Fuel cell power supply system for lunar rover

Abstract

The utility model provides a lunar vehicle fuel cell power supply system which comprises a carbon fiber shell. An oxyhydrogen fuel cell stack, an oxygen circulating pump, a hydrogen circulating pump, a cooling water pump, an oxygen fuel bottle, a hydrogen fuel bottle, a water collecting tank, an oxygen control device, a hydrogen control device, an oxygen-water separator, a hydrogen-water separator, a heat exchanger, a temperature control water tank, a heating device and a control circuit are integrated in the carbon fiber shell; the hydrogen-oxygen fuel cell stack, the oxygen circulating pump, the hydrogen circulating pump, the cooling water pump, the oxygen control device, the hydrogen control device, the heat exchanger and the temperature control water tank are respectively connected with the control circuit through cables, and the power supply system ensures that the lunar rover still has sufficient electric energy during the moon night without photovoltaic power generation. Safe and stable operation of the lunar rover is met, and the working capacity and efficiency of the lunar rover are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerospace fuel cell power supply, in particular to a lunar rover fuel cell power supply system. Background Art

[0002] At present, the main sources of energy for lunar rovers include solar energy. In the design of lunar rovers, solar panels are usually used to collect solar energy and convert it into electrical energy to supply the operation of the vehicle and the work of scientific instruments. This method is very effective during the day on the moon because there is plenty of solar energy. However, during the night on the moon, due to the lack of solar energy supply, the lunar rover cannot continue to use solar panels to obtain energy. Therefore, in this case, the fuel cell power supply system relies on its own high energy density and ultra-long continuous power supply to provide the required energy for the lunar rover. The principle of fuel cells is to use the electrochemical reaction of hydrogen at the anode of the fuel cell and oxygen at the cathode of the fuel cell to generate electron flow, thereby generating electrical energy, so it is expected to be used for the electrical energy of the lunar rover. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a lunar rover fuel cell power supply system.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A fuel cell power supply system for a lunar rover comprises a carbon fiber shell, wherein a hydrogen-oxygen fuel cell stack (1), an oxygen circulation pump (2), a hydrogen circulation pump (3), a cooling water pump (4), an oxygen fuel bottle (5), a hydrogen fuel bottle (6), a water collecting tank (7), an oxygen control device (8), a hydrogen control device (9), an oxygen-water separator (10), a hydrogen-water separator (11), a heat exchanger (12), a temperature-controlled water tank (13), a heating device (14) and a control circuit are integrated in the carbon fiber shell, wherein the hydrogen-oxygen fuel cell stack (1), the oxygen circulation pump (2), the hydrogen circulation pump (3), the cooling water pump (4), the oxygen control device (8), the hydrogen control device (9), the heat exchanger (12) and the temperature-controlled water tank (13) are respectively connected to the control circuit via cables, wherein:

[0006] The hydrogen fuel bottle (6) is connected to the inlet of the hydrogen control device (9), the outlet of the hydrogen control device (9) is connected to the hydrogen inlet of the hydrogen-oxygen fuel cell stack (1) through a hydrogen pipeline, the hydrogen outlet of the hydrogen-oxygen fuel cell stack (1) is connected to the inlet of the hydrogen circulation pump (3) through a hydrogen pipeline, a hydrogen-water separator (11) is provided on the hydrogen pipeline section for separating reaction water, the hydrogen-water separator (11) is connected to the water collecting tank (7) through a water pipe, and the outlet of the hydrogen circulation pump (3) is connected to the hydrogen inlet of the hydrogen-oxygen fuel cell stack (1) through a hydrogen pipeline;

[0007] The oxygen fuel bottle (5) is connected to the inlet of the oxygen control device (8), the outlet of the oxygen control device (8) is connected to the oxygen inlet of the hydrogen-oxygen fuel cell stack (1) through an oxygen pipeline, the oxygen outlet of the hydrogen-oxygen fuel cell stack (1) is connected to the inlet of the oxygen circulation pump (2) through an oxygen pipeline, an oxygen-water separator (10) is provided on the section of the oxygen pipeline for separating reaction water, the oxygen-water separator (10) is connected to the water collecting tank (7) through a water pipe, and the outlet of the oxygen circulation pump (2) is connected to the oxygen inlet of the hydrogen-oxygen fuel cell stack (1) through an oxygen pipeline;

