CN109677639A - The high-power Nuclear Power System in space based on Closed Brayton Power Cycle - Google Patents
The high-power Nuclear Power System in space based on Closed Brayton Power Cycle Download PDFInfo
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- CN109677639A CN109677639A CN201811649546.4A CN201811649546A CN109677639A CN 109677639 A CN109677639 A CN 109677639A CN 201811649546 A CN201811649546 A CN 201811649546A CN 109677639 A CN109677639 A CN 109677639A
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- 239000007789 gas Substances 0.000 claims abstract description 48
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 230000005611 electricity Effects 0.000 claims abstract description 29
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 230000017525 heat dissipation Effects 0.000 claims abstract description 14
- AFAUWLCCQOEICZ-UHFFFAOYSA-N helium xenon Chemical compound [He].[Xe] AFAUWLCCQOEICZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000003860 storage Methods 0.000 claims abstract description 7
- 229910052734 helium Inorganic materials 0.000 claims description 44
- 239000001307 helium Substances 0.000 claims description 44
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 40
- 238000005086 pumping Methods 0.000 claims description 14
- 238000005422 blasting Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 229910052724 xenon Inorganic materials 0.000 claims description 6
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- FHNFHKCVQCLJFQ-NJFSPNSNSA-N Xenon-133 Chemical compound [133Xe] FHNFHKCVQCLJFQ-NJFSPNSNSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 229940106670 xenon-133 Drugs 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/40—Arrangements or adaptations of propulsion systems
- B64G1/408—Nuclear spacecraft propulsion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/42—Arrangements or adaptations of power supply systems
- B64G1/421—Non-solar power generation
- B64G1/422—Nuclear power generation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/08—Adaptations for driving, or combinations with, pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/06—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention provides a kind of high-power Nuclear Power Systems in the space based on Closed Brayton Power Cycle, comprising: nuclear reactor for space, Bretton heat to electricity conversion subsystem, hot dissipation subsystem, cycle fluid storage are for subsystem, reactor auxiliary heat dissipation subsystem, electric propulsion subsystem and electric loading subsystem.High efficiency thermoelectric conversion is realized using helium xenon mixed gas as cycle fluid, and is efficiently promoted using the high specific impulse high thrust electric thruster that high voltage directly drives.System solves the problems, such as nuclear powered vehicle high efficiency thermoelectric transfer problem, motor side high voltage and electric thruster low-voltage is unmatched, a wide range of electrical power regulation problem.
Description
Technical field
The present invention relates to Power System of Flight Vehicle fields, and in particular, to the big function in space based on Closed Brayton Power Cycle
Rate Nuclear Power System.
Background technique
Space nuclear powered vehicle mainly utilizes isotope decay at present, and fraction reactor nuclear-electric power supply is remained in thousand
Low power range within watt grade.Meanwhile in the mode of heat to electricity conversion, still it is with static conversions such as thermocouple, thermions
Main, conversion efficiency of thermoelectric is no more than 10%.With the continuous development of space technology, spacecraft show load diversification and
The equipment composition of the development trend that task complicates, aircraft also becomes increasingly complex, and the demand to the energy is also gradually to hundred kilowatts
Even MW class development.Therefore need to develop high-power, efficient Nuclear Power System to meet aircraft to the energy and power day
The requirement for becoming harsh.
The explanation or report without finding technology similar to the present invention domestic at present, is also not yet collected into similar both at home and abroad
Data.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of space based on Closed Brayton Power Cycle is big
Power Nuclear Power System.
The high-power Nuclear Power System in a kind of space based on Closed Brayton Power Cycle provided according to the present invention, comprising: empty
Between nuclear reactor, Bretton heat to electricity conversion subsystem, hot dissipation subsystem, cycle fluid storage for subsystem, reactor assist dissipate
Thermal sub-system, electric propulsion subsystem and electric loading subsystem；
Nuclear reactor for space improves Bretton heat to electricity conversion subsystem cycle fluid temperature, thermoelectricity by the internal pipeline that heats
The cycle fluid thermal energy of high temperature and pressure is converted to shaft power by the turbine in conversion subsystem, and part shaft power is calmed the anger for driving
Machine completes working medium circulation pressurization, and surplus shaft power driven generator exports electric energy；Bretton heat to electricity conversion subsystem passes through pipeline
One, pipeline two, cable one, cable two connect with hot dissipation subsystem, cycle fluid storage for subsystem, electric propulsion subsystem respectively
It connects, the connection of electric loading subsystem.
