CN110005543B - Distributed combined power generation system based on heat pump electricity storage technology and method thereof - Google Patents
Distributed combined power generation system based on heat pump electricity storage technology and method thereof Download PDFInfo
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- CN110005543B CN110005543B CN201910245301.3A CN201910245301A CN110005543B CN 110005543 B CN110005543 B CN 110005543B CN 201910245301 A CN201910245301 A CN 201910245301A CN 110005543 B CN110005543 B CN 110005543B
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- 230000005611 electricity Effects 0.000 title claims abstract description 73
- 238000010248 power generation Methods 0.000 title claims abstract description 46
- 238000005516 engineering process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005338 heat storage Methods 0.000 claims abstract description 110
- 238000001816 cooling Methods 0.000 claims abstract description 96
- 241000353097 Molva molva Species 0.000 claims description 24
- 239000000110 cooling liquid Substances 0.000 claims description 21
- 230000005494 condensation Effects 0.000 claims description 11
- 238000009833 condensation Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 239000002826 coolant Substances 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000009347 mechanical transmission Effects 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 9
- 239000002918 waste heat Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 241000282414 Homo sapiens Species 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000002803 fossil fuel Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
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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
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
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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
- F03D—WIND MOTORS
- F03D15/00—Transmission of mechanical power
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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
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/10—Combinations of wind motors with apparatus storing energy
- F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H02J3/382—
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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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention discloses a distributed combined power generation system and a method based on a heat pump power storage technology, wherein the distributed combined power generation system consists of a heat pump power storage system, a solar concentrating system, a diesel generator set and a cooling system thereof, a heat storage/cooling system, an electric power system and a wind motor set; the heat pump electricity storage system performs energy charging and energy releasing through positive and negative thermal power circulation; the solar concentrating system transmits and stores concentrated heat energy in the heat storage tank; the diesel engine generator set and the cooling system thereof are main power generation subsystems, wherein the cooling system can switch a cooling loop by controlling a three-way valve, and the waste heat of tail gas is stored in a heat storage tank; the heat storage/cooling system is a place for exchanging and storing heat; the power system is connected with each generator and the user side through power equipment; the switching of a plurality of operation modes is realized through a planetary gear box of the wind turbine generator; the invention utilizes the heat pump electricity storage technology to weaken the fluctuation of solar energy and wind energy power generation, fully utilizes the waste heat of the diesel engine, reduces the emission and improves the heat efficiency.
Description
Technical Field
The invention relates to the field of energy, in particular to the technical field of combined power generation, and particularly relates to a distributed combined power generation system and a method based on a heat pump power storage technology.
Technical Field
Energy is a power source for human activities and is essential for maintaining the living standard of human beings. The electric energy is the energy source with the widest human utilization range and the greatest demand, but is mainly obtained by processing primary energy source as secondary energy source. At present, nearly two-thirds of the world's electricity is produced from fossil fuels, which results in nearly 25% of greenhouse gas emissions. And fossil fuels themselves, as a non-renewable energy source, are also not available for human sustained use. Thus, rapid decarbonization of global electrical infrastructure requires a shift from fossil fuels to renewable energy sources.
However, because renewable energy sources such as solar energy, wind energy and the like are discontinuous and unstable in power generation, and the supply end and the demand end of the electric energy are not matched in time and space, the phenomena of light discarding and wind discarding are serious when the renewable energy sources generate power, and energy storage is a technology for converting one type of energy into another type and recovering the stored energy in an efficient, low-cost and reliable manner when the energy is needed.
The heat storage technology is used as one of energy storage technologies, the existing renewable energy power generation based on heat storage mainly absorbs and releases solar heat energy generated by condensation through heat storage materials, and the utilization efficiency is low. The heat pump electricity storage technology is an efficient energy storage technology which is rising in recent years, has high energy storage density and large capacity, is not limited by geographic positions, and is still in a laboratory stage.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a distributed combined power generation system and a method based on a heat pump power storage technology, which can fully utilize the heat pump power storage technology to weaken the fluctuation of solar energy and wind energy power generation, fully utilize the waste heat of a diesel engine, reduce the fuel consumption of the diesel engine, reduce the emission and improve the efficiency of the diesel engine.
The invention firstly discloses a distributed combined power generation system and a method based on a heat pump power storage technology.
The heat pump electricity storage system is a subsystem for performing forward and reverse thermodynamic cycles, and comprises: the piston type expansion/compressor is crank-link type machinery, wherein one end of an air passage communicated with the air cylinder is connected with a storage Leng Huanre device, the other end of the air passage is connected with a heat storage heat exchanger, two ends of a crankshaft of the piston type expansion/compressor are respectively connected with a clutch B and a clutch D, and the piston type expansion/compressor can be used as an expander or a compressor according to different working medium flow directions depending on specific thermodynamic cycles; the two ends of the heat storage heat exchanger are respectively connected with the piston type expansion/compressor and the turbine type expansion/compressor, and the working medium exchanges heat with the hot flow working medium in the heat storage/cooling system; the turbine expansion/compressor has two working medium inlets/outlets connected to the heat storage heat exchanger and the Leng Huanre accumulator, and the working medium may be used as expander or compressor in different flow directions depending on the thermodynamic cycle; the two ends of the storage Leng Huanre device are respectively connected with the turbine expansion/compressor and the piston expansion/compressor, and the working medium exchanges heat with cold flow working medium in the heat storage/cooling system; a clutch A, two ends of which are respectively connected with a turbine expansion/compressor and a generator A of the electric power system; the two ends of the clutch B are respectively connected with the piston type expansion/compressor and the generator B of the electric power system; and two ends of the clutch D are respectively connected with the planetary gear box and the piston type expansion/compressor of the wind turbine.
