CN108678931A - A kind of method that compressor pumping energy storage improves cogeneration cooling heating system flexibility - Google Patents
A kind of method that compressor pumping energy storage improves cogeneration cooling heating system flexibility Download PDFInfo
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- CN108678931A CN108678931A CN201810309293.XA CN201810309293A CN108678931A CN 108678931 A CN108678931 A CN 108678931A CN 201810309293 A CN201810309293 A CN 201810309293A CN 108678931 A CN108678931 A CN 108678931A
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000001816 cooling Methods 0.000 title claims abstract description 28
- 238000004146 energy storage Methods 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 title claims abstract description 25
- 238000005086 pumping Methods 0.000 title abstract 3
- 238000000605 extraction Methods 0.000 claims abstract description 16
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 239000003570 air Substances 0.000 claims description 99
- 239000007789 gas Substances 0.000 claims description 49
- 238000005338 heat storage Methods 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 6
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010795 Steam Flooding Methods 0.000 claims description 2
- 239000012080 ambient air Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 239000008400 supply water Substances 0.000 claims description 2
- 239000002918 waste heat Substances 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000010943 off-gassing Methods 0.000 abstract 2
- 230000005619 thermoelectricity Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
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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
- F01K13/00—General layout or general methods of operation of complete plants
-
- 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
- F01K21/00—Steam engine plants not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
- F03G6/064—Devices for producing mechanical power from solar energy with solar energy concentrating means having a gas turbine cycle, i.e. compressor and gas turbine combination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
- F03G6/065—Devices for producing mechanical power from solar energy with solar energy concentrating means having a Rankine cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses the method that a kind of pumping energy storage of compressor improves cogeneration cooling heating system flexibility, the abundant coupled solar Photo-thermal technology applications of this method.Energy storage technology can effectively solve solar energy fluctuation, intermittent problems, the discharge for improving gas turbine energy utilization rate, reducing pollutant.Consider the cold and hot electric load of user by when demand, determine that corresponding compressor bypass pumping energy storage subsystem extraction flow to control gas turbine group output power, realizes system variable load operation；Regulation and control compressed air releases energy subsystem outgassing flow and outgassing temperature-regulating system output work, enhances the system entirety equilibrium of supply and demand.Meanwhile the present invention also has many advantages, such as that whole efficiency is high, the allotment of thermoelectricity load is flexible, is suitable for exploring the fields such as the efficient of the energy, step, Multi-class propagation.
Description
Technical Field
The invention relates to the technical field of gas turbines, in particular to a method for improving flexibility of a combined cooling heating and power system by air extraction and energy storage of a gas compressor.
Background
The combined cooling heating and power system, as a novel multi-target energy supply form, accords with the energy gradient utilization principle, has high energy utilization rate, and is widely used in buildings such as industrial areas, office buildings, schools, hotels and the like at present.
At present, in practical engineering application, demand side load is influenced by factors such as seasons, day and night, and often shows great volatility, and this makes the cogeneration system have to deviate from the design operating mode operation, therefore adopts suitable variable working condition adjustment means to have great meaning. Meanwhile, the cogeneration system usually adopts a 'fixed power by heat' operation mode for utilizing energy input into the system to a greater extent, so that the output electric power of the system is not matched with the electric load on the demand side, and the problems of surplus electric power, low average load rate of a prime motor, low system efficiency and the like are easily caused. In the solar energy application process, the fluctuation and the indirection are not negligible, so that a novel system method which can realize the variable load operation of the gas turbine co-production system, improve the overall supply and demand balance, avoid the overall efficiency of the system from being too low and effectively overcome the solar negative effect is needed to be designed.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a method for improving the flexibility of a combined cooling, heating and power system by using a gas compressor to extract and store energy.