Preferably, the nuclear reactor for space is the small space heap of MW class, made with helium or helium xenon mixed gas
Reactor internal heat is exported for catalyst carrier.
Preferably, the Bretton heat to electricity conversion subsystem, including heating tube, turbine, compressor, generator, backheat
Device, cooler, by-passing valve, temperature sensor, pressure sensor and speed probe；
The turbine includes the single-stage or multistage turbine including axial-flow type, centripetal turbine, the compressor packet
Containing the single-stage or multistage compressor including axial-flow type, centrifugal-flow compressor, the generator has motor and generator
The inspiration integrated generator of two kinds of operating modes, the turbine, compressor, motor use coaxial configuration mode, described
Regenerator includes gas-to-gas heat exchanger, and the cooler includes gas liquid exchanger, and the by-passing valve passes through motor driven control
The valve of aperture processed, the heating tube are located at the pipeline that heat cycles working medium is used in the nuclear reactor for space.
Preferably, the hot dissipation subsystem, including radiator and circulating pump；
The radiator includes heat pipe-type, fluid circuit formula or drop formula radiator, and the circulating pump is used
Heat exchange is completed in the cooler and the radiator in the Bretton thermoelectric conversion system in driving coolant liquid
Circulation.
Preferably, the cycle fluid is stored up for subsystem, comprising: high pressure gas cylinder, electric blasting valve, inflation solenoid valve, decompression
Device, inflation check valve, pumping solenoid valve, air exhauster and pumping check valve；
Filled with helium xenon mixed gas inside the high pressure gas cylinder, the air exhauster includes centrifugal or positive displacement pressure
Mechanism of qi.
Preferably, the reactor auxiliary heat dissipation subsystem, comprising: cooling line, helium gas cylinder, helium electric blasting valve,
Helium solenoid valve, helium compressor and gas radiator；
Helium in the helium gas cylinder is used for the reactor auxiliary heat dissipation subsystem coolant, the helium
Compressor includes centrifugal or positive-displacement compressor, and the gas radiator includes helium radiator.
Preferably, the electric propulsion subsystem, comprising: xenon gas cylinder and electric thruster；
The electric thruster is high voltage direct-driving electric thruster.
Preferably, the electric loading subsystem, comprising: electric pressure converter and load blocks；
Voltage needed for generator end high voltage is converted to load by the electric pressure converter.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1) using helium xenon mixed gas as cycle fluid, heat to electricity conversion, transfer efficiency are carried out using Closed Brayton Power Cycle
30% or more, realize efficient conversion of the nuclear energy to electric energy and power；
2) high voltage direct-driving electric propulsion system, the high-power high voltage electrical energy drive directly generated using thermoelectric conversion system
Electric thruster eliminates power supply processing unit, reduces the weight and structural complexity of electric propulsion system, while electric thruster has
There is the high thrust of the high specific impulse and 40N not less than 7000s；
3) have bypass and adjust the power regulation mode different with pumping two kinds of response speeds of adjusting, meet aircraft difference
The energy of task and power demand.
