CN108240235A - A kind of non-compensation combustion type liquefied air energy-storing and power-generating system - Google Patents
A kind of non-compensation combustion type liquefied air energy-storing and power-generating system Download PDFInfo
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- CN108240235A CN108240235A CN201710382883.0A CN201710382883A CN108240235A CN 108240235 A CN108240235 A CN 108240235A CN 201710382883 A CN201710382883 A CN 201710382883A CN 108240235 A CN108240235 A CN 108240235A
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- heat exchanger
- air
- energy
- storing
- liquefied air
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 17
- 230000005611 electricity Effects 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000002309 gasification Methods 0.000 claims abstract description 9
- 238000005057 refrigeration Methods 0.000 claims abstract description 8
- 239000013589 supplement Substances 0.000 claims abstract description 6
- 239000002803 fossil fuel Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 7
- 239000002918 waste heat Substances 0.000 claims description 7
- 230000008901 benefit Effects 0.000 claims description 5
- 238000003303 reheating Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000004146 energy storage Methods 0.000 description 15
- 238000010248 power generation Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000004154 complement system Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- 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
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
- F01K27/02—Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat
Abstract
A kind of non-compensation combustion type liquefied air energy-storing and power-generating system, it includes liquefied air system, electricity generation system and hold over system.The present invention is to utilize wind electrodrive air compressor, after pure air is compressed by air compressor A, enter air compressor B after heat exchanger A is cooled to room temperature, after further being compressed, it is cooled to room temperature by heat exchanger B, pressure-air enters GM refrigeration machines and further cools down and liquefy by throttle valve, and liquid air reaches storage tank and stored；During peak of power consumption, liquid air is brought out, after cryogenic pump pressurizes, first in gasification heat exchanger by heating and gasifying, enter turbine A after exchanging heat in heat exchanger C with the high-temperature medium from thermal storage device again to do work, enter turbine B after being heated by heat exchanger D again to do work, entering turbine C after finally being heated by heat exchanger E does work, and drives electrical power generators.The present invention is a kind of novel energy-storing generation technology, does not need to fossil fuel as supplement, has a good application prospect.
Description
Technical field
The present invention relates to a kind of novel liquefied air energy storage and electricity generation system, especially a kind of non-compensation combustion type liquefied air storage
Energy electricity generation system, whole process do not need to fossil fuel as supplement, belong to green energy resource technical field.
Background technology
Fossil energy is constantly exhausted to have become the important bottleneck for restricting global economy and social development with environment worsening
Problem.To solve this problem, economize on can be with improving outside fossil energy utilization ratio for extensive development, and scale development is using can
The renewable sources of energy become important selection and the inexorable trend of global energy development.Wind energy and solar energy is distributed most wide in the world
Emphasis general, most abundant, that regenerative resource develops and uses.Wind-powered electricity generation is the major way that wind energy scale develops and uses, and wind-powered electricity generation has
There are a unstability and intermittence, scheduling, the method for operation, reliability, electric power quality and the operating cost of power grid are all brought huge
Impact.With the increasingly increase of wind-powered electricity generation scale, the consistency problem of electricity and power grid will be protruded more, and be essential the solution party for wanting feasible
Case is to promote the extensive utilization of wind-powered electricity generation.There are mainly two types of technological approaches at present：One kind is that wind energy and other energy composition is mutual
Complement system, wind-powered electricity generation and solar power generation complementary system, wind-powered electricity generation and diesel engine/gas turbine power generation complementary system etc.；Another kind is
Wind-powered electricity generation is combined with extensive energy storage technology.
The scale energy storage technology for being technically confirmed feasible at present mainly includes water-storage, compressed air is stored up
Energy, large-capacity battery and redox flow batteries.As it can be seen that by development for many years, the research of a variety of energy storage technologies and quotient
Industry achieves impressive progress, and has multiple demonstrative projects, can be in wind generator system but without a kind of energy storage mode
In be used widely.As a kind of novel scale energy storage technology, efficient, safe utilization for wind energy provide for liquefied air energy storage
One new, attractive solution.
