CN107702432A - Gas preparation system and the system to be generated electricity using air separation and Preparation equipment - Google Patents
Gas preparation system and the system to be generated electricity using air separation and Preparation equipment Download PDFInfo
- Publication number
- CN107702432A CN107702432A CN201711080782.4A CN201711080782A CN107702432A CN 107702432 A CN107702432 A CN 107702432A CN 201711080782 A CN201711080782 A CN 201711080782A CN 107702432 A CN107702432 A CN 107702432A
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- China
- Prior art keywords
- gas
- levels
- medium
- condenser
- cooling
- Prior art date
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- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 66
- 238000000926 separation method Methods 0.000 title claims abstract description 16
- 230000005611 electricity Effects 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 103
- 230000004087 circulation Effects 0.000 claims abstract description 87
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 29
- 239000007789 gas Substances 0.000 claims description 452
- 230000015654 memory Effects 0.000 claims description 121
- 238000001816 cooling Methods 0.000 claims description 100
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 74
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 53
- 239000012530 fluid Substances 0.000 claims description 44
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 38
- 238000005194 fractionation Methods 0.000 claims description 33
- 230000000740 bleeding effect Effects 0.000 claims description 28
- 238000009835 boiling Methods 0.000 claims description 27
- 238000000746 purification Methods 0.000 claims description 27
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 23
- 239000001301 oxygen Substances 0.000 claims description 23
- 229910052760 oxygen Inorganic materials 0.000 claims description 23
- 239000003345 natural gas Substances 0.000 claims description 22
- 239000001257 hydrogen Substances 0.000 claims description 20
- 229910052739 hydrogen Inorganic materials 0.000 claims description 20
- 229910052786 argon Inorganic materials 0.000 claims description 19
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 18
- 238000009413 insulation Methods 0.000 claims description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 16
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 15
- 238000009833 condensation Methods 0.000 claims description 15
- 230000005494 condensation Effects 0.000 claims description 15
- 239000007791 liquid phase Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 12
- 239000001569 carbon dioxide Substances 0.000 claims description 12
- 239000001307 helium Substances 0.000 claims description 12
- 229910052734 helium Inorganic materials 0.000 claims description 12
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003034 coal gas Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 150000002431 hydrogen Chemical class 0.000 claims description 9
- 239000001294 propane Substances 0.000 claims description 9
- 229910021529 ammonia Inorganic materials 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 239000000112 cooling gas Substances 0.000 claims description 7
- -1 freon Chemical compound 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 5
- 239000002699 waste material Substances 0.000 abstract description 8
- 238000005057 refrigeration Methods 0.000 description 44
- 239000003507 refrigerant Substances 0.000 description 31
- 238000003860 storage Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000011800 void material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910001868 water Inorganic materials 0.000 description 4
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004781 supercooling Methods 0.000 description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical compound C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 229910052704 radon Inorganic materials 0.000 description 1
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 description 1
- 239000002760 rocket fuel Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/06—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation
-
- 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
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Heat energy recycle technical field is prepared the present invention relates to gas, more particularly to a kind of gas preparation system and utilizes air separation and the system that is generated electricity of Preparation equipment.The gas preparation system prepares pipeline and heat energy utilization pipeline including gas;Gas prepares gas piping entrance, gas pre-cooler and the gas tube outlet that pipeline includes being sequentially communicated;Heat energy utilization pipeline includes N number of circulation loop;When N is 1, first circulation loop includes gas pre-cooler, first turbine, first-stage condenser and level liquid pump;During N >=2, N circulation loops include 1 grade of condenser of N, N level steam turbines, N levels condenser and N level liquid pumps.The system to be generated electricity using air separation and Preparation equipment includes gas preparation system.Gas preparation system provided by the invention and the system to be generated electricity using air separation and Preparation equipment, for solving the technical problem of thermal waste present in prior art.
Description
Technical field
The present invention relates to gas to prepare heat energy recycle technical field, more particularly to a kind of gas preparation system and utilization
The system that air is separated and Preparation equipment is generated electricity.
Background technology
Space division, it is exactly production oxygen, nitrogen, also argon gas, rare gas for each component gas in air is separated
A set of industrial equipment of helium, neon, argon, krypton, xenon, radon etc..The pre-cooler of existing space division is discharged heat energy using water-cooling pattern
Into air, do not utilized well, cause the waste of substantial amounts of heat energy.
Liquefied natural gas process flow, it is that natural gas is condensed, is collapsed into cryogenic liquid.Generally use water cooling side at present
Caused heat energy in the preparation of natural gas and liquefaction process is emitted into air by formula, is not utilized well, is caused big
The waste of the heat energy of amount.
The content of the invention
It is an object of the invention to provide gas preparation system, to solve the technology of thermal waste present in prior art
Problem.
It is existing to solve the present invention also aims to provide the system to be generated electricity using air separation and Preparation equipment
The technical problem of thermal waste present in technology.