The present invention is suitable for using nuclear energy as power, and aircraft in orbit, is especially dragged in deep space exploration, space for a long time
Ship and LEO cleaning etc. have significant application advantage.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the knot for the high-power Nuclear Power System in the space based on Closed Brayton Power Cycle that the embodiment of the present invention one provides
Structure schematic diagram；
Appended drawing reference: 1- nuclear reactor for space；2- Bretton heat to electricity conversion subsystem；21- heating tube；22- turbine；23-
Compressor；24- generator；25- regenerator；26- cooler；27- by-passing valve；28- temperature sensor；29- pressure sensor；
210- speed probe；The hot dissipation subsystem of 3-；31- circulating pump；32- radiant coolers；4- cycle fluid is stored up for subsystem；
41- high pressure gas cylinder；42- electric blasting valve；43- inflates solenoid valve；44- pressure reducer；45- inflates check valve；46- is evacuated solenoid valve；47-
Air exhauster；48- is evacuated check valve；5- reactor supplement heat rejecter subsystem；51- cooling line；52- helium gas cylinder；53- helium electricity
Quick-fried valve；54- helium solenoid valve；55- helium compressor；56- gas radiator；6- electric propulsion subsystem；61- xenon gas cylinder；62-
Electric thruster；7- electric loading subsystem；71- electric pressure converter；72- load blocks；81- pipeline one；82- cable one；83- cable
Two；84- pipeline two.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
Embodiment one:
Fig. 1 is the high-power Nuclear Power System structure in the space based on Closed Brayton Power Cycle that the embodiment of the present invention one provides
Schematic diagram.As shown in Figure 1, the high-power Nuclear Power System in the space provided by the invention based on Closed Brayton Power Cycle, including sky
Between nuclear reactor 1, Bretton heat to electricity conversion subsystem 2, hot dissipation subsystem 3, cycle fluid storage it is auxiliary for subsystem 4, reactor
Help heat dissipation subsystem 5, electric propulsion subsystem 6, electric loading subsystem 7.Nuclear reactor for space 1 improves cloth by internal heating tube 21
The helium xenon cycle fluid temperature of thunder heat to electricity conversion subsystem 2, turbine 22 in Bretton heat to electricity conversion subsystem 2 is by high temperature height
The cycle fluid thermal energy of pressure is converted to shaft power, and part shaft power is for driving compressor 23 to complete working medium circulation pressurization, surplus
Shaft power driven generator 24 exports electric energy.Bretton heat to electricity conversion subsystem 2 passes through pipeline 1, pipeline 2 84, cable one
82, cable 2 83 is stored up with cycle fluid for subsystem 4, hot dissipation subsystem 3, electric propulsion subsystem 6, electric loading subsystem respectively
7 connections.
The nuclear reactor for space 1 is a kind of small space heap of MW class, can be with helium or helium xenon mixed gas
Reactor internal heat is exported as catalyst carrier.
The Bretton heat to electricity conversion subsystem 2, including heating tube 21, turbine 22, compressor 23, generator 24, return
Hot device 25, cooler 26, by-passing valve 27, temperature sensor 28, pressure sensor 29, speed probe 210.The turbine 22
Refer to the single-stage or multistage turbine comprising axial-flow type, including centripetal turbine, the compressor 23 refer to comprising axial-flow type,
Single-stage or multistage compressor including centrifugal-flow compressor, the generator 24, which refers to, has motor and two kinds of generator
The inspiration integrated generator of operating mode, the turbine 22, compressor 23, motor 24 use coaxial configuration mode, described
Regenerator 25 refer to the gas-to-gas heat exchanger with high compactness and heat exchange efficiency, the cooler 26 refer to have it is high tight
The gas liquid exchanger of degree of gathering and heat exchange efficiency, the by-passing valve 27 refers to the valve by drive and control of electric machine aperture, described
Heating tube 21 refer in the nuclear reactor for space 1 be used for heat cycles working medium pipeline.
The hot dissipation subsystem 3, including circulating pump 31 and radiator 32.The circulating pump 31 is for driving
Coolant liquid is completed heat exchange in the cooler 26 and the radiator 32 in the Bretton thermoelectric conversion system 2 and is followed
Ring, the radiator 32 refer to the heat pipe-type for meeting space heat elimination requirement, fluid circuit formula or drop formula radiator.
The cycle fluid is stored up for subsystem 4, comprising: high pressure gas cylinder 41, electric blasting valve 42, inflation solenoid valve 43, decompression
Device 44, inflation check valve 45, pumping solenoid valve 46, air exhauster 47, pumping check valve 48.Inside the high pressure gas cylinder 41 filled with
Helium xenon mixed gas, the air exhauster 47 refer to centrifugal or positive-displacement compressor.
