CN108825318A - A kind of cryogenic fluid electricity generation system and dynamical system - Google Patents
A kind of cryogenic fluid electricity generation system and dynamical system Download PDFInfo
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- CN108825318A CN108825318A CN201811106208.6A CN201811106208A CN108825318A CN 108825318 A CN108825318 A CN 108825318A CN 201811106208 A CN201811106208 A CN 201811106208A CN 108825318 A CN108825318 A CN 108825318A
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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
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
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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
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
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Abstract
The embodiment of the present invention provides a kind of cryogenic fluid electricity generation system and dynamical system, belongs to technical field of power generation.The cryogenic fluid electricity generation system includes the cryogenic fluid memory being sequentially communicated, low temperature booster pump, main heat exchanger, cryogenic fluid steam turbine, the steam exhaust of cryogenic fluid steam turbine discharge, it is delivered directly to low temperature booster pump, steam exhaust is done work by cryogenic fluid steam turbine and is discharged, it is realized by the low temperature booster pump adherence pressure overcritical, it is again fed to main heat exchanger, low-temperature electricity-generating working medium is absorbed heat in main heat exchanger again, and it forms high pressure gas and is transported in cryogenic fluid steam turbine, drive the acting of cryogenic fluid steam turbine, so circulation, to efficiently avoid the waste of the latent heat energy of steam exhaust, since cryogenic fluid electricity generation system and dynamical system do not have cooling tower systems, not only efficiency is very high for the cryogenic fluid electricity generation system, opposite conventional power generation systems, the cryogenic fluid electricity generation system has the advantages that high efficiency and low cost simultaneously.
Description
Technical field
The present invention relates to technical field of power generation, in particular to a kind of cryogenic fluid electricity generation system and dynamical system.
Background technique
Traditional electricity generation system and afterheat generating system, most of is all using water as generating working medium, and water passes through water pump
It is pressed and delivered in waste heat boiler, gasification forms high steam after absorbing waste heat and industrial waste heat, then inputs Steam Turbine Driven
Steam turbine high speed rotation, and generator high speed rotation is driven to export electric energy.The steam exhaust of steam turbine discharge, passes through cooling tower and environment
In cold water or cold air heat exchange, the latent heat energy in steam exhaust is discharged, formed condensed water pass through again water pump be conveyed to it is remaining
Heat boiler is reheated as steam, and driving steam turbine simultaneously drives generator to export electric energy, and the steam exhaust of steam turbine discharge passes through again
In the cold air in cold water or environment that cooling tower can be discharged into environment the latent heat energy in steam exhaust, steam exhaust be condensed into water followed by
Continuous circulation, so continuous power generation output.
Use water as the generation technology of generating working medium and cogeneration can centering high-grade residual heat resources absorbed and sent out
Electricity, since useless residual heat resources are heat sources extra and free in industrial processes, while the waste heat of this environmental protection is sent out by country
Electric project is helped, so using relatively more in industrial market.
The disadvantage is that generating efficiency is low, and usually only 10% or so generating efficiency, the high-grade relatively high for temperature
Waste heat, also with regard to 20% or so, nearly 80~90% energy is released generating efficiency by cold water in environment and cold air, is caused
Huge waste, and thermal pollution also is formed to environment.
In the market in addition to using water, as generating working medium, there are also a kind of low temperature Organic Rankine Cycles to generate electricity, the power generation applications
Boiling temperature is about 15 DEG C or so of organic working medium, may be implemented to carry out cogeneration, the skill to 80 DEG C or more hot water and steam
Art is identical as the principle of generating working medium as using water, the steam exhaust of screw expander discharge, also using the cold water or cold in environment
Air realizes condensation.Working principle is identical as the generation technology of generating working medium as using water, substitutes vapour using screw expander
Turbine, simultaneously because Organic Rankine Cycle power generation uses boiling point for 15 DEG C or so of low boiling working fluid, therefore can to 80 DEG C with
On hot water and steam carry out cogeneration.