Based on above-mentioned first purpose, gas preparation system provided by the invention, including gas prepare pipeline and heat energy utilization
Pipeline;
Gas piping entrance, gas pre-cooler and the gas piping that the gas prepares pipeline and includes being sequentially communicated go out
Mouthful;
Gas compressing apparatus is provided between the gas piping entrance and the gas pre-cooler, or, the gas
Gas compressing apparatus is provided between body pre-cooler and gas piping outlet;
The heat energy utilization pipeline includes N number of circulation loop for the gas-liquid phase transition medium that circulates;Wherein, N be more than etc.
In 1 integer;
When N is 1, first circulation loop includes the gas pre-cooler, the first turbine or one that head and the tail are sequentially communicated
Level expanding machine, first-stage condenser and level liquid pump;When N is the integer more than or equal to 2, N circulation loops include head and the tail successively
N-1 levels condenser, N level steam turbines or the N levels expanding machine of connection, N levels condenser and N level liquid pumps;The N-1 levels condenser is used
The N media cooling N-1 level steam turbines of N circulation loops or the N-1 media of N-1 levels expanding machine output are flowed through in order;The N
Level condenser is used for the N media for cooling down N level steam turbines or the output of N levels expanding machine;The first medium in the first circulation loop
For cryogenic liquid medium;The N media are that normal atmosphere depresses low boiling point in 0 degree Celsius of cryogenic liquid medium;
The gas pre-cooler is used for the first medium cooling institute for making the first circulation loop of the heat energy utilization pipeline
State gas and prepare the gas of pipeline and prepare medium.
The optional technical scheme of the present invention is that the gas, which prepares pipeline, includes gas heat exchange system;The air heat
Switch is used to make the gas for flowing to the gas piping outlet from the gas piping entrance to prepare medium cooling;
The gas piping entrance, the gas compressing apparatus, the gas pre-cooler and gas heat exchange dress
Put and be sequentially communicated;Or the gas piping entrance, the gas pre-cooler, the gas compressing apparatus and the gas
Heat-exchange device is sequentially communicated.
The optional technical scheme of the present invention is that the gas, which prepares pipeline, includes gas-filtering device and purification for gas dress
Put;
The gas piping entrance, the gas-filtering device, the gas compressing apparatus, the gas pre-cooler,
The gas purification apparatus and the gas heat exchange system are sequentially communicated;
Or the gas piping entrance, the gas-filtering device, the gas pre-cooler, the gas compression
Device, the gas purification apparatus and the gas heat exchange system are sequentially communicated;
Or the gas piping entrance, the gas-filtering device, the gas pre-cooler, the purification for gas
Device, the gas compressing apparatus and the gas heat exchange system are sequentially communicated.
The optional technical scheme of the present invention is the gas piping outlet gas fractionation unit;
The gas heat exchange system includes gas feedback heat-exchange device and gas generating heat-exchange device;The gas
Feedback heat-exchange device is arranged between the gas generating heat-exchange device and the gas fractionation unit;
The gas feedback heat-exchange device be used to making the gas of gas fractionation unit output prepare medium cooling from
The gas that the gas pre-cooler flows to the gas piping outlet prepares medium;
The gas generating heat-exchange device is used to make the N media of the heat energy utilization pipeline to cool down the gas preparation
The gas of pipeline prepares medium;Handed over gas generating heat at the both ends of the gas pre-cooler or the N levels condenser
The both ends of changing device are respectively communicated with;Wherein, N is the integer more than or equal to 1.
The optional technical scheme of the present invention is to be set between the gas feedback heat-exchange device and the gas fractionation unit
It is equipped with gas expander.
The optional technical scheme of the present invention is that the heat energy utilization pipeline includes cooling down in line pipeline;The cooling is in line
Pipeline includes the gas fractionation unit, the N levels condenser and the in line output end of cooling being sequentially communicated;The N levels condenser is used
The N level steam turbines or the N of N levels expanding machine output are cooled down in making the gas in the gas fractionation unit prepare medium
Medium, and it is conveyed to the in line output end discharge of the cooling.
The optional technical scheme of the present invention is that the heat energy utilization pipeline includes cooling down in line pipeline;The cooling is in line
Pipeline includes the in line cryogenic fluid memory of cooling, the N levels condenser and the in line output end of cooling being sequentially communicated;The N
Level condenser is used to make the in line medium of cooling in the in line cryogenic fluid memory of cooling cool down the N level steam turbines or institute
The N media of N levels expanding machine output are stated, and are conveyed to the in line output end discharge of the cooling;
The in line liquid pump of cooling, institute are provided between the in line cryogenic fluid memory of the cooling and the N levels condenser
State and cool down in line liquid pump for making the in line medium of cooling in the in line cryogenic fluid memory of cooling be conveyed to the N levels
Condenser;
Cooling memory is provided between the in line cryogenic fluid memory of cooling and the in line liquid pump of cooling to go out
Mouth valve.
