CN107461227A - A kind of supercritical carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration - Google Patents

A kind of supercritical carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration Download PDF

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Publication number
CN107461227A
CN107461227A CN201710618745.8A CN201710618745A CN107461227A CN 107461227 A CN107461227 A CN 107461227A CN 201710618745 A CN201710618745 A CN 201710618745A CN 107461227 A CN107461227 A CN 107461227A
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China
Prior art keywords
radial
inward
centrifugal compressor
carbon dioxide
coaxial configuration
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CN201710618745.8A
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Chinese (zh)
Inventor
张荻
王雨琦
谢永慧
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Xian Jiaotong University
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Xian Jiaotong University
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Priority to CN201710618745.8A priority Critical patent/CN107461227A/en
Publication of CN107461227A publication Critical patent/CN107461227A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/08Adaptations for driving, or combinations with, pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10Adaptations for driving, or combinations with, electric generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/10Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
    • F01K25/103Carbon dioxide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/32Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or overcritical pressure

Abstract

The invention discloses a kind of supercritical carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration, wherein, supercritical carbon dioxide working medium flows through that centrifugal compressor improves pressure, thermal source improves temperature successively, finally enters in radial-inward-flow turbine after output work in cooler and cools down and circulate and be again introduced into centrifugal compressor.Start motor drives coaxial configuration to start operation by gearbox, and radial-inward-flow turbine forms coaxial configuration, the part output work driving centrifugal compressor of radial-inward-flow turbine with centrifugal compressor by armature spindle, and another part is exported into generator by gearbox.Coaxial configuration both sides shaft end is equipped with journal bearing, and middle part is provided with thrust bearing, can choose the type for adapting to respective axes of rotation rotating speed.Further, seal employs supercritical carbon dioxide dry gas seals pattern.The present invention have it is simple and compact for structure, pneumatic efficiency is high, manufacturing cost it is low wait significant advantage, there are wide market prospects.