The advantage of the technology is can to generate electricity to 80 DEG C or so of low grade residual heat.The disadvantage is that needing using cooling tower
Steam exhaust latent heat treatment in the cold water and cold air into environment, is not only caused into thermal pollution, while also result in hair in the environment
Electrical efficiency is low, general only 10% or so generating efficiency, the highest also generating efficiency with regard to 20% or so, nearly 80~90% energy
Amount is by waste in vain and can be discharged into environment.Cogeneration technology simultaneously, using about 100,000 yuan of price per ton or so
Expensive organic working medium, therefore this cogeneration product not only low efficiency, while generating working medium is expensive.
Summary of the invention
The purpose of the present invention is to provide a kind of cryogenic fluid electricity generation system and dynamical systems, can improve above-mentioned ask
Topic.
What the embodiment of the present invention was realized in：
In a first aspect, the embodiment of the present invention provides a kind of cryogenic fluid electricity generation system, the cryogenic fluid electricity generation system packet
Include the cryogenic fluid memory being sequentially communicated, low temperature booster pump, main heat exchanger, cryogenic fluid steam turbine；The cryogenic fluid vapour
The steam exhaust of turbine discharge, the steam exhaust are the exhaust after the acting of cryogenic fluid steam turbine, connect and input the low temperature booster pump
Entrance, realized by the low temperature booster pump adherence pressure it is overcritical, then outside absorbing and obtaining by the main heat exchanger
Thermal energy.
Optionally, low-temperature electricity-generating working medium is placed in the cryogenic fluid memory, is pressurizeed by low temperature booster pump, and institute is made
It states low-temperature electricity-generating working medium to be transported in the main heat exchanger, the low-temperature electricity-generating working medium is absorbed heat in main heat exchanger forms high pressure gas
Body is transported in the cryogenic fluid steam turbine, and the cryogenic fluid steam turbine is connect with generator, the drive of high-pressure gas
The cryogenic fluid steam turbine acting, so that generator output electric energy and/or the cryogenic fluid Steam Turbine Driven are mechanical
Equipment, output mechanical energy.
Optionally, the main heat exchanger is set between the low temperature booster pump and the cryogenic fluid steam turbine, described
Main heat exchanger includes condenser, air heat exchanger, high-temperature flue gas heat exchanger, hot water waste liquid heat exchanger, device cooling system, remaining
Heat regenerator, boiler, any one or more combination in waste heat boiler.
Optionally, the cryogenic fluid electricity generation system further includes liquid coolant circulation, the liquid coolant circulation packet
Hot secondary refrigerant liquid pipeline, refrigerating medium circulating pump, the main heat exchanger, low temperature coolant ducts and equipment to be cooled are included, it is external
The hot secondary refrigerant liquid that equipment generates is delivered to the hot secondary refrigerant liquid pipeline, is pressurizeed by the refrigerating medium circulating pump, defeated
It is sent to the main heat exchanger to exchange heat, so that the hot secondary refrigerant liquid loses thermal energy, forms the cryogenic liquid of refrigerating medium, into
Enter the low temperature coolant ducts, the equipment to be cooled is conveyed to by valve, heat is formed after the refrigerating medium heat absorption of low temperature and carries
Cryogen returns to the hot secondary refrigerant liquid pipeline；
The liquid coolant circulation is device cooling system, air-conditioning system, gas liquid cooling system, condenser, heat
Aqueous waste solution heat exchanger system, is arranged in the low-temperature end of the main heat exchanger, and the temperature end of the main heat exchanger is high-temperature flue gas heat
Exchanger, waste-heat recoverer, boiler, waste heat boiler, output connect the cryogenic fluid steam turbine.
Optionally, the cryogenic fluid electricity generation system further includes gas cooling circulation, gas cooling circulation include according to
Gas pipeline entrance, Fan Equipment, the main heat exchanger, the cryogenic gas pipe outlet of secondary connection.