[0008] The outlet of the cooling water pump (4) is connected to the inlet of the heat exchanger (12) through a cooling pipeline, the outlet of the heat exchanger (12) is connected to the cooling inlet of the hydrogen-oxygen fuel cell stack (1) through a cooling pipeline, the cooling outlet of the hydrogen-oxygen fuel cell stack (1) is connected to the inlet of the cooling water pump (4) through a cooling pipeline, the inlet and outlet positions of the cooling water pump (4) are connected to the temperature control water tank (13) through a cooling pipeline, and a heating device (14) is provided inside the temperature control water tank (13).

[0009] Preferably, in the above-mentioned lunar rover fuel cell power supply system, the oxygen control device (8) and the hydrogen control device (9) have the same structure, and are both composed of a quick-insert self-locking connector (15), a main control valve (16), an intake pressure sensor (17), a proportional valve (18), a pressure relief valve (19), an outlet pressure sensor (20) and a housing (21); the main control valve (16), the intake pressure sensor (17), the proportional valve (18), the pressure relief valve (19), and the outlet pressure sensor (20) are arranged on the housing (21) and are connected to the inlet pipeline of the housing in sequence; and a quick-insert self-locking connector (15) is provided at the inlet of the housing.

[0010] Preferably, in the above-mentioned lunar rover fuel cell power supply system, the hydrogen fuel bottle (6) is connected to the inlet of the hydrogen control device (9) via a quick-insert self-locking connector (15), so that the hydrogen fuel bottle (6) can be quickly replaced.

[0011] Preferably, in the above-mentioned lunar rover fuel cell power supply system, the oxygen fuel bottle (5) is connected to the inlet of the oxygen control device (8) via a quick-insert self-locking connector (15), so that the oxygen fuel bottle (5) can be quickly replaced.

[0012] In the above-mentioned lunar rover fuel cell power supply system, the hydrogen-oxygen fuel cell stack is the power generation core of the system, and the hydrogen-oxygen fuel cell stack is divided into an anode and a cathode. In the whole system, the hydrogen in the hydrogen fuel bottle is flow- and pressure-controlled by the hydrogen control device, and then the hydrogen enters the anode of the hydrogen-oxygen fuel cell stack, and an oxidation reaction occurs under the action of the catalyst to produce hydrogen ions and electrons. The unreacted hydrogen at the anode and the water that permeates the cathode are separated by the hydrogen circulation pump and the hydrogen-water separator, and the water is stored through the water collecting tank, and the hydrogen enters the anode of the hydrogen-oxygen fuel cell stack again for reaction; the oxygen in the oxygen fuel bottle is flow- and pressure-controlled by the oxygen control device, and then the oxygen enters the cathode of the hydrogen-oxygen fuel cell stack, and a reduction reaction occurs under the action of the catalyst, combining with hydrogen ions and electrons to generate water. During the whole reaction process, the unreacted oxygen at the cathode and the reactant water are separated by the oxygen circulation pump and the oxygen-water separator, and the water is stored through the water collecting tank, and the oxygen enters the cathode of the hydrogen-oxygen fuel cell stack again for reaction; the cooling water pump, heat exchanger, and temperature control water tank in the system provide temperature control and cooling and heat dissipation requirements for the lunar rover fuel cell power supply system.

[0013] Beneficial effects:

[0014] The hydrogen fuel bottle and oxygen fuel bottle of the lunar rover fuel cell power supply system are quickly replaceable parts, which are convenient for the robot arm and astronauts to operate and replace; the hydrogen part, oxygen part and temperature control part are independently designed and controlled, which increases the safety and reliability of the system; the system has an independent heat exchanger and heating device to ensure that the lunar rover fuel cell power supply system can still maintain controllable temperature and stable operation in the extremely cold environment of the moon; the system's reactant water is stored in a water collecting tank and can be used by aerospace workers for drinking or as raw materials for electrolyzing water to produce hydrogen and oxygen, thereby achieving renewable energy utilization. The power supply system ensures that the lunar rover still has sufficient electricity during the lunar night when there is no photovoltaic power generation, which meets the safe and stable operation of the lunar rover and improves the working ability and efficiency of the lunar rover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the fuel cell power supply system for the lunar rover according to the utility model.