The purpose of the invention can be achieved by adopting the following technical scheme:
a method for improving flexibility of a combined cooling heating and power system by air exhaust and energy storage of a compressor comprises the following steps:
in the gas turbine unit 19, ambient air passes through the compressor 1 to form compressed air, and the compressed air is divided into two paths; one path of the high-temperature gas is mixed with fuel and combusted in the combustion chamber 2 to generate high-temperature gas, and the high-temperature gas is expanded by the gas turbine 3 to output electric power to supply power for users; the other path of compressed air enters a compressor bypass air exhaust and energy storage subsystem 20, and is finally stored in a solar heat collection and heat storage heat insulation air storage chamber 8 through a constant pressure valve 4, a flow regulating valve 5 and a one-way valve 6 in sequence, and a valve 7 of the solar heat collection and heat storage heat insulation air storage chamber 8 is a safety valve;
when the energy release subsystem 21 is put into operation, the released gas enters the air turbine 15 through the flow regulating valve 14 to realize external power supply;
the exhaust gas of the gas turbine 3 and the air turbine 15 enters a heat supply/cooling subsystem 22, the rest heat is recycled by a waste heat boiler 16 to supply water for heating to generate micro superheated steam, part of the steam supplies heat for users by a three-way steam flow control valve 18, and part of the steam drives a lithium bromide absorption type water cooling unit 17 to provide cold.
Further, the method comprises the following solar photo-thermal application process:
compressed air from the one-way valve 6 enters the heat-insulating air storage chamber 9 to realize compressed air energy storage, and meanwhile, the heat storage medium is heated by the solar energy light-heat effect through the solar heat collection heater 12 and then stored in the heat storage tank 11; when the energy release system is put into operation, the heat is released for heating through heat exchange.
Further, in the method, the process of adjusting the variable working condition of the gas turbine set 19 is as follows:
the gas turbine set 19 receives a gas turbine power instruction signal based on the atmospheric environment, when the user electricity demand is excessive, the opening degree of the constant-pressure air extraction valve 5 is opened and adjusted, and high-temperature and high-pressure air at the outlet of the shunting part of the gas compressor 1 is used as a raw material of the gas compressor bypass air extraction energy storage subsystem 20 so as to change the flow of working media in the gas turbine 3;
high-temperature and high-pressure air at the outlet of the gas compressor 1 is partially shunted, so that the flow of inlet air of the combustion chamber 2 is changed, and the exhaust temperature of the gas turbine 3 can be kept unchanged in order to ensure the safe operation of the unit; the fuel valve 23 receives an exhaust temperature command signal, and controls the valve opening to adjust the intake fuel flow rate.
Further, the method comprises the following solar photo-thermal application process:
the solar heat collection process is realized through the solar heat collection heater 12, the temperature control three-way valve 13 receives a system temperature control signal, and the heat storage medium is heated to reach a set temperature; in the energy releasing stage of the compressed air, the released air of the heat-insulating air storage chamber 9 is heated by the heat exchanger 10 and then enters the air turbine 15 to do work externally.
Further, the method realizes supply and demand balance through a coupling energy storage and release technology, wherein the release power adjustment process is as follows:
when the power supply of a user is insufficient, the compressed air energy release is started, the compressed air energy release subsystem 21 is used for realizing external work, and the insufficient power is made up; the flow regulating valve 14 receives a power command signal of the air turbine 15, controls the flow of the exhaust gas, and regulates the external work power of the air turbine 15.
Further, the method controls the flow of the steam for heating and the flow of the steam for cooling through a three-way steam flow control valve 18 in the heating/cooling subsystem 22, wherein the three-way steam flow control valve 18 adjusts the opening of the valve according to the user cooling/heating load instruction.
Further, the heat storage medium is heat conduction oil.
Compared with the prior art, the invention has the following advantages and effects:
1) high utilization rate of primary energy and less pollutant discharge. The invention introduces the air extraction energy storage technology, greatly reduces the waste of the residual energy, realizes the adjustment of variable working conditions and has little negative influence on the utilization rate of the primary energy of the system; clean energy is fully utilized, the solar photo-thermal effect is introduced, a heat storage means is applied, the fluctuation and intermittency of the energy are overcome, the utilization rate of the energy is improved, and the emission of pollutants is controlled.
2) The thermoelectric ratio regulation range is large. The air compressor air extraction energy storage technology partially decouples the strong coupling effect of the heat and power load of the gas turbine cogeneration unit, and the heat supply/cooling system can output certain heat and cooling capacity under the condition of no load of the gas turbine unit.
3) The balance of supply and demand of the whole system is enhanced. The invention comprehensively considers the load requirements of users, actively feeds back the actual requirements of the user energy through the control system, flexibly adjusts the output power of each part, cuts peaks and fills valleys and improves the balance.
