CN109386326A - A kind of condensation of gas and cryogenic fluid electricity generation system and technique - Google Patents
A kind of condensation of gas and cryogenic fluid electricity generation system and technique Download PDFInfo
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- CN109386326A CN109386326A CN201811423292.4A CN201811423292A CN109386326A CN 109386326 A CN109386326 A CN 109386326A CN 201811423292 A CN201811423292 A CN 201811423292A CN 109386326 A CN109386326 A CN 109386326A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
-
- 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
- F01K19/00—Regenerating or otherwise treating steam exhausted from steam engine plant
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
- F01K25/106—Ammonia
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention provides a kind of condensation of gas and low-temperature generating system and techniques, it is related to gas-condensate liquid and low-temperature electricity-generating technical field, including cryogenic fluid memory, cryogenic liquid pump, steam exhaust regenerator, main heat exchanger, cryogenic fluid steam turbine and the steam exhaust regenerator being sequentially communicated；Ice chest equipment is made of main heat exchanger and insulated case.Cryogenic liquid absorbs latent heat and sensible heat forms gas at normal temperature, with the liquid of lower boiling, removes the latent heat and sensible heat that absorb gas, lower than the condensation temperature of gas, which will be condensed into liquid；More low-temperature electricity-generating working medium absorbs the gas thermal energy and gasifies to form high drive cryogenic fluid steam turbine power generation simultaneously, script is passed through into compressor compresses and the thermal energy discharged, high drive steam turbine is formed with more low-temperature electricity-generating working medium endothermic gasification or expanding machine generates electricity, the latent heat and sensible heat contained using gas to be condensed are generated electricity, and are achieved many things at one stroke.
Description
Technical field
The present invention relates to gas-condensate liquid fields, more particularly, to a kind of gas-condensate liquid and cryogenic fluid power generation system
System and gas liquefaction electricity generation system and technique.
Background technique
The liquefaction of traditional natural gas, ethylene, air: two methods are generally condensed and compressed using multi-stage heat pump.
1, it condenses: being that the heat energy pump in natural gas in water cooler into environment, is passed through by environment by multi-stage heat pump
In water (or air) energy in natural gas is discharged, compare typical method have Cascade, mixing system
Cryogen liquefaction flow path.
The liquefaction of natural gas, ethylene is realized using this method, main energy consumption equipment is the compressor apparatus of heat pump system, by
Huge in the condensation scale of construction of natural gas, ethylene, this heat pump compressor is all extremely huge compressor apparatus, therefore consumes electricity
It can be also extremely huge.Every set heat pump system remove huge energy consumption compressor, at least also to have evaporator, condenser, expansion valve or
The equipment such as person's expanding machine, a set of liquefaction device need more set heat pumps, also to there is water cooling system.
2, it compresses: being to be compressed the gases such as air to be condensed, natural gas, ethylene by large-scale compression machine equipment,
The thermal energy of generation passes through the cooling tower in the heat exchange equipments and environment such as precool heat exchanger device again, and the thermal energy of generation is discharged into environment
In.For compressed gas scheme since the scale of construction of gas to be condensed is huge, the energy consumption of compressor apparatus is also extremely huge.
Existing traditional gas condensation equipment used device is more, and cost is big, and the electricity charge that large-scale compressor consumes every year are even more
It is huge.Applicant explored by more than 20 years pains, found the technology and methods for solving these problems finally.
The information disclosed in the background technology section is intended only to deepen the understanding to general background technology of the present invention, without
It should be considered as recognizing or implying in any form that the information constitutes the prior art known in those skilled in the art.
Summary of the invention
The purpose of the present invention is to provide a kind of condensations of gas and cryogenic fluid electricity generation system and gas liquefaction electricity generation system
And technique, to solve the technical issues of large-scale compressor present in existing technology consumes huge electric energy every year.
Gas condensation provided by the invention and cryogenic fluid electricity generation system and technique, including low-temperature generation device and steam exhaust are returned
Receiving apparatus；The low-temperature generation device is connected to form closed loop with the steam exhaust recovering device head and the tail；The low-temperature generation device packet
The cryogenic liquid pump being sequentially communicated, main heat exchanger, cryogenic fluid steam turbine or expanding machine are included, the steam exhaust recovering device includes weary
Vapour regenerator.
Further, the low-temperature generation device further includes ice chest equipment, and the ice chest equipment is by low-temperature generation device
Main heat exchanger and package are set in the insulated case outside the main heat exchanger and constitute；Gas is provided on the insulated case to enter
Mouth and condensed fluid outlet.
Further, the power generator further includes the cryogenic pipe of cryogenic fluid memory and steam exhaust regenerator；It is described
The cryogenic pipe of steam exhaust regenerator is arranged between cryogenic liquid pump and the main heat exchange；The cryogenic fluid memory, low temperature
Liquid pump, the cryogenic pipe of steam exhaust regenerator, the main heat exchanger of ice chest equipment, cryogenic fluid steam turbine or expanding machine successively connect
It is logical.
Further, the steam exhaust recovering device further include power generator the cryogenic fluid steam turbine or expanding machine,
The high temperature conduit of steam exhaust regenerator and the cryogenic fluid memory；
The cryogenic fluid steam turbine or expanding machine, the high temperature conduit of the steam exhaust regenerator, cryogenic fluid storage
Device is sequentially communicated.