[0016] Figure 2 This is a schematic structural diagram of the oxygen control device / hydrogen control device of the lunar rover fuel cell power supply system of the utility model.

[0017] In the figure: 1- Hydrogen and oxygen fuel cell stack 2- Oxygen circulation pump 3- Hydrogen circulation pump 4- Cooling water pump

[0018] 5- oxygen fuel bottle 6- hydrogen fuel bottle 7- water collecting tank 8- oxygen control device

[0019] 9-Hydrogen control device 10-Oxygen water separator 11-Hydrogen water separator

[0020] 12-heat exchanger 13-temperature control water tank 14-heating device

[0021] 15-Quick-insert self-locking connector 16-Main control valve 17-Intake pressure sensor

[0022] 18-proportional valve 19-pressure relief valve 20-exhaust pressure sensor 21-housing DETAILED DESCRIPTION

[0023] The following is a detailed description of a lunar rover fuel cell power supply system and its implementation method of the utility model in conjunction with the embodiments and drawings.

[0024] Example 1

[0025] like Figure 1-2 As shown, the lunar rover fuel cell power supply system includes a carbon fiber shell, in which a hydrogen-oxygen fuel cell stack 1, an oxygen circulation pump 2, a hydrogen circulation pump 3, a cooling water pump 4, an oxygen fuel bottle 5, a hydrogen fuel bottle 6, a water collecting tank 7, an oxygen control device 8, a hydrogen control device 9, an oxygen-water separator 10, a hydrogen-water separator 11, a heat exchanger 12, a temperature-controlled water tank 13, a heating device 14 and a control circuit are integrated. The hydrogen-oxygen fuel cell stack 1, the oxygen circulation pump 2, the hydrogen circulation pump 3, the cooling water pump 4, the oxygen control device 8, the hydrogen control device 9, the heat exchanger 12, the temperature control water tank 13 is connected to the control circuit through cables to form a complete lunar rover fuel cell power supply system. The oxygen control device 8 and the hydrogen control device 9 have the same structure, and are composed of a quick-insert self-locking connector 15, a main control valve 16, an intake pressure sensor 17, a proportional valve 18, a pressure relief valve 19, an outlet pressure sensor 20 and a shell 21. The main control valve 16, the intake pressure sensor 17, the proportional valve 18, the pressure relief valve 19, and the outlet pressure sensor 20 are arranged on the shell 21 and are sequentially connected to the inlet pipeline of the shell. The inlet of the shell is provided with a quick-insert self-locking connector 15. Among them,

[0026] The hydrogen fuel bottle 6 is connected to the inlet of the hydrogen control device 9 through a quick-insert self-locking connector 15, and the hydrogen fuel bottle 6 can be quickly replaced. The outlet of the hydrogen control device 9 is connected to the hydrogen inlet of the hydrogen-oxygen fuel cell stack 1 through a hydrogen pipeline, and the hydrogen outlet of the hydrogen-oxygen fuel cell stack 1 is connected to the inlet of the hydrogen circulation pump 3 through a hydrogen pipeline. A hydrogen-water separator 11 is provided on this section of the hydrogen pipeline for separating reaction water. The hydrogen-water separator 11 is connected to the water collecting tank 7 through a water pipe, and the outlet of the hydrogen circulation pump 3 is connected to the hydrogen inlet of the hydrogen-oxygen fuel cell stack 1 through a hydrogen pipeline;