Drawings
FIG. 1 is a schematic diagram of the operation of a combined cooling, heating and power system for improving the air extraction and energy storage of a compressor in the invention;
FIG. 2 is a schematic view of a solar heat collecting and storing insulated air storage chamber according to the present invention;
FIG. 3 is a method of regulation provided by the present invention; wherein,
FIG. 3(a) is a method for regulating power of a gas turbine plant;
FIG. 3(b) is a temperature control regulation method for solar heat utilization;
FIG. 3(c) is an air turbine power regulation method;
FIG. 3(d) shows a method for regulating the output of cold and heat of the system.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in the schematic structural diagram of fig. 1, the gas turbine set 19 uses air and fuel as raw materials to supply power to the outside. The air compressor 1 is provided with a bypass air extraction pipeline, and part of high-pressure and high-temperature air is shunted by the bypass pipeline to be used as a raw material of the air compressor bypass air extraction and energy storage subsystem 20 and stored in the solar heat collection and heat storage heat insulation air storage chamber 8; wherein, the constant pressure valve 4 is used for keeping the air flow in the pipeline controllable, the check valve 6 is used for preventing the air in the pipeline from flowing backwards, and a safety valve 7 is arranged.
The compressed air energy release subsystem 21 supplies electricity to the outside through the air turbine 15. The exhaust heat boiler 16 recovers exhaust heat of the gas turbine 3 and the air turbine 15 to heat water so as to generate micro superheated steam, wherein part of the micro superheated steam is used for supplying heat, and part of the micro superheated steam is used for driving the lithium bromide absorption type water chilling unit 17 to provide cooling capacity.
As shown in the schematic diagram of the solar heat collection and heat storage and insulation air storage chamber in the attached figure 2, the energy flow process is as follows: compressed air from the one-way valve 6 enters the heat-insulating air storage chamber 9 to realize compressed air energy storage, and meanwhile, heat conduction oil is heated by the solar heat collection heater 12 and stored in the heat conduction oil tank 11 after being heated and warmed by solar light-heat. When the energy release system is put into operation, the air in the heat insulation air storage chamber 9 is heated by the oil-gas heat exchanger 10, the temperature of the air is regulated by the temperature control three-way valve 13, and finally the air enters the flow regulating valve 14.
Fig. 3 shows a method according to the present invention, which mainly includes four parts as shown in the figure:
as shown in fig. 3(a), a method for regulating power of a gas turbine plant; when the electric power is excessive, the gas turbine set sends a power instruction signal to the constant-pressure air extraction valve 5, the opening of the valve is controlled, high-temperature and high-pressure air at the outlet of the air compressor 1 is divided, and the flow of working medium in the gas turbine 3 is controlled, so that the power regulation of the gas turbine set is realized. Due to air flow distribution, the air inlet flow in the combustion chamber 2 is correspondingly reduced, and the exhaust temperature of the gas turbine 3 can be kept unchanged in order to ensure the safe operation of the unit. The fuel valve 23 receives the gas turbine exhaust temperature instruction signal and the gas turbine power signal instruction, and controls the valve opening to adjust the flow of the intake fuel, thereby ensuring the stability and safety of the combustion process.
As shown in fig. 3(b), a temperature control method for solar heat utilization; when the solar heat collection heater 12 works, the temperature control three-way valve 13 receives a system temperature control signal and reaches a set temperature through the heat storage medium.
As shown in fig. 3(c), an air turbine power regulation method; the flow regulating valve 14 receives a power command signal of the air turbine 15, controls the air release flow, and controls the external acting power of the air turbine 15, so that the purposes of peak clipping and valley filling are achieved, and the supply and demand electric power is balanced.
As shown in fig. 3(d), a method for regulating the output of cold and heat of the system is provided; the three-way steam flow control valve 18 adjusts the opening of the valve according to the user cold/heat load instruction, determines the flow of the steam for heat supply and the flow of the steam for cold supply, and meets the user requirements.