Description

A kind of supercritical carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration
Technical field
The present invention relates to a kind of turbomachine power output structure, and in particular to a kind of supercritical carbon dioxide centrifugal compressed Machine and radial-inward-flow turbine coaxial configuration.
Background technology
By the use of supercritical carbon dioxide as the Brayton Cycle system of working medium, there is compact-sized, efficiency high, environment friend The notable feature such as good, is generated electricity using supercritical carbon dioxide working medium, is to substitute traditional boiler heating steam-electric power at present Technology, realize the important directions of the more efficient and inexpensive development of using energy source.Supercritical carbon dioxide electricity generation system mainly includes Compressor, power turbine, generator, thermal source, regenerator, cooling device etc..The major function of wherein compressor is in system Circulating and doing work for working medium provides corresponding high drive power, is the nucleus equipment of system;The major function of power turbine It is for needed for alternator shaft rotation by energy conversion possessed by the supercritical carbon dioxide working medium in high-temperature high-pressure state Energy, and by generator further by rotating shaft rotate mechanical energy be converted to electric energy, and the nucleus equipment of system.
Supercritical carbon dioxide has the characteristics of density is big, viscosity is small, and larger enthalpy drop can be realized under less pressure drop, should There is superperformance for power cycle.Carbon dioxide power pressure in supercritical carbon dioxide electricity generation system is more than 7.4MPa, temperature are more than 31.1 DEG C, and on stagnation condition, compact-sized, small volume, flow losses are small, system effectiveness It is high.System at present using high-speed electric expreess locomotive driving centrifugal compressor is complex, and motor manufacturing requires high, cost increase.In order to Meet the technical requirements of supercritical carbon dioxide electricity generation system, the application proposes a kind of simple and compact for structure, efficient super face Boundary's carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of supercritical carbon dioxide centrifugal compressor With radial-inward-flow turbine coaxial configuration, it is a kind of small volume, power output structure simple and compact for structure, efficiency high, has wide Application prospect.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that to realize:
A kind of supercritical carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration, including it is centrifugal compressor, centripetal Flat, thermal source, cooler, gearbox, generator and startup motor;Wherein,
During work, start motor and drive coaxial configuration to start operation by gearbox, supercritical carbon dioxide working medium is successively Flow through centrifugal compressor and improve pressure, thermal source raising temperature, finally enter in radial-inward-flow turbine after output work in cooler and cool down And circulate and be again introduced into centrifugal compressor;Radial-inward-flow turbine forms coaxial configuration with centrifugal compressor by armature spindle, centripetal Flat part output work driving centrifugal compressor, remainder are exported into the generator connected by gearbox.
Further improve of the invention is that the pressure and temperature of supercritical carbon dioxide working medium is above critical point, begins It is in a supercritical state eventually.
Further improve of the invention is that the power output of coaxial configuration is smaller, belongs to small micro power systems, turbine Output power range is 200-1000kW, and compressor consumption power bracket is 100-600kW, generated output power 100- 800kW。
Further improve of the invention is that centrifugal compressor uses single-stage or twin-stage, and level pressure ratio is between 1.5-2, stream Amount is between 2-10kg/s, and rotating speed is in the range of 40000-100000rpm.
Further improve of the invention is that radial-inward-flow turbine uses single-stage or twin-stage, and level expansion ratio is between 1.5-2, stream Amount is between 2-10kg/s, and rotating speed is in the range of 40000-100000rpm.
Further improve of the invention is that coaxial configuration both sides shaft end is equipped with journal bearing, in the middle part of coaxial configuration Provided with thrust bearing, journal bearing and thrust bearing choose pneumatic bearing, electromagnetic bearing, hydrostatic bearing, hydrodynamic bearing or glossy One kind in plain besring.
Further improve of the invention is, super face is equipped with compressor outlet side axle end and turbine entrance side shaft end Boundary's carbon dioxide dry gas sealing structure.
Of the invention further improve be, generator uses gearbox and centrifugal compressor, centripetal with starting motor Turbine coaxial configuration connects.
Compared with prior art, the present invention has following beneficial effect:
The present invention successfully integrates the advantage of prior art, it is proposed that in supercritical carbon dioxide Brayton cycle it is a kind of from Heart compressor and radial-inward-flow turbine coaxial configuration.Firstly, since supercritical carbon dioxide working medium density is big, use with overcritical dioxy Change carbon and can make entirely to circulate volume for the Brayton cycle of working medium and be much smaller than steam-powered Rankine cycle, and make core component That is centrifugal compressor and radial-inward-flow turbine is compact-sized.Secondly, supercritical carbon dioxide working medium viscosity is small, the energy under less pressure drop Larger enthalpy drop is realized, this causes the Brayton cycle to have higher efficiency.Finally, radial-inward-flow turbine and centrifugal compressor are by turning Sub- axle forms coaxial configuration, the part output work driving centrifugal compressor of radial-inward-flow turbine, and remainder is exported into generator, i.e., Power needed for centrifugal compressor compression supercritical carbon dioxide working medium is provided by radial-inward-flow turbine, is not required to high-speed electric expreess locomotive driving, is made It is simple and compact for structure, can further mitigate overall mass, reduce manufacture difficulty, save cost, and whole circulation only needs to examine Consider a rotor dynamics check and sealing problem.
Further, the pressure and temperature of critical carbon dioxide working medium is above critical point, in a supercritical state all the time.It is super Critical carbon dioxide critical-temperature is relatively low, is 31.1 DEG C, critical pressure 7.4MPa, critical condition easily reaches.For turbine this During one core component, due to its high density, and larger enthalpy drop can be realized under less pressure drop, turbine modular construction can be made tight Gather, efficiency high.During for compressor, compressor package size can not only be reduced, it is similar to the incompressible performance of liquid Compression power consumption is enough reduced, improves efficiency.
