A lunar base hydrogen-oxygen rocket engine - turbine power generation system and its working method

Abstract

The present invention provides a lunar base hydrogen-oxygen rocket engine - turbine power generation system and its working method, belonging to the field of space energy. It solves the problem that the energy cannot be continuously and stably supplied during the day and night in the lunar base. It includes a circulating power generation loop, a water electrolysis hydrogen production loop, and a photovoltaic power generation loop; the circulating power generation loop includes a hydrogen gas tank, an oxygen gas tank, a hydrogen-oxygen rocket engine, a steam turbine, a hydrogen gas separator, a deep space radiation condenser, a water storage tank, and a compressor. The hydrogen gas tank and the oxygen gas tank are connected to the hydrogen-oxygen rocket engine. The hydrogen-oxygen rocket engine is connected to the steam turbine. The steam turbine is connected to the hydrogen gas separator. The hydrogen gas separator is connected to the compressor and the deep space radiation condenser. The compressor is connected to the hydrogen gas tank. The deep space radiation condenser is connected to the water storage tank. The circulating power generation loop operates continuously throughout the lunar day. During the lunar day, the photovoltaic power generation loop supplies power to the water electrolysis hydrogen production loop, and the water electrolysis hydrogen production loop produces hydrogen and oxygen. The present invention is applicable to the stable supply of energy during the day and night in the lunar base.

Description

Technical Field

[0001] The invention belongs to the field of space energy technology, and in particular relates to a lunar base hydrogen-oxygen rocket engine-turbine power generation system and a working method thereof. Background Art

[0002] Nowadays, the level of space technology has become one of the core standards for measuring a country's comprehensive strength. The development of space technology will guide the coordinated progress of politics, military, economy and other fields. As a frontier station for human exploration of outer space, the importance of the moon is self-evident. In addition, the moon is rich in mineral resources and energy, and has important military strategic significance. However, people's exploration of the moon is only in its early stages, and the understanding of the lunar environment still needs to be strengthened. The existing detection methods can no longer meet the requirements of subsequent lunar science and technology. It is an inevitable trend to build a lunar base to develop lunar resources.

[0003] It is worth noting that the lunar base has many functions (scientific research, space exploration transfer station, space observation station, etc.), which requires a large number of equipment to work together, mainly including: lunar surface base, all-terrain lunar rover, mobile living platform, lunar surface power system, etc. These equipment are all related to the production, transmission and application of electric energy, so the energy system is the key to the normal operation of the lunar base.

[0004] Due to the special characteristics of the lunar environment, photovoltaic panels cannot work on a moonlit night. The thermoelectric conversion efficiency of temperature difference power generation technology is too low, only about 10%. Although the regenerative fuel cell system has a high thermoelectric efficiency, it is still under development. More importantly, the hydrogen leakage problem restricts its use in the lunar environment. Therefore, it is urgent to find a suitable power generation system. Summary of the invention

[0005] In view of this, the present invention aims to propose a hydrogen-oxygen rocket engine-turbine power generation system for a lunar base to solve the problem of the inability to continuously and stably supply energy to the lunar base during the day and night.

[0006] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0007] A hydrogen-oxygen rocket engine-turbine power generation system for a lunar base, comprising a cyclic power generation loop, a water electrolysis hydrogen production loop and a photovoltaic power generation loop;

[0008] The described cyclic power generation loop includes a hydrogen tank (4), an oxygen tank (5), a hydrogen-oxygen rocket engine (6), a steam turbine (7), a hydrogen separator (8), a deep space radiation condenser (9), a water storage tank (10) and a compressor (13). The hydrogen tank (4) and the oxygen tank (5) are both connected to the inlet of the hydrogen-oxygen rocket engine (6). The outlet of the hydrogen-oxygen rocket engine (6) is connected to the inlet of the steam turbine (7). The outlet of the steam turbine (7) is connected to the inlet of the hydrogen separator (8). The hydrogen outlet of the hydrogen separator (8) is connected to the inlet of the compressor (13). The outlet of the compressor (13) is connected to the hydrogen tank (4). The water vapor outlet of the hydrogen separator (8) is connected to the inlet of the deep space radiation condenser (9). The outlet of the deep space radiation condenser (9) is connected to the inlet of the water storage tank (10);