Further, the cryogenic fluid steam turbine or the steam exhaust temperature of expanding machine output, are the stagnation temperature of steam exhaust meson
Degree or supercritical temperature.
Further, the steam exhaust recovering device is additionally provided with cryogenic fluid cooling device, the working medium cooling device packet
Include the cryogenic fluid memory being sequentially communicated, compressor, compression condensation device, reducing pressure by regulating flow device；The reducing pressure by regulating flow device
Outlet connects the cryogenic fluid memory, and compression condensation liquid is enabled to return to the cryogenic fluid memory, forms closed loop；
The external heat release of compression condensation device is located between the steam exhaust regenerator and main heat exchanger or is located at steam exhaust and returns
In hot device；Or heat is discharged between the steam exhaust regenerator and main heat exchanger by hot pump in low temp；The reducing pressure by regulating flow dress
It is set to throttle valve, shut-off valve, pressure reducing valve, expansion valve or expanding machine with expenditure and pressure；It is preferred that expanding machine.
Further, the cryogenic fluid cooling device further includes hot pump in low temp, and the hot pump in low temp includes externally heat absorption
Hot pump in low temp evaporator, and externally exothermic hot pump in low temp condenser；
The hot pump in low temp evaporator externally inhales low-grade thermal energy, is located at high temperature conduit outlet and the institute of steam exhaust regenerator
It states between cryogenic fluid memory, the container for being either located at cryogenic fluid memory inner cavity or being communicated with cryogenic fluid memory
In；
The hot pump in low temp condenser externally discharges high-grade thermal energy, be located at the outlet of steam exhaust regenerator cryogenic pipe with
Between main heat exchanger, heat release is carried out to the generating working medium of the relative low temperature of steam exhaust regenerator output；The hot pump in low temp is single-stage
Heat pump or cascade refrigeration heat pump.
Further, the ice chest equipment is additionally provided with gas compressor, reducing pressure by regulating flow equipment and cryogenic liquid storage tank；Institute
State the gas access that the ice chest equipment is arranged in gas compressor；
The throttle device be throttle valve, shut-off valve, pressure reducing valve, expansion valve or expanding machine with expenditure and pressure, preferably
Expanding machine；
The condensed fluid outlet of the ice chest equipment is arranged in the reducing pressure by regulating flow equipment；The cryogenic liquid storage tank setting
In the reducing pressure by regulating flow equipment export；The gas compressor, the ice chest equipment, the reducing pressure by regulating flow equipment, the low temperature
Wet tank is sequentially connected.
The gas pressurized inputted by gas compressor to ice chest equipment is not only able to the condensation temperature of lift gas meson
Degree, compressed gas, which increases density, also can increase the heat exchange efficiency of main heat exchanger, and the condensed fluid of the ice chest equipment exports setting
Expanding machine, the pressure energy in addition to capableing of the generation of gas recovery compressor, while high pressure gas or gas liquid mixture are by swollen
After swollen machine reducing pressure by regulating flow and acting, temperature also can be reduced further, would be more advantageous in the gas of ice chest equipment input
The condensation of body meson, condensation rate is also faster.
Further, the ice chest equipment is additionally provided with filter, molecular sieve adsorber, gas-liquid separator；The filtering
Device is set to the gas compressor entrance；The molecular sieve adsorber is set to the gas compressor entrance or outlet；
Function is the impurity removed in gas.
Further, the ice chest equipment, the low-temperature generation device, the steam exhaust recovering device, the cryogenic fluid
The outside of cooling device and corresponding pipeline, preferably low temperature material, relevant device is equipped with heat insulation layer.
Further, the present invention also provides a kind of techniques of gas condensation and low-temperature electricity-generating, which is characterized in that including as follows
Step:
The cryogenic fluid of the cryogenic fluid memory storage is temperature down to -196 DEG C of liquid nitrogen (or liquid air), by low
Geothermal liquid, which pumps, is pressurized to the cryogenic pipe of steam exhaust regenerator, the steam exhaust that is exported with cryogenic fluid steam turbine or expanding machine (temperature up to-
147 DEG C of critical-temperatures) it exchanges heat, low-temperature electricity-generating working medium absorbs exhaust steam heat energy, and temperature is thus lifted to -146 DEG C, and returns from steam exhaust
The cryogenic pipe of hot device is exported into the main heat exchanger of the ice chest equipment；In the insulated case of ice chest equipment with the ice chest
The gas of the gas access input of equipment exchanges heat；
The gas of ice chest equipment gas access input from top to bottom exchanges heat and cools down, and low-temperature electricity-generating working medium is in main heat exchanger pipe
Continuous heat absorption from the bottom to top in road, the gas temperature for causing gas access to input constantly reduces, while the main heat exchanger
Interior low-temperature electricity-generating Temperature of Working promotes temperature and pressure by -146 DEG C of continuous heat absorptions, and constantly gasification forms high temperature and height
The gas of pressure drives the cryogenic fluid steam turbine or expanding machine high speed rotation to do work；And generator high speed rotation is driven to export
Electric energy drives mechanical equipment output mechanical energy；
From the gas access of the ice chest equipment input gas, ice chest device height insulation shell in extremely low temperature
Main heat exchanger pipeline exchange heat, cause gas temperature constantly to reduce, when the gas access input gas temperature reduce
To the gas meson condensation temperature hereinafter, the gas will condense；Water vapour normal boiling point is 100 DEG C；The boiling of butane standard
- 0.5 DEG C of point；- 10 DEG C of sulfur dioxide；- 33.4 DEG C of ammonia normal boiling point；- 34 DEG C of chlorine；- 42 DEG C of propane；The boiling of hydrogen sulfide standard
- 61 DEG C of point；- 41 DEG C of normal boiling point of refrigerant R22；- 82 DEG C of R23 normal boiling point；- 26 DEG C of R134a normal boiling point, carbon dioxide mark
- 78.4 DEG C of quasi- boiling point；- 88.6 DEG C of ethane；- 47.7 DEG C of propane；- 103.8 DEG C of ethylene normal boiling point；Condensation temperature is higher than -146 DEG C