The solar concentrating system is a place for collecting and transferring solar concentrating heat energy, and comprises: solar radiation is on a solar condensing plate, the temperature of the solar condensing plate rises after the solar radiation is absorbed, and heat is transferred into a working medium; the condensing heat storage working medium pump is connected in series in the working medium circulation loop; the working medium is powered by a condensing heat storage working medium pump, flows through a solar condensing plate and stores heat in a heat storage tank of the heat storage/cooling system.
The diesel engine generator set and the cooling system thereof are main power generating components, the air inlet of the diesel engine is natural air suction, and the tail gas flows through the heat storage tank of the heat storage/cooling system through a pipeline to store heat and then is discharged to the environment, and the crankshaft of the diesel engine is connected with the generator B of the electric power system; a cooling liquid pump and a diesel engine body are arranged on one branch path between the two cooling liquid flowing three-way valves, the second branch path is a conventional cooling loop, and the third branch path is a cold storage cooling loop exchanging heat with the cold storage tank; a radiator and a cooling fan are connected in series on the conventional cooling loop; the coolant pump is driven by an external diesel engine front end belt pulley through belt transmission connection.
The heat/cold storage system, comprising: the heat storage tank is internally provided with a heat storage temperature sensor, is one of the components for storing heat, and carries three different heat sources of working media to flow through and exchange heat: the heat flow working medium of the solar concentrating system, the diesel engine tail gas of the diesel engine generator set and the cooling system thereof and the heat storage working medium of the heat storage/cooling system; the heat storage working medium pump is connected in series in the heat storage loop, the upstream is connected with a heat storage heat exchanger of the heat pump electricity storage system, and the downstream is connected with the heat storage tank; the cold storage tank is internally provided with a cold storage temperature sensor, is another part for storing heat, and performs heat exchange between the cold storage tank Leng Gongzhi and the cooling liquid of the diesel engine generator set and the cooling system thereof; the storage Leng Gongzhi pump is connected in series in the cold storage loop, the upstream is connected with the storage Leng Huanre device of the heat pump electricity storage system, and the downstream is connected with the cold storage tank.
The power system, comprising: the rotor of the generator A, namely a rotor shaft of the generator A, is directly connected with a clutch A of the heat pump electricity storage system and is connected with a rotor shaft gear of the generator A through a synchronizer of the generator A; the two ends of the rotor of the generator B can be driven by the rotary input part, one end of the generator B is connected with the clutch B of the heat pump electricity storage system, and the other end of the generator B is connected with the diesel engine generator set and the diesel engine crankshaft of the cooling system of the diesel engine generator set; the input end of the transformer box is connected with the generator A and the generator B through electric power, and the output end of the transformer box is connected with the user end; the gear of the rotor shaft of the generator A is sleeved on the rotor shaft of the generator A in an empty mode, and can be connected with the rotor shaft of the generator A through a synchronizer of the generator A, and the gear is meshed with the outer portion of the gear ring of the planetary gear box of the wind turbine generator; the generator A rotor shaft is an extension shaft of the generator A rotor outside the motor, a gear of the generator A rotor shaft is sleeved on the generator A rotor shaft, the generator A rotor shaft is connected with the shaft through a generator A synchronizer on the shaft, and the other end of the shaft is connected with a clutch A of the heat pump electricity storage system; the generator A synchronizer is rigidly connected with the generator A rotor shaft and can be connected with the generator A rotor shaft gear according to the requirements.
The wind turbine generator is wind power generation equipment and a coupling component thereof with other systems of the invention, and comprises: the fan impeller is connected with one end of the clutch C through mechanical transmission; one end of the clutch C is mechanically connected with the fan impeller, and the other end of the clutch C is connected with the planetary gear box; the planetary gear box is a coupling component of the wind turbine generator and the heat pump electricity storage system, wherein a planet carrier is connected with a clutch C, a sun gear is connected to one end of a clutch D of the heat pump electricity storage system, the outside of a gear ring is meshed with a rotor shaft gear of a generator A of the electric power system, a gear ring brake can be contacted with and fixed on a gear ring rotary shaft, and a sun gear brake can be contacted with and fixed on a sun gear.
