CN114448099A - Lunar base energy storage system based on lunar soil filling type flywheel - Google Patents
Lunar base energy storage system based on lunar soil filling type flywheel Download PDFInfo
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- 238000004146 energy storage Methods 0.000 title claims abstract description 109
- 239000002689 soil Substances 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 128
- 239000000725 suspension Substances 0.000 claims description 44
- 239000000446 fuel Substances 0.000 claims description 13
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- 238000010248 power generation Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 13
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- 238000011065 in-situ storage Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/20—Systems characterised by their energy storage means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/007—Systems for storing electric energy involving storage in the form of mechanical energy, e.g. fly-wheels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/02—Additional mass for increasing inertia, e.g. flywheels
- H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
A lunar base energy storage system based on a lunar soil filling type flywheel relates to the field of space energy storage. The invention aims to solve the problem that a chemical storage system is limited by the service life of a battery and the charging and discharging depth, and the emission cost is high due to the fact that an electric storage system, a thermal storage system and a flywheel energy storage system are too heavy. The invention is mainly used for energy storage at night in the lunar base.
Description
Technical Field
The invention relates to the field of space energy storage, in particular to a lunar base energy storage system based on a lunar soil filling type flywheel.
Background
The construction of a lunar base and the deep development of lunar exploration are inevitable trends of the subsequent deep space exploration and development of China, an energy system is a basic condition for maintaining the normal work of the lunar base, and the energy system is also an important component of the lunar base in various planning and demonstration and is used as a core key technology of base design. The lunar base energy system must meet the following basic requirements: the device is suitable for lunar environment, stably operates for a long time, has large output power, and is clean and pollution-free. The primary-stage lunar base energy source is mainly solar energy, and the common problem of the energy storage system is to solve the efficient storage of the solar energy, which is also a key technology for designing the lunar base energy system. The storage of solar energy in lunar bases is classified into 4 types of electrical storage, thermal storage, chemical storage and mechanical storage according to the working principle of energy storage materials. The primary lunar base does not have the capability of full load operation during the evening, but the basic functions of state monitoring, data management and communication are still required, the electric power is at least 1.5kW, namely, the electric quantity demand of the lunar base during the evening is at least 500 kWh. Storing 500kWh of electrical energy requires at least 3.5t of weight of the battery or energy storage material, depending on the current storage density of the battery or energy storage material, which is an unacceptable weight resource for primary-stage lunar bases. Chemical energy storage also faces the problem of not being able to provide a long-term and stable power output. The mechanical flywheel energy storage breaks through the limitation, and the energy storage is realized by a physical method. Due to rapid charging and discharging, independent and stable energy output, large energy storage density, small operation loss and less maintenance, the flywheel technology is continuously applied to solar energy storage batteries of satellite devices and space stations as an energy supply center. However, the emission cost of the flywheel mass block is high, and a single flywheel energy storage unit cannot meet the night energy requirement of the lunar base, so that based on the in-situ manufacturing concept, it is necessary to research a lunar base energy storage system based on a lunar soil filling type flywheel.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the conventional lunar base is often limited by the service life of a battery and the charging and discharging depth of a chemical storage system, and the problems of high emission cost caused by overlarge weight of an electric storage system, a thermal storage system and a flywheel energy storage system exist, so that the lunar base energy storage system based on the lunar soil filling type flywheel is further provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a lunar base energy storage system based on lunar soil filling type flywheel comprises a plurality of groups of energy storage flywheel sets, a fuel cell, a plurality of groups of solar cell sets and a lead, wherein the energy storage flywheel sets and the fuel cell are connected in parallel and are positioned in a moon pit; the multiple groups of energy storage flywheel groups and the fuel cells are connected with the multiple groups of solar cell groups through leads; the energy storage flywheel set comprises N sets of energy storage units, a motor, a driving gear, a transmission gear, a driving shaft, an axial magnetic suspension base, an axial magnetic suspension body and a support frame; the axial magnetic suspension base is arranged in the middle of the bottom of the support frame, the bottom end of the driving shaft is inserted on the axial magnetic suspension base and can rotate, and the top end of the driving shaft is inserted on the top end of the support frame and extends out; the transmission gear and the axial magnetic suspension body are sequentially sleeved on the driving shaft from top to bottom, the axial magnetic suspension body is opposite to the axial magnetic suspension base to form an axial magnetic suspension bearing, the motor is arranged in the support frame, the end part of an output shaft of the motor is provided with a driving gear, and the driving gear is meshed with the transmission gear; the energy storage units of the N groups are arranged side by side from top to bottom and connected in an inserting mode, the energy storage unit at the bottom is inserted above the support frame, and the top end of the driving shaft sequentially penetrates through the energy storage units of the N groups and drives the energy storage units to rotate.