The optional technical scheme of the present invention is that described gas preparation system includes indirect heat exchange circulation loop;
The indirect heat exchange circulation loop includes the gas heat exchange system, the indirect compression dress that head and the tail are sequentially communicated
Put, indirect heat exchange and indirect choke valve;
The gas heat exchange system is used to make the indirect cyclic process medium of the indirect heat exchange circulation loop to cool down from described
The gas that gas pre-cooler flows to the gas piping outlet prepares medium;
The indirect heat exchange is used to make the N media cooling indirect heat exchange of the heat energy utilization pipeline to be recycled back to
The indirect cyclic process medium on road;The both ends of the gas pre-cooler or the N levels condenser and the indirect heat exchange
Both ends are respectively communicated with.
The optional technical scheme of the present invention is, when N is the integer more than or equal to 1, the N levels condenser and the N levels liquid
The N grade low-temp working medium memories for storing N media are provided between body pump;
N level condenser pumps are communicated between the N levels condenser and the N grade low-temps working medium memory;The N levels condenser pump
The N media that the N levels condenser is flowed through for making are inputted to the N grade low-temps working medium memory;
N level liquid separators are communicated between the N levels condenser and the N levels condenser pump;The N levels liquid separator
The N levels condenser pump is conveyed to for separating the N media of the N circulation loops, and by the N media in liquid phase;
N level memory inlet valves are provided between the N levels condenser pump and the N grade low-temps working medium memory;The N
N level memory outlet valves are provided between level liquid pump and the N grade low-temps working medium memory;
The N grade low-temps working medium memory is provided with N levels memory compensation air bleeding valve;The N levels memory compensation exhaust
Valve is used to compensating or discharging the medium in the N grade low-temps working medium memory;
The N levels condenser is provided with N levels condensation compensation air bleeding valve;N levels condensation compensation air bleeding valve be used to compensate or
Person discharges the medium in the N levels condenser;
The N level steam turbines are integrated device with the N levels condenser, or the N levels expanding machine condenses with the N levels
Device is integrated device;
The N circulation loops are provided with one or many places circulation loop drain valve, and the circulation loop drain valve is used
In medium in the discharge N circulation loops;
It is cased with being incubated outside the N level steam turbines or N levels expanding machine, the N levels condenser and N levels liquid pump
Layer;
When N is the integer more than or equal to 2, the boiling point of the N media is not higher than the boiling point of the N-1 media;
When N is integer more than or equal to 1, the N media be carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen, freon,
Methane, ethane, propane, natural gas, coal gas or biogas;
When N is integer more than or equal to 1, the N level steam turbines or the N levels expanding machine drive connection N levels generator or
Person's driving power equipment;
It is that boiling point is subzero gas under normal temperature and pressure that the gas, which prepares medium,;The gas prepare medium for air,
Natural gas, methane, ethane, oxygen, nitrogen, argon gas, hydrogen or helium;
Heat-insulation layer is cased with outside the gas pre-cooler;
Heat-insulation layer is cased with outside the gas compressing apparatus;
Heat-insulation layer is cased with outside the gas heat exchange system.
Based on above-mentioned second purpose, the system provided by the invention to be generated electricity using air separation and Preparation equipment, bag
Include described gas preparation system.
Beneficial effects of the present invention:
Gas preparation system provided by the invention, including gas prepare pipeline;Gas prepares pipeline and specifically includes flue
Road entrance, gas pre-cooler, gas piping outlet and gas compressing apparatus, so that the preparation of gas can be realized, for example with
Space division prepares oxygen, nitrogen, argon gas etc., and available natural gas of production and living etc. is prepared by the natural gas of nature;It is described
Gas preparation system also includes heat energy utilization pipeline, is followed by the N number of of gas-liquid phase transition medium that be used to circulate of heat energy utilization pipeline
Loop back path, and make by gas pre-cooler the first medium cooling gas in the first circulation loop of heat energy utilization pipeline prepare
The gas of pipeline prepares medium, to be converted into using the heat energy in gas pre-cooler and by the heat energy by heat energy utilization pipeline
1, to N level steam turbines or 1 to the mechanical energy of the rotation of N levels expanding machine output, effectively make use of gas to prepare the heat in pipeline
Can, reduce the waste of heat energy.
The system provided by the invention to be generated electricity using air separation and Preparation equipment, including gas preparation system, can
The heat energy in pipeline is effectively prepared using gas, reduces the waste of heat energy.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the first pass schematic diagram for the gas preparation system that the embodiment of the present invention one provides;
Fig. 2 is the second procedure schematic diagram for the gas preparation system that the embodiment of the present invention one provides;
Fig. 3 is the first pass schematic diagram of the heat energy utilization pipeline for the gas preparation system that the embodiment of the present invention one provides;
Fig. 4 is the second procedure schematic diagram of the heat energy utilization pipeline for the gas preparation system that the embodiment of the present invention one provides.