Optionally, the cryogenic fluid electricity generation system further includes exhaust pressure adjusting device and protective device, the exhaust
Pressure-regulating device and the protective device are connect with the cryogenic fluid steam turbine, for limiting the cryogenic fluid steam turbine
Pressure at expulsion, be also equipped with the exhaust pressure adjusting device between the cryogenic fluid steam turbine and the low temperature booster pump
With the protective device.
Optionally, the low-temperature steam exhaust that the cryogenic fluid steam turbine generates enters the low temperature booster pump, by described
After low temperature booster pump adherence pressure, it is again fed to the main heat exchanger, the low-temperature electricity-generating working medium is again in the main heat exchange
It absorbs heat in device, and forms high pressure gas and be transported in the cryogenic fluid steam turbine, the cryogenic fluid steam turbine is driven to do work.
Optionally, the low-temperature electricity-generating working medium stored in the cryogenic fluid memory be natural gas, methane, ethane, air,
Oxygen, nitrogen, argon gas, hydrogen, helium, common simple gases, hydrocarbon gas substance, gas refrigerant pure substance, gas refrigeration
Any one or more combination in agent composition, other gas organic matters or other mixed gas.
Optionally, the cryogenic fluid memory, the low temperature booster pump, the main heat exchanger, the cryogenic fluid vapour
Turbine and its connecting pipe of interconnection are equipped with insulating layer.
Second aspect, the embodiment of the present invention provide a kind of dynamical system, including cryogenic fluid described in above-mentioned first aspect
Electricity generation system.
The beneficial effect of the embodiment of the present invention is：
The embodiment of the present invention provides a kind of cryogenic fluid electricity generation system and dynamical system, the cryogenic fluid electricity generation system include
Cryogenic fluid memory, low temperature booster pump, main heat exchanger, the cryogenic fluid steam turbine being sequentially communicated.In the present solution, can will be low
The steam exhaust of warm working medium steam turbine discharge is delivered directly to low temperature booster pump, and the steam exhaust is done work by cryogenic fluid steam turbine and is discharged,
It is overcritical by low temperature booster pump adherence pressure realization, it is again fed to main heat exchanger, the low-temperature electricity-generating working medium is again
It absorbs heat in main heat exchanger, and forms high pressure gas and be transported in the cryogenic fluid steam turbine, drive the cryogenic fluid vapour
Turbine acting, so recycles, to efficiently avoid the waste of the latent heat energy of steam exhaust, traditional thermal power generation, biomass fermentation
Electricity, afterheat generating system, cooling tower systems account for about the one third of totle drilling cost, while the cooling tower systems are also lost largely
Energy, since cryogenic fluid electricity generation system and dynamical system do not have cooling tower systems, the cryogenic fluid electricity generation system not only efficiency
Very high, opposite conventional power generation systems, Construction of Low Cost is also low, therefore the cryogenic fluid electricity generation system has high efficiency and low simultaneously
The advantages of cost.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of structural schematic diagram of cryogenic fluid electricity generation system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another cryogenic fluid electricity generation system provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of liquid coolant circulation provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of gas cooling circulation provided in an embodiment of the present invention.
Icon：100- cryogenic fluid electricity generation system；111- cryogenic fluid memory；112- low temperature booster pump；113- master changes
Hot device；114- cryogenic fluid steam turbine；130- generator；140- liquid coolant circulation；The hot secondary refrigerant liquid pipeline of 141-；
142- refrigerating medium circulating pump；143- low temperature coolant ducts；144- equipment to be cooled；150- gas cooling circulation；151- gas
Entrance；152- Fan Equipment；153- cryogenic gas pipe outlet.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Other features and advantages of the present invention will be illustrated in subsequent specification, also, partly be become from specification
It is clear that being understood by implementing the embodiment of the present invention.The objectives and other advantages of the invention can be by written
Specifically noted structure is achieved and obtained in specification, claims and attached drawing.
Fig. 1 is please referred to, Fig. 1 is a kind of structural schematic diagram of cryogenic fluid electricity generation system 100 provided in an embodiment of the present invention,
The cryogenic fluid electricity generation system 100 includes cryogenic fluid memory 111, the low temperature booster pump 112, main heat exchanger being sequentially communicated
113, cryogenic fluid steam turbine 114.