[0027] The oxygen fuel bottle 5 is connected to the inlet of the oxygen control device 8 through a quick-insert self-locking joint 15, and the oxygen fuel bottle 5 can be quickly replaced. The outlet of the oxygen control device 8 is connected to the oxygen inlet of the hydrogen-oxygen fuel cell stack 1 through an oxygen pipeline, and the oxygen outlet of the hydrogen-oxygen fuel cell stack 1 is connected to the inlet of the oxygen circulation pump 2 through an oxygen pipeline. An oxygen-water separator 10 is provided on this section of the oxygen pipeline for separating reaction water. The oxygen-water separator 10 is connected to the water collecting tank 7 through a water pipe, and the outlet of the oxygen circulation pump 2 is connected to the oxygen inlet of the hydrogen-oxygen fuel cell stack 1 through an oxygen pipeline;

[0028] The outlet of the cooling water pump 4 is connected to the inlet of the heat exchanger 12 through a cooling pipeline, the outlet of the heat exchanger 12 is connected to the cooling inlet of the hydrogen and oxygen fuel cell stack 1 through a cooling pipeline, the cooling outlet of the hydrogen and oxygen fuel cell stack 1 is connected to the inlet of the cooling water pump 4 through a cooling pipeline, the inlet and outlet positions of the cooling water pump 4 are connected to the temperature control water tank 13 through a cooling pipeline, and a heating device 14 is arranged inside the temperature control water tank 13.

[0029] In the above mentioned lunar rover fuel cell power supply system:

[0030] The carbon fiber shell is used for structural and strength support of the system and provides fixed position and protection for various components of the system.

[0031] The hydrogen-oxygen fuel cell stack is used to provide electrical energy for the lunar rover fuel cell power supply system. It is the core component of the entire system and the location of the system's electrochemical reaction.

[0032] The hydrogen control device is used to supply hydrogen to the hydrogen-oxygen fuel cell stack and control the pressure and flow of the hydrogen in real time to ensure that there is sufficient hydrogen in the anode of the hydrogen-oxygen fuel cell stack.

[0033] The oxygen control device is used to supply oxygen to the hydrogen-oxygen fuel cell stack and simultaneously control the pressure and flow of oxygen in real time to ensure that there is sufficient oxygen at the cathode of the hydrogen-oxygen fuel cell stack.

[0034] The hydrogen circulation pump is used to discharge the reaction water from the anode of the hydrogen-oxygen fuel cell stack, and at the same time control the hydrogen flow rate in real time to ensure efficient hydrogen reaction at the anode of the hydrogen-oxygen fuel cell stack.

[0035] The oxygen circulation pump is used to discharge the reaction water from the cathode of the hydrogen-oxygen fuel cell stack, and at the same time control the oxygen flow rate in real time to ensure efficient oxygen reaction at the cathode of the hydrogen-oxygen fuel cell stack.

[0036] The hydrogen-water separator is used to separate the water and hydrogen mixture discharged from the hydrogen-oxygen fuel cell stack, thereby ensuring the moisture balance of the anode of the hydrogen-oxygen fuel cell stack and preventing the anode of the stack from being flooded.

[0037] The oxygen-water separator is used to separate the water and oxygen mixture discharged from the hydrogen-oxygen fuel cell stack, thereby ensuring the moisture balance of the cathode of the hydrogen-oxygen fuel cell stack and preventing the cathode of the stack from being flooded.

[0038] The cooling water pump is used to provide heat circulation for the heat exchanger.

[0039] The heat exchanger is used to provide heat dissipation support for the hydrogen-oxygen fuel cell stack to keep the stack at a good operating temperature at all times.

[0040] The temperature-controlled water tank is used to provide temperature control support for the hydrogen-oxygen fuel cell stack, so as to keep the stack at a certain temperature and operate stably in a low-temperature environment.

[0041] The water collecting box is a component for collecting water generated by the hydrogen-oxygen fuel cell stack reaction, and can effectively collect the reaction water.

[0042] The hydrogen fuel bottle is used to provide hydrogen for the hydrogen control device, and the component is a quickly disassembled component.

[0043] The oxygen fuel bottle is used to provide oxygen to the oxygen control device, and the component is a quickly disassembled component.

[0044] The control circuit controls and regulates the entire system. During operation, it monitors multiple parameters such as pressure signals, temperature signals, flow signals, safety signals, etc. in the system in real time, performs complex algorithm control, and ensures that the system operates efficiently and reliably.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention, which are all considered to be within the protection scope of the present invention.