Gas there are also very much；By above-mentioned data, the liquid nitrogen (or liquid air) that the cryogenic fluid of low-temperature generation device is -196 DEG C faces
- 147 DEG C of boundary's temperature, the gas inputted into main heat exchanger with ice chest equipment gas access exchange heat, the gas meson
Normal boiling point is all higher than liquid nitrogen critical-temperature, exchanges heat with the intracorporal main heat exchanger pipeline of ice chest equipment insulated shell and realizes condensation；
The air extremely low for normal boiling point temperature, -183 DEG C of oxygen, -186 DEG C of argon gas, nitrogen normal boiling point -195.8
DEG C, for methane (- 161.5 DEG C of Natural gas standard boiling point), the low-temperature electricity-generating working medium of the low-temperature generation device just needs selection more
The liquid hydrogen (- 253 DEG C of boiling point, -240 DEG C of critical-temperature) and liquid helium (- 269 DEG C of boiling point) for adding low temperature are as low-temperature electricity-generating working medium, energy
It is enough that methane, air, the low-down meson of these boiling temperatures of nitrogen are condensed；The above is condensed into standard atmospheric pressure
Lower progress, the gas pressurized inputted by gas compressor to ice chest equipment is not only able to the condensation temperature of lift gas meson
Degree, compressed gas, which increases density, also can increase main heat exchanger heat exchange efficiency, and set in the outlet of the condensed fluid of the ice chest equipment
Expanding machine, the pressure energy in addition to capableing of the generation of gas recovery compressor, while high pressure high density gas or gas liquid mixture warp
After crossing expanding machine reducing pressure by regulating flow and acting, temperature can also be further decreased, and would be more advantageous in the gas of ice chest equipment input
The condensation of body meson, condensation rate is also faster.
If the boiling temperature of low-temperature electricity-generating working medium is lower than gas condensation temperature to be condensed from far away, compression energy is not needed
Enough it is directly realized by the condensation and liquefaction of gas to be condensed.It is more to alleviate gas condensation equipment used device existing in the prior art
Cost is big, the huger technical problem of the electricity charge that large-scale compressor consumes every year, realizes the technical effect for saving the energy.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And structure specifically noted by attached drawing is achieved and obtained.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of a kind of gas condensation and cryogenic fluid electricity generation system provided in an embodiment of the present invention；
Fig. 2 is a kind of gas condensation provided in an embodiment of the present invention and the cryogenic fluid cooling device with compression condensation
The structural schematic diagram of cryogenic fluid electricity generation system；
Fig. 3 is a kind of gas condensation provided in an embodiment of the present invention and the cryogenic fluid cooling device with hot pump in low temp
Cryogenic fluid power generation system structure schematic diagram；
Fig. 4 provides the ice chest device structure schematic diagram with gas compression for the embodiment of the present invention.
Icon: 1- cryogenic fluid memory；2- cryogenic liquid pump；3- steam exhaust regenerator；4- main heat exchanger；5- cryogenic fluid
Steam turbine or expanding machine；6- generator；7- ice chest insulated case；The gas access 8-；The outlet of 9- condensed fluid；10- compressor；
11- compression condensation device；12- reducing pressure by regulating flow device；13- hot pump in low temp；14- evaporator with heat pump；15- heat pump condenser；16- gas
Compressor；17- expanding machine；18- cryogenic liquid storage tank；
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", "left", "right",
"vertical", "horizontal", "inner", "outside" etc., indicated by orientation or positional relationship be orientation based on the figure or position
Relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, as occurred
Term " first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace such as occur
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Fig. 1 is the structural schematic diagram of a kind of gas condensation and cryogenic fluid electricity generation system provided in an embodiment of the present invention；Institute
State gas condensation and low-temperature generating system, including low-temperature generation device and steam exhaust recovering device；The low-temperature generation device and institute
It states steam exhaust recovering device head and the tail connection and forms closed loop；The low-temperature generation device includes the cryogenic fluid memory 1 being sequentially communicated,
Cryogenic liquid pump 2, the cryogenic pipe of steam exhaust regenerator 3, main heat exchanger 4, cryogenic fluid steam turbine or expanding machine 5；The steam exhaust
Recyclable device includes the cryogenic fluid steam turbine or expanding machine 5, the high temperature conduit of the steam exhaust heat exchanger 3, and cryogenic fluid is deposited
Reservoir 1；
The low-temperature generation device further includes ice chest equipment, the ice chest equipment by low-temperature generation device main heat exchanger 4,
The insulated case 7 outside the main heat exchanger is set in package to constitute；Gas access 8 and cold is provided on the insulated case
Solidifying liquid outlet 9；
Wherein, the cryogenic fluid memory 1 of low-temperature generation device is for providing liquid generating working medium (such as liquid nitrogen -196
DEG C), the cryogenic pipe of steam exhaust regenerator 3 is pressurized to by cryogenic liquid pump 2, absorbing the high temperature heat of steam exhaust, (steam turbine is swollen
The liquid nitrogen steam exhaust that swollen machine 5 exports is -147 DEG C of critical-temperatures), the generating working medium temperature exported from the cryogenic pipe of steam exhaust regenerator 3
Degree rises to -146 DEG C；Out of, the A point of Fig. 1 enters ice chest equipment 4 pipeline of main heat exchanger, constantly absorb heat (A point from the bottom to top
To B point)；The gas that ice chest equipment gas access 8 inputs is from top to bottom (C point to D point), while low in the main heat exchanger 4
Constantly heat absorption promotes temperature to room temperature to warm generating working medium (by -146 DEG C), and gasification forms the gas of high pressure, drives the low temperature
Working medium steam turbine or the acting of 5 high speed rotation of expanding machine；And 6 high speed rotation of generator is driven to export electric energy.