The reactor auxiliary heat dissipation subsystem 5, comprising: cooling line 51, helium gas cylinder 52, helium electric blasting valve 53,
Helium solenoid valve 54, helium compressor 55, gas radiator 56.The cooling line 51 refers to anti-positioned at the space core
Pipeline cooling for reactor in heap 1 is answered, the helium in the helium gas cylinder 52 is used for the reactor auxiliary heat dissipation
The coolant of system 5, the helium compressor 55 refer to centrifugal or positive-displacement compressor, the gas radiator 56
Refer to helium radiator.
The electric propulsion subsystem 6, comprising: xenon gas cylinder 61, electric thruster 62.The electric thruster 62 is high electricity
Press direct-drive type electric thruster.
The electric loading subsystem 7, comprising: electric pressure converter 71 and load blocks 72.The electric pressure converter 71
Voltage needed for the high voltage at 24 end of generator is converted to load, the load blocks 72 include various electricity consumptions on aircraft
Equipment, sensor etc..
The high-power Nuclear Power System in space provided by the invention based on Closed Brayton Power Cycle, main includes starting, work
Work and power regulation shut down three processes:
The high-power Nuclear Power System in space based on Closed Brayton Power Cycle starts to open after aircraft reaches specified altitude assignment
Dynamic, system is as follows from the course of work that full power exports is started to.Electric blasting valve 42 in cycle fluid storage subsystem 4 detonates,
Inflation solenoid valve 43 is opened, the helium xenon mixed gas in high pressure gas cylinder 41 is by pressure reducer 44, inflation check valve 45, via pipeline
One 81 enter Bretton heat to electricity conversion subsystem 2, and by-passing valve 27 is in close state at this time.When pressure sensor 29 measures pressure
After reaching setting value, inflation solenoid valve 43 is closed, inflation is stopped.Helium electric blasting valve 53 detonates, and helium solenoid valve 54 is opened, space
Nuclear reactor 1 starts, and opens helium compressor 55, helium is reactor heat dissipation by cooling line 51, and is radiated by helium
Device 56 is by heat dissipation to space environment.After 1 temperature of nuclear reactor for space is gradually increased to setting value, generator 24 is opened, this
When generator 24 be electric motor mode, drive turbine 22 and compressor 23 to rotate, the helium xenon in Bretton heat to electricity conversion subsystem 2
Cycle fluid starts the cycle over, and working medium enters the expansion of turbine 22 after absorbing heat by the heating tube 21 inside nuclear reactor for space 1
Acting.Meanwhile starting the circulating pump 31 in hot dissipation subsystem 3, coolant liquid passes through pipeline 2 84 under the driving of circulating pump 31
Pass through radiator 32 after into cooler 26 for the waste heat discharge of Bretton heat to electricity conversion subsystem 2 to space environment.It is empty
Between nuclear reactor 1 continue to heat up, 22 output power of turbine is gradually increased, when turbine 22 output power greater than compressor 23 consume
Power after, generator 24 enter power generation mode.Nuclear reactor for space 1 continues to heat up, and 22 output power of turbine reaches at full capacity
State, 24 electromotive power output of generator reaches rated value at this time, closes the helium compressor in reactor auxiliary heat dissipation subsystem 5
55, reactor auxiliary heat dissipation subsystem 5 stops working.
The high-power Nuclear Power System in space based on Closed Brayton Power Cycle is in the course of work after start completion, power generation
The high voltage electric energy that machine 24 exports has two kinds of usage modes, first is that being delivered to the electricity in electric propulsion subsystem 6 by cable 1
Thruster 62, xenon gas cylinder 61 supplies xenon working medium to electric thruster 62 simultaneously at this time, realizes nuclear electric propulsion；Second is that passing through cable
2 83 are delivered to electric loading subsystem 7, and supply load blocks 72 use after being depressured via electric pressure converter 71.Meanwhile system can
Electromotive power output is adjusted according to the real-time electrical power requirements of electric propulsion subsystem 6 or electric loading subsystem 7.Power regulation mode
It is adjusted including bypass and pumping adjusts two kinds.It bypasses in shaping modes, during system full power operation, opens Bretton heat
By-passing valve 27 in electric conversion subsystem 2 simultaneously adjusts bypass gases flow by controlling its aperture, and compressor 23 exports height at this time
Some helium xenon-133 gas for doing work without turbine 22 but directly exporting with turbine 22 mixes in pressure helium xenon-133 gas, thus whirlpool
22 output shaft power decline of wheel, bypass shaping modes can quick regulating system electromotive power output.It is evacuated in shaping modes, keeps other
Port valve 27 is closed, and pumping solenoid valve 46 and air sucking and pressing machine 45 is opened, the cycle fluid in Bretton thermoelectric conversion system 2 via
Pipeline 1 returns to high pressure gas cylinder 41 by pumping solenoid valve 46, air sucking and pressing machine 45, pumping check valve 48, electric blasting valve 42, takes out
Controlled atmosphere section exports electric work by changing the mass flow of helium xenon cycle fluid in Bretton heat to electricity conversion subsystem 2 to change system
Rate.It is evacuated regulative mode response speed to adjust slowly than bypass, but relatively high transfer efficiency can be kept at low load.