Furthermore, each group of energy storage units comprises a flywheel support frame, two bearings and a filling type flywheel, the two bearings are respectively inserted into the bottom and the top of the flywheel support frame and are arranged oppositely, the upper end of the driving shaft sequentially penetrates through the bearings at the bottom of the flywheel support frame and the bearings at the top of the flywheel support frame, and the filling type flywheel is sleeved on the driving shaft.
Furthermore, the driving shaft comprises a main transmission shaft and a plurality of sections of extension transmission shafts, the number of the extension transmission shafts is N-1, and in N-1 groups of energy storage units from top to bottom, each group of energy storage units corresponds to one section of extension transmission shaft; the bottom end of the main transmission shaft is inserted on the axial magnetic suspension base, the top end of the main transmission shaft is inserted in a bearing at the top of the flywheel support frame at the lowest part and extends out, and the filling type flywheel at the lowest part is sleeved on the main transmission shaft; the bottom end of the extension transmission shaft is inserted into and extends out of a bearing at the bottom of the flywheel support frame, the top end of the extension transmission shaft is inserted into and extends out of a bearing at the top of the flywheel support frame, and the filling type flywheel is sleeved on the extension transmission shaft; the top end of the main transmission shaft extending out is inserted with the bottom end of the extension transmission shaft above the main transmission shaft; in N-1 groups of energy storage units from top to bottom, the top end extending out of the extension transmission shaft at the lower part and the bottom end extending out of the extension transmission shaft at the upper part in two adjacent groups of energy storage units are connected in an inserting manner.
Furthermore, a cross key groove is formed in the top end of each extending transmission shaft, a cross key is arranged at the bottom end of each extending transmission shaft, and the cross key at the bottom end of each extending transmission shaft is matched with the cross key groove at the top end of the adjacent extending transmission shaft for use; the top end of the main transmission shaft is provided with a cross key slot which is matched with the cross key at the bottom end of the adjacent extension transmission shaft for use.
Furthermore, a plurality of flat keys are circumferentially arranged on the outer wall of the extension transmission shaft at intervals, each flat key is a long strip-shaped boss, and the length direction of each flat key is the same as the axial direction of the extension transmission shaft; the middle upper section of the main transmission shaft is provided with a plurality of flat keys, the flat keys are strip-shaped bosses, and the length direction of the flat keys is the same as the axis direction of the main transmission shaft.
Furthermore, a limiting plate is sleeved on the extension transmission shaft, is positioned at the bottom ends of the plurality of flat keys and is fixedly connected with the extension transmission shaft; and a limiting plate is also arranged at the bottom ends of the flat keys on the main transmission shaft.
Furthermore, the axial magnetic suspension base is an electromagnet, and the axial magnetic suspension is a permanent magnet.
Furthermore, the flywheel support frame comprises four upright posts and two cross-shaped support frames which are vertically arranged, the two cross-shaped support frames are arranged at intervals in an up-down opposite mode, two support legs which are opposite to each other up and down are fixedly connected through one upright post, the top end of each upright post is provided with a mounting hole, and the bottom end of each upright post is inserted with a mounting pin; two adjacent flywheel support frames are inserted into each other through the mounting pin on the flywheel support frame positioned above and the mounting hole on the flywheel support frame positioned below.
Further, filled formula flywheel include upper cover plate, flywheel box and apron down, the flywheel box be compressible folding tubular structure, the upper cover plate install in the top of flywheel box, the apron is installed in the below of flywheel box down, upper cover plate and apron are sealed the ring shape cavity structure that has the through-hole for the centre with the flywheel box down, the cross section of through-hole be the cross structure.