The four parts are mutually coordinated and have stronger flexibility respectively, and the main purpose of the invention is realized together.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. A method for improving flexibility of a combined cooling heating and power system by air exhaust and energy storage of a compressor is characterized by comprising the following steps:
in the gas turbine set (19), ambient air forms compressed air through the compressor (1), and the compressed air is divided into two paths; one path of the high-temperature gas is mixed with fuel and combusted in the combustion chamber (2) to generate high-temperature gas, and the high-temperature gas is expanded by the gas turbine (3) to output electric power to supply power for users; the other path of compressed air enters a compressor bypass air extraction and energy storage subsystem (20), and is finally stored in a solar heat collection and heat storage heat insulation air storage chamber (8) through a constant pressure valve (4), a flow regulating valve (5) and a one-way valve (6) in sequence, and a valve (7) of the solar heat collection and heat storage heat insulation air storage chamber (8) is a safety valve;
when the energy release subsystem (21) is put into operation, the released gas enters the air turbine (15) through the flow regulating valve (14) to realize external power supply;
exhaust gas of the gas turbine (3) and the air turbine (15) enters a heat supply/cooling subsystem (22), the rest heat is recycled by a waste heat boiler (16) to supply water for heating to generate micro superheated steam, part of the steam supplies heat for users by a three-way steam flow control valve (18), and part of the steam drives a lithium bromide absorption type water chilling unit (17) to provide cooling capacity.
2. The method for improving the flexibility of a combined cooling, heating and power system by utilizing the air compressor to extract air and store energy according to claim 1, wherein the method comprises the following solar photo-thermal application processes:
compressed air from the one-way valve (6) enters the heat-insulating air storage chamber (9) to realize compressed air energy storage, and meanwhile, the heat storage medium is heated by the solar energy photo-thermal action through the solar heat collection heater (12) and then stored in the heat storage tank (11); when the energy release system is put into operation, the heat is released for heating through heat exchange.
3. The method for improving the flexibility of the combined cooling, heating and power system through the air compressor air extraction and energy storage according to claim 1, wherein in the method, the process of adjusting the gas turbine set (19) in the variable working condition is as follows:
the gas turbine set (19) receives a gas turbine power instruction signal based on the atmospheric environment, when the user electricity demand is excessive, the opening of the constant-pressure air extraction valve (5) is opened and adjusted, and high-temperature and high-pressure air at the outlet of the partial gas compressor (1) is divided to be used as a raw material of the gas compressor bypass air extraction energy storage subsystem (20) so as to change the flow of working media in the gas turbine (3);
high-temperature and high-pressure air at the outlet of the air compressor (1) is partially shunted, so that the flow of inlet air of the combustion chamber (2) is changed, and the exhaust temperature of the gas turbine (3) can be kept unchanged in order to ensure the safe operation of the unit; the fuel valve (23) receives an exhaust temperature command signal, and controls the valve opening to adjust the intake fuel flow rate.
4. The method for improving the flexibility of a combined cooling, heating and power system by utilizing the air compressor to extract air and store energy according to claim 1, wherein the method comprises the following solar photo-thermal application processes:
the solar heat collection process is realized through a solar heat collection heater (12), a temperature control three-way valve (13) receives a system temperature control signal, and a heat storage medium is heated to reach a set temperature; in the energy releasing stage of the compressed air, the released air of the heat-insulating air storage chamber (9) is heated by the heat exchanger (10) and then enters the air turbine (15) to do work outwards.
5. The method for improving the flexibility of a combined cooling, heating and power system through compressor air extraction energy storage according to claim 1, wherein the method realizes supply and demand balance through a coupled energy storage and release technology, wherein the release power adjustment process comprises the following steps:
when the power supply of a user is insufficient, the compressed air energy release is started, the compressed air energy release subsystem (21) is used for realizing external work, and the insufficient power is made up; the flow regulating valve (14) receives a power command signal of the air turbine (15), controls the air release flow, and regulates the external work power of the air turbine (15).
6. The method for improving the flexibility of a combined cooling, heating and power system through compressor bleed-off energy storage according to claim 1, wherein the method controls the flow of steam for heating and the flow of steam for cooling through a three-way steam flow control valve (18) in the heating/cooling subsystem (22), wherein the three-way steam flow control valve (18) adjusts the opening of the valve according to a user cooling/heating load instruction.