The high-power Nuclear Power System shutdown process in space based on Closed Brayton Power Cycle is as follows.Space based reactor 1 is gradually
Power is dropped, opens pumping solenoid valve 46 and air sucking and pressing machine 45, the cycle fluid in Bretton heat to electricity conversion subsystem 2 is via pipe
Road 1 returns to high pressure gas cylinder 41, motor by pumping solenoid valve 46, air sucking and pressing machine 45, pumping check valve 48, electric blasting valve 42
24 revolving speeds, which gradually decrease down, to be entered electric motor mode after setting speed and no longer externally exports electric energy.Reactor auxiliary heat dissipating system 5
In helium solenoid valve 54 open and open helium compressor 55, helium is that reactor radiates, and passes through by cooling line 51
Helium radiator 56 is by heat dissipation to space environment.Motor 24 is closed, turbine 22 stops operating with compressor 23, and reactor is auxiliary
It helps cooling system 5 to continue working, drops to setting value to 1 temperature of nuclear reactor for space, close helium compressor 55.Shutdown process
It completes.
The high-power space Nuclear Power System based on Closed Brayton Power Cycle that the present embodiment one provides has the advantages that
1) using helium xenon mixed gas as cycle fluid, heat to electricity conversion, transfer efficiency are carried out using Closed Brayton Power Cycle
30% or more, realize efficient conversion of the nuclear energy to electric energy and power；
2) high voltage direct-driving electric propulsion system, the high-power high voltage electrical energy drive directly generated using thermoelectric conversion system
Electric thruster eliminates power supply processing unit, reduces the weight and structural complexity of electric propulsion system, while electric thruster has
There is the high thrust of the high specific impulse and 40N not less than 7000s；
3) have bypass and adjust the power regulation mode different with pumping two kinds of response speeds of adjusting, meet aircraft difference
The energy of task and power demand.
The present invention is suitable for using nuclear energy as power, and aircraft in orbit, is especially dragged in deep space exploration, space for a long time
Ship and LEO cleaning etc. have significant application advantage.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (8)
1. a kind of high-power Nuclear Power System in space based on Closed Brayton Power Cycle characterized by comprising space nuclear reaction
Heap, Bretton heat to electricity conversion subsystem, hot dissipation subsystem, cycle fluid storage for subsystem, reactor auxiliary heat dissipation subsystem,
Electric propulsion subsystem and electric loading subsystem；
Nuclear reactor for space improves Bretton heat to electricity conversion subsystem cycle fluid temperature, heat to electricity conversion by the internal pipeline that heats
The cycle fluid thermal energy of high temperature and pressure is converted to shaft power by the turbine in subsystem, and part shaft power is for driving compressor complete
It is pressurized at working medium circulation, surplus shaft power driven generator exports electric energy；Bretton heat to electricity conversion subsystem passes through pipeline one, pipe
Road two, cable one, cable two are connect with hot dissipation subsystem, cycle fluid storage for subsystem, electric propulsion subsystem respectively, electricity is negative
Subsystems connection.
2. the high-power Nuclear Power System in the space according to claim 1 based on Closed Brayton Power Cycle, which is characterized in that
The nuclear reactor for space is the small space heap of MW class, using helium or helium xenon mixed gas as catalyst carrier by reactor
Internal heat export.