Wherein, the cryogenic fluid memory 111, for storing low-temperature electricity-generating working medium, low-temperature electricity-generating working medium is for absorbing heat
High temperature and high pressure gas driving cryogenic fluid steam turbine 114 is formed afterwards to rotate.
It should be noted that cryogenic fluid electricity generation system 100 provided in this embodiment, is applicable to recycle existing chemical industry
Factory, building materials, cement, papermaking, printing and dyeing, weaving, sugar industry, food, the wine industry, pharmaceutical factory cooling water and refrigeration system in low-quality heat
Can waste heat and the washing slag water of steel rolling mill, the underground water of oil well, platoon water, steel-making, ironmaking, coke oven waste heat, there are also Boiler Furnaces
Body cooling water heat, boiler smoke, diesel engine vent gas, the waste heat of gas turbine exhaust gas, suitable for using air or seawater
A large amount of thermal energy contained etc..
Wherein, low-temperature electricity-generating working medium is placed in the cryogenic fluid memory 111, is pressurizeed by low temperature booster pump 112
After realize supercritical pressure, be then delivered in the main heat exchanger 113, the low-temperature electricity-generating working medium is in main heat exchanger 113
Heat absorption forms high pressure gas, is transported in the cryogenic fluid steam turbine 114, the cryogenic fluid steam turbine 114 and generator
130 connect, and cryogenic fluid steam turbine 114 described in the drive of high-pressure gas does work, so that the generator 130 exports electric energy
And/or the cryogenic fluid steam turbine 114 drives mechanical equipment, output mechanical energy.
Or high pressure gas is formed after the absorption of main heat exchanger 113 external heat, it is delivered to the cryogenic fluid steamer
In machine 114, the cryogenic fluid steam turbine 114 is connect with generator 130, cryogenic fluid steamer described in the drive of high-pressure gas
Machine 114 does work, so that the generator 130 exports electric energy and/or the cryogenic fluid steam turbine 114 drives mechanical equipment, it is defeated
Mechanical energy out.
The low-temperature electricity-generating working medium stored in the cryogenic fluid memory 111 is natural gas, methane, ethane, air, oxygen
Gas, nitrogen, argon gas, hydrogen, helium, common simple gases, hydrocarbon gas substance, gas refrigerant pure substance, gas refrigerant
Any one or more combination in mixture, other gas organic matters or other mixed gas.
The main heat exchanger 113 is set between the low temperature booster pump 112 and the cryogenic fluid steam turbine 114, institute
Stating main heat exchanger 113 includes condenser, air heat exchanger, high-temperature flue gas heat exchanger, hot water waste liquid heat exchanger, equipment cooling system
System, waste-heat recoverer, boiler, any one or more combination in waste heat boiler.
Condenser carries out steam exhaust condensation for temperature of power plant steam turbine, and air heat exchanger includes steel plant, coke-oven plant, heating furnace
Etc. high temperature heated air source, for absorbing flue high temperature waste heat, hot water waste liquid heat exchanger is used for high-temperature flue gas heat exchanger
Absorb industrial hot water or high-temp liquid waste heat etc..
Each equipment in above-mentioned heat exchanger can also be plurality of devices, can be with serial or parallel connection between plurality of devices.
Optionally, when main heat exchanger 113 includes air seawater heat exchanger, air seawater heat exchanger is provided with out frost dress
It sets and fan assembly, defrosting device can provide heat to the shell of air seawater heat exchanger, fan assembly is for flowing through
The seawater or air of air seawater heat exchanger accelerate.By defrosting device, so that there are frosts on air seawater heat exchanger
When, it can quickly remove.For example, the shell of air seawater heat exchanger is provided with defrosting device, alternatively, air seawater heat exchanger
Be internally provided with defrosting device, alternatively, the gas position of air seawater heat exchanger is provided with defrosting device.Preferably,
Defrosting device includes electric heating wire, it is preferable that air seawater heat exchanger has multiple fins etc. structure, to provide air sea
The heat exchange efficiency of water- to-water heat exchanger.By fan assembly, can force, air or seawater accelerate and increment is changed by air seawater
Hot device, to provide the heat exchange efficiency of air seawater heat exchanger.Optionally, the quantity of fan assembly is a set of or more sets.