The history of liquefied air energy storage technology can trace back and to the 1970's, at that time Europe occur using liquid air into
The patent of row energy storage.Japan also actively develops the research of liquefied air energy storage technology in recent years, as Mitsubishi and Hitachi are public
Department etc., but since its system effectiveness is too low, there is no too big practical values.Recently, Leeds, England university research personnel propose
Novel liquid air energy storage systems, it injects low temperature after air is compressed, is cooled down, is liquefied using electrical energy drive motor more than needed
Storage tank stores, and the most of electric energy consumed in liquefaction process has been converted to cryogenic cold energy and has been stored.During power generation, liquid air
It is drawn from storage tank, gasification heat exchanger is sent into after pressurization and heat exchanger gasifies and is heated to certain temperature, last high pressure gas
Expanding machine acting is injected, drives electrical power generators.
Novel liquefaction air energy storage systems flow is simply unique, and most of equipment are using reliable ready-made standard device；Storage
Energy medium is air, and energy density is high after freely can obtaining and liquefy；System is by making full use of in working medium state change process
The conversion of form of energy and cold recovery greatly improve energy storage efficiency；Meanwhile liquefaction portion and gasification dilation in system
It is relatively independent, it can be flexibly matched with as needed.Liquefied air energy-storage system is relatively low with initial cost, and energy storage efficiency is higher, storage
Capacity is big, and flexible adjustment, service life is long, easy to maintain, the advantages that independent of geographical conditions, makes it in intermittent renewable
The fields such as the storage of the energy, distributed energy supply have wide application prospect.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide it is a kind of directly by the use of wind-powered electricity generation as drive energy,
Using energy storing and electricity generating integral system of the compression waste heat as heating energy source.
Problem of the present invention is realized with following technical proposals：
A kind of non-compensation combustion type liquefied air energy-storing and power-generating system, it includes liquefied air system, electricity generation system and accumulation of heat system
System.The present invention is using wind electrodrive air compressor, after pure air is compressed by air compressor A, by heat exchanger A
Enter air compressor B after being cooled to room temperature, after further being compressed, be cooled to room temperature by heat exchanger B, pressure-air enters
GM refrigeration machines further cool down and liquefy by throttle valve, and liquid air reaches storage tank and stored；During peak of power consumption, liquid is empty
Gas is brought out, and after cryogenic pump pressurizes, is first being changed in gasification heat exchanger by heating and gasifying, then with the high-temperature medium from thermal storage device
Enter turbine A after exchanging heat in hot device C to do work, then enter turbine B after being heated by heat exchanger D and do work, finally added by heat exchanger E
Enter turbine C after heat to do work, drive electrical power generators；
The liquefied air system is by motor, air compressor A, heat exchanger A, air compressor B, heat exchanger B, GM system
Cold, cryogenic liquid expanding machine, liquid air storage tank composition；
The electricity generation system is by cryogenic pump, and gasify heat exchanger, heat exchanger C, turbine A, heat exchanger D, turbine B, heat exchanger E,
Turbine C, motor unit into；
The hold over system is by cool storage container, circulating pump A, thermal storage device, circulating pump B compositions.
Above-mentioned non-compensation combustion type liquefied air energy-storing and power-generating system collects the waste heat conduct of compression process in the hold over system
The origin of heat of reheating, entire energy storing and electricity generating process no longer need fossil fuel to be used as supplement between the every grade of expansion of expansion unit,
It is complete " green " system to realize whole system；
Above-mentioned non-compensation combustion type liquefied air energy-storing and power-generating system is expanded using cryogenic liquid in the liquefied air system
Machine for substituting the conventional high-tension liquid throttle valve of highly energy-consuming, is the key that energy-saving equipment in liquefied air system, can generate aobvious
The energy-saving benefit write, to improve the efficiency of system；
Above-mentioned non-compensation combustion type liquefied air energy-storing and power-generating system, using cold among Two-stage Compression in the liquefied air system
But mode carries out compressed air；
Above-mentioned non-compensation combustion type liquefied air energy-storing and power-generating system, using three-level expansion resuperheat in the electricity generation system
Mode is done work；
The present invention utilizes liquefied air system, electricity generation system and hold over system, after pure air is liquefied using wind-powered electricity generation
It being stored, during peak of power consumption, liquid air is brought out, after cryogenic pump pressurizes, first in gasification heat exchanger by heating and gasifying, then
Enter turbine after exchanging heat in heat exchanger with the high-temperature medium from thermal storage device to do work, drive generator rotary electrification.Utilize pressure
Origin of heat of the waste heat of compression process as reheating between the every grade of expansion of expansion unit, entire energy storing and electricity generating process no longer needs
For stone fuel as supplement, it is complete " green " system to realize whole system, has the advantages that clean, is safe and reliable, without carrying on a shoulder pole
The heart pollutes the environment.