[0009] The described electrolytic water hydrogen production loop includes an electrolytic water device (3), a valve (11) and a power component. The water outlet of the water storage tank (10) is connected to the liquid inlet of the electrolytic water device (3) through a pipeline. A power component and a valve (11) are arranged on the pipeline. The two outlets of the electrolytic water device (3) are respectively connected to the hydrogen tank (4) and the oxygen tank (5);

[0010] The described photovoltaic power generation loop includes a solar reflector (1) and a photovoltaic panel (2). The photovoltaic panel is separated from the solar reflector by a predetermined distance. The reflecting surface of the solar reflector (1) faces the photovoltaic panel (2). The photovoltaic panel (2) is electrically connected to the electrolytic water device (3).

[0011] Furthermore, the cyclic power generation loop provides day and night energy supply for the lunar base, and the cyclic power generation loop operates continuously throughout the lunar day.

[0012] Furthermore, during lunar day, the valve (11) is opened, and the liquid water generated by the cyclic power generation loop enters the electrolytic water device, and the electrolytic water hydrogen production loop works.

[0013] Furthermore, during lunar day, the electrolytic water device (3) produces the hydrogen and oxygen required during lunar day and lunar night.

[0014] Furthermore, the two outlets of the electrolytic water device (3) are respectively a first gas outlet and a second gas outlet. The first gas outlet is connected to the hydrogen tank (4), and the second gas outlet is connected to the oxygen tank (5).

[0015] Furthermore, a pump is respectively arranged on the pipeline between the outlet of the deep space radiation condenser (9) and the inlet of the water storage tank (10), on the pipeline between the outlet of the oxygen tank (5) and the inlet of the hydrogen-oxygen rocket engine (6), and on the pipeline between the outlet of the hydrogen tank (4) and the inlet of the hydrogen-oxygen rocket engine (6).

[0016] Further, the water storage tank (10) stores liquid under normal pressure.

[0017] Further, the power component is a water pump (12).

[0018] Further, the photovoltaic panel (2) is a gallium arsenide photovoltaic panel.

[0019] Another object of the present invention is to provide a working method for a lunar base hydrogen-oxygen rocket engine - turbine power generation system, which specifically includes:

[0020] During the lunar day and lunar night, the circulating power generation loop is always in a working state. First, hydrogen and oxygen are extracted from the hydrogen tank (4) and oxygen tank (5) and enter the hydrogen-oxygen rocket engine (6) to burn and generate steam. Then the steam enters the steam turbine (7), the steam expands and does work, generates electric energy and then becomes exhausted steam and enters the hydrogen separator (8). The separated hydrogen is pressurized by the compressor (13) and returned to the hydrogen tank (5). The remaining water vapor enters the deep space radiation condenser (9). The heat of the exhausted steam is transferred to deep space in the deep space radiation condenser (9). Finally, the exhausted steam is condensed into liquid and pumped into the water storage tank (10);

[0021] During the lunar day, the solar emitter (1) concentrates solar radiation on the photovoltaic panel (2), and the photovoltaic panel (2) powers the water electrolysis device (3);

[0022] During the lunar day, the valve (11) is opened, and the liquid water generated by the circulating power generation loop enters the water electrolysis hydrogen production equipment to produce high-pressure hydrogen and oxygen. During the lunar night, the valve (11) is closed, and the operation of the water electrolysis device (3) is stopped.