The invention also discloses a distributed combined power generation method based on the heat pump power storage technology of the system, which comprises the following steps:
when the wind power in the region is strong enough to drive the fan to generate power and the power consumption requirement of the user side is not higher than the power supply of the wind turbine, the wind turbine is used for generating power independently;
when the energy supply of the wind turbine generator is higher than the electricity demand of the user side, the wind power drives the heat pump electricity storage system to reversely circulate to charge energy;
when the wind power generation is lower than the requirement of a user side, the diesel engine generator set and the heat pump electricity storage system generate electricity independently or jointly;
the heat pump electricity storage system only operates in an energy release mode to generate electricity when the heat storage temperature sensor and the cold storage temperature sensor display that the heat storage tank and the cold storage tank have heat energy meeting corresponding requirements; the independent power generation of the heat pump power storage system is only carried out when the power consumption requirement of the user side is smaller than the power generation capacity of the heat pump power storage system S1;
when in combined power generation, the power of a piston expansion/compressor of a heat pump power storage system, a power generator B of a power system, a fan impeller of a wind turbine generator, a power generator A of the power system and the power of a turbine expansion/compressor of the heat pump power storage system are coupled together, a diesel engine power generator set and a diesel engine crankshaft of a cooling system of the diesel engine power generator set are connected with the power generator B to realize power generation, and the power generator A and the power generator B of the power system are connected with a user side through a power transformation box to realize power utilization supply and demand matching;
when the temperature in the cold storage tank is displayed by the cold storage temperature sensor to meet the cooling requirement of the diesel engine cooling system, the cooling liquid flows to the three-way valve to control the cooling liquid to flow through the cold storage cooling loop to the cold storage tank for cold storage cooling, and when the temperature in the cold storage tank is displayed by the cold storage temperature sensor to be lower than the cooling requirement of the diesel engine cooling system, the cooling liquid flows to the three-way valve to control the cooling liquid to flow to the radiator and the cooling fan from the conventional cooling loop for conventional cooling.
Compared with the prior art, the invention has the following main beneficial effects:
(1) The invention utilizes the heat pump storage technology to solve the problem of mismatching of wind power and solar energy supply and demand in time while efficiently utilizing the fuel oil chemical energy, wind energy and solar concentrated internal energy.
(2) According to the invention, the heat energy of the tail gas of the diesel engine is directly stored in the heat storage tank in a heat exchange manner, so that the working waste heat of the diesel engine is fully utilized, and the fuel utilization efficiency is improved.
(3) According to the invention, the low-temperature heat energy in the cold storage tank is subjected to heat exchange with the diesel engine cooling liquid, so that the refrigeration effect in the heat pump electricity storage technology is fully utilized, the energy consumption of the diesel engine radiator and the fan is reduced to a certain extent, and the comprehensive energy utilization efficiency is improved.
(4) In the invention, a plurality of power components are efficiently coupled through the planetary gear box, so that the problem of motion interference during the operation of a complex system is effectively avoided.
Drawings
FIG. 1 is a schematic diagram of a system of the present invention;
FIG. 2 is a schematic diagram of the system architecture of the present invention;
FIG. 3 is a schematic diagram of a planetary gearbox coupling connection of the present invention;
FIG. 4 is a schematic diagram of the charging process of the heat pump electricity storage system of the present invention;
FIG. 5 is a schematic diagram of the energy release process of the heat pump electricity storage system of the present invention;
FIG. 6 is a schematic diagram of a coupling connection during charging in accordance with the present invention;
FIG. 7 is a schematic diagram of a coupling connection of the energy release process of the present invention;
FIG. 8 is a schematic diagram of a wind alone power generation coupling connection of the present invention;
FIG. 9 is a schematic diagram of the stored-cold cooling of a diesel-electric generator set of the present invention;
FIG. 10 is a schematic diagram of a conventional cooling of a diesel-electric set according to the present invention;
wherein, the liquid crystal display device comprises a liquid crystal display device, S1-heat pump electricity storage system, S2-solar condensing system, S3-diesel generator set and cooling system thereof, S4-heat storage/cooling system, S5-power system, S6-wind generator set, 11-piston expansion/compressor, 12-heat storage heat exchanger, 13-turbine expansion/compressor, 14-clutch A, 15-storage Leng Huanre, 16-clutch B, 17-clutch D, 111-piston expansion/compressor crankshaft, 21-solar condensing plate, 22-condensing heat storage working medium pump, 31-diesel engine, 32-coolant flow three-way valve, 33-radiator and cooling fan, 34-cooling liquid pump, 321-cold storage cooling loop, 322-conventional cooling loop, 41-heat storage tank, 42-heat storage working medium pump, 43-cold storage tank, 44-heat storage Leng Gongzhi pump, 411-heat storage temperature sensor, 431-cold storage temperature sensor, 51-generator A, 52 generator B, 53-power conversion box, 54-user side, 511-generator A rotor shaft gear, 512-generator A, 61-generator A, 625-rotor shaft, gear wheel and gear wheel, 623-622-wheel brake, gear wheel and gear wheel, 623-622-brake, gear wheel and gear wheel brake, 623-622-brake, and gear wheel brake.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The preferred embodiments of the present invention are illustrated in the drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1, the distributed combined power generation system and the method based on the heat pump power storage technology provided by the invention comprise a heat pump power storage system S1, a solar concentrating system S2, a diesel engine generator set and a cooling system S3 thereof, a heat storage/cooling system S4, a power system S5 and a wind motor set S6.
