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 PDFInfo
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- 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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- radial
- inward
- centrifugal compressor
- carbon dioxide
- coaxial configuration
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Classifications
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- 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
- F01K7/00—Steam 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/32—Steam 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or overcritical pressure
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- 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
- 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
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- 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
- F01K25/08—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 special vapours
- F01K25/10—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 special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
- F01K25/103—Carbon dioxide
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
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.
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| CN201710618745.8A CN107461227A (en) | 2017-07-26 | 2017-07-26 | A kind of supercritical carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration |
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| CN201710618745.8A CN107461227A (en) | 2017-07-26 | 2017-07-26 | A kind of supercritical carbon dioxide centrifugal compressor and radial-inward-flow turbine coaxial configuration |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108612570A (en) * | 2018-06-27 | 2018-10-02 | 西安热工研究院有限公司 | Using the supercritical carbon dioxide turbomachine working medium displacement apparatus and method of dry gas seals |
| 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 |
| CN110469404A (en) * | 2019-08-06 | 2019-11-19 | 碧流天能(北京)科技股份有限公司 | Supercritical carbon dioxide working medium miniature gas turbine system and its working medium circulation method |
| 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 |
| CN111237023A (en) * | 2020-03-20 | 2020-06-05 | 杭州汽轮机股份有限公司 | Rotating mechanical shafting structure based on supercritical carbon dioxide and working method |
| 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 |
| CN111894682A (en) * | 2019-05-05 | 2020-11-06 | 易元明 | Long rotating handle fast recoil driving power generation equipment around shaft |
| 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 |
| 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 |
| 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 |
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| 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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| 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 |
| CN108612570A (en) * | 2018-06-27 | 2018-10-02 | 西安热工研究院有限公司 | Using the supercritical carbon dioxide turbomachine working medium displacement apparatus and method of dry gas seals |
| 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 |
| CN111894682A (en) * | 2019-05-05 | 2020-11-06 | 易元明 | Long rotating handle fast recoil driving power generation equipment around shaft |
| CN110469404A (en) * | 2019-08-06 | 2019-11-19 | 碧流天能(北京)科技股份有限公司 | Supercritical carbon dioxide working medium miniature gas turbine system and its working medium circulation method |
| 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 |
| CN111237023A (en) * | 2020-03-20 | 2020-06-05 | 杭州汽轮机股份有限公司 | Rotating mechanical shafting structure based on supercritical carbon dioxide and working method |
| 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 |
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| CN112554974A (en) * | 2020-11-03 | 2021-03-26 | 西安交通大学 | Non-compression distributed carbon dioxide power generation system |
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| 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 |
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| 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 |
| 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 |
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| CN113898435A (en) * | 2021-11-11 | 2022-01-07 | 重庆江增船舶重工有限公司 | Control structure and method of supercritical carbon dioxide turbine generator set |
| CN113898435B (en) * | 2021-11-11 | 2024-05-03 | 重庆江增船舶重工有限公司 | Control structure and method of supercritical carbon dioxide turbine generator set |
| 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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