[0023] Compared with the prior art, the beneficial effects of the lunar base hydrogen-oxygen rocket engine - turbine power generation system described in the present invention are as follows:

[0024] (1) The lunar base hydrogen-oxygen rocket engine - turbine power generation system described in the present invention utilizes the hydrogen-oxygen rocket engine carried by the space vehicle, combines the water electrolysis hydrogen production equipment and the photovoltaic power generation system to form a new type of lunar base energy system, which not only reduces the carrying pressure of the space vehicle but also continuously provides energy for the lunar base.

[0025] (2) The lunar base hydrogen-oxygen rocket engine - turbine power generation system described in the present invention makes full use of the energy system of the space vehicle and introduces the water electrolysis hydrogen production equipment, and the system becomes a closed cycle, so that the system can continuously generate electric energy during both the lunar day and the lunar night. Description of the Drawings

[0026] The accompanying drawings, which form a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 It is a schematic structural diagram of a hydrogen-oxygen rocket engine-turbine power generation system for a lunar base according to an embodiment of the present invention.

[0028] Explanation of reference numerals:

[0029] 1. Solar reflector; 2. Photovoltaic panel; 3. Water electrolysis device; 4. Hydrogen tank; 5. Oxygen tank; 6. Hydrogen-oxygen rocket engine; 7. Steam turbine; 8. Hydrogen separator; 9. Deep space radiation condenser; 10. Water storage tank; 11. Valve; 12. Water pump; 13. Compressor. Detailed implementation manners

[0030] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] As shown Figure 1 in the figure, a lunar base hydrogen-oxygen rocket engine - turbine power generation system includes a circulating power generation loop, a water electrolysis hydrogen production loop, and a photovoltaic power generation loop;

[0035] The circulating power generation loop includes a hydrogen gas tank 4, an oxygen gas tank 5, a hydrogen-oxygen rocket engine 6, a steam turbine 7, a hydrogen gas separator 8, a deep space radiation condenser 9, a water storage tank 10, and a compressor 13. The hydrogen gas tank 4 and the oxygen gas tank 5 are both connected to the inlet of the hydrogen-oxygen rocket engine 6. The outlet of the hydrogen-oxygen rocket engine 6 is connected to the inlet of the steam turbine 7. The outlet of the steam turbine 7 is connected to the inlet of the hydrogen gas separator 8. The hydrogen gas outlet of the hydrogen gas separator 8 is connected to the inlet of the compressor 13. The outlet of the compressor 13 is connected to the hydrogen gas tank 4. The water vapor outlet of the hydrogen gas separator 8 is connected to the inlet of the deep space radiation condenser 9. The outlet of the deep space radiation condenser 9 is connected to the inlet of the water storage tank 10;

[0036] The water electrolysis hydrogen production loop includes a water electrolysis device 3, a valve 11, and a power component. The water outlet of the water storage tank 10 is connected to the liquid inlet of the water electrolysis device 3 through a pipeline. A power component and a valve 11 are arranged on the pipeline. The power component is a water pump 12. The two outlets of the water electrolysis device 3 are respectively connected to the hydrogen gas tank 4 and the oxygen gas tank 5;

[0037] The photovoltaic power generation loop includes a solar reflector 1 and a photovoltaic panel 2. The photovoltaic panel is separated from the solar reflector by a predetermined distance. The reflecting surface of the solar reflector 1 faces the photovoltaic panel 2. The photovoltaic panel 2 is electrically connected to the water electrolysis device 3.