Furthermore, the upper cover plate and the lower cover plate are high-strength discs, and two lunar soil filling ports are formed in the upper cover plate.
Compared with the prior art, the invention has the following beneficial effects:
1. the flywheel energy storage device adopts the longitudinal unit type distribution of the flywheel, realizes the expansion and compression of the energy storage capacity through the integrated flywheel energy storage units connected in series and in parallel, can additionally install and disassemble the flywheel units or increase and decrease flywheel groups according to the energy storage requirement to realize the expansion and compression of the energy storage, and has flexible and changeable capacity of the energy storage system;
2. the foldable flywheel box in the filling type flywheel is in a folded state in the transportation process, lunar soil is filled into the foldable flywheel box through the lunar soil filling port after the foldable flywheel box reaches an installation site, so that the foldable flywheel box is in an extended state, and the problem of high emission cost of the flywheel mass block is solved by using local materials of the lunar soil.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of an energy storage flywheel assembly;
FIG. 3 is an isometric view of an energy storing flywheel assembly;
FIG. 4 is a schematic diagram of an energy storage unit;
FIG. 5 is a schematic structural diagram of a flywheel support frame;
FIG. 6 is a schematic view of the structure of the extension shaft;
FIG. 7 is a schematic structural diagram of a packed flywheel;
fig. 8 is a schematic structural diagram of the packed flywheel in a compressed state.
In the figure, 1-flywheel energy storage set; 2-a fuel cell; 3-a solar cell array; 4-a wire; 5-moon pit; 6-an energy storage unit; 6-1-flywheel support frame; 6-1-1-column; 6-1-2-cross support frame; 6-1-3-mounting holes; 6-1-4-mounting pins; 6-2-bearing; 6-3-a packed flywheel; 6-3-1-upper cover plate; 6-3-2-flywheel box; 6-3-3-lower cover plate; 6-3-4-via; 6-3-5-lunar soil filling port; 7-an electric motor; 8-a drive gear; 9-a transmission gear; 10-driving shaft; 10-1-main drive shaft; 10-2-extension drive shaft; 10-2-1-cross key groove; 10-2-2-cross bond; 10-2-3-parallel bond; 10-2-4-limiting plate; 11-axial magnetic suspension base; 12-axial magnetic suspension; 13-support frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 8, an embodiment of the present application provides a lunar base energy storage system based on lunar soil filling type flywheels, including multiple sets of energy storage flywheel sets 1 connected in parallel, fuel cells 2, multiple sets of solar cell sets 3 connected in parallel, and wires 4, where the energy storage flywheel sets 1 and the fuel cells 2 are located in a circular moon pit 5 of a preliminary repair, the multiple sets of energy storage flywheel sets 1 and the fuel cells 2 are connected with the multiple sets of solar cell sets 3 located outside the moon pit 5 through the wires 4, and a lunar base 15 is connected with the multiple sets of energy storage flywheel sets 1 and the multiple sets of solar cell sets 3 through the wires 4 respectively; the energy storage flywheel set 1 and the fuel cell 2 complement each other, and the energy storage flywheel set 1 is used as a main energy storage unit; in the daytime, the solar battery pack 3 supplies power to the lunar base 15, and in the night, the energy storage flywheel set 1 supplies power to the lunar base 15; the solar battery pack 3 is a power source of the whole energy storage system, the solar battery pack 3 converts solar energy into electric energy by using a solar panel, a permanent magnet brushless direct current motor drives a flywheel to rotate at an accelerated speed, the flywheel rotating at a high speed converts the electric energy into gravitational potential energy and kinetic energy to be stored, during the moonlight, a flywheel rotor converts the gravitational potential energy and the kinetic energy stored by the high-speed rotation into the electric energy to be released, the flywheel decelerates continuously, the energy is released continuously, and the permanent magnet brushless direct current motor driving the flywheel to rotate at a high speed operates as a generator to supply power to the moonlight base 15;
the energy storage flywheel set 1 comprises N sets of energy storage units 6, a motor 7, a driving gear 8, a transmission gear 9, a driving shaft 10, an axial magnetic suspension base 11, an axial magnetic suspension body 12, a support frame 13 and a bearing, wherein the support frame 13 is a circular hollow base, a cross-shaped framework is arranged above the inside of the circular ring, and four support columns are circumferentially arranged at the edge of the support frame 13 at intervals of 90 degrees;