In addition, the present invention also has the following advantages that：
1st, the present invention is using wind-powered electricity generation as drive energy, and waste heat in compression process is as expanding between every grade of unit expands
The origin of heat of reheating rationally using waste heat is compressed, improves cycle efficieny；
2nd, the working medium that the present invention uses is pure air, and pollution will not be generated to environment and is destroyed；
3rd, the present invention is not limited by geographical conditions, is had a wide range of application, and has good commercial promise.
Description of the drawings
The present invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the system diagram of the non-compensation combustion type liquefied air energy-storing and power-generating system of the present invention.
In figure respectively marked as：1st, motor；2nd, air compressor A；3rd, heat exchanger A；4th, air compressor B；5th, heat exchanger
B；6th, GM refrigeration machines；7th, cryogenic liquid expanding machine；8th, liquid air storage tank；9th, cryogenic pump；10th, gasify heat exchanger；11st, heat exchanger
C；12nd, turbine A；13rd, heat exchanger D；14th, turbine B；15th, heat exchanger E；16th, turbine C；17th, motor；18th, cool storage container；19th, it follows
Ring pumps A；20th, thermal storage device；21st, circulating pump B.
Specific embodiment
The present invention is a kind of non-compensation combustion type liquefied air energy-storing and power-generating system, which includes liquefied air system, power generation
System and hold over system, these three systems are implemented in combination with the purpose of the present invention, when there is wind in the external world, can by the use of wind-powered electricity generation as
Drive energy driving air compressor work, after pure air is compressed by air compressor A, is cooled to by heat exchanger A
Enter air compressor B after room temperature, after further being compressed, be cooled to room temperature by heat exchanger B, pressure-air enters GM refrigeration
Machine further cools down and liquefies by throttle valve, and liquid air reaches storage tank and stored；During peak of power consumption, liquid air is drawn
Go out, after cryogenic pump pressurizes, first in gasification heat exchanger by heating and gasifying, then with the high-temperature medium from thermal storage device in heat exchanger C
Enter turbine A after middle heat exchange to do work, then enter turbine B after being heated by heat exchanger D and do work, after finally being heated by heat exchanger E
It does work into turbine C, drives electrical power generators；It is achieved thereby that the energy efficiently uses, user is met in peak times of power consumption
The demand of electricity consumption.
Whole system liquefied air system, electricity generation system and hold over system composition, as shown in Figure 1.Liquefied air system by
Motor (1), air compressor A (2), heat exchanger A (3), air compressor B (4), heat exchanger B (5), GM refrigeration machines (6) are low
Geothermal liquid expanding machine (7), liquid air storage tank (8) composition.The system drives air compressor by the use of wind-powered electricity generation as drive energy
Work after pure air is compressed by air compressor A, enters air compressor B after heat exchanger A is cooled to room temperature,
It after further being compressed, is cooled to room temperature by heat exchanger B, pressure-air enters GM refrigeration machines and further cools down and by throttling
Valve liquefies, and liquid air reaches storage tank and stored.
Electricity generation system is by cryogenic pump (9), gasification heat exchanger (10), heat exchanger C (11), turbine A (12), heat exchanger D (13),
Turbine B (14), heat exchanger E (15), turbine C (16), motor (17) composition.The system is in peak of power consumption, liquid air quilt
It draws, after cryogenic pump pressurizes, first in gasification heat exchanger by heating and gasifying, then with the high-temperature medium from thermal storage device in heat exchanger
Enter turbine A after exchanging heat in C to do work, then enter turbine B after being heated by heat exchanger D and do work, after finally being heated by heat exchanger E
It does work into turbine C, drives generator rotary electrification.