After the cryogenic fluid steam turbine or the acting of 5 high speed rotation of expanding machine, the steam exhaust temperature of discharge be critical-temperature (-
147 DEG C), into the high temperature conduit of steam exhaust regenerator 3, the liquid nitrogen (- 196 DEG C) exported with cryogenic liquid pump 2 exchanges heat, steam exhaust
Temperature constantly reduces, and exports from steam exhaust regenerator 3, recycles back to being formed in cryogenic fluid memory 1.
Cryogenic liquid pump 2 pressurizes, then by the generating working medium (- 196 DEG C of liquid nitrogen) in cryogenic fluid memory 1, is transported to weary
Cryogenic fluid steam turbine is absorbed in vapour regenerator 3 or the exhaust steam heat energy of (- 147 DEG C), the temperature of low-temperature electricity-generating working medium is discharged in expanding machine 5
Degree increases (- 146 DEG C, contain cryogenic fluid cooling device backheat), is entered in the main heat exchanger 4 of ice chest equipment by A point, continues
The gas thermal energy inputted from ice chest equipment gas access 8 is constantly absorbed, and gasification forms high pressure gas by the input of B point rapidly
And 5 high speed rotation of the cryogenic fluid steam turbine or expanding machine is driven, while 6 high speed rotation of generator being driven to export electric energy.
The high temperature steam exhaust that the cryogenic fluid steam turbine or expanding machine 5 are discharged, the cryogenic liquid exported with cryogenic liquid pump 2
Working medium (- 196 DEG C of liquid nitrogen) exchanges heat, and forms cryogenic liquid and returns in cryogenic fluid memory 1, so continuous circulation and not
Disconnected power generation output.
The gas that ice chest equipment gas access 8 inputs, enters in the insulated case of ice chest equipment by C point, by
It is exchanged heat (C to D point) up to lower with the main heat exchanger 4 cryogenic piping, gas constantly loses thermal energy, works as gas temperature
Lower than the condensation temperature of meson, the gas meson will be condensed constantly as liquid, from the externally output of condensed fluid outlet 9.
Therefore, the gas condensation that gas condensation and low-temperature generating system can realize that gas access 8 inputs is exported as liquid, together
When can also be absorbed heat by the cryogenic liquid generating working medium of more low temperature, gasification form high drive cryogenic fluid steam turbine or expansion
5 high speed rotation of machine, and 6 high speed rotation of generator is driven to export electric energy, it achieves many things at one stroke.
Fig. 2 is a kind of gas condensation provided in an embodiment of the present invention and the cryogenic fluid cooling device with compression condensation
The structural schematic diagram of cryogenic fluid electricity generation system；
Wherein, the low-temperature generation device and steam exhaust recovering device, the main heat exchanger 4 and ice chest equipment are complete with Fig. 1
It is exactly the same, Fig. 1 description is specifically please referred to, details are not described herein.
In actual moving process, the cryogenic liquid pump 2 of the cryogenic fluid electricity generation system, removing can generate electricity to cryogenic liquid
Working medium (- 196 DEG C of liquid nitrogen) has the function of adherence pressure, while in generating working medium (- 196 DEG C of liquid nitrogen) pressure process,
Can heat up to working medium (liquid pressing temperature increases little), and there are also the pipeline heat transfer temperature differences of steam exhaust regenerator 3.
Caused by the result is that: the temperature of the liquid working substance exported from steam exhaust regenerator 3 is higher than cryogenic fluid storage
Temperature of Working in device 1, it is eventually leading to the result is that the low-temperature electricity-generating working medium stored in cryogenic fluid memory 1, it can be with setting
Standby continuous operation occurs evaporating and be lost that (evaporation and loss of cryogenic liquid generating working medium, the latent heat of vaporization can take away a large amount of temperature
Differential thermal energy), in the operational process of equipment, need irregular to generate electricity to cryogenic liquid stored in cryogenic fluid memory 1
Working medium is supplemented, this is a troublesome thing.