the axial magnetic suspension base 11 is arranged in the middle of the bottom of the support frame 13, the bearing is inserted in the middle of the cross-shaped framework at the top of the support frame 13, the bottom end of the driving shaft 10 is inserted in the axial magnetic suspension base 11, and the top end of the driving shaft 10 is inserted in the bearing at the top end of the support frame 13 and extends out; the transmission gear 9 and the axial magnetic suspension body 12 are sequentially sleeved on the driving shaft 10 from top to bottom, the axial magnetic suspension body 12 is opposite to the axial magnetic suspension base 11 and forms an axial magnetic suspension bearing, the motor 7 is installed in the support frame 13, the end part of an output shaft of the motor 7 is provided with a driving gear 8, and the driving gear 8 is meshed with the transmission gear 9; the solar battery pack 3 supplies power to the motor 7, an output shaft of the motor 7 drives the driving gear 8 to rotate, the driving gear 8 drives the transmission gear 9 meshed with the driving gear to rotate, the driving shaft 10 is further driven to rotate, and the driving shaft 10 transmits kinetic energy to the energy storage unit 6; the fuel cell 2 supplies power to the axial magnetic suspension base 11;
the N groups of energy storage units 6 are arranged side by side from top to bottom and are connected in an inserting manner, the energy storage unit 6 at the bottom is inserted above the support frame 13, the top end of the driving shaft 10 sequentially penetrates through the N groups of energy storage units 6 and drives the energy storage units 6 to rotate, and the energy storage capacity of the energy storage flywheel group 1 is increased along with the increase of the number of the energy storage units 6;
in the present embodiment, N.gtoreq.1.
In a possible implementation scheme, each group of energy storage units 6 comprises a flywheel support frame 6-1, two bearings 6-2 and a filled flywheel 6-3, the two bearings 6-2 are respectively inserted at the bottom and the top of the flywheel support frame 6-1 and are oppositely arranged, the upper end of the driving shaft 10 sequentially penetrates through the bearing 6-2 at the bottom of the flywheel support frame 6-1 and the bearing 6-2 at the top of the flywheel support frame 6-1, and the filled flywheel 6-3 is sleeved on the driving shaft 10;
in the embodiment, the motor 7 drives the driving shaft 10 to rotate, so as to drive the filling type flywheel 6-3 connected with the driving shaft to rotate, and the energy storage of the filling type flywheel 6-3 is realized.
In a possible embodiment, the driving shaft 10 is of a sectional structure and comprises a main transmission shaft 10-1 and a plurality of sections of extension transmission shafts 10-2, the number of the extension transmission shafts 10-2 is N-1, and in N-1 groups of energy storage units 6 from top to bottom, each group of energy storage units 6 corresponds to one section of extension transmission shaft 10-2, namely, except that the lowest energy storage unit 6 is not provided with the extension transmission shaft 10-2, and the rest energy storage units 6 are provided with one section of extension transmission shaft 10-2; the bottom end of the main transmission shaft 10-1 is inserted on the axial magnetic suspension base 11, the top end of the main transmission shaft 10-1 is inserted in and extends out of a bearing 6-2 at the top of the lowermost flywheel support frame 6-1, and the lowermost filled flywheel 6-3 is sleeved on the main transmission shaft 10-1;
the bottom end of the extension transmission shaft 10-2 is inserted into and extends out of the bearing 6-2 at the bottom of the flywheel support frame 6-1, the top end of the extension transmission shaft 10-2 is inserted into and extends out of the bearing 6-2 at the top of the flywheel support frame 6-1, and the filled flywheel 6-3 is sleeved on the extension transmission shaft 10-2;
the top end extending out of the main transmission shaft 10-1 and the bottom end extending out of the extension transmission shaft 10-2 above the main transmission shaft are inserted together; in N-1 groups of energy storage units 6 from top to bottom, the top end extending out of the extension transmission shaft 10-2 at the lower part of the two adjacent groups of energy storage units 6 is connected with the bottom end extending out of the extension transmission shaft 10-2 at the upper part thereof in a plug-in mounting manner.