[0038] The circulating power generation loop provides day and night energy supply for the lunar base, and the circulating power generation loop operates continuously throughout the lunar day. First, hydrogen and oxygen are extracted from the hydrogen gas tank 4 and the oxygen gas tank 5 and enter the hydrogen-oxygen rocket engine 6 for combustion. Chemical energy is converted into heat energy to generate high-temperature and high-pressure water vapor. Then, the high-temperature and high-pressure water vapor enters the steam turbine 7. The steam pushes the turbine and expands to do work, generating electric energy and then becoming exhausted steam. However, since it is a rich combustion process, the exhausted steam contains a certain amount of hydrogen, which needs to be separated. The hydrogen gas separator 8 and the compressor 13 are used to separate and pressurize the hydrogen and send it back to the hydrogen storage tank 4; the remaining water vapor enters the deep space radiation condenser 9, and the heat is transferred to deep space in the deep space radiation condenser 10. Finally, the exhausted steam is condensed into a liquid and pumped into the water storage tank 11; the water storage tank 10 stores the liquid at normal pressure, that is, the water storage tank 10 does not require too high a storage pressure and can be stored at normal pressure.

[0039] During the lunar day, valve 11 is opened, and the liquid water generated by the circulating power generation loop enters the electrolytic water device. The electrolytic water hydrogen production loop operates to produce high-pressure hydrogen and oxygen. However, this system can only operate during the lunar day. During the lunar night, valve (11) needs to be closed to stop the operation of the electrolytic water hydrogen production equipment 3. During the lunar day, the electrolytic water device 3 produces the hydrogen and oxygen required during the lunar day and night.

[0040] The function of the photovoltaic power generation loop is to supply the electric energy required by the electrolytic water hydrogen production equipment during the lunar day. The main function of the solar emitter 1 is to concentrate solar radiation on the photovoltaic panel 2. The photovoltaic panel 2 uses a gallium arsenide photovoltaic panel, and the photoelectric conversion efficiency can reach 30%. It stops working during the lunar night.

[0041] The two outlets of the electrolytic water device 3 are the first gas outlet and the second gas outlet respectively. The first gas outlet is connected to the hydrogen tank 4, and the second gas outlet is connected to the oxygen tank 5.

[0042] A pump is respectively provided on the pipeline between the outlet of the deep space radiation condenser 9 and the inlet of the water storage tank 10, on the pipeline between the outlet of the oxygen tank 5 and the inlet of the hydrogen-oxygen rocket engine 6, and on the pipeline between the outlet of the hydrogen tank 4 and the inlet of the hydrogen-oxygen rocket engine 6.

[0043] Another object of the present invention is to provide a working method for a hydrogen-oxygen rocket engine - turbine power generation system for a lunar base, including:

[0044] During the lunar day and night, the circulating power generation loop is always in a working state. First, hydrogen and oxygen are extracted from the hydrogen tank 4 and the oxygen tank 5 and enter the hydrogen-oxygen rocket engine 6 to burn and generate high-temperature and high-pressure steam. Then, the high-temperature and high-pressure steam enters the steam turbine 7, and the steam expands to do work. After generating electric energy, it becomes low-temperature and low-pressure exhausted steam and enters the hydrogen separator 8. The separated hydrogen is pressurized by the compressor 13 and returned to the hydrogen tank 5. The remaining water vapor enters the deep space radiation condenser 9. The heat of the exhausted steam is transferred to deep space in the deep space radiation condenser 9. Finally, the exhausted steam is condensed into a liquid and pumped into the water storage tank 10.

[0045] During the lunar day, the solar emitter 1 concentrates solar radiation on the photovoltaic panel 2, and the photovoltaic panel 2 supplies power to the electrolytic water device 3.

[0046] During the lunar day, valve 11 is opened, and the liquid water generated by the circulating power generation loop enters the electrolytic water hydrogen production equipment to produce high-pressure hydrogen and oxygen. During the lunar night, valve 11 is closed to stop the operation of the electrolytic water device 3.

