectric battery DC / DC converter 20 is a device that can boost or reduce the voltage of direct current. In this system, it is a device that boosts the low-voltage direct current emitted by the thermoelectric battery into high-voltage direct current within a specified range.

[0076] Among them, the product processing unit 21 is a device for processing water and tail gas generated by the fuel cell stack 13.

[0077] Among them, the wet plug connector 22 is an electrical connector that can withstand seawater pressure and can be connected and disconnected in a seawater environment. This system is used to connect and disconnect electrical energy between the split gas production pressure cabin 6 and the split fuel cell stack pressure cabin 16.

[0078] Among them, the wall-mounted water tank 23 is a heat exchange water tank with good thermal conductivity and attached to the inner shell of the split gas-producing pressure-resistant cabin 6. This system transfers the low temperature of the external seawater to the inside of the water tank through heat conduction, thereby cooling the cold end of the temperature difference generator group 26.

[0079] Among them, the hot side copper heat conductive component 25 is composed of a copper sheet component with good thermal conductivity. This system transfers the heat of the outer wall of the hydrogen production reactor 27 to the hot side of the temperature difference power generation battery group 26.

[0080] Among them, the thermoelectric generator group 26 is a device that uses temperature difference based on the first thermoelectric effect principle to directly convert thermal energy into electrical energy. In this system, multiple thermoelectric generator sheets are connected in series and parallel to form a thermoelectric generator group.

[0081] Among them, the hydrogen production reactor 27 is an underwater closed cabin that can withstand the back pressure of seawater. A certain amount of aluminum powder transported by a screw pump 29 reacts chemically with water to produce hydrogen and heat. The heat is conducted to the temperature difference generator group 26 through the hot side copper heat conductive component 25.

[0082] Among them, the cold side copper heat conductive component 28 is composed of a copper sheet component with good thermal conductivity. This system transfers cold energy to the cold side of the temperature difference generator group 26.

[0083] Among them, the screw pump 29 is a volumetric pump that can output solid powder.

[0084] Among them, the aluminum powder storage tank 31 is a device for storing aluminum powder raw materials.

[0085] The main working principle of the underwater multi-source energy supply split power station system described in the present invention is:

[0086] The energy required for the split power station to generate electricity is stored in the hydrogen peroxide storage tank 1 and the aluminum storage tank 31 in the split raw material pressure cabin 3. When the energy is consumed, the truncation-type quick connector between the split raw material pressure cabin 3 and the split gas production pressure cabin 6 is disconnected, and the split raw material pressure cabin 3 is lifted to the water surface for replacement and replenishment of energy raw materials; the relevant equipment in the split gas production pressure cabin 6 utilizes hydrogen peroxide oxygen production technology and aluminum hydrolysis hydrogen production technology to chemically react and process the provided energy raw materials to produce hydrogen and oxygen for use in the fuel cell stack 13, wherein the water generated by hydrogen peroxide oxygen production can be directly recycled by aluminum hydrolysis hydrogen production; the high temperature heat generated by the reaction in the hydrogen production reactor 27 and the low temperature in the wall-attached water tank 23 are used to generate electricity through the temperature difference power generation battery group 26, and the temperature difference The power generation DC / DC converter supplies power to the wireless power supply module 17 and the limited power supply module 18 for charging underwater electrical equipment; the hydrogen and oxygen generated in the split gas-producing pressure cabin 6 undergo an electrochemical reaction to generate electrical energy through the fuel cell stack 13, and the electrical energy is supplied to the wireless power supply module 17 and the limited power supply module 18 through the fuel cell DC / DC converter 15 for charging underwater electrical equipment; the storage group is used to eliminate peak loads and fill valley loads. When there is no underwater equipment to be charged, the electricity generated by the fuel cell is stored in the battery group 19. When there are many underwater charging devices and the electricity generated by the fuel cell is insufficient, the electricity in the battery group 19 is used to supplement it. In this way, multi-source underwater energy supply is achieved through fuel cell power generation technology, temperature difference power generation technology and battery energy storage technology.

[0087] A working process for an underwater multi-source energy supply split power station system is as follows:

[0088] (I) Storage of energy materials in split power plants:

[0089] A hydrogen peroxide storage tank 1 and an aluminum storage tank 31 are installed and arranged in the split raw material pressure cabin 3, wherein the hydrogen peroxide storage tank 1 is used to store hydrogen peroxide solution for oxygen production, and the aluminum storage tank is used to store aluminum powder for hydrogen production. The outlet pipelines of the hydrogen peroxide storage tank 1 and the aluminum storage tank 31 are provided with cut-off quick connectors for connecting and disconnecting the interface pipeline between the split raw material pressure cabin 3 and the split gas production pressure cabin 6 in a seawater environment.