The cryogenic fluid steam turbine 114 is low temperature resistant material, meets the Special turbine of cryogenic fluid characteristic.
The cryogenic fluid steam turbine 114 may be replaced by the expanding machine and pneumatic motor prime movers of low temperature material.
The low-temperature steam exhaust that the cryogenic fluid steam turbine 114 generates directly is defeated by the low temperature booster pump 112, the low temperature
The low-temperature steam exhaust adherence pressure that the cryogenic fluid steam turbine 114 is discharged booster pump 112 is transported to described to overcritical
External heat is reacquired in main heat exchanger 113, and is gasified and formed high pressure, cryogenic fluid steamer described in the drive of high-pressure gas
114 high speed rotation of machine and the drive power generation of generator 130 and/or the cryogenic fluid steam turbine 114 drive mechanical equipment,
Output mechanical energy.The low-temperature steam exhaust that the cryogenic fluid steam turbine 114 is discharged is about critical pressure and/or overcritical pressure
Power is input in the main heat exchanger 113 and reacquires by 112 adherence pressure of low temperature booster pump to overcritical
External heat, so continuous circulation.The cryogenic fluid memory 111, effect are storage cryogenic fluids, while to low temperature
The cryogenic fluid that working medium electricity generation system 100 leaks is supplemented, while weary to the low temperature of the acting discharge of cryogenic fluid steam turbine 114
Vapour is transported to the buffering of formation temperature, pressure and flow between the low temperature booster pump 112；
The cryogenic fluid memory 111, low temperature booster pump 112, main heat exchanger 113, cryogenic fluid steam turbine 114 and its
The connecting pipe of interconnection is equipped with insulating layer or vacuum heat-insulation, or other adiabatic heat-insulation technologies.
The cryogenic fluid memory 111, the low temperature booster pump 112, the main heat exchanger 113, the cryogenic fluid
Steam turbine 114 and the pipeline between them, are pressure-resistant equipment, are equipped with pressure detecting and pressure regulating system.
As an implementation, the cryogenic fluid electricity generation system 100 further includes exhaust pressure adjusting device and protection
Device, the exhaust pressure adjusting device and the protective device are connect with the cryogenic fluid steam turbine 114, for controlling
The pressure at expulsion of cryogenic fluid steam turbine 114 is stated, between the cryogenic fluid steam turbine 114 and the low temperature booster pump 112
It is provided with the exhaust pressure adjusting device and the protective device.
Wherein, between the cryogenic fluid steam turbine 114 and the low temperature booster pump 112, it is additionally provided with cryogenic fluid storage
Device 111, the cryogenic fluid memory 111 for storing low-temperature electricity-generating working medium, and to the cryogenic fluid electricity generation system 100 into
The supplement of row low-temperature electricity-generating working medium, 111 exit and entry of cryogenic fluid memory are equipped with valve.
As an implementation, referring to figure 2. and Fig. 3, the cryogenic fluid electricity generation system 100 further include liquid refrigerating
Agent circulation 140, the liquid coolant circulation 140 includes hot secondary refrigerant liquid pipeline 141, refrigerating medium circulating pump 142, the master
Heat exchanger 113, low temperature coolant ducts 143 and equipment to be cooled 144, the hot secondary refrigerant liquid that external equipment generates are delivered to institute
Hot secondary refrigerant liquid pipeline 141 is stated, is pressurizeed by the refrigerating medium circulating pump 142, is transported to the main heat exchanger 113 and is changed
Heat forms the cryogenic liquid of refrigerating medium so that the hot secondary refrigerant liquid loses thermal energy, into the low temperature coolant ducts
143, the equipment to be cooled 144 is conveyed to by valve, hot refrigerating medium is formed after the refrigerating medium heat absorption of the low temperature and returns to institute
State hot secondary refrigerant liquid pipeline 141.