In this embodiment, when the quantity of energy storage unit only had when a set of, the driving shaft is final drive shaft promptly so, through the rotation of the filled formula flywheel in the driving shaft drive energy storage unit can, when the quantity of energy storage unit is greater than 1 group, so with the driving shaft setting segmentation structure, make things convenient for the dismantlement of energy storage unit, can just set up the energy storage unit into a set of with the selection, also can set up the energy storage unit into the multiunit.
In a possible embodiment, the top end of the extension transmission shaft 10-2 is provided with a cross-shaped key groove 10-2-1, the bottom end of the extension transmission shaft 10-2 is provided with a cross-shaped key 10-2-2, and the cross-shaped key 10-2-2 at the bottom end of the extension transmission shaft 10-2 is matched with the cross-shaped key groove 10-2-1 at the top end of the adjacent extension transmission shaft 10-2 for use; the top end of the main transmission shaft 10-1 is provided with a cross key slot which is matched with the cross key 10-2-2 at the bottom end of the adjacent extension transmission shaft 10-2 for use.
In the embodiment, the main transmission shaft 10-1 and the extension transmission shafts 10-2 and the two adjacent extension transmission shafts 10-2 are connected in a cross key and cross key groove mode, so that the connection stability is ensured, and the disassembly is convenient;
in this embodiment, the connection end of the main transmission shaft 10-1 and the extension transmission shaft 10-2 and the connection end between two adjacent extension transmission shafts 10-2 are sleeved with a limiting sleeve to prevent the main transmission shaft 10-1 and the extension transmission shaft 10-2 or two adjacent extension transmission shafts 10-2 from being separated and dislocated.
In a possible embodiment, a plurality of flat keys 10-2-3 are circumferentially arranged on the outer wall of the extension transmission shaft 10-2 at intervals, the flat keys 10-2-3 are strip-shaped bosses, and the length direction of the flat keys 10-2-3 is the same as the axial direction of the extension transmission shaft 10-2; the preferable four flat keys 10-2-3 are arranged at intervals of 90 degrees along the circumference; the middle upper section of the main transmission shaft 10-1 is provided with a plurality of flat keys, the flat keys are strip-shaped bosses, the length direction of the flat keys is the same as the axial direction of the main transmission shaft 10-1, the four flat keys are preferably arranged, and the four flat keys are arranged at intervals of 90 degrees along the circumference.
In the embodiment, the main transmission shaft 10-1 and the extension transmission shaft 10-2 are fixedly connected with the filling type flywheel 6-3 in a flat key mode, so that the filling type flywheel 6-3 is convenient to mount, the filling type flywheel 6-3 and the main transmission shaft 10-1 or the extension transmission shaft 10-2 cannot move, and the consistency of rotation between the filling type flywheel 6-3 and the main transmission shaft 10-1 or the extension transmission shaft 10-2 is ensured.
In a possible embodiment, a limiting plate 10-2-4 is sleeved on the extension transmission shaft 10-2, and the limiting plate 10-2-4 is fixed on the extension transmission shaft 10-2 and is positioned at the bottom end of the plurality of flat keys 10-2-3; the bottom ends of the flat keys on the main transmission shaft 10-1 are also provided with a limiting plate.
In the embodiment, the limit plate 10-2-4 is used for supporting the filling type flywheel 6-3.
In a possible embodiment, the axial magnetic suspension base 11 is an electromagnet, and the axial magnetic suspension body 12 is a permanent magnet;
in the embodiment, the axial magnetic suspension base 11 and the axial magnetic suspension 12 jointly form the axial magnetic suspension bearing, the supporting force of the axial magnetic suspension bearing can be controlled by the size of the magnetic field of the axial magnetic suspension base 11, and when the number of the energy storage units is increased in the energy storage flywheel set, the size of the current provided by the fuel cell 2 for the axial magnetic suspension base 11 can be increased, so that the magnetic field of the axial magnetic suspension base 11 is controlled, and the supporting force of the axial magnetic suspension bearing is improved.