Claims

1. A lunar rover fuel cell power supply system, characterized in that: The invention comprises a carbon fiber shell, wherein a hydrogen-oxygen fuel cell stack (1), an oxygen circulation pump (2), a hydrogen circulation pump (3), a cooling water pump (4), an oxygen fuel bottle (5), a hydrogen fuel bottle (6), a water collecting tank (7), an oxygen control device (8), a hydrogen control device (9), an oxygen-water separator (10), a hydrogen-water separator (11), a heat exchanger (12), a temperature-controlled water tank (13), a heating device (14) and a control circuit are integrated in the carbon fiber shell. The hydrogen-oxygen fuel cell stack (1), the oxygen circulation pump (2), the hydrogen circulation pump (3), the cooling water pump (4), the oxygen control device (8), the hydrogen control device (9), the heat exchanger (12) and the temperature-controlled water tank (13) are respectively connected to the control circuit through cables, wherein: The hydrogen fuel bottle (6) is connected to the inlet of the hydrogen control device (9), the outlet of the hydrogen control device (9) is connected to the hydrogen inlet of the hydrogen-oxygen fuel cell stack (1) through a hydrogen pipeline, the hydrogen outlet of the hydrogen-oxygen fuel cell stack (1) is connected to the inlet of the hydrogen circulation pump (3) through a hydrogen pipeline, a hydrogen-water separator (11) is provided on this section of the hydrogen pipeline, the hydrogen-water separator (11) is connected to the water collecting tank (7) through a water pipe, and the outlet of the hydrogen circulation pump (3) is connected to the hydrogen inlet of the hydrogen-oxygen fuel cell stack (1) through a hydrogen pipeline; The oxygen fuel bottle (5) is connected to the inlet of the oxygen control device (8), the outlet of the oxygen control device (8) is connected to the oxygen inlet of the hydrogen-oxygen fuel cell stack (1) through an oxygen pipeline, the oxygen outlet of the hydrogen-oxygen fuel cell stack (1) is connected to the inlet of the oxygen circulation pump (2) through an oxygen pipeline, an oxygen-water separator (10) is provided on this section of the oxygen pipeline, the oxygen-water separator (10) is connected to the water collecting tank (7) through a water pipe, and the outlet of the oxygen circulation pump (2) is connected to the oxygen inlet of the hydrogen-oxygen fuel cell stack (1) through an oxygen pipeline; The outlet of the cooling water pump (4) is connected to the inlet of the heat exchanger (12) through a cooling pipeline, the outlet of the heat exchanger (12) is connected to the cooling inlet of the hydrogen-oxygen fuel cell stack (1) through a cooling pipeline, the cooling outlet of the hydrogen-oxygen fuel cell stack (1) is connected to the inlet of the cooling water pump (4) through a cooling pipeline, the inlet and outlet positions of the cooling water pump (4) are connected to the temperature control water tank (13) through a cooling pipeline, and a heating device (14) is provided inside the temperature control water tank (13).

2. The lunar rover fuel cell power supply system according to claim 1, characterized in that: The oxygen control device (8) and the hydrogen control device (9) have the same structure, and are both composed of a quick-insert self-locking connector (15), a main control valve (16), an intake pressure sensor (17), a proportional valve (18), a pressure relief valve (19), an outlet pressure sensor (20) and a housing (21). The main control valve (16), the intake pressure sensor (17), the proportional valve (18), the pressure relief valve (19), and the outlet pressure sensor (20) are arranged on the housing (21) and are connected to the inlet pipeline of the housing in sequence. The inlet of the housing is provided with a quick-insert self-locking connector (15).

3. The lunar rover fuel cell power supply system according to claim 1 or 2, characterized in that: The hydrogen fuel bottle (6) is connected to the inlet of the hydrogen control device (9) via a quick-insert self-locking connector (15).

4. The lunar rover fuel cell power supply system according to claim 1 or 2, characterized in that: The oxygen fuel bottle (5) is connected to the inlet of the oxygen control device (8) via a quick-insert self-locking connector (15).

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