Therefore, in Fig. 2 of the embodiment of the present invention, a kind of cryogenic fluid cooling device with compression condensation is provided, it is specific real
It is as follows to apply scheme:
The cryogenic liquid generating working medium stored in the cryogenic fluid memory 1 low temperature can occur with the operation of equipment
The evaporation of liquid generating working medium and leakage.Boil-off gas in Fig. 2 embodiment in cryogenic fluid memory 1, can be by compressor
10 are collected and are compressed, and by the compression of the compressor 10, gas density be will increase, and temperature can also increase, then
It is (final in the low-temperature electricity-generating working medium that the cryogenic pipe of thermal energy displacement to steam exhaust regenerator 3 is exported by compression condensation device 11
The energy be used to generate electricity), the compression condensation device 11 replaces thermal energy to after low-temperature electricity-generating working medium, the condensed fluid of high pressure
It is returned in cryogenic fluid memory 1 after being depressured by reducing pressure by regulating flow device 12, so continuous circulation.
The compressor 10 works on, and the partial vacuum of low pressure is formed before compressor, low in cryogenic fluid memory 1
Warm working medium continues evaporation endothermic (temperature in cryogenic fluid memory 1 is enabled constantly to reduce), compressor 10 by gas compression at
For high density and high temperature, constantly thermal energy is replaced by compression condensation device 11 and is used to generate electricity to low-temperature electricity-generating working medium, high pressure
It is returned in cryogenic fluid memory 1 after being depressured by reducing pressure by regulating flow device 12, so recycles, constantly reduce the cryogenic fluid
The temperature of cryogenic liquid generating working medium in memory 1, it will be able to the phenomenon that solving the evaporation of low-temperature electricity-generating working medium and being lost.
The reducing pressure by regulating flow device 12, preferably expanding machine, the expanding machine are not only able to the pressure energy of recycling compressor 10,
Also there is cooling function simultaneously.
Compression energy cannot be replaced to the low temperature that the cryogenic pipe of steam exhaust regenerator 3 exports and be sent out by the compression condensation device 11
In electrician's matter, level-one hot pump in low temp can be set again.
By above method, the temperature of cryogenic liquid generating working medium in cryogenic fluid memory 1 can constantly be realized
The phenomenon that reducing, being able to solve the evaporation of low-temperature electricity-generating working medium and be lost.
Fig. 3 is a kind of gas condensation provided in an embodiment of the present invention and the cryogenic fluid cooling device with hot pump in low temp
Cryogenic fluid power generation system structure schematic diagram；
The hot pump in low temp 13 includes the hot pump in low temp evaporator 14 externally to absorb heat, and externally exothermic hot pump in low temp condensation
Device 15；The hot pump in low temp evaporator 14 be located at steam exhaust regenerator 3 high temperature conduit outlet with the cryogenic fluid memory 1 it
Between, it is either located in 1 inner cavity of cryogenic fluid memory or the container communicated with cryogenic fluid memory 1, the hot pump in low temp
Evaporator 14 externally inhales low grade heat energy；
The hot pump in low temp condenser 15 is located between the cryogenic pipe outlet of steam exhaust regenerator 3 and main heat exchanger 4, described
15 purpose of hot pump in low temp condenser is external release high-grade thermal energy, is carried out to the low-temperature electricity-generating working medium that steam exhaust regenerator 3 exports
Heat release；
The hot pump in low temp is single-stage heat pump or cascade refrigeration heat pump.By above method, cryogenic fluid can be deposited
The temperature of cryogenic liquid generating working medium constantly realizes reduction in reservoir 1, is able to solve the steaming of above-mentioned cryogenic liquid generating working medium
Hair and leakage.
Fig. 4 provides the ice chest device structure schematic diagram with gas compression for the embodiment of the present invention.
The ice chest equipment has ice chest insulated case 7, is provided with gas access 8, insulated case at the top of insulated case
Bottom be provided with condensed fluid outlet 9, the main heat exchanger 4 of the low-temperature generation device, be arranged in the ice chest insulated case 7
Center of inside position, cryogenic pipe by A point enter the ice chest equipment ice chest insulated case 7 inside, A point connect steam exhaust return
The cryogenic pipe of hot device 3 exports, extremely ring of the generating working medium of low temperature inside ice chest equipment with gas access 8 (C point) entrance
The heat exchange of border temperature gas, a large amount of gas thermal energy for absorbing gas access 8 (C point) and entering, temperature and pressure are constantly increased, are sent out
Electrician's matter endothermic gasification formed high pressure gas from ice chest insulated case 7 (B point) come out, input and drive cryogenic fluid steam turbine or
5 high speed rotation of expanding machine drives 6 high speed rotation of generator to export electric energy.