In a possible embodiment, the flywheel support frame 6-1 comprises four upright posts 6-1-1 and two cross-shaped support frames 6-1-2 which are vertically arranged, the two cross-shaped support frames 6-1-2 are arranged at intervals up and down, two support legs which are opposite up and down of the two cross-shaped support frames 6-1-2 are fixedly connected through one upright post 6-1-1, the support leg of the cross-shaped support frame 6-1-2 which is positioned at the lower part is connected with the bottom end of the upright post 6-1-1, and the support leg of the cross-shaped support frame 6-1-2 which is positioned at the upper part is connected with the upper middle position of the upright post 6-1-1; the connection point of two adjacent extension transmission shafts 10-2 is positioned in a space formed between two adjacent flywheel support frames 6-1;
the top end of each upright post 6-1-1 is provided with a mounting hole 6-1-3, and the bottom end of each upright post 6-1-1 is inserted with a mounting pin 6-1-4; the aperture of the mounting hole 6-1-3 is slightly larger than the outer diameter of the mounting pin 6-1-4;
two adjacent flywheel support frames 6-1 are inserted together through mounting pins 6-1-4 on the flywheel support frame 6-1 positioned above and mounting holes 6-1-3 on the flywheel support frame 6-1 positioned below;
the top ends of the four support columns of the support frame 13 are provided with mounting holes, and the flywheel support frame 6-1 above the mounting holes is inserted in the support frame 13 through mounting pins 6-1-4 at the bottom end.
In a possible embodiment, the filled flywheel 6-3 comprises an upper cover plate 6-3-1, a flywheel box 6-3-2 and a lower cover plate 6-3-3, the flywheel box 6-3-2 is of a compressible and foldable cylindrical structure, the upper cover plate 6-3-1 is installed above the flywheel box 6-3-2, the lower cover plate 6-3-3 is installed below the flywheel box 6-3-2, the flywheel box 6-3-2 is sealed by the upper cover plate 6-3-1 and the lower cover plate 6-3-3 into a circular cavity structure with a through hole 6-3-4 in the middle, and the cross section of the through hole 6-3-4 is of a cross structure.
In the embodiment, the filling type flywheel 6-3 is arranged to be of a circular cavity structure and is in a compressible folding form, so that the flywheel box is convenient to be in a folding state in the transportation process, and lunar soil is filled into the foldable flywheel box to enable the foldable flywheel box to be in an extending state after the foldable flywheel box reaches an installation site, and the problem of high emission cost of the flywheel mass block is solved due to the local material of the lunar soil;
in the embodiment, the through hole 6-3-4 is set to be in a cross structure in order to be matched with the flat key on the main transmission shaft and the extension transmission shaft, when the filled flywheel 6-3 is sleeved on the extension transmission shaft 10-2, the extension transmission shaft 10-2 penetrates out of the cross-shaped holes at the circle centers of the upper cover plate 6-3-1 and the lower cover plate 6-3-3 until the lower cover plate 6-3-3 of the filled flywheel 6-3 is contacted with the upper plate surface of the limit plate 10-2-4 to complete the fixation of the filled flywheel 6-3, the synchronous rotation of the extension transmission shaft 10-2 and the filling type flywheel 6-3 is realized through the occlusion of a plurality of flat keys 10-2-3 and cross-shaped holes at the circle centers of the upper cover plate 6-3-1 and the lower cover plate 6-3-3.
In a possible embodiment, the upper cover plate 6-3-1 and the lower cover plate 6-3-3 are high-strength discs, and two lunar soil filling ports 6-3-5 are formed in the upper cover plate 6-3-1.