Icon:800- gases prepare pipeline;810- gas piping entrances;820- gas-filtering devices;830- gas compressions
Device;840- gas purification apparatus;850- gas heat exchange systems;851- gas feedback heat-exchange devices;852- gases generate electricity
Heat-exchange device;860- gas pipings export;870- gas fractionation units;880- gas expanders;The indirect compression sets of 890-;
891- indirect heat exchanges;The indirect choke valves of 892-;
100- heat energy utilization pipelines;101- gas pre-coolers;102- first turbines;103- first-stage condensers;1031-
One-level condensation compensation air bleeding valve;104- level liquid separators;105- one-level condenser pumps;106- one-level cryogenic fluid memories;
1061- single-level memory inlet valves;1062- single-level memory outlet valves;1063- single-level memories compensate air bleeding valve;
107- level liquid pumps;108- one-level generators;
202- second turbines;203- secondary condensers;204- secondary liquid separators;205- B-grade condensation pumps;206-
Two level cryogenic fluid memory;2061- second-level storage inlet valves;2062- second-level storage outlet valves;207- two level liquid
Body pump;208- secondary generators;
The level steam turbines of 302- tri-;303- three-level condensers;304- three-level liquid separators;305- three-level condenser pumps;306-
Three-level cryogenic fluid memory;3061- third level storage inlet valves;3062- third level storage outlet valves;307- three-level liquid
Body pump;308- three-level generators;
401- compressors;402- heat exchangers;403- refrigerant liquid separators;404- refrigeration low-temperature working medium memories;4041-
Freeze memory inlet valve;4042- refrigeration memory outlet valves;405- refrigeration steam turbines;406- refrigeration and generation machines;407-
Compress Inlet fluid separator;408- cools down in line cryogenic fluid memory;4081- cools down memory outlet valve;409- is cold
In line liquid pump;410- cools down in line valve;
501- heat exchange air bleeding valves;502- circulation loop drain valves.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;Can
To be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Embodiment one
Referring to shown in Fig. 1-Fig. 4, present embodiments providing a kind of gas preparation system;Fig. 1 and Fig. 2 provide for the present embodiment
Gas preparation system first pass schematic diagram and second procedure schematic diagram, wherein Fig. 1 can be space division be prepared by system
Schematic flow sheet, Fig. 2 can be that natural gas be prepared by the schematic flow sheet of system;Fig. 3 and Fig. 4 is what the present embodiment provided
The first pass schematic diagram and second procedure schematic diagram of the heat energy utilization pipeline of gas preparation system.Gas shown in Fig. 1 or Fig. 2
A the and B ports of pre-cooler 101 are A the and B ports of the gas pre-cooler 101 shown in Fig. 3 or Fig. 4;C shown in Fig. 1 or Fig. 2
It is used for the both ends of the gas pre-cooler 101 or N level condensers shown in connection figure 3 or Fig. 4 with D ports;E ports shown in Fig. 1
For output end.
Referring to the gas preparation system that shown in Fig. 1-Fig. 4, the present embodiment provides, applied to space division, natural gas, methane, second
The preparation of the gases such as alkane, oxygen, nitrogen, argon gas, hydrogen or helium.
The gas preparation system prepares pipeline 800 and heat energy utilization pipeline 100 including gas.
Gas prepares gas piping entrance 810, gas pre-cooler 101 and the flue that pipeline 800 includes being sequentially communicated
Way outlet 860;Alternatively, gas prepares gas piping entrance 810, the gas pre-cooler that pipeline 800 includes being sequentially communicated
101st, gas heat exchange system 850 and gas tube outlet 860;Gas heat exchange system 850 is used to make from gas pre-cooler
101 gases for flowing to gas piping outlet 860 prepare medium cooling.
Gas compressing apparatus 830 is provided between gas piping entrance 810 and gas pre-cooler 101, or, gas is pre-
Gas compressing apparatus 830 is provided between device for cooling 101 and gas piping outlet 860;Namely gas compressing apparatus 830 can be set
Put before gas pre-cooler 101, can also be arranged on after gas pre-cooler 101.Alternatively, gas compressing apparatus
830 can be Reciprocting piston compressor, centrifugal compressor, screw compressor etc..Alternatively, gas piping entrance
810th, gas compressing apparatus 830, gas pre-cooler 101 and gas heat exchange system 850 are sequentially communicated;Or gas piping
Entrance 810, gas pre-cooler 101, gas compressing apparatus 830 and gas heat exchange system 850 are sequentially communicated.Can be according to reality
Gas prepared by border needs sets gas piping entrance 810, gas compressing apparatus 830, gas pre-cooler 101 and air heat to hand over
Order between changing device 850.
Heat energy utilization pipeline 100 includes N number of circulation loop that circulation has gas-liquid phase transition medium;Wherein, N is more than or equal to 1
Integer;N for example can be 1,2,3,4,5 etc..