Hold over system is by cool storage container (18), circulating pump A (19), thermal storage device (20), circulating pump B (21) compositions.In the system
Origin of heat of the waste heat of compression process as reheating between the every grade of expansion of expansion unit is collected, entire energy storing and electricity generating process is no longer
Needing fossil fuel, it is complete " green " system to realize whole system as supplement；
The non-compensation combustion type liquefied air energy-storing and power-generating system of the present invention, using have intermittent, instable wind power generation it
Afterwards, wind-powered electricity generation as drive energy, start to work by band engine-driven air compressor, make pure air compressed after by heat exchanger and refrigeration
It after machine, does work and liquefies by cryogenic liquid expanding machine, final liquid air reaches liquid air storage tank and stored, and carries
The utilization rate of high wind energy extends the service life of whole device.
The non-compensation combustion type liquefied air energy-storing and power-generating system of the present invention using regenerative resource, is conducive to the cycle profit of resource
With, do not limited by geographical conditions, the working medium of use is pure air, will not to environment generate pollution and destroy, application range
Extensively, there is good commercial promise.
Above-described specific embodiment has carried out further the workflow of the purpose of the present invention, each system
Detailed description, it is achieved thereby that a kind of non-compensation combustion type liquefied air energy-storing and power-generating system.
Claims (3)
1. a kind of non-compensation combustion type liquefied air energy-storing and power-generating system, which is characterized in that it includes liquefied air system, electricity generation system
And hold over system three parts；
The liquefied air system is by motor (1), air compressor A (2), heat exchanger A (3), air compressor B (4), heat exchange
Device B (5), GM refrigeration machines (6), cryogenic liquid expanding machine (7), liquid air storage tank (8) composition；
The electricity generation system is by cryogenic pump (9), gasification heat exchanger (10), heat exchanger C (11), turbine A (12), heat exchanger D (13),
Turbine B (14), heat exchanger E (15), turbine C (16), motor (17) composition；
The hold over system is by cool storage container (18), circulating pump A (19), thermal storage device (20), circulating pump B (21) compositions.
2. a kind of non-compensation combustion type liquefied air energy-storing and power-generating system as described in claim 1, which is characterized in that in hold over system
Origin of heat of the waste heat of compression process as reheating between the every grade of expansion of expansion unit is collected, entire energy storing and electricity generating process is no longer
Needing fossil fuel, it is complete " green " system to realize whole system as supplement.
A kind of 3. non-compensation combustion type liquefied air energy-storing and power-generating system as described in claim 1, which is characterized in that liquefied air system
It is in liquefied air system for substituting the conventional high-tension liquid throttle valve of highly energy-consuming using cryogenic liquid expanding machine in system
Crucial energy-saving equipment can generate significant energy-saving benefit, to improve the efficiency of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710382883.0A CN108240235A (en) | 2017-05-26 | 2017-05-26 | A kind of non-compensation combustion type liquefied air energy-storing and power-generating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710382883.0A CN108240235A (en) | 2017-05-26 | 2017-05-26 | A kind of non-compensation combustion type liquefied air energy-storing and power-generating system |
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| Publication Number | Publication Date |
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| CN108240235A true CN108240235A (en) | 2018-07-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486479A (en) * | 2020-04-22 | 2020-08-04 | 东南大学 | Dual-fuel ship power system based on liquid air energy storage and use method thereof |
| CN113280573A (en) * | 2021-06-09 | 2021-08-20 | 中国科学院理化技术研究所 | Liquid air energy storage device with cold energy self-compensation function of cold accumulator |
| CN113958374A (en) * | 2021-09-22 | 2022-01-21 | 西安交通大学 | Partially-pumped multi-stage heat exchange liquefied air energy storage system and method |
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| CN111486479A (en) * | 2020-04-22 | 2020-08-04 | 东南大学 | Dual-fuel ship power system based on liquid air energy storage and use method thereof |
| CN111486479B (en) * | 2020-04-22 | 2021-08-24 | 东南大学 | Dual-fuel ship power system based on liquid air energy storage and use method thereof |
| CN113280573A (en) * | 2021-06-09 | 2021-08-20 | 中国科学院理化技术研究所 | Liquid air energy storage device with cold energy self-compensation function of cold accumulator |
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Application publication date: 20180703 |