[0090] (II) Hydrogen peroxide oxygen production:

[0091] The hydrogen peroxide in the hydrogen peroxide storage tank 1 is quantitatively delivered to the oxygen production reactor 5 by the metering pump 4 through the No. 1 cut-off quick connector 2. The hydrogen peroxide decomposes to produce oxygen and water under the action of the catalyst. The decomposition reaction formula is: 2H2O2→2H2O+O2↑. The water generated after the reaction enters the generated water tank 9. The generated oxygen and water vapor mixture is cooled by the No. 1 condenser 7, and then separated into gas and liquid by the No. 1 gas-liquid separator 8. The separated oxygen is delivered to the inlet end of the fuel cell stack 13 through the No. 3 cut-off quick connector 12, and the separated water enters the generated water tank 9.

[0092] (III) Hydrogen production by aluminum hydrolysis:

[0093] The aluminum powder in the aluminum storage tank 31 is quantitatively delivered to the hydrogen production reactor 27 by the screw pump 29 through the No. 4 cut-off quick connector 30, and the water in the generated water tank 9 is also delivered to the hydrogen production reactor 27. Aluminum is decomposed to produce hydrogen under the action of the catalyst, and its decomposition reaction formula is: 2Al+6H2O→2Al(OH)3+3H2↑. The hydrogen and water vapor mixture generated after the reaction is cooled by the No. 2 condenser 24, and then separated into gas and liquid by the No. 2 gas-liquid separator 10. The separated hydrogen is delivered to the inlet end of the fuel cell stack 13 through the No. 2 cut-off quick connector 11.

[0094] (IV) Power generation and storage of the temperature difference generator set 26:

[0095] In the hydrogen production reactor 27, due to the high reaction temperature, heat is released while hydrogen is produced. A hot-side copper heat-conducting component 25 is provided on the outer wall of the hydrogen production reactor 27. The high-temperature surface of the thermoelectric generator group 26 is bonded to the hot-side copper heat-conducting component 25, and the released heat is transferred to the high-temperature surface of the thermoelectric generator group 26 by heat conduction; the low-temperature surface of the thermoelectric generator group 26 is bonded to the cold-side copper heat-conducting component 28, and the low temperature in the wall-attached water tank 23 is transferred to the low-temperature surface of the thermoelectric generator group 26 by heat conduction. In this way, the thermoelectric generator group 26 forms a temperature difference through the high temperature on the high-temperature side and the low temperature on the low-temperature side, and performs thermoelectric power generation. The generated electric energy is supplied to the battery group 19 through the wet-plug connector 22 and the thermoelectric battery DC / DC converter 20 for charging underwater electrical equipment.

[0096] (V) Bulkhead heat exchange cooling:

[0097] The wall of the wall-attached water tank 23 is attached to the inner wall of the split gas-producing pressure cabin 6, and the low temperature outside the pressure cabin is continuously conducted to the cooling water in the wall-attached water tank 23 by heat conduction, thereby forming a heat exchange between the external seawater and the water in the wall-attached water tank 23. By utilizing the heat conduction of the pressure cabin shell, it is avoided to open a hole in the pressure cabin to lead seawater into the cabin, which not only improves the structural safety but also reduces the traditional heat exchanger and related pipelines.

[0098] (VI) Fuel cell power generation and storage:

[0099] The hydrogen and oxygen enter the fuel cell stack 13 through the No. 2 cut-off quick connector 11 and the No. 3 cut-off quick connector 12 to undergo electrochemical reactions and generate electrical energy. The electrical energy is supplied to the battery pack 19 or directly to the wireless power supply module 17 and the limited power supply module 18 through the fuel cell DC / DC converter 15. The battery pack is used to eliminate peak loads and fill valleys. When there is no underwater equipment to be charged, the electricity generated by the fuel cell is stored in the battery pack 19. When there are many underwater charging devices and the electrical energy generated by the fuel cell is insufficient, it is supplemented by the electrical energy in the battery pack 19. In this way, multi-source underwater energy supply is achieved through fuel cell power generation technology, temperature difference power generation technology and battery energy storage technology.

[0100] (VII) Supply of raw materials and equipment replacement and maintenance:

[0101] When the energy raw materials in the system are consumed and energy replenishment is needed, at this time, the split raw material pressure cabin 3 filled with energy raw materials is towed to the vicinity of the power station through the underwater platform, and the No. 1 cut-off quick connector 2 and the No. 4 cut-off quick connector 30 are disconnected by an underwater robot, and the split raw material pressure cabin 3 that needs energy replenishment is towed away, and the split raw material pressure cabin 3 filled with energy raw materials is connected to the No. 1 cut-off quick connector 2 and the No. 4 cut-off quick connector 30, and the split raw material pressure cabin that needs energy replenishment is towed to the surface of the water through the underwater platform for replenishment or replacement; when the equipment in the split gas production pressure cabin 6 or the split stack pressure cabin 16 needs maintenance or replacement, the single pressure cabin is also towed to the surface of the water for maintenance and replacement.