3. the high-power Nuclear Power System in the space according to claim 1 based on Closed Brayton Power Cycle, which is characterized in that
The Bretton heat to electricity conversion subsystem, including heating tube, turbine, compressor, generator, regenerator, cooler, bypass
Valve, temperature sensor, pressure sensor and speed probe；
The turbine includes the single-stage or multistage turbine including axial-flow type, centripetal turbine, and the compressor includes axis
Single-stage or multistage compressor including streaming, centrifugal-flow compressor, the generator have motor and two kinds of generator
The inspiration integrated generator of operating mode, the turbine, compressor, motor use coaxial configuration mode, the backheat
Device includes gas-to-gas heat exchanger, and the cooler includes gas liquid exchanger, and the by-passing valve is opened by drive and control of electric machine
The valve of degree, the heating tube are located at the pipeline that heat cycles working medium is used in the nuclear reactor for space.
4. the high-power Nuclear Power System in the space according to claim 1 based on Closed Brayton Power Cycle, which is characterized in that
The hot dissipation subsystem, including radiator and circulating pump；
The radiator includes heat pipe-type, fluid circuit formula or drop formula radiator, and the circulating pump is for driving
Dynamic coolant liquid completes heat exchange cycle in the cooler and the radiator in the Bretton thermoelectric conversion system.
5. the high-power Nuclear Power System in the space according to claim 1 based on Closed Brayton Power Cycle, which is characterized in that
The cycle fluid is stored up for subsystem, comprising: high pressure gas cylinder, inflation solenoid valve, pressure reducer, inflation check valve, is taken out electric blasting valve
Pneumoelectric magnet valve, air exhauster and pumping check valve；
Filled with helium xenon mixed gas inside the high pressure gas cylinder, the air exhauster includes centrifugal or positive displacement is calmed the anger
Machine.
6. the high-power Nuclear Power System in the space according to claim 1 based on Closed Brayton Power Cycle, which is characterized in that
The reactor auxiliary heat dissipation subsystem, comprising: cooling line, helium gas cylinder, helium electric blasting valve, helium solenoid valve, helium
Compressor and gas radiator；
Helium in the helium gas cylinder is used for the reactor auxiliary heat dissipation subsystem coolant, and the helium is calmed the anger
Machine includes centrifugal or positive-displacement compressor, and the gas radiator includes helium radiator.
7. the high-power Nuclear Power System in the space according to claim 1 based on Closed Brayton Power Cycle, which is characterized in that
The electric propulsion subsystem, comprising: xenon gas cylinder and electric thruster；
The electric thruster is high voltage direct-driving electric thruster.
8. the high-power Nuclear Power System in the space according to claim 1 based on Closed Brayton Power Cycle, which is characterized in that
The electric loading subsystem, comprising: electric pressure converter and load blocks；
Voltage needed for generator end high voltage is converted to load by the electric pressure converter.
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| CN201811649546.4A CN109677639B (en) | 2018-12-30 | 2018-12-30 | Space high-power nuclear power system based on closed Brayton cycle |
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| CN201811649546.4A CN109677639B (en) | 2018-12-30 | 2018-12-30 | Space high-power nuclear power system based on closed Brayton cycle |
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| CN109677639B CN109677639B (en) | 2020-08-04 |
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| CN110310748A (en) * | 2019-07-02 | 2019-10-08 | 北京卫星环境工程研究所 | Install the heat to electricity conversion integral reactor of turbine additional |
| CN110406699A (en) * | 2019-06-19 | 2019-11-05 | 上海空间推进研究所 | Propulsion and generating integration device and its operating method for space power system |
| CN110486241A (en) * | 2019-08-14 | 2019-11-22 | 上海卫星工程研究所 | Space solar thermal power generation system and its electricity-generating method |
| CN111128415A (en) * | 2019-12-31 | 2020-05-08 | 中国核动力研究设计院 | Heat pipe reactor adopting closed gas Brayton cycle and operation method thereof |
| CN111120100A (en) * | 2019-12-31 | 2020-05-08 | 中国核动力研究设计院 | Heat pipe reactor adopting open type gas Brayton cycle and operation method thereof |
| CN111128410A (en) * | 2019-12-31 | 2020-05-08 | 中国核动力研究设计院 | Heat pipe reactor system and energy conversion mode thereof |
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