N be 1 when, first circulation loop include head and the tail be sequentially communicated gas pre-cooler 101, first turbine 102 or
One-stage expansion machine, first-stage condenser 103 and level liquid pump 107;Alternatively, the first medium in first circulation loop is liquid phase
Become medium.Alternatively, the first medium for flowing through first-stage condenser 103 is delivered to gas pre-cooler by level liquid pump 107
101, for first medium after carrying out heat exchange with gas pre-cooler 101, first medium heating is in all or part of gaseous state,
I.e. first medium is in all or part of gaseous state in all or part of liquid endothermic disintergration.In specific environment, first is situated between
Matter can form high pressure, so as to drive first turbine 102 or one-stage expansion machine to do work.Alternatively, first turbine 102
Or one-stage expansion machine drive connection one-level generator 108, pass through gas so that gas to be prepared to the heat energy of pipeline 800 to a certain extent
Body pre-cooler 101 is converted into the electric energy of one-level generator 108, improves generating efficiency.In addition, first turbine 102 or one-level
Expanding machine can be with other rotation apparatuses of drive connection, such as power-equipment.Alternatively, the first medium in first circulation loop is
Cryogenic liquid medium;Alternatively, the first medium in first circulation loop is that normal atmosphere depresses low boiling point in 0 degree Celsius of low temperature
Liquid medium.
When N is the integer more than or equal to 2, N circulation loops include N-1 levels condenser, the N level steamers that head and the tail are sequentially communicated
Machine or N levels expanding machine, N levels condenser and N level liquid pumps.N-1 levels condenser is used to make the N media for flowing through N circulation loops
Cool down N-1 level steam turbines or the N-1 media of N-1 levels expanding machine output.Alternatively, N levels liquid pump will flow through N level condensers
N media are delivered to N-1 level condensers, and in N-1 level condensers, N media and N-1 media carry out heat exchange, and N-1 is situated between
Matter cooling be in all or part of liquid, namely N-1 media in all or part of gaseous state exothermic conversion be in whole or
Operative liquid, the heating of N media is in all or part of gaseous state, namely N media are in all or part of liquid endothermic disintergration
For in all or part of gaseous state.In specific environment, N media can form high pressure, so as to drive N level steam turbines or
N levels expanding machine does work.Alternatively, N level steam turbines or N level expanding machine drive connection N level generators, will flow to a certain extent
The heat energy of N-1 media through N-1 level condensers is converted into the electric energy of N level generators, improves generating efficiency.In addition, N level steamers
Machine or N levels expanding machine can be with other rotation apparatuses of drive connection, such as power-equipment.Alternatively, the N of N circulation loops
Medium is that normal atmosphere depresses low boiling point in 0 degree Celsius of cryogenic liquid medium.
N levels condenser is used for the N media for cooling down N level steam turbines or the output of N levels expanding machine.That is, the system includes one
During individual circulation loop, first-stage condenser is used for the first medium for cooling down first turbine or the output of one-stage expansion machine;The system bag
When including two circulation loops, secondary condenser is used for the second medium for cooling down second turbine or the output of compound expansion machine;With this
Analogize.
When N is the integer more than or equal to 1, N level steam turbines or N level expanding machine drive connection generators;With by one to N level vapour
Turbine or a mechanical energy rotated to N levels expanding machine are converted into electric energy.When the system includes a circulation loop, one-level steamer
Machine or one-stage expansion machine drive connection one-level generator, the generator of the system include one-level generator;When the system includes two
During individual circulation loop, first turbine or one-stage expansion machine drive connection one-level generator, second turbine or compound expansion machine
Drive connection secondary generator, the generator of the system include one-level generator and secondary generator;By that analogy.
Gas pre-cooler 101 is used for the first medium cooling gas for making the first circulation loop of heat energy utilization pipeline 100
The gas for preparing pipeline 800 prepares medium, so that the first circulation loop of heat energy utilization pipeline 100 prepares pipeline 800 with gas
Heat exchange is carried out by gas pre-cooler 101, heat energy in pipeline 800 is prepared to recycle gas.
Alternatively, heat-insulation layer is cased with outside gas pre-cooler 101, heat exchange is carried out with ambient temperature to reduce.
Alternatively, heat-insulation layer is cased with outside gas compressing apparatus 830, heat exchange is carried out with ambient temperature to reduce.
Alternatively, heat-insulation layer is cased with outside gas heat exchange system 850, heat exchange is carried out with ambient temperature to reduce.
The place that other needs of gas preparation system described in the present embodiment are incubated, it is also desirable to take some to protect accordingly
Warm measure.