[0102] The present invention uses fuel cell power generation technology, temperature difference power generation technology and battery energy storage technology to not only have high power generation efficiency and near-zero emissions, but also realize underwater multi-source energy supply; it uses hydrogen peroxide oxygen production technology and aluminum hydrolysis hydrogen production technology, has no complex products and has high energy storage density; in addition, the temperature difference power generation battery group fully utilizes the heat released in the aluminum hydrolysis hydrogen production process, realizing the recovery and utilization of waste heat.

[0103] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. An underwater multi-source energy supply split power station system, characterized in that: The invention comprises a split raw material pressure-resistant cabin (3), a split gas production pressure-resistant cabin (6) and a split stack pressure-resistant cabin (16) which are connected in sequence. A hydrogen peroxide storage tank (1) and an aluminum storage tank (31) are arranged in the split raw material pressure-resistant cabin (3). The hydrogen peroxide storage tank (1) is connected to the inside of the split gas production pressure-resistant cabin (6) through a pipeline. A No. 1 cut-off quick connector (2) is installed on the pipeline. A metering pump (4), an oxygen production reactor (5), a No. 1 condenser (7) and a No. 1 gas-liquid separator (8) are connected in series in sequence in the split gas production pressure-resistant cabin (6) through a pipeline. One end of the No. 1 gas-liquid separator (8) is simultaneously connected to a generated water tank (9) and a No. 2 gas-liquid separator (10). The other end of the No. 1 gas-liquid separator (8) and the No. 2 gas-liquid separator (10) are connected to a fuel cell stack (13) in the split stack pressure-resistant cabin (16) through a pipeline. The oxygen production reactor (5) is connected to the generated water tank (9). The water tank (9) is also connected to a hydrogen production reactor (27) through a pipeline, the second gas-liquid separator (10) is connected to a second condenser (24), the output end of the aluminum storage tank (31) is connected to the hydrogen production reactor (27) through a screw pump (29), and the hydrogen production reactor (27) is connected to the second condenser (24); located inside the split stack pressure cabin (16), the fuel cell stack (13) is respectively connected to a thermal management unit (14), a fuel cell DC / DC converter (15) and a product processing unit (21), the fuel cell DC / DC converter (15) is respectively connected to a wireless power supply module (17), a battery pack (19) and a thermoelectric battery DC / DC converter (20) through branch pipelines, the wireless power supply module (17) is connected to a limited power supply module (18), and the thermoelectric battery DC / DC converter (20) is connected to the hydrogen production reactor (27) through a wet plug connector (22).

2. The underwater multi-source energy supply split power station system according to claim 1, characterized in that: A second cut-off quick connector (11) is installed on the pipeline between the second gas-liquid separator (10) and the fuel cell stack (13).

3. The underwater multi-source energy supply split power station system according to claim 1, characterized in that: A third cut-off quick connector (12) is installed on the pipeline between the first gas-liquid separator (8) and the fuel cell stack (13).

4. The underwater multi-source energy supply split power station system according to claim 1, characterized in that: A No. 4 cut-off quick connector (30) is installed on the pipeline between the aluminum storage tank (31) and the screw pump (29).

5. The underwater multi-source energy supply split power station system according to claim 1, characterized in that: A wall-attached water tank (23) is provided at the bottom of the hydrogen production reactor (27).

6. The underwater multi-source energy supply split power station system according to claim 1, characterized in that: A certain amount of aluminum powder transported by the screw pump (29) inside the hydrogen production reactor (27) reacts chemically with water to generate hydrogen and heat.

7. The underwater multi-source energy supply split power station system according to claim 1, characterized in that: The outer wall surface of the hydrogen production reactor (27) is provided with a hot-side copper heat-conducting component (25), the high-temperature surface of the thermoelectric generator group (26) is bonded to the hot-side copper heat-conducting component (25), and the low-temperature surface of the thermoelectric generator group (26) is bonded to the cold-side copper heat-conducting component (28).