The ice chest equipment is additionally provided with gas compressor 16, and the effect of filter and molecular sieve adsorber is filtering, keeps away
Exempt from impurity entrance, the operation of gas compressor 16 will improve the gas pressure and density for entering ice chest equipment, make gas and institute
The exchange capability of heat for stating main heat exchanger 4 is stronger, and improves the condensation temperature of gas, convenient for the rapid condensation of gas, while cold
Expanding machine 17 (and generator) is arranged in solidifying liquid outlet 9, the pressure energy in addition to capableing of the generation of gas recovery compressor 16, simultaneously
After 17 reducing pressure by regulating flow of expanding machine and acting, temperature can also be obtained further for high pressure high density gas or gas liquid mixture
Reduction, achieve many things at one stroke.The cryogenic condensation liquid enters cryogenic liquid storage tank 18 and carries out storage and externally output.
Further, the present invention also provides a kind of techniques of gas condensation and low-temperature electricity-generating, which is characterized in that including as follows
Step:
The cryogenic fluid of the cryogenic fluid memory storage is temperature down to -196 DEG C of liquid nitrogen (or liquid air), by low
Geothermal liquid, which pumps, is pressurized to the cryogenic pipe of steam exhaust regenerator, the steam exhaust that is exported with cryogenic fluid steam turbine or expanding machine (temperature up to-
147 DEG C of critical-temperatures) it exchanges heat, low-temperature electricity-generating working medium absorbs exhaust steam heat energy, and temperature is thus lifted to -146 DEG C, and returns from steam exhaust
The cryogenic pipe of hot device is exported into the main heat exchanger of the ice chest equipment；In the insulated case of ice chest equipment with the ice chest
The gas of the gas access input of equipment exchanges heat；
The gas of ice chest equipment gas access input from top to bottom exchanges heat and cools down, and low-temperature electricity-generating working medium is in main heat exchanger pipe
Continuous heat absorption from the bottom to top in road, the gas temperature for causing gas access to input constantly reduces, while the main heat exchanger
Interior low-temperature electricity-generating Temperature of Working promotes temperature and pressure by -146 DEG C of continuous heat absorptions, and constantly gasification forms high temperature and height
The gas of pressure drives the cryogenic fluid steam turbine or expanding machine high speed rotation to do work；And generator high speed rotation is driven to export
Electric energy drives mechanical equipment output mechanical energy；
From the gas access of the ice chest equipment input gas, ice chest device height insulation shell in extremely low temperature
Main heat exchanger pipeline exchange heat, cause gas temperature constantly to reduce, when the gas access input gas temperature reduce
To the gas meson condensation temperature hereinafter, the gas will condense；Water vapour normal boiling point is 100 DEG C；The boiling of butane standard
- 0.5 DEG C of point；- 10 DEG C of sulfur dioxide；- 33.4 DEG C of ammonia normal boiling point；- 34 DEG C of chlorine；- 42 DEG C of propane；The boiling of hydrogen sulfide standard
- 61 DEG C of point；- 41 DEG C of normal boiling point of refrigerant R22；- 82 DEG C of R23 normal boiling point；- 26 DEG C of R134a normal boiling point, carbon dioxide mark
- 78.4 DEG C of quasi- boiling point；- 88.6 DEG C of ethane；- 47.7 DEG C of propane；- 103.8 DEG C of ethylene normal boiling point；Condensation temperature is higher than -146 DEG C
Gas there are also very much；By above-mentioned data, the liquid nitrogen (or liquid air) that the cryogenic fluid of low-temperature generation device is -196 DEG C faces
- 147 DEG C of boundary's temperature, the gas inputted into main heat exchanger with ice chest equipment gas access exchange heat, the gas meson
Normal boiling point is all higher than liquid nitrogen critical-temperature, exchanges heat with the intracorporal main heat exchanger pipeline of ice chest equipment insulated shell and realizes condensation；
The air extremely low for normal boiling point temperature, -183 DEG C of oxygen, -186 DEG C of argon gas, nitrogen normal boiling point -195.8
DEG C, for methane (- 161.5 DEG C of Natural gas standard boiling point), the low-temperature electricity-generating working medium of the low-temperature generation device just needs selection more
The liquid hydrogen (- 253 DEG C of boiling point, -240 DEG C of critical-temperature) and liquid helium (- 269 DEG C of boiling point) for adding low temperature are as low-temperature electricity-generating working medium, energy
It is enough that methane, air, the low-down meson of these boiling temperatures of nitrogen are condensed；The above is condensed into standard atmospheric pressure
Lower progress, the gas pressurized inputted by gas compressor to ice chest equipment is not only able to the condensation temperature of lift gas meson
Degree, compressed gas, which increases density, also can increase main heat exchanger heat exchange efficiency, and set in the outlet of the condensed fluid of the ice chest equipment
Expanding machine, the pressure energy in addition to capableing of the generation of gas recovery compressor, while high pressure high density gas or gas liquid mixture warp
After crossing expanding machine reducing pressure by regulating flow and acting, temperature can also be further decreased, and would be more advantageous in the gas of ice chest equipment input
The condensation of body meson, condensation rate is also faster.
Further, the ice chest equipment, the low-temperature generation device, the steam exhaust recovering device, the cryogenic fluid
Cooling device and corresponding pipeline, preferably low temperature material, the outside of relevant device are equipped with heat insulation layer, and be engaged in low temperature at
Cooking technique, details are not described herein again.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of gas condensation and low-temperature generating system, which is characterized in that including low-temperature generation device and steam exhaust recovering device；Institute
Low-temperature generation device is stated to be connected to form closed loop with the steam exhaust recovering device head and the tail；The low-temperature generation device includes being sequentially communicated
Cryogenic liquid pump, main heat exchanger, cryogenic fluid steam turbine or expanding machine, the steam exhaust recovering device includes steam exhaust regenerator.