As shown in fig. 1-3, the heat pump electricity storage system S1 is a subsystem for performing a forward and reverse thermodynamic cycle, and includes: the piston type expansion/compressor 11 is crank-link type machinery, wherein one end of an air passage communicated with an air cylinder is connected with a storage Leng Huanre device 15, the other end of the air passage is connected with a heat storage heat exchanger 12, two ends of a crankshaft 111 of the piston type expansion/compressor are respectively connected with a clutch B16 and a clutch D17, and the piston type expansion/compressor can be used as an expander or a compressor according to different working medium flow directions in terms of specific thermodynamic cycle; a heat storage heat exchanger 12, two ends of which are respectively connected with the piston expansion/compressor 11 and the turbine expansion/compressor 13, in which the working medium exchanges heat with the hot fluid working medium in the heat storage/cooling system S4; the turbine expansion/compressor 13 has two working medium inlets/outlets respectively connected with the heat storage heat exchanger 12 and the heat storage Leng Huanre device 15, and can be used as an expander or a compressor according to different working medium flow directions depending on specific thermodynamic cycle; a storage Leng Huanre device 15, two ends of which are respectively connected with the turbine expansion/compressor 13 and the piston expansion/compressor 11, wherein the working medium exchanges heat with cold flow working medium in the heat storage/cold system S4; a clutch a14, both ends of which are respectively connected to the turbo-expansion/compressor 13 and the generator a51 of the electric power system S5; a clutch B16, two ends of which are respectively connected to the piston expansion/compressor 11 and the generator B52 of the electric power system S5; and the two ends of the clutch D17 are respectively connected with the planetary gear box 62 and the piston expansion/compressor 11 of the wind turbine generator S6.
As shown in fig. 2, the solar concentrating system S2 is a place for collecting and transferring solar concentrating heat energy, and includes: a solar energy condensing plate 21 on which solar radiation is on, the solar energy condensing plate being raised in temperature after absorption of the solar radiation, heat being transferred into the working medium; a condensed heat storage working medium pump 22 connected in series in the working medium circulation loop; the working fluid is powered by a concentrated heat storage working fluid pump 22, flows through a solar concentrating panel 21 and stores heat in a heat storage tank 41 of the heat storage/cold system S4.
As shown in fig. 2, the diesel generator set and the cooling system S3 thereof are main power generating components of the present invention, and include: the diesel engine 31, the air intake of which is natural air intake, the tail gas passes through the heat storage tank of the heat storage/cooling system S4 through a pipeline to transfer heat to the heat storage tank and then is discharged to the environment, and the diesel engine crankshaft is connected with the generator B52 of the electric power system S5; a coolant pump 34, the downstream of which is connected with the coolant flow three-way valve 32, and the upstream of which is connected with the body of the diesel engine 31, and which is driven by an external front end belt pulley of the diesel engine through belt transmission connection; the coolant flows to the three-way valve 32, is arranged in a coolant flow path of the diesel engine cooling system, and three interfaces are communicated with a conventional cooling loop 322, a cold storage cooling loop 321 and a diesel engine 31 body; the radiator and the cooling fan 33 are conventional diesel engine cooling components, and are connected in series in a coolant conventional cooling circuit 321, and two ends of the radiator and the cooling fan are respectively communicated with two coolant flowing to the three-way valve 32.
As shown in fig. 2, the heat storage/cooling system S4 includes: the heat storage tank 41 is internally provided with a heat storage temperature sensor 411, is one of the components for storing heat, and carries three different heat sources for heat exchange through the working medium: the heat flow working medium of the solar condensation system S2, the diesel engine generator set and the diesel engine tail gas of the cooling system S3 and the heat storage working medium of the heat storage/cooling system S4; a heat storage working medium pump 42 connected in series in the heat storage loop, wherein the upstream is connected with the heat storage heat exchanger 12 of the heat pump electricity storage system S1, and the downstream is connected with the heat storage tank 41; a cold storage tank 43, in which a cold storage temperature sensor 431 is built, is another component for storing heat, and the heat exchange between the storage Leng Gongzhi and the cooling liquid of the diesel generator set and the cooling system 3 thereof is performed; the storage Leng Gongzhi pump 44 is connected in series in the cold storage loop, and is connected with the storage Leng Huanre device 15 of the heat pump electricity storage system S1 at the upstream and the cold storage tank 41 at the downstream.
As shown in fig. 1-3, the power system S5 includes: generator a51, the rotor of which, generator a rotor shaft 512, is directly connected to clutch a14 of the heat pump electricity storage system S1 and is connected to generator a rotor shaft gear 511 via generator a synchronizer 513; the two ends of the rotor of the generator B52 can be driven by the rotation input component, one end of the generator B52 is connected with the clutch B16 of the heat pump electricity storage system S1, and the other end of the generator B52 is connected with the diesel engine generator set and the diesel engine crankshaft of the cooling system S3 thereof; the input end of the transformer box 53 is connected with the generator A51 and the generator B52 through electric power, and the output end of the transformer box is connected with the user end 54; generator a rotor shaft gear 511, which is sleeved on generator a rotor shaft 512, may be connected to generator a rotor shaft 512 through generator a synchronizer 513, and is meshed with the outer part of ring gear 622 of planetary gear box 62 of wind turbine S6; the generator A rotor shaft 512 is an extension shaft of the rotor of the generator A51 outside the motor, the generator A rotor shaft gear 511 is sleeved on the extension shaft, the generator A rotor shaft is connected with the shaft through a generator A synchronizer 513 on the shaft, and the other end of the shaft is connected with a clutch A14 of the heat pump electricity storage system S1; generator A synchronizer 513 is rigidly coupled to generator A rotor shaft 512 and may be coupled to generator A rotor shaft gear 511 as desired.