Further, the invention belongs to small small power export structure, turbine output power range is 200-1000kW, compression Machine consumption power bracket is 100-600kW, generated output power 100-800kW, can be used for dynamic output demand Small miniature space flight or navigating equipment.
Further, centrifugal compressor uses single-stage or twin-stage, and between 1.5-2, flow turns level pressure ratio between 2-10kg/s Speed is in the range of 40000-100000rpm.Wheel diameter corresponding to high rotating speed centrifugal compressor is small, compact-sized, compressor leaf Wheel and diffuser are simple to manufacture, and flow losses are small, and pneumatic efficiency is high, and compares axial flow compressor and be more easy to adapt to various variable working condition, Such as low flow rate condition.
Further, radial-inward-flow turbine uses single-stage or twin-stage, and between 1.5-2, flow turns level expansion ratio between 2-10kg/s Speed is in the range of 40000-100000rpm.Wheel diameter corresponding to high rotating speed radial-inward-flow turbine is small, compact-sized, turbo wheel and Nozzle is simple to manufacture, and flow losses are small, and pneumatic efficiency is high, and mutually relatively large multistage axial turbine more adapts to various variable working condition, Such as economy or changes in flow rate etc..
Further, this coaxial configuration both sides shaft end is equipped with journal bearing, and thrust bearing, footpath are provided with the middle part of coaxial configuration One kind in pneumatic bearing, electromagnetic bearing, hydrostatic bearing, hydrodynamic bearing or oil-lubricated bearing is chosen to bearing and thrust bearing. The range of speeds of this coaxial configuration is 40000-100000rpm, and the present invention uses different types of radial axle for different rotating speeds Hold and thrust bearing, adapt to high rotating speed corresponding to supercritical carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration extensively, Ensure high speed rotor safety and stability.
Further, to be equipped with supercritical carbon dioxide dry gas at compressor outlet side axle end and turbine entrance side shaft end close Seal structure.Use supercritical carbon dioxide dry gas seals pattern in position at two at this, can realize sealing working medium zero leakage and Zero effusion.
Further, main shaft is connected with alternator shaft and startup machine shaft using gearbox, transmission ratio 2 Or 3, this scheme solves the problems, such as that high-speed electric expreess locomotive cost is too high, and can be according to actual generator and the manufacture for starting motor Horizontal and performance carries out adjustment of rotational speed, improves the applicability and economy of coaxial configuration generating.
In summary, supercritical carbon dioxide centrifugal compressor of the present invention has knot with radial-inward-flow turbine coaxial configuration Structure simple and compact, pneumatic efficiency are high, and manufacturing cost is low to wait significant advantage, suitable for using supercritical carbon dioxide as working medium, power In 100-800kW small small power circulation, there are extremely wide market prospects.
Brief description of the drawings
Fig. 1 is that the system of a kind of supercritical carbon dioxide centrifugal compressor of the present invention and radial-inward-flow turbine coaxial configuration is illustrated Figure.
Fig. 2 is the centrifugal compressor of a kind of supercritical carbon dioxide centrifugal compressor of the present invention and radial-inward-flow turbine coaxial configuration With the rotor tomograph of radial-inward-flow turbine coaxial configuration.
In figure:1- centrifugal compressors, 2- radial-inward-flow turbines, 3- thermals source, 4- coolers, 5- gearboxes, 6- generators, 7- is radially Bearing, 8- thrust bearings, 9- supercritical carbon dioxide dry gas seals parts, 10- start motor.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Reference picture 1, a kind of supercritical carbon dioxide centrifugal compressor of the present invention and radial-inward-flow turbine coaxial configuration, including centrifugation Compressor 1, radial-inward-flow turbine 2, thermal source 3, cooler 4, gearbox 5, generator 6, journal bearing 7, thrust bearing 8, overcritical two Carbonoxide dry gas seals part 9 and startup motor 10;Wherein, using supercritical carbon dioxide as working medium centrifugal compressor 1 with to Heart turbine 2 forms coaxial configuration, starts motor 10 and drives coaxial configuration to start operation by gearbox 5, what radial-inward-flow turbine 2 provided Power can not only drive centrifugal compressor 1, and can be by the output work of gearbox 5 into generator 6.
Supercritical carbon dioxide working medium first flows through centrifugal compressor 1, reaches high pressure low temperature state, and signified high pressure exists herein In the range of 15-20MPa, low temperature refers in the range of 305-330K, subsequently enters in thermal source 3, and reach a high temperature high pressure conditions, i.e., in temperature Rise to 600-800K.The supercritical carbon dioxide working medium of HTHP enters expansion work in turbine 2, and pressure is reduced to 7.5- 8MPa, the working medium interior energy of HTHP is converted into axis of rotation as turbine 2 needed for kinetic energy, drive centrifugal compressor 1 to work And pass through the output work of gearbox 5 to generator 6.
Wherein, compressor 1 uses single-stage or two stage centrifugal compressor, and turbine 2 uses single-stage or twin-stage radial-inward-flow turbine.Coaxially The both sides shaft end of structure is equipped with journal bearing 7, is provided with thrust bearing 8 in the middle part of rotating shaft, different type is used for different rotating speeds Journal bearing and thrust bearing, it is corresponding to be widely applicable to supercritical carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration High rotating speed 40000-100000rpm, it is ensured that high speed rotor safety and stability.Seal on armature spindle employs super face Boundary's carbon dioxide dry gas seals 9, the zero leakage and zero effusion of sealing working medium can be realized.Main shaft and generator and startup motor turn Axle is connected using gearbox 5, and transmission ratio is 2 or 3, can be adjusted according to actual generator and startup motor performance, So as to improve the applicability and economy of coaxial configuration generating.
The centrifugal compressor of a kind of supercritical carbon dioxide centrifugal compressor of the present invention and radial-inward-flow turbine coaxial configuration with to The rotor tomograph of heart turbine coaxial configuration is as shown in Fig. 2 be wherein respectively to start motor 10, start motor from left to right Side gearbox 5, compressor side journal bearing 7, centrifugal compressor 1, compressor side dry gas seals 9, thrust bearing 8, turbine side are done Hermetic seal 9, radial-inward-flow turbine 2, turbine side journal bearing 7, generator side gearbox 5 and generator 6.Operationally, on main shaft Centrifugal compressor 1 and radial-inward-flow turbine 2 have same speed, meanwhile, using gearbox 5 connect main shaft and startup motor 10 and Generator 6.This coaxial configuration has simple and compact, pneumatic efficiency high, manufactures wait significant advantage low with operating cost, and can have Effect reduces the rotating speed for starting motor and generator, lifts the applicability and economy of coaxial configuration generating.