[0047] A working method for a hydrogen-oxygen rocket engine - turbine power generation system for a lunar base specifically includes the following steps:

[0048] During the lunar day, valve 11 is opened. Hydrogen and oxygen burn in the hydrogen-oxygen rocket engine 6. The hydrogen-oxygen rocket engine acts as a steam generator, converting chemical energy into heat energy to generate high-temperature and high-pressure steam. Then, it expands and does work in the steam turbine 7 to generate electrical energy for use in the lunar base. After the hydrogen separator 8 separates hydrogen from the exhausted steam, the hydrogen is pressurized by the compressor 13 and returned to the hydrogen tank 4. The steam after hydrogen separation enters the deep-space radiation condenser 9 to transfer heat to deep space and is condensed into liquid water, which enters the water storage tank 10. Then, the liquid water is pumped into the electrolytic water device 3 to produce hydrogen and oxygen, which are respectively stored in the hydrogen tank 4 and the oxygen tank 5. This process belongs to the water regeneration process. During the lunar night, due to the absence of solar radiation, the electrolytic water hydrogen production loop is closed, but the power generation loop continues during both the lunar day and the lunar night;

[0049] The hydrogen-oxygen rocket engine 6 is installed inside the space vehicle. When the space vehicle reaches the moon, the hydrogen-oxygen rocket engine 6 is installed in the power generation cycle system of the lunar base as the main power equipment, reducing the carrying mass of the space vehicle and the launch pressure;

[0050] Since the photovoltaic panel 2 is difficult to generate electrical energy at night, the electrolytic water hydrogen production loop cannot work at night. Therefore, it is necessary to produce two portions of hydrogen and oxygen during the lunar day to supply the lunar day and the lunar night respectively;

[0051] The deep-space radiation condenser 9 is a radiator that combines radiation and condensation. It not only plays a role in condensing the exhausted steam in the system but also plays a role in dissipating heat to deep space. It is composed of multiple single radiation plates connected to form a large-area radiation plate to radiate heat to deep space, and heat pipes are selected as its enhanced heat transfer means;

[0052] The electrolysis method of the electrolytic water hydrogen production device 3 is alkaline water electrolysis, and the purity of hydrogen produced by alkaline water electrolysis reaches 99.99%. At the same time, it has the ability to pressurize and can increase the pressure to 20 Mpa;

[0053] In order to protect the normal operation of the turbine, it is necessary to reduce the inlet temperature of the steam turbine 7. The hydrogen-oxygen combustion process inside the hydrogen-oxygen rocket engine 6 belongs to a fuel-rich process.

[0054] A hydrogen-oxygen rocket engine - turbine power generation system for a lunar base according to the present invention fully utilizes the energy system of the space vehicle and introduces an electrolytic water device, making the system a closed cycle, so that the system can continuously generate electrical energy during both the lunar day and the lunar night.

[0055] The embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. According to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention.

Claims

1. A hydrogen-oxygen rocket engine - turbine power generation system for a lunar base, characterized in that: it includes a circulating power generation loop, a water electrolysis hydrogen production loop, and a photovoltaic power generation loop; the circulating power generation loop includes a hydrogen gas tank (4), an oxygen gas tank (5), a hydrogen-oxygen rocket engine (6), a steam turbine (7), a hydrogen separator (8), a deep space radiation condenser (9), a water storage tank (10), and a compressor (13). The hydrogen gas tank (4) and the oxygen gas tank (5) are both connected to the inlet of the hydrogen-oxygen rocket engine (6). The outlet of the hydrogen-oxygen rocket engine (6) is connected to the inlet of the steam turbine (7). The outlet of the steam turbine (7) is connected to the inlet of the hydrogen separator (8). The hydrogen outlet of the hydrogen separator (8) is connected to the inlet of the compressor (13). The outlet of the compressor (13) is connected to the hydrogen gas tank (4). The water vapor outlet of the hydrogen separator (8) is connected to the inlet of the deep space radiation condenser (9). The outlet of the deep space radiation condenser (9) is connected to the inlet of the water storage tank (10); the water electrolysis hydrogen production loop includes a water electrolysis device (3), a valve (11), and a power component. The water outlet of the water storage tank (10) is connected to the liquid inlet of the water electrolysis device (3) through a pipeline. A power component and a valve (11) are arranged on the pipeline. The two outlets of the water electrolysis device (3) are respectively connected to the hydrogen gas tank (4) and the oxygen gas tank (5); the photovoltaic power generation loop includes a solar reflector (1) and a photovoltaic panel (2). The photovoltaic panel is separated from the solar reflector by a predetermined distance. The reflecting surface of the solar reflector (1) faces the photovoltaic panel (2). The photovoltaic panel (2) is electrically connected to the water electrolysis device (3).