2. gas condensation according to claim 1 and low-temperature generating system, which is characterized in that the low-temperature generation device is also
Including ice chest equipment, the ice chest equipment is set in outside the main heat exchanger by the main heat exchanger and package of low-temperature generation device
The insulated case in face is constituted；Gas access and condensed fluid outlet are provided on the insulated case.
3. gas according to claim 1 condensation and low-temperature generating system, which is characterized in that the power generator further includes
The cryogenic pipe of cryogenic fluid memory and steam exhaust regenerator；The cryogenic pipe of the steam exhaust regenerator is arranged in cryogenic liquid pump
Between the main heat exchange；
The cryogenic fluid memory, cryogenic liquid pump, the cryogenic pipe of steam exhaust regenerator, ice chest equipment main heat exchanger, low
Warm working medium steam turbine or expanding machine are sequentially communicated.
4. gas condensation according to claim 1 and low-temperature generating system, which is characterized in that the steam exhaust recovering device is also
The cryogenic fluid steam turbine or expanding machine, the high temperature conduit of steam exhaust regenerator and the cryogenic fluid including power generator are deposited
Reservoir；
The cryogenic fluid steam turbine or expanding machine, the high temperature conduit of the steam exhaust regenerator, the cryogenic fluid memory according to
Secondary connection；The cryogenic fluid steam turbine or the steam exhaust temperature of expanding machine output, are the critical-temperature or overcritical of steam exhaust meson
Temperature.
5. gas condensation according to claim 4 and low-temperature generating system, which is characterized in that the steam exhaust recovering device is also
It is provided with cryogenic fluid cooling device, the working medium cooling device includes the cryogenic fluid memory being sequentially communicated, compressor, pressure
Contracting condenser, reducing pressure by regulating flow device；
The outlet of the reducing pressure by regulating flow device connects the cryogenic fluid memory, and compression condensation liquid is enabled to return to the low temperature work
Matter memory forms closed loop；The external heat release of compression condensation device is arranged between the steam exhaust regenerator and main heat exchanger；
Or it is located in steam exhaust regenerator；
The reducing pressure by regulating flow device is throttle valve, shut-off valve, pressure reducing valve, expansion valve or expanding machine with expenditure and pressure；It is preferred that
Expanding machine.
6. gas condensation according to claim 5 and low-temperature generating system, which is characterized in that the cryogenic fluid cooling dress
Setting further includes hot pump in low temp, and the hot pump in low temp includes the hot pump in low temp evaporator externally to absorb heat, and externally exothermic Low Temperature Thermal
Pump condenser；
The hot pump in low temp evaporator externally inhales low-grade thermal energy, be located at steam exhaust regenerator high temperature conduit outlet with it is described low
Between warm working medium memory, either it is located in cryogenic fluid memory inner cavity or the container communicated with cryogenic fluid memory；
The hot pump in low temp condenser externally discharges high-grade thermal energy, and the outlet and master for being located at steam exhaust regenerator cryogenic pipe are changed
Between hot device, heat release is carried out to the generating working medium of the relative low temperature of steam exhaust regenerator output；The hot pump in low temp is single-stage heat pump
Or cascade refrigeration heat pump.
7. gas condensation according to claim 2 and low-temperature generating system, which is characterized in that the ice chest equipment is also set up
There are gas compressor, reducing pressure by regulating flow equipment and cryogenic liquid storage tank；
The gas access of the ice chest equipment is arranged in the gas compressor；
The throttle device is throttle valve, shut-off valve, pressure reducing valve, expansion valve or expanding machine with expenditure and pressure, is preferably expanded
Machine；The condensed fluid outlet of the ice chest equipment is arranged in the reducing pressure by regulating flow equipment；The cryogenic liquid storage tank is arranged in institute
State reducing pressure by regulating flow equipment export；
The gas compressor, the ice chest equipment, the reducing pressure by regulating flow equipment, the cryogenic liquid storage tank are sequentially connected.
8. gas condensation according to claim 7 and low-temperature generating system, which is characterized in that the ice chest equipment is also set up
There are filter, molecular sieve adsorber；
The filter is set to the gas compressor entrance；The molecular sieve adsorber is set to the gas compressor and enters
Mouth or outlet.
9. the condensation of gas described in -8 and low-temperature generating system according to claim 1, which is characterized in that the ice chest equipment, institute
Low-temperature generation device, the steam exhaust recovering device and cryogenic fluid cooling device and corresponding pipeline, preferably low temperature material are stated,
The outside of relevant device is equipped with heat insulation layer.