Claims (8)

1. a kind of supercritical carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration, it is characterised in that including centrifugal compressed Machine (1), radial-inward-flow turbine (2), thermal source (3), cooler (4), gearbox (5), generator (6) and startup motor (10);Wherein,
During work, start motor (10) and drive coaxial configuration to start operation by gearbox (5), supercritical carbon dioxide working medium according to The secondary centrifugal compressor (1) that flows through improves pressure, thermal source (3) raising temperature, finally enters in radial-inward-flow turbine (2) after output work cold But cool down and circulate in device (4) and be again introduced into centrifugal compressor (1);Radial-inward-flow turbine (2) passes through rotor with centrifugal compressor (1) Axle forms coaxial configuration, the part output work driving centrifugal compressor (1) of radial-inward-flow turbine (2), and remainder is exported to by speed change In the generator (6) of case (5) connection.
2. a kind of supercritical carbon dioxide centrifugal compressor according to claim 1 and radial-inward-flow turbine coaxial configuration, it is special Sign is that the pressure and temperature of supercritical carbon dioxide working medium is above critical point, in a supercritical state all the time.
3. a kind of supercritical carbon dioxide centrifugal compressor according to claim 1 and radial-inward-flow turbine coaxial configuration, it is special Sign is that the power output of coaxial configuration is smaller, belongs to small micro power systems, and turbine output power range is 200- 1000kW, compressor consumption power bracket is 100-600kW, generated output power 100-800kW.
4. a kind of supercritical carbon dioxide centrifugal compressor according to claim 1 and radial-inward-flow turbine coaxial configuration, it is special Sign is that centrifugal compressor (1) uses single-stage or twin-stage, and between 1.5-2, flow exists level pressure ratio between 2-10kg/s, rotating speed In the range of 40000-100000rpm.
5. a kind of supercritical carbon dioxide centrifugal compressor according to claim 1 and radial-inward-flow turbine coaxial configuration, it is special Sign is that radial-inward-flow turbine (2) uses single-stage or twin-stage, and between 1.5-2, flow exists level expansion ratio between 2-10kg/s, rotating speed In the range of 40000-100000rpm.
6. a kind of supercritical carbon dioxide centrifugal compressor according to claim 1 and radial-inward-flow turbine coaxial configuration, it is special Sign is that coaxial configuration both sides shaft end is equipped with journal bearing (7), and thrust bearing (8), radial axle are provided with the middle part of coaxial configuration Hold one in (7) and thrust bearing (8) selection pneumatic bearing, electromagnetic bearing, hydrostatic bearing, hydrodynamic bearing or oil-lubricated bearing Kind.
7. a kind of supercritical carbon dioxide centrifugal compressor according to claim 1 and radial-inward-flow turbine coaxial configuration, it is special Sign is, supercritical carbon dioxide dry gas sealing structure is equipped with compressor outlet side axle end and turbine entrance side shaft end (9)。
8. a kind of supercritical carbon dioxide centrifugal compressor according to claim 1 and radial-inward-flow turbine coaxial configuration, it is special Sign is that generator (6) is connected with starting motor (10) using gearbox (5) and centrifugal compressor, radial-inward-flow turbine coaxial configuration Connect.
CN201710618745.8A 2017-07-26 2017-07-26 A kind of supercritical carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration Pending CN107461227A (en)