Liquid coolant circulation 140 is device cooling system, air-conditioning system, gas liquid cooling system, condenser,
Hot water waste liquid heat exchanger system, is arranged in the low-temperature end of the main heat exchanger 113, and the temperature end of the main heat exchanger 113 is height
Warm flue gas heat exchanger, waste-heat recoverer, boiler, waste heat boiler, output connect the cryogenic fluid steam turbine 114.
Wherein, the hot secondary refrigerant liquid includes but is not limited to have water, salt water, ethylene glycol or propylene glycol solution, dichloromethane
Alkane and trichloroethanes etc..
As an implementation, referring to figure 4., the cryogenic fluid electricity generation system 100 further includes gas cooling circulation
150, gas cooling circulation 150 is set between main heat exchanger 113 and low temperature booster pump 112, alternative above-mentioned liquid refrigerating
Agent circulation 140, the gas cooling circulation 150 includes the gas pipeline entrance 151 being sequentially communicated, Fan Equipment 152, the master
Heat exchanger 113, cryogenic gas pipe outlet 153.
Wherein, the hot-air of gas pipeline entrance 151 through the pressurization of Fan Equipment 152, is transported to the main heat exchanger 113
Reduce temperature, formation low temperature cold air be transported in the air duct of air-conditioning system by cryogenic gas pipe outlet 153, it is defeated
It send cold air by the air duct, is transported to each room, to realize that the air in room updates and realize the system of space air
It is cold；The thermal energy of the hot-air is absorbed by the low-temperature electricity-generating working medium (such as liquid nitrogen) in the main heat exchanger 113, and gasify shape
At high pressure gas, drives 114 high speed rotation of cryogenic fluid steam turbine and the generator 130 is driven to generate electricity, come absorbing
The thermal energy switch to power output.
It in the embodiment of the present invention, is generated electricity (such as liquid air, liquid nitrogen) using cryogenic fluid, low temperature liquid nitrogen is increased by low temperature
Press pump 112 pressurizes to cryogenic fluid, and input heat exchanger exchanges heat with heat source, since cryogenic fluid boiling point is extremely low, even if temperature
For 10 DEG C or so of water and air, the low temperature liquid nitrogen generating working medium can be allowed to gasify to form high pressure gas, drive cryogenic fluid
114 high speed rotation of steam turbine and drive generator 130 generate electricity, by the thermal energy of absorption switch to kinetic energy and power generation export, discharge it is weary
Vapour is directly defeated by the low temperature booster pump 112 and pressurizes, and the cryogenic fluid steam turbine 114 is discharged the low temperature booster pump 112
The low-temperature steam exhaust adherence pressure to overcritical, be transported in the main heat exchanger 113 and reacquire external heat, and gasify
High pressure is formed, 114 high speed rotation of cryogenic fluid steam turbine described in the drive of high-pressure gas and the drive generator 130 are sent out
Electricity and/or the cryogenic fluid steam turbine 114 drive mechanical equipment, output mechanical energy, so continuous circulation.
The technology uses 0 degree Celsius of boiling temperature low boiling point low-temperature electricity-generating working medium below, the extremely low liquid nitrogen such as temperature, boiling
Point temperature is subzero -196 DEG C, is pressurized in heat exchanger by low temperature booster pump 112, is exchanged heat with hot water and hot gas, is absorbed heat rapidly
Gasification forms high pressure, the driving power generation output electric energy of cryogenic fluid steam turbine 114.The cryogenic fluid electricity generation system 100 is Celsius using 0
Low boiling point low-temperature electricity-generating working medium below is spent, heat absorption and power generation, 114 row of cryogenic fluid steam turbine can be can be carried out to low-grade heat
Steam exhaust out is directly defeated by the low temperature booster pump 112 and pressurizes, and the low temperature booster pump 112 is by the cryogenic fluid steam turbine
The low-temperature steam exhaust adherence pressures of 114 discharges to overcritical, be transported in the main heat exchanger 113 reacquire it is external hot
Can, energy is not discharged into environment, also without cooling tower systems, therefore 100 generating efficiency of cryogenic fluid electricity generation system
It is very high, it is an efficient energy-saving and environment-friendly electricity generation system and dynamical system.