As shown in fig. 1-3, the wind turbine generator S6, which is a wind power generation device and its coupling components with other systems of the present invention, includes: the fan impeller 61 is connected with one end of the clutch C63 through mechanical transmission; a clutch C63 having one end mechanically connected to the fan impeller 61 and the other end connected to the planetary gear box 62; planetary gear box 62, which is a coupling component of the wind turbine generator S6 and the heat pump electricity storage system S1 according to the present invention, wherein, a planet carrier 621 is connected with a clutch C63, a sun gear 623 is connected to one end of a clutch D17 of the heat pump electricity storage system S1, the outside of a gear ring 622 is meshed with a rotor shaft gear 511 of a generator a of the electric power system S5, a gear ring brake 624 may contact and fix a rotating shaft of the gear ring 622, and a solar wheel brake 625 may contact and fix the sun gear 623.
The working process of the invention is as follows:
the distributed combined power generation system and the method based on the heat pump power storage technology can switch the working modes according to the local wind power, the solar intensity and the power demand of the user side, so that the power demand of the user side is met, the fuel consumption of a diesel engine is reduced, and the emission is reduced. Several typical modes of operation are as follows:
(1) As shown in the accompanying drawings 2 and 8, when the wind power of the region is strong enough to drive the fan to generate power and the power consumption requirement of the user side is low, the wind power generation system works in a fan independent power generation mode. At this time, the clutch a14, the clutch B16, and the clutch D17 are disengaged, the clutch C63 is engaged, the generator a synchronizer 513 is engaged with the generator a rotor shaft gear 511, the ring gear brake 624 is not operated, and the solar wheel brake 625 is in a braking state; the wind energy is converted into the rotor kinetic energy by the fan impeller 61, and in the planetary gear box 62, as the sun gear 623 is fixed, the power is transmitted from the planet carrier 621, and is transmitted from the gear ring 622, so that the speed-increasing transmission is realized; because the external gear of the gear ring 622 is meshed with the gear of the rotor shaft of the generator a, the gear further drives the rotor shaft 512 of the generator a to rotate, so as to realize power generation, and the power is transported to the power transformation box 53 and finally distributed to the user end 54.
(2) In the process of energy charging (electricity storage) of the heat pump electricity storage system, as shown in fig. 2, fig. 4 and fig. 6, when the wind power of the region is strong and the electricity demand of a user side is low, the wind power drives the heat pump electricity storage system S1 to reversely circulate for energy charging. At this time, the clutch a14, the clutch C63, and the clutch D17 are in the engaged state, the clutch B16 is disengaged, the generator a synchronizer 513 is disengaged from the generator a rotor shaft gear 511, the solar wheel brake 625 is not operated, and the ring gear brake 624 is in the braked state; the wind energy is converted into the rotor kinetic energy by the fan impeller 61, and in the planetary gear box 62, as the gear ring 622 is fixed, the power is transmitted from the planet carrier 621, and is transmitted from the sun gear 623, so that the speed-increasing transmission is realized; as the clutch D17 is engaged, the piston expansion/compressor crankshaft 111 is further driven, and at this time, the piston expansion/compressor 11 is in a compressor working state, and compresses the circulating working medium; the compressed circulating working medium releases heat in the heat storage heat exchanger 12, and is driven by the heat storage working medium pump 42, and the heat is further transferred and stored in the heat storage tank 41; the working medium flows through a turbine expansion/compressor 13 working in an expander state to do expansion work; because the clutch A14 is engaged, the turbine expansion/compressor 13 drives the generator A rotor shaft 512 to enable the generator A51 to generate electricity, the electricity is transported to the transformer box 53 and finally distributed to the user end 54; when the temperature of the working medium is reduced below the ambient temperature and passes through the storage Leng Huanre device 15, heat is driven by the cold storage working medium pump 44 and is transferred to the working medium from the cold storage tank 43, so that the refrigerating effect is realized, and the working medium is stored in the cold storage tank 43 in a cold mode; finally, the working medium is sent into a piston expansion/compressor for the next cycle; the charging process will continue when the wind is sufficient until the heat storage temperature sensor 411 and the cold storage temperature sensor 431 indicate that the charging is completed.