8. A working process of the underwater multi-source energy supply split power station system according to claim 1, characterized in that: The process includes the following: First, the storage of energy raw materials in split power plants: A hydrogen peroxide storage tank (1) and an aluminum storage tank (31) are installed and arranged in the split raw material pressure-resistant cabin (3); the hydrogen peroxide storage tank (1) is used to store hydrogen peroxide solution for oxygen production, and the aluminum storage tank (31) is used to store aluminum powder for hydrogen production; outlet pipelines of the hydrogen peroxide storage tank (1) and the aluminum storage tank (31) are provided with cut-off quick connectors for connecting and disconnecting the interface pipelines between the split raw material pressure-resistant cabin (3) and the split gas production pressure-resistant cabin (6) in a seawater environment; Secondly, hydrogen peroxide produces oxygen: The hydrogen peroxide in the hydrogen peroxide storage tank (1) is quantitatively delivered to the oxygen production reactor (5) by the metering pump (4) through the first cut-off quick connector (2), and the hydrogen peroxide is decomposed under the action of the catalyst to produce oxygen and water. The water produced after the reaction enters the production water tank (9), and the produced oxygen and water vapor mixture is cooled by the first condenser (7), and then separated into gas and liquid by the first gas-liquid separator (8). The separated oxygen is delivered to the inlet end of the fuel cell stack (13) through the third cut-off quick connector (12), and the separated water enters the production water tank (9); Then, aluminum is hydrolyzed to produce hydrogen: Aluminum powder in an aluminum storage tank (31) is quantitatively delivered to a hydrogen production reactor (27) by a screw pump (29) through a No. 4 cut-off quick connector (30), and water in a generated water tank (9) is also delivered to the hydrogen production reactor (27). Aluminum is decomposed under the action of a catalyst to produce hydrogen. The hydrogen and water vapor mixture generated after the reaction is cooled by a No. 2 condenser (24), and then separated into gas and liquid by a No. 2 gas-liquid separator (10). The separated hydrogen is delivered to the inlet end of a fuel cell stack (13) through a No. 2 cut-off quick connector (11); Then, the temperature difference power generation battery (26) generates and stores electricity: In the hydrogen production reactor (27), due to the high reaction temperature, heat is released while hydrogen is produced. A hot side copper heat conducting component (25) is provided on the outer wall of the hydrogen production reactor (27). The high temperature surface of the thermoelectric generator group (26) is attached to the hot side copper heat conducting component (25), and the released heat is transferred to the high temperature surface of the thermoelectric generator group (26) by heat conduction; the low temperature surface of the thermoelectric generator group (26) is attached to the cold side copper heat conducting component (28), and the low temperature in the wall-attached water tank (23) is transferred to the low temperature surface of the thermoelectric generator group (26) by heat conduction. In this way, the thermoelectric generator group (26) forms a temperature difference through the high temperature on the high temperature side and the low temperature on the low temperature side, and performs thermoelectric power generation. The generated electric energy is supplied to the storage battery group (19) through the wet plug connector (22) and the thermoelectric battery DC / DC converter (20) for charging underwater electrical equipment; Secondly, bulkhead heat exchange cooling: The wall surface of the wall-attached water tank (23) is attached to the inner wall surface of the split gas-producing pressure-resistant cabin (6), and the low temperature outside the pressure-resistant cabin is continuously transferred to the cooling water in the wall-attached water tank (23) by means of heat conduction, thereby forming a heat exchange between the external seawater and the water in the wall-attached water tank (23). By utilizing the heat conduction of the pressure-resistant cabin shell, it is avoided to open a hole in the pressure-resistant cabin to introduce seawater into the cabin, which not only improves the structural safety but also reduces the number of traditional heat exchangers and related pipelines. Secondly, fuel cell power generation and storage: The hydrogen and oxygen enter the fuel cell stack (13) through the second cut-off quick connector (11) and the third cut-off quick connector (12) to generate an electrochemical reaction, thereby generating electric energy. The electric energy is supplied to the battery pack (19) or directly to the wireless power supply module (17) and the limited power supply module (18) through the fuel cell DC / DC converter (15). The power storage group is used to eliminate peak loads and fill valley loads. When there is no underwater equipment to be charged, the electricity generated by the fuel cell is stored in the battery pack (19). When there are many underwater charging equipments and the electric energy generated by the fuel cell is insufficient, the electric energy in the battery pack (19) is used to supplement the electric energy. In this way, the fuel cell power generation technology, the temperature difference power generation technology and the battery energy storage technology are used to realize underwater multi-source energy supply. Finally, the replenishment of raw materials and the replacement and maintenance of equipment: When the energy raw materials in the system are consumed and energy replenishment is required, the split raw material pressure cabin (3) filled with energy raw materials is towed to the vicinity of the power station via an underwater platform, and the No. 1 cut-off quick connector (2) and the No. 4 cut-off quick connector (30) are disconnected by an underwater robot, and the split raw material pressure cabin (3) that needs energy replenishment is towed away, and the split raw material pressure cabin (3) filled with energy raw materials is connected to the No. 1 cut-off quick connector (2) and the No. 4 cut-off quick connector (30), and the split raw material pressure cabin that needs energy replenishment is towed to the surface of the water via the underwater platform for replenishment or replacement; when the equipment in the split gas production pressure cabin (6) or the split stack pressure cabin (16) needs maintenance or replacement, the single pressure cabin is also towed to the surface of the water for maintenance and replacement.

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