In addition, the embodiment of the present invention also provides a kind of dynamical system, including above-mentioned cryogenic fluid electricity generation system 100.
Rankine cycle refers to a kind of Ideal Cycle process using vapor as working medium, is used for steam unit power cycle.
It mainly include isentropic Compression, isobaric heating, constant entropy expansion, isobaric condensation.Mainly by water pump, boiler, steam turbine and condenser four
A main device is constituted；Brayton cycle is the circulation using gas as working medium, by compressor isentropic Compression, burner etc.
Pressure heating, the constant entropy expansion of turbine and the isobaric heat extraction Four processes for leading to atmosphere；Cryogenic fluid electricity generation system 100 and dynamical system
System, only three isobaric heat absorption of gas working medium, constant entropy expansion and isentropic Compression processes, without isobaric cooling or isobaric condensation
Process does not have energy loss process, therefore the thermal efficiency of the cryogenic fluid electricity generation system 100 and dynamical system is very high.
In conclusion the embodiment of the present invention provides a kind of cryogenic fluid electricity generation system and dynamical system, cryogenic fluid hair
Electric system includes the cryogenic fluid memory being sequentially communicated, low temperature booster pump, main heat exchanger, cryogenic fluid steam turbine.This programme
In, the steam exhaust that cryogenic fluid steam turbine can be discharged is delivered directly to low temperature booster pump, and the steam exhaust is by cryogenic fluid steamer
Machine acting discharge, it is overcritical by low temperature booster pump adherence pressure realization, it is again fed to main heat exchanger, the low temperature hair
Electrician's matter is absorbed heat in main heat exchanger again, and is formed high pressure gas and be transported in the cryogenic fluid steam turbine, described in driving
The acting of cryogenic fluid steam turbine, so recycles, so that the waste of the latent heat energy of steam exhaust is efficiently avoided, traditional firepower hair
Electricity, biomass power generation, afterheat generating system, cooling tower systems account for about the one third of totle drilling cost, while the cooling tower systems
It is also lost a large amount of energy, since cryogenic fluid electricity generation system and dynamical system do not have cooling tower systems, cryogenic fluid power generation
Not only efficiency is very high for system, and opposite conventional power generation systems, Construction of Low Cost is also low, therefore the cryogenic fluid electricity generation system has simultaneously
There are high efficiency and low cost.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of cryogenic fluid electricity generation system, which is characterized in that the cryogenic fluid electricity generation system includes the low temperature being sequentially communicated
Working medium memory, low temperature booster pump, main heat exchanger, cryogenic fluid steam turbine.
2. cryogenic fluid electricity generation system according to claim 1, which is characterized in that low-temperature electricity-generating working medium is placed in described low
It in warm working medium memory, is pressurizeed by low temperature booster pump, is transported to the low-temperature electricity-generating working medium in the main heat exchanger, it is described
Low-temperature electricity-generating working medium is absorbed heat in main heat exchanger forms high pressure gas, is transported in the cryogenic fluid steam turbine, the low temperature
Working medium steam turbine is connect with generator, the acting of cryogenic fluid steam turbine described in the drive of high-pressure gas, so that the generator
Export electric energy and/or the cryogenic fluid Steam Turbine Driven mechanical equipment, output mechanical energy.
3. cryogenic fluid electricity generation system according to claim 1, which is characterized in that the main heat exchanger is set to described low
Between warm booster pump and the cryogenic fluid steam turbine, the main heat exchanger includes condenser, air heat exchanger, high-temperature flue gas heat
Exchanger, hot water waste liquid heat exchanger, device cooling system, waste-heat recoverer, boiler, any one or more in waste heat boiler
Combination.