The working principle of the invention is as follows:
the motor 7 is connected with the solar battery pack 3 through the lead 4, during energy storage, the lead 4 inputs electric energy inwards, an output shaft of the motor 7 drives the driving gear 8 to rotate, the driving gear 8 drives the transmission gear 9 meshed with the driving gear to rotate, the main transmission shaft 10-1 and the extension transmission shaft 10-2 connected with the main transmission shaft 10-1 in an inserted mode are further driven to rotate, the main transmission shaft 10-1 and the extension transmission shaft 10-2 drive the filling type flywheel 6-3 to rotate to complete energy storage, during energy discharge, the filling type flywheel 6-3 drives the main transmission shaft 10-1 and the extension transmission shaft 10-2 to rotate, the main transmission shaft 10-1 drives the transmission gear 9 and the driving gear 8 to rotate, the motor 7 is further driven to complete discharge, and electric energy is output through the lead 4.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (10)
1. A lunar base energy storage system based on a lunar soil filling type flywheel is characterized in that: the solar energy-storage power generation device comprises a plurality of groups of energy-storage flywheel sets (1) connected in parallel, fuel cells (2), a plurality of groups of solar battery sets (3) connected in parallel and wires (4), wherein the energy-storage flywheel sets (1) and the fuel cells (2) are positioned in a moon pit (5); the multiple energy storage flywheel sets (1) and the fuel cell (2) are connected with the multiple solar battery sets (3) through leads (4);
the energy storage flywheel set (1) comprises N groups of energy storage units (6), an electric motor (7), a driving gear (8), a transmission gear (9), a driving shaft (10), an axial magnetic suspension base (11), an axial magnetic suspension body (12) and a support frame (13); the axial magnetic suspension base (11) is arranged in the middle of the bottom of the support frame (13), the bottom end of the driving shaft (10) is inserted on the axial magnetic suspension base (11) and can rotate, and the top end of the driving shaft (10) is inserted on the top end of the support frame (13) and extends out; the transmission gear (9) and the axial magnetic suspension body (12) are sequentially sleeved on the driving shaft (10) from top to bottom, the axial magnetic suspension body (12) and the axial magnetic suspension base (11) are oppositely arranged to form an axial magnetic suspension bearing, the motor (7) is arranged in the support frame (13), the end part of an output shaft of the motor (7) is provided with a driving gear (8), and the driving gear (8) is meshed with the transmission gear (9);
the energy storage unit (6) of N group from top to bottom set up side by side to connect through the mode of cartridge, energy storage unit (6) cartridge in the bottom is in the top of support frame (13), the top of driving shaft (10) pass N group energy storage unit (6) in proper order and drive the rotation of energy storage unit (6).
2. The lunar base energy storage system based on the lunar soil filling type flywheel according to claim 1, wherein: each group of energy storage units (6) comprises a flywheel support frame (6-1), two bearings (6-2) and a filled flywheel (6-3), the two bearings (6-2) are respectively inserted at the bottom and the top of the flywheel support frame (6-1) and are oppositely arranged, the upper end of the driving shaft (10) sequentially penetrates through the bearings (6-2) at the bottom of the flywheel support frame (6-1) and the bearings (6-2) at the top of the flywheel support frame (6-1), and the filled flywheel (6-3) is sleeved on the driving shaft (10).
3. The lunar base energy storage system based on the lunar soil filled flywheel as claimed in claim 2, wherein: the driving shaft (10) comprises a main transmission shaft (10-1) and a plurality of sections of extension transmission shafts (10-2), the number of the extension transmission shafts (10-2) is N-1, and in N-1 groups of energy storage units (6) counted from top to bottom, each group of energy storage units (6) corresponds to one section of extension transmission shaft (10-2);
the bottom end of the main transmission shaft (10-1) is inserted on the axial magnetic suspension base (11), the top end of the main transmission shaft (10-1) is inserted in and extends out of a bearing (6-2) at the top of the flywheel support frame (6-1) at the lowest part, and the filling type flywheel (6-3) at the lowest part is sleeved on the main transmission shaft (10-1);
the bottom end of the extension transmission shaft (10-2) is inserted into and extends out of a bearing (6-2) at the bottom of the flywheel support frame (6-1), the top end of the extension transmission shaft (10-2) is inserted into and extends out of the bearing (6-2) at the top of the flywheel support frame (6-1), and the filling type flywheel (6-3) is sleeved on the extension transmission shaft (10-2);
the top end extending out of the main transmission shaft (10-1) and the bottom end extending out of the extension transmission shaft (10-2) above the main transmission shaft are inserted together; in N-1 groups of energy storage units (6) counted from top to bottom, in two adjacent groups of energy storage units (6), the top end extending out of the extension transmission shaft (10-2) positioned below is connected with the bottom end extending out of the extension transmission shaft (10-2) positioned above in an inserting mode.