(3) In the energy release (power generation) process of the heat pump power storage system, as shown in fig. 2, fig. 5 and fig. 7, when the wind power in the region is weak, and the power consumption requirement of the user side is smaller than the generated energy of the heat pump power storage system S1 or the power generation of the diesel engine alone is insufficient to support, and the heat storage temperature sensor 411 and the cold storage temperature sensor 431 show that sufficient heat energy exists in the heat storage tank 41 and the cold storage tank 43, the heat pump power storage system S1 operates in the energy release mode to generate power. At this time, the clutch a14 is engaged with the clutch B16, the clutch C63 is disengaged with the clutch D17, the generator a synchronizer 513 is disengaged with the generator a rotor shaft gear 511, neither the sun wheel brake 625 nor the ring gear brake 624 is operated, and the planetary gear box 62 is not operated; the electric power is reversely input to the generator A51, and the generator A is operated in a motor mode at the moment to drive the turbine expansion/compressor 13 to operate in a compressor mode; the heat pump cycle working medium is compressed in the turbine expansion/compressor 13, enters the heat storage heat exchanger 12, absorbs heat from the heat storage tank 41 and becomes high-temperature and high-pressure gas; then, the engine enters a piston type expansion/compressor 11 working in an expansion machine mode, expansion works to drive a crankshaft 111 of the piston type expansion/compressor to rotate, and a clutch B16 is engaged to further drive a generator B to rotate so as to realize power generation, and electric power is transported to a transformer box 53 and finally distributed to a user end 54; after expansion of the working medium, the reservoir Leng Huanre is cooled by the "cold" from the cold storage tank 43; finally, the turbine expansion/compression 13 is sent to the next cycle until the heat storage temperature sensor 411 and the cold storage temperature sensor 431 indicate that there is insufficient heat energy in the heat storage tank 41 and the cold storage tank 43 to support the cycle.
(4) In the working process of the diesel engine generator set and the cooling system thereof, as shown in fig. 2, 9 and 10, when the user side needs to stably output large power for a long time, the diesel engine generator set works as the main power of the power generation of the invention, and the diesel engine generator set can singly generate power or jointly generate power with the heat pump power storage system S1 according to the display signals of the heat storage temperature sensor 411 and the cold storage temperature sensor 431, and the combined power generation is described in the description. At this time, the clutch a, the clutch B, the clutch C and the clutch D are all in a disengaged state, the generator a synchronizer 513 is disengaged from the generator a rotor shaft gear 511, the sun wheel brake 625 and the ring gear brake 624 are not operated, and the planetary gear box 62 is not operated; the diesel engine 31 is started to drive the generator B52 to generate electricity, the electricity is transported to the transformer box 53 and finally distributed to the user end 54; the tail gas of the diesel engine 31 is conveyed to the heat storage tank 41 through a pipeline, and the waste heat in the tail gas is transferred and stored in the heat storage tank 41; when the cold storage temperature sensor 431 shows that the temperature in the cold storage tank 43 meets the cooling requirement of the diesel engine cooling system, the three-way valve 32 controls the cooling liquid to flow through the cold storage cooling loop 321 to the cold storage tank 43 for cold storage cooling, and when the cold storage temperature sensor 431 shows that the temperature in the cold storage tank 43 is lower than the cooling requirement of the diesel engine cooling system, the three-way valve 32 controls the cooling liquid to flow through the conventional cooling loop 322 to the radiator and the cooling fan 33 for conventional cooling.
In addition, as long as the area is sufficiently illuminated, the solar concentrating system S2 starts to operate, and the concentrating and heat-storing working medium pump 22 drives the heat to be sent from the solar concentrating panel 21 to the heat-storing tank 41 and stored.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (8)
1. The distributed combined power generation system based on the heat pump electricity storage technology is characterized by comprising a heat pump electricity storage system (S1), a solar energy condensation system (S2), a diesel engine generator set and a cooling system (S3), a heat storage/cooling system (S4), a power system (S5) and a wind motor set (S6) thereof;
the heat storage heat exchanger (12) of the heat pump electricity storage system (S1) exchanges heat with the heat storage medium in the heat storage tank (41) of the heat storage/cooling system (S4), and the heat storage Leng Huanre device (15) of the heat pump electricity storage system (S1) exchanges heat with the heat storage medium in the heat storage tank (43) of the heat storage/cooling system (S4); the power coupling of the piston expansion/compressor (11) of the heat pump electricity storage system (S1), the generator B (52) of the electric power system (S5), the fan impeller (61) of the wind turbine generator (S6), the generator A (51) of the electric power system (S5) and the turbine expansion/compressor (13) of the heat pump electricity storage system (S1) is realized, and the coordinated operation and the switching of various operation modes are realized;
the solar concentrating system (S2) transmits and stores solar concentrating heat energy into the heat storage tank (41);
the diesel engine generator set and a diesel engine (31) crankshaft of a cooling system (S3) thereof are connected with a generator B (52) to realize power generation, and the cooling system of the diesel engine (31) is connected with two cooling loops and can be switched;
the heat pump electricity storage system (S1), the solar energy condensation system (S2), the diesel engine generator set and the cooling system (S3) exchange heat through the heat storage/cooling system (S4);
the generator A (51) and the generator B (52) of the power system (S5) are connected with the user side (54) through a transformer box (53) to realize power supply and demand matching;
the wind turbine generator (S6) converts wind energy by a fan impeller (61) and further couples power into a planetary gear box (62) through mechanical transmission.