Gas preparation system described in the present embodiment prepares pipeline 800 including gas;Gas prepares pipeline 800 and specifically included
Gas piping entrance 810, gas pre-cooler 101, gas piping outlet 860 and gas compressing apparatus 830, so that gas can be realized
The preparation of body, oxygen, nitrogen, argon gas etc. are prepared for example with space division, preparing production and living by the natural gas of nature can use
Natural gas etc.;The gas preparation system also includes heat energy utilization pipeline 100, passes through being used for for heat energy utilization pipeline 100
N number of circulation loop of circulation gas-liquid phase transition medium, and make the first of heat energy utilization pipeline 100 by gas pre-cooler 101
The gas that the first medium cooling gas of circulation loop prepares pipeline 800 prepares medium, with using in gas pre-cooler 101
The heat energy is simultaneously converted into 1 to N level steam turbines or 1 rotation exported to N levels expanding machines by heat energy by heat energy utilization pipeline 100
It mechanical energy, effectively make use of gas to prepare the heat energy in pipeline 800, reduce the waste of heat energy.
Shown in Figure 1, in the alternative of the present embodiment, gas, which prepares pipeline 800, includes the He of gas-filtering device 820
Gas purification apparatus 840;By gas-filtering device 820, dust contained in medium and other impurities are prepared to filter gas,
So that the abrasion on the internal mechanical movements surface of gas compressing apparatus 830 can be reduced, ensure that gas prepares the quality of medium;Pass through gas
Body purification devices 840, the moisture contained in medium, carbon dioxide, acetylene, other carbon are prepared to filter, adsorb or remove gas
The materials such as hydrogen compound;Such as it can avoid or reduce to a certain extent the moisture being frozen and carbon dioxide deposition, block up
Plug blocking channel, pipeline and valve caused by the air separation columns such as pipeline, valve, gas fractionation unit.And for example, acetylene gathers
There is the danger of blast in liquid oxygen, dust can wear operating machinery.In order to ensure the long-term peace of the preparation facilities such as space division, natural gas
For row for the national games, it is necessary to set gas-filtering device 820 and/or gas purification apparatus 840, it is miscellaneous to remove some with special cleaning equipment
Matter.Gas purification apparatus 840 can use absorption method and freezing process purification gas, for example with molecular sieve adsorption.Alternatively,
Heat-insulation layer is cased with outside gas-filtering device 820, heat exchange is carried out with ambient temperature to reduce.Alternatively, gas purification apparatus 840
Heat-insulation layer is cased with outside, heat exchange is carried out with ambient temperature to reduce.The place that other needs are incubated, it is also desirable to take some corresponding
Insulation.
Alternatively, the quantity of gas purification apparatus 840 is two, and two gas purification apparatus 840 are set up in parallel;So as to gas
Body purification devices 840 are in regeneration, two used interchangeablies.That is, one of purifier apparatus work, another purifier apparatus is again
It is raw.Alternatively, gas purification apparatus 840 is interchangeable use using two molecular sieve equipments.
Alternatively, gas piping entrance 810, gas-filtering device 820, gas compressing apparatus 830, gas pre-cooler
101st, gas purification apparatus 840 and gas heat exchange system 850 are sequentially communicated;
Or gas piping entrance 810, gas-filtering device 820, gas pre-cooler 101, gas compressing apparatus 830,
Gas purification apparatus 840 and gas heat exchange system 850 are sequentially communicated;
Or gas piping entrance 810, gas-filtering device 820, gas pre-cooler 101, gas purification apparatus 840,
Gas compressing apparatus 830 and gas heat exchange system 850 are sequentially communicated.Gas can be set according to the gas for being actually needed preparation
Line entry 810, gas-filtering device 820, gas compressing apparatus 830, gas pre-cooler 101, the and of gas purification apparatus 840
Order between gas heat exchange system 850.
It is shown in Figure 1, in the alternative of the present embodiment, the connection gas fractionation unit 870 of gas piping outlet 860.
The gas of needs is isolated by gas fractionation unit 870, the state of the gas can be gaseous state, liquid or gas-liquid mixed shape
State.Such as gas fractionation unit 870 is air separation column, space division system prepares oxygen, nitrogen, argon gas by gas fractionation unit 870
Deng.Alternatively, heat-insulation layer is cased with outside gas fractionation unit 870, heat exchange is carried out with ambient temperature to reduce.
Alternatively, gas heat exchange system 850 includes gas feedback heat-exchange device 851 and gas generating heat-exchange device
852;Gas feedback heat-exchange device 851 is arranged between gas generating heat-exchange device 852 and gas fractionation unit 870.
Alternatively, it is cold that the gas that gas feedback heat-exchange device 851 is used to make gas fractionation unit 870 export prepares medium
But the gas for gas piping outlet 860 being flowed to from gas pre-cooler 101 prepares medium;Pass through gas feedback heat-exchange device
851, so that the part cryogenic media directly cooling that gas fractionation unit 870 exports flows to flue from gas pre-cooler 101
The gas of way outlet 860 prepares medium, so that gas fractionation unit 870 is easier to prepare gas.Alternatively, gas fractionation unit
The gas of 870 outputs prepares medium and discharged through gas feedback heat-exchange device 851, as shown in Fig. 2 gas fractionation unit 870 is defeated
The gas gone out prepares E mouth discharge of the medium through gas feedback heat-exchange device 851.