10. a kind of gas condensation and low-temperature electricity-generating technique are suitable for the described in any item gas condensations of claim 1-9 and low temperature
Generating equipment, which comprises the steps of:
The cryogenic fluid of the cryogenic fluid memory storage is temperature down to -196 DEG C of liquid nitrogen (or liquid air), passes through Low Temperature Liquid
Body pumps the cryogenic pipe for being pressurized to steam exhaust regenerator, and (temperature reaches -147 for the steam exhaust exported with cryogenic fluid steam turbine or expanding machine
DEG C critical-temperature) it exchanges heat, low-temperature electricity-generating working medium absorbs exhaust steam heat energy, and temperature is thus lifted to -146 DEG C, and from steam exhaust backheat
The cryogenic pipe of device is exported into the main heat exchanger of the ice chest equipment；It is set in the insulated case of ice chest equipment with the ice chest
The gas of standby gas access input exchanges heat；
The gas of ice chest equipment gas access input from top to bottom exchanges heat and cools down, and low-temperature electricity-generating working medium is in main heat exchanger pipeline
Continuous heat absorption, the gas temperature for causing gas access to input constantly reduce from the bottom to top, while in the main heat exchanger
Low-temperature electricity-generating Temperature of Working promotes temperature and pressure by -146 DEG C of continuous heat absorptions, and constantly gasification forms high temperature and high pressure
Gas drives the cryogenic fluid steam turbine or expanding machine high speed rotation to do work；And generator high speed rotation is driven to export electric energy
Or drive mechanical equipment output mechanical energy；
The gas inputted from the gas access of the ice chest equipment, the master in the shell of ice chest device height insulation with extremely low temperature
Heat exchanger tube exchanges heat, and gas temperature is caused constantly to reduce, when the gas temperature of gas access input is reduced to this
The condensation temperature of gas meson is hereinafter, the gas will condense；Water vapour normal boiling point is 100 DEG C；Butane normal boiling point-
0.5℃；- 10 DEG C of sulfur dioxide；- 33.4 DEG C of ammonia normal boiling point；- 34 DEG C of chlorine；- 42 DEG C of propane；Hydrogen sulfide normal boiling point -61
℃；- 41 DEG C of normal boiling point of refrigerant R22；- 82 DEG C of R23 normal boiling point；- 26 DEG C of R134a normal boiling point, the boiling of carbon dioxide standard
- 78.4 DEG C of point；- 88.6 DEG C of ethane；- 47.7 DEG C of propane；- 103.8 DEG C of ethylene normal boiling point；Condensation temperature is higher than -146 DEG C of gas
There are also many for body；By above-mentioned data, the liquid nitrogen (or liquid air) that the cryogenic fluid of low-temperature generation device is -196 DEG C, stagnation temperature
- 147 DEG C of degree, the gas inputted into main heat exchanger with ice chest equipment gas access exchanges heat, the standard of the gas meson
Boiling point is all higher than liquid nitrogen critical-temperature, exchanges heat with the intracorporal main heat exchanger pipeline of ice chest equipment insulated shell and realizes condensation；
The air extremely low for normal boiling point temperature, -183 DEG C of oxygen, -186 DEG C of argon gas, -195.8 DEG C of nitrogen normal boiling point, first
For alkane (- 161.5 DEG C of Natural gas standard boiling point), the low-temperature electricity-generating working medium of the low-temperature generation device just needs selection more low temperature
Liquid hydrogen (- 253 DEG C of boiling point, -240 DEG C of critical-temperature) and liquid helium (- 269 DEG C of boiling point) be used as low-temperature electricity-generating working medium, can be to first
The low-down meson of these boiling temperatures of alkane, air, nitrogen is condensed；The above is condensed into be carried out at normal atmospheric pressure
, the gas pressurized inputted by gas compressor to ice chest equipment is not only able to the condensation temperature of lift gas meson, compression
Gas, which increases density, also can increase main heat exchanger heat exchange efficiency, and set expanding machine in the outlet of the condensed fluid of the ice chest equipment,
Pressure energy in addition to capableing of the generation of gas recovery compressor, while high pressure high density gas or gas liquid mixture pass through expanding machine
After reducing pressure by regulating flow and acting, temperature can also be further decreased, and it is cold that the gas meson inputted in ice chest equipment would be more advantageous
Solidifying, condensation rate is also faster.
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| CN201811423292.4A CN109386326A (en) | 2018-11-27 | 2018-11-27 | A kind of condensation of gas and cryogenic fluid electricity generation system and technique |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159377A (en) * | 2019-05-31 | 2019-08-23 | 深圳大学 | In cryogenically hot working fluid cascade utilization ORC magnetic suspension generation system |
| CN111397248A (en) * | 2020-03-30 | 2020-07-10 | 吴巧魁 | Green heat pump refrigerating and heating device applied to working of steam turbine |
| CN111503921A (en) * | 2020-04-22 | 2020-08-07 | 西安交通大学 | System for acquiring supercooling degree of liquid hydrogen of space launching field |
-
2018
- 2018-11-27 CN CN201811423292.4A patent/CN109386326A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159377A (en) * | 2019-05-31 | 2019-08-23 | 深圳大学 | In cryogenically hot working fluid cascade utilization ORC magnetic suspension generation system |
| CN111397248A (en) * | 2020-03-30 | 2020-07-10 | 吴巧魁 | Green heat pump refrigerating and heating device applied to working of steam turbine |
| CN111503921A (en) * | 2020-04-22 | 2020-08-07 | 西安交通大学 | System for acquiring supercooling degree of liquid hydrogen of space launching field |
| CN111503921B (en) * | 2020-04-22 | 2021-07-27 | 西安交通大学 | System for acquiring supercooling degree of liquid hydrogen of space launching field |
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Application publication date: 20190226 |