2. A distributed combined power generation system based on heat pump electricity storage technology according to claim 1, characterized in that the heat pump electricity storage system (S1) is a subsystem for performing forward and reverse thermodynamic cycles, comprising a piston expansion/compressor (11), a heat storage heat exchanger (12), a turbine expansion/compressor (13), a clutch a (14), a storage Leng Huanre device (15), a clutch B (16) and a clutch D (17); the working medium is subjected to thermodynamic cycle in a loop formed by a piston type expansion/compressor (11), a heat storage heat exchanger (12), a turbine type expansion/compressor (13) and a cold storage heat exchanger (15); the piston type expansion/compression machine (11) is crank-link type machinery, one end of an air passage communicated with an air cylinder is connected with a storage Leng Huanre device (15), the other end of the air passage is connected with a heat storage heat exchanger (12), two ends of a crankshaft (111) of the piston type expansion/compression machine are respectively connected with a clutch B (16) and a clutch D (17), two ends of the heat storage heat exchanger (12) are respectively connected with the piston type expansion/compression machine (11) and the turbine type expansion/compression machine (13), and a working medium exchanges heat with a hot flow working medium in the heat storage/cooling system (S4); the turbine type expansion/compressor (13) is provided with two working medium inlets/outlets which are respectively connected with the heat storage heat exchanger (12) and the Leng Huanre storage device (15), two ends of the Leng Huanre storage device (15) are respectively connected with the turbine type expansion/compressor (13) and the piston type expansion/compressor (11), and the working medium exchanges heat with cold flow working medium in the heat storage/cold system (S4); two ends of the clutch A (14) are respectively connected with the turbine expansion/compressor (13) and the generator A (51) of the power system (S5); two ends of the clutch B (16) are respectively connected with the piston expansion/compressor (11) and the generator B (52) of the power system (S5); and two ends of the clutch D (17) are respectively connected with a planetary gear box (62) and a piston expansion/compressor (11) of the wind turbine generator (S6).
3. The distributed combined power generation system based on the heat pump electricity storage technology as claimed in claim 1, wherein the solar energy condensation system (S2) is a place for collecting and transferring solar condensation heat energy and comprises a solar energy condensation plate (21) and a condensation heat storage working medium pump (22), solar radiation is on the solar energy condensation plate (21), the temperature of the solar energy condensation plate (21) rises after absorbing the solar radiation, and heat is transferred into the working medium; the working medium is powered by a condensing and heat-storing working medium pump (22) connected in series in the working medium circulation loop, flows through a solar condensing plate (21) and stores heat in a heat storage tank (41) of the heat storage/cooling system (S4).
4. The distributed combined power generation system based on the heat pump electricity storage technology as claimed in claim 1, wherein the diesel generator set and a cooling system (S3) thereof are main power generation components, and comprise a diesel engine (31), two cooling liquid flow three-way valves (32), a radiator, a cooling fan (33) and a cooling liquid pump (34); the air inlet of the diesel engine (31) is natural air suction, and tail gas flows through a heat storage tank (41) of the heat storage/cooling system (S4) through a pipeline to store heat and then is discharged to the environment, and a crankshaft of the diesel engine (31) is connected with a generator B (52) of the electric power system (S5); a cooling liquid pump (34) and a diesel engine (31) body are arranged on one branch between two cooling liquid flow-direction three-way valves (32), the second branch is a conventional cooling loop (322), and the third branch is a cold storage cooling loop (321) exchanging heat with a cold storage tank (43); a radiator and a cooling fan (33) are connected in series on the conventional cooling loop (322); the coolant pump (34) is driven by an external diesel front end pulley via a belt drive connection.
5. A distributed combined power generation system based on heat pump electricity storage technology as claimed in claim 1, characterized in that said heat storage/cold system (S4) comprises a heat storage tank (41), a heat storage working medium pump (42), a cold storage tank (43) and a cold storage working medium pump (44); the heat storage tank (41) is internally provided with a heat storage temperature sensor (411), and a heat flow working medium of the solar energy condensation system (S2), diesel engine tail gas of the diesel engine generator set and a cooling system (S3) thereof and a heat storage working medium of the heat storage/cooling system (S4) flow through the heat storage tank (41) and exchange heat; the heat storage working medium pump (42) is connected in series in the heat storage loop, the upstream is connected with the heat storage heat exchanger (12) of the heat pump electricity storage system (S1), and the downstream is connected with the heat storage tank (41); a cold storage temperature sensor (431) is arranged in the cold storage tank (43), and heat exchange is carried out between the cold storage tank Leng Gongzhi and cooling liquid of the diesel generator set and the cooling system (S3); the storage Leng Gongzhi pump (44) is connected in series in the cold storage loop, the upstream is connected with the storage Leng Huanre device (15) of the heat pump electricity storage system (S1), and the downstream is connected with the cold storage tank (43).