Alternatively, gas generating heat-exchange device 852 is used for the N medium cooling gas systems for making heat energy utilization pipeline 100
The gas of standby pipeline 800 prepares medium;The both ends of gas pre-cooler 101 or N level condensers fill with gas generating heat exchange
852 both ends are put to be respectively communicated with, namely gas pre-cooler 101 or N levels condenser with gas generating heat-exchange device 852 simultaneously
Connection is set.Wherein, N is the integer more than or equal to 1.Pipeline 800 is prepared with cooling gas by gas generating heat-exchange device 852
Gas prepare medium, while the gas that gas can also be prepared to pipeline 800 prepares the thermal energy exchange of medium to N media,
So that the heat energy is converted into the mechanical energy for the rotation that steam turbine or expanding machine export by heat energy utilization pipeline 100.Such as the institute of Fig. 1,3,4
Show, in figure C the and D ports of gas generating heat-exchange device 852 be used for connection figure 3 or gas pre-cooler 101 shown in Fig. 4 or
The both ends of person's N level condensers.
Alternatively, gas expander 880 is provided between gas feedback heat-exchange device 851 and gas fractionation unit 870.
The medium that gas fractionation unit 870 exports passes through gas expander 880, sharp temperature drop after being expanded, is advantageous to gas
Feedback heat-exchange device 851 cool down from gas pre-cooler 101 flow to gas piping outlet 860 gas prepare medium.Gas
Expanding machine 880 for example can be rotation blade machinery.
Shown in Figure 3, in the alternative of the present embodiment, heat energy utilization pipeline 100, which includes circulation, gas-liquid phase transition Jie
The refrigeration cycle of matter;By refrigeration cycle to cool down the N media that N level steam turbines or N levels expanding machine export.
Specifically, refrigeration cycle include head and the tail be sequentially communicated N levels condenser, compressor 401, heat exchanger 402,
Freeze steam turbine 405 or refrigerating expander or expansion valve.That is, N levels condenser, compressor 401, heat exchanger 402 and system
The cold head and the tail of steam turbine 405 are sequentially communicated and form refrigeration cycle;Or N levels condenser, compressor 401, heat exchanger 402
It is sequentially communicated with refrigerating expander head and the tail and forms refrigeration cycle;Or N levels condenser, compressor 401, heat exchanger 402
It is sequentially communicated with expansion valve head and the tail and forms refrigeration cycle.
N levels condenser is used to make the refrigerant cooling N level steam turbines for flowing through refrigeration cycle or the output of N levels expanding machine
N media.
Compressor 401 is used to compress refrigerant, and refrigerant is cooled down by heat exchanger 402, is delivered to refrigeration vapour
Turbine 405 or refrigerating expander or expansion valve, to drive refrigeration steam turbine 405 or refrigerating expander to rotate.Alternatively, freeze vapour
Turbine 405 or refrigerating expander drive connection refrigeration and generation machine 406, so that the N for flowing through N level condensers to be situated between to a certain extent
The heat energy of matter is converted into the electric energy of refrigeration and generation machine 406, improves generating efficiency.In addition, refrigeration steam turbine 405 or refrigerating expander
Can be with other rotation apparatuses of drive connection, for example, refrigeration steam turbine 405 or refrigerating expander drive connection compressor, are formed
Compressor described in mechanical energy feedback.
Alternatively, the refrigerant of refrigeration cycle is the cryogenic liquid medium that boiling point is less than 0 degree Celsius.Alternatively,
The boiling point of refrigerant is not higher than the boiling point of N media, in order to which refrigerant cools down N media in N level condensers.It is optional
Ground, refrigerant are inorganic Low medium or organic cryogenic media.Alternatively, the boiling point of refrigerant is less than -30 DEG C.Its
In, refrigerant for example can be carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen, freon, methane, ethane, propane, natural gas,
Coal gas or biogas etc.;Certainly, refrigerant can also be other cryogenic medias.Preferably, refrigerant be methane, ethane or
Person's boiling point is less than methane, the medium of ethane.
Alternatively, the refrigerant of refrigeration cycle is that gas-liquid becomes phase medium, namely refrigerant is in the kind of refrigeration cycle
The conversion of gas phase and liquid phase is carried out in loop.Alternatively, compressed through compressor 401 and the refrigeration after the cooling of heat exchanger 402 is situated between
Matter is in a liquid state in whole or in part, and refrigerant discharges pressure after flowing through refrigeration steam turbine 405 or refrigerating expander acting and is in
All or part of gaseous state.