4. cryogenic fluid electricity generation system according to claim 3, which is characterized in that the cryogenic fluid electricity generation system is also wrapped
Liquid coolant circulation is included, the liquid coolant circulation is changed including hot secondary refrigerant liquid pipeline, refrigerating medium circulating pump, the master
Hot device, low temperature coolant ducts and equipment to be cooled, the hot secondary refrigerant liquid that external equipment generates are delivered to the hot refrigerating medium
Fluid pipeline is pressurizeed by the refrigerating medium circulating pump, is transported to the main heat exchanger and is exchanged heat, so that the hot refrigerating medium
Liquid loses thermal energy, forms the cryogenic liquid of refrigerating medium, into the low temperature coolant ducts, by valve be conveyed to it is described to
Cooling equipment forms hot refrigerating medium after the refrigerating medium heat absorption of low temperature and returns to the hot secondary refrigerant liquid pipeline；
The liquid coolant circulation is device cooling system, air-conditioning system, gas liquid cooling system, condenser, hot water are useless
Liquid heat exchanger system, is arranged in the low-temperature end of the main heat exchanger, and the temperature end of the main heat exchanger is high-temperature flue gas heat exchange
Device, waste-heat recoverer, boiler, waste heat boiler, output connect the cryogenic fluid steam turbine.
5. cryogenic fluid electricity generation system according to claim 3, which is characterized in that the cryogenic fluid electricity generation system is also wrapped
Gas cooling circulation is included, the gas cooling circulation includes gas pipeline entrance, Fan Equipment, the main heat exchange being sequentially communicated
Device, cryogenic gas pipe outlet.
6. cryogenic fluid electricity generation system according to claim 1, which is characterized in that the cryogenic fluid electricity generation system is also wrapped
Include exhaust pressure adjusting device and protective device, the exhaust pressure adjusting device and the protective device and the cryogenic fluid
Steam turbine connection, for controlling the pressure at expulsion of the cryogenic fluid steam turbine, the cryogenic fluid steam turbine and the low temperature
The exhaust pressure adjusting device and the protective device are also equipped between booster pump.
7. cryogenic fluid electricity generation system according to claim 6, which is characterized in that the cryogenic fluid steam turbine generated
Low-temperature steam exhaust enters the low temperature booster pump, after the low temperature booster pump adherence pressure, is again fed to the master and changes
Hot device, the low-temperature electricity-generating working medium are absorbed heat in the main heat exchanger again, and are formed high pressure gas and be transported to the low temperature work
In matter steam turbine, the cryogenic fluid steam turbine is driven to do work.
8. cryogenic fluid electricity generation system according to claim 1-7, which is characterized in that the cryogenic fluid storage
The low-temperature electricity-generating working medium stored in device is natural gas, methane, ethane, air, oxygen, nitrogen, argon gas, hydrogen, helium, common letter
Single gas, hydrocarbon gas substance, gas refrigerant pure substance, gas refrigeration agent composition, other gas organic matters or other are mixed
Close any one or more combination in gas.
9. cryogenic fluid electricity generation system according to claim 1, which is characterized in that the cryogenic fluid memory, described
Low temperature booster pump, the main heat exchanger, the cryogenic fluid steam turbine and its connecting pipe of interconnection are equipped with insulating layer.
10. a kind of dynamical system, which is characterized in that including any cryogenic fluid electricity generation system of claim 1-9.
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| CN201811106208.6A CN108825318A (en) | 2018-09-20 | 2018-09-20 | A kind of cryogenic fluid electricity generation system and dynamical system |
| PCT/CN2019/105428 WO2020052600A1 (en) | 2018-09-11 | 2019-09-11 | Low temperature working medium power generating system and power system |
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| CN201811106208.6A CN108825318A (en) | 2018-09-20 | 2018-09-20 | A kind of cryogenic fluid electricity generation system and dynamical system |
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