2. The hydrogen-oxygen rocket engine - turbine power generation system for a lunar base according to claim 1, characterized in that: the circulating power generation loop provides day and night energy supply for the lunar base, and the circulating power generation loop operates continuously throughout the lunar day.

3. The hydrogen-oxygen rocket engine - turbine power generation system for a lunar base according to claim 1, characterized in that: During the lunar day, the valve (11) is opened, and the liquid water generated by the circulating power generation loop enters the water electrolysis device, and the water electrolysis hydrogen production loop operates.

4. The hydrogen-oxygen rocket engine - turbine power generation system for a lunar base according to claim 3, characterized in that: During the lunar day, the water electrolysis device (3) produces the hydrogen and oxygen required during the lunar day and lunar night.

5. The hydrogen-oxygen rocket engine - turbine power generation system for a lunar base according to claim 1, characterized in that: The two outlets of the water electrolysis device (3) are respectively a first gas outlet and a second gas outlet. The first gas outlet is connected to the hydrogen gas tank (4), and the second gas outlet is connected to the oxygen gas tank (5).

6. The hydrogen-oxygen rocket engine - turbine power generation system for a lunar base according to claim 1, characterized in that: A pump is respectively provided on the pipeline between the outlet of the deep space radiation condenser (9) and the inlet of the water storage tank (10), on the pipeline between the outlet of the oxygen tank (5) and the inlet of the hydrogen-oxygen rocket engine (6), and on the pipeline between the outlet of the hydrogen tank (4) and the inlet of the hydrogen-oxygen rocket engine (6).

7. A lunar base hydrogen-oxygen rocket engine - turbine power generation system according to claim 1, characterized in that: The water storage tank (10) stores the liquid at normal pressure.

8. A lunar base hydrogen-oxygen rocket engine - turbine power generation system according to claim 1, characterized in that: The power component is a water pump (12).

9. A lunar base hydrogen-oxygen rocket engine - turbine power generation system according to claim 1, characterized in that: The photovoltaic panel (2) uses a gallium arsenide photovoltaic panel.

10. A working method of a lunar base hydrogen-oxygen rocket engine - turbine power generation system according to any one of claims 1-9, characterized in that: Specifically, it includes: During the lunar day and lunar night, the circulating power generation loop is always in a working state. First, hydrogen and oxygen are extracted from the hydrogen tank (4) and the oxygen tank (5) and enter the hydrogen-oxygen rocket engine (6) to burn and generate steam. Then the steam enters the steam turbine (7), the steam expands and does work, generates electric energy and then becomes exhausted steam and enters the hydrogen separator (8). The separated hydrogen is pressurized by the compressor (13) and returned to the hydrogen tank (5). The remaining water vapor enters the deep space radiation condenser (9). The heat of the exhausted steam is transferred to deep space in the deep space radiation condenser (9). Finally, the exhausted steam is condensed into a liquid and pumped into the water storage tank (10); During the lunar day, the solar emitter (1) focuses solar radiation on the photovoltaic panel (2), and the photovoltaic panel (2) supplies power to the water electrolysis device (3); During the lunar day, the valve (11) is opened, and the liquid water generated by the circulating power generation loop enters the water electrolysis hydrogen production equipment to generate high-pressure hydrogen and oxygen. During the lunar night, the valve (11) is closed, and the operation of the water electrolysis device (3) is stopped.

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