7. The method for improving the flexibility of a combined cooling, heating and power system through air compressor air extraction and energy storage according to claim 2, wherein the heat storage medium is heat conduction oil.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944698A (en) * | 2019-04-10 | 2019-06-28 | 山东大学 | A kind of method and system improving gas turbine electricity, heat and cold union supply flexibility |
| CN110778442A (en) * | 2019-10-16 | 2020-02-11 | 华南理工大学 | Method and system for improving peak shaving power supply energy efficiency by using vertical pipe to charge and discharge seawater for energy storage |
| CN114856735A (en) * | 2022-04-25 | 2022-08-05 | 中国能源建设集团江苏省电力设计院有限公司 | Air turbine coupling gas turbine power generation system based on compressed air energy storage |
| CN116412030A (en) * | 2023-06-07 | 2023-07-11 | 东方电气集团东方汽轮机有限公司 | Multifunctional gas turbine power generation system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000337109A (en) * | 1999-05-27 | 2000-12-05 | Mitsubishi Heavy Ind Ltd | Compressor surge preventing system of carbon dioxide recovery type power generating plant |
| CN101994528A (en) * | 2009-08-13 | 2011-03-30 | 通用电气公司 | Ntegrated gasification combined cycle (igcc) power plant steam recovery system |
| CN102880987A (en) * | 2012-08-24 | 2013-01-16 | 华南理工大学 | Novel maintenance strategy formulating method for gas turbine |
| US20130276440A1 (en) * | 2009-06-29 | 2013-10-24 | Lightsail Energy, Inc. | Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| US20150020499A1 (en) * | 2013-07-17 | 2015-01-22 | Kabushiki Kaisha Toshiba | Control valve control method and control device, and power generating plant utilizing same |
| CN204254930U (en) * | 2014-11-03 | 2015-04-08 | 余思敏 | The municipal sewage cooling heating and power generation system of coupling multiple renewable energy sources |
| CN104755722A (en) * | 2012-11-21 | 2015-07-01 | 三菱日立电力系统株式会社 | Power generation system, method for powering power generation system, and combustor |
| CN106439915A (en) * | 2016-09-27 | 2017-02-22 | 华南理工大学 | Gas turbine combustion chamber low-nitrogen combustion device and combustion method thereof |
-
2018
- 2018-04-09 CN CN201810309293.XA patent/CN108678931B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000337109A (en) * | 1999-05-27 | 2000-12-05 | Mitsubishi Heavy Ind Ltd | Compressor surge preventing system of carbon dioxide recovery type power generating plant |
| US20130276440A1 (en) * | 2009-06-29 | 2013-10-24 | Lightsail Energy, Inc. | Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
| CN101994528A (en) * | 2009-08-13 | 2011-03-30 | 通用电气公司 | Ntegrated gasification combined cycle (igcc) power plant steam recovery system |
| CN102880987A (en) * | 2012-08-24 | 2013-01-16 | 华南理工大学 | Novel maintenance strategy formulating method for gas turbine |
| CN104755722A (en) * | 2012-11-21 | 2015-07-01 | 三菱日立电力系统株式会社 | Power generation system, method for powering power generation system, and combustor |
| US20150020499A1 (en) * | 2013-07-17 | 2015-01-22 | Kabushiki Kaisha Toshiba | Control valve control method and control device, and power generating plant utilizing same |
| CN204254930U (en) * | 2014-11-03 | 2015-04-08 | 余思敏 | The municipal sewage cooling heating and power generation system of coupling multiple renewable energy sources |
| CN106439915A (en) * | 2016-09-27 | 2017-02-22 | 华南理工大学 | Gas turbine combustion chamber low-nitrogen combustion device and combustion method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944698A (en) * | 2019-04-10 | 2019-06-28 | 山东大学 | A kind of method and system improving gas turbine electricity, heat and cold union supply flexibility |
| CN110778442A (en) * | 2019-10-16 | 2020-02-11 | 华南理工大学 | Method and system for improving peak shaving power supply energy efficiency by using vertical pipe to charge and discharge seawater for energy storage |
| CN114856735A (en) * | 2022-04-25 | 2022-08-05 | 中国能源建设集团江苏省电力设计院有限公司 | Air turbine coupling gas turbine power generation system based on compressed air energy storage |
| CN114856735B (en) * | 2022-04-25 | 2023-11-17 | 中国能源建设集团江苏省电力设计院有限公司 | Air turbine coupling gas turbine power generation system based on compressed air energy storage |
| CN116412030A (en) * | 2023-06-07 | 2023-07-11 | 东方电气集团东方汽轮机有限公司 | Multifunctional gas turbine power generation system |
| CN116412030B (en) * | 2023-06-07 | 2023-10-20 | 东方电气集团东方汽轮机有限公司 | Multifunctional gas turbine power generation system |
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