6. A distributed combined power generation system based on heat pump electricity storage technology as claimed in claim 1, characterized in that said power system (S5) comprises generator a (51), generator B (52), transformer box (53), generator a rotor shaft gear (511), generator a rotor shaft (512), generator a synchronizer (513);
the rotor shaft (512) of the generator A is directly connected with the clutch A (14) of the heat pump electricity storage system (S1) and is connected with the rotor shaft gear (511) of the generator A through the synchronizer (513) of the generator A; both ends of a rotor of the generator B (52) can be driven by a rotation input part, one end of the rotor is connected with a clutch B (16) of the heat pump electricity storage system (S1), and the other end of the rotor is connected with a crankshaft of a diesel engine (31) of the diesel engine generator set and a cooling system (S3) of the diesel engine generator set; the input end of the transformer box (53) is connected with the generator A (51) and the generator B (52) through electric power, and the output end of the transformer box is connected with the user end (54); the generator A rotor shaft gear (511) is sleeved on the generator A rotor shaft (512) in an empty mode, can be connected with the generator A rotor shaft (512) through a generator A synchronizer (513), and is meshed with the outside of a planetary gear box (62) gear ring (622) of the wind turbine generator set (S6); the generator A rotor shaft (512) is an extension shaft of a generator A (51) rotor outside the motor, a generator A rotor shaft gear (511) is sleeved on the generator A rotor shaft (512) in an empty mode, the generator A rotor shaft is connected with the shaft through a generator A synchronizer (513) on the shaft, and the other end of the generator A rotor shaft (512) is connected with a clutch A (14) of the heat pump electricity storage system (S1); the generator A synchronizer (513) is rigidly connected to the generator A rotor shaft (512) and may be connected to the generator A rotor shaft gear (511) as desired.
7. A distributed combined power generation system based on heat pump electricity storage technology according to claim 1, characterized in that the wind power generation set (S6) comprises a fan impeller (61), a planetary gearbox (62) and a clutch C (63); the fan impeller (61) is connected with one end of the clutch C (63) through mechanical transmission; one end of the clutch C (63) is mechanically connected with the fan impeller (61), and the other end of the clutch C is connected with the planetary gear box (62); the planetary gear box (62) is a coupling component of the wind turbine (S6) and the heat pump electricity storage system (S1), and a planet carrier (621), a gear ring (622), a sun gear (623), a gear ring brake (624) and a sun gear brake (625) are arranged in the planetary gear box (62); the planet carrier (621) is connected with the clutch C (63), the sun gear (623) is connected with one end of the clutch D (17) of the heat pump electricity storage system (S1), the gear ring (622) is meshed with the rotor shaft gear (511) of the generator A of the electric power system (S5) outside, the gear ring brake (624) can be contacted with and fixed to the rotating shaft of the gear ring (622), and the sun gear brake (625) can be contacted with and fixed to the sun gear (623).
8. A distributed combined power generation method based on heat pump electricity storage technology of the system of claim 1, characterized in that:
when the wind power in the region is strong enough to drive the fan to generate power and the power consumption requirement of the user side is not higher than that of the wind turbine generator set (S6), the wind turbine generator set (S6) independently generates power;
when the energy supply of the wind turbine generator system (S6) is higher than the electricity demand of the user side, wind power drives the heat pump electricity storage system to reversely circulate to charge energy;
when the wind power generation is lower than the requirement of a user side, the diesel generator set and the heat pump electricity storage system (S1) generate electricity singly or jointly;
the heat pump electricity storage system (S1) only operates in an energy release mode to generate electricity when the heat storage temperature sensor (411) and the cold storage temperature sensor (431) of the heat storage/cold system show that the heat storage tank (41) and the cold storage tank (43) have heat energy meeting corresponding requirements; the heat pump electricity storage system (S1) generates electricity independently only when the electricity consumption requirement of a user side is smaller than the electricity generation amount of the heat pump electricity storage system (S1);
during combined power generation, a piston expansion/compressor (11) of a heat pump power storage system (S1), a generator B (52) of a power system (S5), a fan impeller (61) of a wind turbine generator (S6), a generator A (51) of the power system (S5) and power of a turbine expansion/compressor (13) of the heat pump power storage system (S1) are coupled together, a diesel engine (31) crankshaft of the diesel engine generator and a cooling system (S3) of the diesel engine generator are connected with the generator B (52) to realize power generation, and the generator A (51) and the generator B (52) of the power system (S5) are connected with a user side (54) through a power transformation box (53) to realize power utilization supply and demand matching;
for the diesel engine cooling system, when the cold storage temperature sensor (431) shows that the temperature in the cold storage tank (43) meets the cooling requirement of the diesel engine cooling system, the cooling liquid flows to the three-way valve (32) to control the cooling liquid to flow through the cold storage cooling loop (321) to the cold storage tank (43) for cold storage and cooling, and when the cold storage temperature sensor (431) shows that the temperature in the cold storage tank (43) is lower than the cooling requirement of the diesel engine cooling system, the cooling liquid flows to the three-way valve (32) to control the cooling liquid to flow to the radiator and the cooling fan (33) through the regular cooling loop (322) for regular cooling.
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| CN111740412B (en) * | 2020-06-24 | 2021-10-01 | 东北电力大学 | Heat supply period abandoned wind eliminating method for combined operation of CSP power station containing heat storage and electric boiler |
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