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CN108488391A (en) * 2018-03-12 2018-09-04 北京航空航天大学 A kind of dynamic seal structure suitable under high pressure differential environment
CN110068170A (en) * 2019-04-30 2019-07-30 西安交通大学 A kind of oilfield residual heat based on absorption refrigeration utilizes system
CN110566287A (en) * 2019-09-18 2019-12-13 上海朝临动力科技有限公司 Host system of power generation device, power generation device and power generation system
CN110617112A (en) * 2019-08-27 2019-12-27 肇庆高新区伙伴汽车技术有限公司 Gear rotor engine and unit thereof
CN110700899A (en) * 2019-11-08 2020-01-17 上海朝临动力科技有限公司 Host system of power generation device, power generation device and power generation system
CN110836131A (en) * 2019-11-05 2020-02-25 西安交通大学 Supercritical carbon dioxide recompression circulating turbine mechanical system
CN111749736A (en) * 2020-05-20 2020-10-09 中国核动力研究设计院 Supercritical carbon dioxide turbine dry gas seal failure protection device and method
CN112270053A (en) * 2020-10-26 2021-01-26 哈电发电设备国家工程研究中心有限公司 Axial thrust calculation method for low-power natural gas radial turbine
CN112554974A (en) * 2020-11-03 2021-03-26 西安交通大学 Non-compression distributed carbon dioxide power generation system
CN112985142A (en) * 2021-02-07 2021-06-18 深圳市博德维环境技术股份有限公司 Heat energy conversion mechanical energy storage device based on carbon dioxide gas-liquid phase change
CN112985144A (en) * 2021-02-07 2021-06-18 深圳市博德维环境技术股份有限公司 Multistage compression energy storage device and method based on carbon dioxide gas-liquid phase change
CN112985143A (en) * 2021-02-07 2021-06-18 深圳市博德维环境技术股份有限公司 Based on CO2Multistage compression energy storage device for converting heat energy into mechanical energy through gas-liquid phase change
CN114278407A (en) * 2021-12-21 2022-04-05 西安交通大学 Compressor and turbine coaxial structure suitable for carbon dioxide energy storage system and response method

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CN106050586A (en) * 2016-08-08 2016-10-26 浙江大学 Gas endothermal solar power generation method and device based on characteristic absorption spectra
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CN108488391A (en) * 2018-03-12 2018-09-04 北京航空航天大学 A kind of dynamic seal structure suitable under high pressure differential environment
CN110068170A (en) * 2019-04-30 2019-07-30 西安交通大学 A kind of oilfield residual heat based on absorption refrigeration utilizes system
CN110068170B (en) * 2019-04-30 2020-05-22 西安交通大学 Oil field waste heat utilization system based on absorption refrigeration
CN110617112A (en) * 2019-08-27 2019-12-27 肇庆高新区伙伴汽车技术有限公司 Gear rotor engine and unit thereof
CN110566287A (en) * 2019-09-18 2019-12-13 上海朝临动力科技有限公司 Host system of power generation device, power generation device and power generation system
CN110836131A (en) * 2019-11-05 2020-02-25 西安交通大学 Supercritical carbon dioxide recompression circulating turbine mechanical system
CN110700899A (en) * 2019-11-08 2020-01-17 上海朝临动力科技有限公司 Host system of power generation device, power generation device and power generation system
CN111749736A (en) * 2020-05-20 2020-10-09 中国核动力研究设计院 Supercritical carbon dioxide turbine dry gas seal failure protection device and method
CN112270053A (en) * 2020-10-26 2021-01-26 哈电发电设备国家工程研究中心有限公司 Axial thrust calculation method for low-power natural gas radial turbine
CN112554974A (en) * 2020-11-03 2021-03-26 西安交通大学 Non-compression distributed carbon dioxide power generation system
CN112554974B (en) * 2020-11-03 2021-11-19 西安交通大学 Non-compression distributed carbon dioxide power generation system
CN112985142A (en) * 2021-02-07 2021-06-18 深圳市博德维环境技术股份有限公司 Heat energy conversion mechanical energy storage device based on carbon dioxide gas-liquid phase change
CN112985144A (en) * 2021-02-07 2021-06-18 深圳市博德维环境技术股份有限公司 Multistage compression energy storage device and method based on carbon dioxide gas-liquid phase change
CN112985143A (en) * 2021-02-07 2021-06-18 深圳市博德维环境技术股份有限公司 Based on CO2Multistage compression energy storage device for converting heat energy into mechanical energy through gas-liquid phase change
CN112985143B (en) * 2021-02-07 2022-01-14 百穰新能源科技(深圳)有限公司 CO2 gas-liquid phase change-based multistage compression energy storage device for converting heat energy into mechanical energy
WO2022166384A1 (en) * 2021-02-07 2022-08-11 百穰新能源科技(深圳)有限公司 Carbon dioxide gas-liquid phase change-based energy storage apparatus capable of converting heat energy into mechanical energy
CN114278407A (en) * 2021-12-21 2022-04-05 西安交通大学 Compressor and turbine coaxial structure suitable for carbon dioxide energy storage system and response method

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Application publication date: 20171212