4. The lunar base energy storage system based on the lunar soil filling type flywheel according to claim 3, wherein: the top end of the extension transmission shaft (10-2) is provided with a cross key slot (10-2-1), the bottom end of the extension transmission shaft (10-2) is provided with a cross key (10-2-2), and the cross key (10-2-2) at the bottom end of the extension transmission shaft (10-2) is matched with the cross key slot (10-2-1) at the top end of the adjacent extension transmission shaft (10-2) for use; the top end of the main transmission shaft (10-1) is provided with a cross key slot which is matched with a cross key (10-2-2) at the bottom end of the adjacent extension transmission shaft (10-2).
5. The lunar base energy storage system based on the lunar soil filled flywheel as claimed in claim 4, wherein: a plurality of flat keys (10-2-3) are circumferentially arranged on the outer wall of the extension transmission shaft (10-2) at intervals, the flat keys (10-2-3) are strip-shaped bosses, and the length direction of the flat keys (10-2-3) is the same as the axial direction of the extension transmission shaft (10-2); the middle-upper section of the main transmission shaft (10-1) is provided with a plurality of flat keys, the flat keys are strip-shaped bosses, and the length direction of the flat keys is the same as the axial direction of the main transmission shaft (10-1).
6. The lunar base energy storage system based on the lunar soil filled flywheel as claimed in claim 5, wherein: the extension transmission shaft (10-2) is sleeved with a limiting plate (10-2-4), and the limiting plate (10-2-4) is positioned at the bottom ends of the flat keys (10-2-3) and is fixedly connected with the extension transmission shaft (10-2); the bottom ends of the flat keys on the main transmission shaft (10-1) are also provided with a limiting plate.
7. The lunar base energy storage system based on the lunar soil filled flywheel as claimed in claim 6, wherein: the axial magnetic suspension base (11) is an electromagnet, and the axial magnetic suspension body (12) is a permanent magnet.
8. The lunar base energy storage system based on the lunar soil-filled flywheel as claimed in claim 7, wherein: the flywheel supporting frame (6-1) comprises four upright posts (6-1-1) and two cross-shaped supporting frames (6-1-2) which are vertically arranged, the two cross-shaped supporting frames (6-1-2) are arranged at intervals in an up-down opposite mode, two support legs of the two cross-shaped supporting frames (6-1-2) which are opposite in an up-down mode are fixedly connected through one upright post (6-1-1), the top end of each upright post (6-1-1) is provided with a mounting hole (6-1-3), and the bottom end of each upright post (6-1-1) is inserted with a mounting pin (6-1-4);
two adjacent flywheel support frames (6-1) are inserted together through mounting pins (6-1-4) on the flywheel support frame (6-1) above and mounting holes (6-1-3) on the flywheel support frame (6-1) below.
9. The lunar base energy storage system based on the lunar soil-filled flywheel as claimed in claim 8, wherein: the filled flywheel (6-3) comprises an upper cover plate (6-3-1), a flywheel box (6-3-2) and a lower cover plate (6-3-3), the flywheel box (6-3-2) is of a compressible and foldable cylindrical structure, the upper cover plate (6-3-1) is installed above the flywheel box (6-3-2), the lower cover plate (6-3-3) is installed below the flywheel box (6-3-2), the flywheel box (6-3-2) is sealed into a circular cavity structure with a through hole (6-3-4) in the middle through the upper cover plate (6-3-1) and the lower cover plate (6-3-3), and the cross section of the through hole (6-3-4) is of a cross structure.
10. The lunar base energy storage system based on the lunar soil-filled flywheel as claimed in claim 9, wherein: the upper cover plate (6-3-1) and the lower cover plate (6-3-3) are high-strength discs, and two lunar soil filling ports (6-3-5) are formed in the upper cover plate (6-3-1).
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| CN202210212285.XA CN114448099A (en) | 2022-03-04 | 2022-03-04 | Lunar base energy storage system based on lunar soil filling type flywheel |
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| CN202210212285.XA CN114448099A (en) | 2022-03-04 | 2022-03-04 | Lunar base energy storage system based on lunar soil filling type flywheel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116317327A (en) * | 2023-05-15 | 2023-06-23 | 湖南大学 | Lunar base energy storage and power supply system and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116317327A (en) * | 2023-05-15 | 2023-06-23 | 湖南大学 | Lunar base energy storage and power supply system and control method thereof |
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