In the alternative of the present embodiment, heat exchanger 402 is arranged between N levels liquid pump and N-1 level condensers;Compressor
After 401 compression refrigerants, refrigerant is heated up, and the N media and kind of refrigeration cycle of N circulation loops are made by heat exchanger 402
The refrigerant heat exchange in loop, i.e., refrigerant is cooled into all or part of liquid by N media, and N media are freezed
Medium is thermally formed portion gas.In theory, after heat exchanger 402 heats N media, the compressed compression of machine 401 system can be made
Heat energy caused by cold medium can be used effectively, and improve the energy utilization rate of system, reduce the loss of energy.
Alternatively, the heat exchange air bleeding valve for exhaust is provided with the pipeline between heat exchanger 402 and N-1 level condensers
501.The pressure on the pipeline between heat exchanger 402 and N-1 level condensers can be discharged by the air bleeding valve 501 that exchanges heat.For example, the
After N media are thermally formed portion gas by refrigerant, the increased pressure of pipeline, by exchanging heat, the release of air bleeding valve 501 part is pressed
Power, to improve the security of N circulation loops operation, and improve the security of system.
Alternatively, compression Inlet fluid separator 407 is communicated between N levels condenser and compressor 401;It is compressed into oral fluid
Body separator 407 is used for the refrigerant for separating refrigeration cycle, and will be conveyed to compressor in the refrigerant of gas phase
401;By compressing Inlet fluid separator 407, using the refrigerant for ensuring to be conveyed to compressor 401 as gas, and then improve
The service life of compressor 401.
Alternatively, freezing, it is low that refrigeration is communicated between steam turbine 405 or refrigerating expander or expansion valve, with heat exchanger 402
Warm working medium memory 404;To store refrigerant by refrigeration low-temperature working medium memory 404, and improve refrigeration cycle
Stability.Wherein, refrigeration low-temperature working medium memory 404 is used to store refrigerant, can improve system to a certain extent
The stability in SAPMAC method loop.
Alternatively, it is communicated with refrigerant liquid separator 403 between heat exchanger 402 and refrigeration low-temperature working medium memory 404;System
Cold liquid separator 403 is used for the refrigerant for separating refrigeration cycle, and the refrigerant in liquid phase is conveyed into refrigeration
Cryogenic fluid memory 404;By refrigerant liquid separator 403, to ensure to be conveyed to the system of refrigeration low-temperature working medium memory 404
Cold medium is liquid.
Alternatively, refrigeration memory is provided between refrigeration low-temperature working medium memory 404 and refrigerant liquid separator 403 to enter
Mouth valve 4041;Set between refrigeration steam turbine 405 or refrigerating expander or expansion valve, with refrigeration low-temperature working medium memory 404
There is refrigeration memory outlet valve 4042.By memory inlet valve 4041 and the refrigeration memory outlet valve 4042 of freezing,
So that refrigeration low-temperature working medium memory 404 can form independent cryogenic fluid storage facilities, while can also be with kind of refrigeration cycle
Refrigerant in the equipment such as the N levels condenser in loop, compressor 401 is circulated with being separated, to run under specific circumstances
Protection and control system.
Referring to shown in Fig. 3, Fig. 4, in the alternative of the present embodiment, heat energy utilization pipeline 100 includes cooling down in line pipeline;
The N media that N level steam turbines or N levels expanding machine export are cooled down by cooling down in line pipeline.
Specifically, the in line cryogenic fluid memory 408 of cooling, the condensation of N levels that in line pipeline includes being sequentially communicated are cooled down
Device and the in line output end of cooling;Alternatively, cool down and be provided with cooling between in line cryogenic fluid memory 408 and N level condenser
In line liquid pump 409;Cool down in line pipeline include be sequentially communicated the in line cryogenic fluid memory 408 of cooling, cooling it is in line
Liquid pump 409, N levels condenser and the in line output end of cooling;Alternatively, the in line output end of cooling is provided with cooling inline valve
Door 410.Alternatively, cool down and be provided with cooling memory between in line cryogenic fluid memory 408 and the in line liquid pump 409 of cooling
Outlet valve 4081;The in line cryogenic fluid memory 408 of cooling and cooling are controlled by cooling down memory outlet valve 4081
The break-make of pipeline between in line liquid pump 409.
Cool down in line liquid pump 409 be used for make the in line medium of cooling that cools down in line cryogenic fluid memory 408 convey
N level condensers are given, and are discharged through the in line output end of supercooling, it may also be said to are discharged through supercooling inline valve door 410.For example, beat
The in line valve 410 of cooling is opened, in line medium is cooled down and is discharged by cooling down in line output end.N levels condenser is used to make cooling in line
The N media of the in line medium cooling N level steam turbines of cooling or the output of N levels expanding machine in cryogenic fluid memory, and be conveyed to
Cool down in line output end discharge;By making, the in line medium of cooling cools down N level steam turbines in N level condensers or N level expanding machines are defeated
The N media gone out, so that N circulation loops being capable of normal operation.
Alternatively, the in line medium of cooling for cooling down in line pipeline is less than 0 degree Celsius of cryogenic liquid medium for boiling point.It is optional
Ground, the boiling point for cooling down in line medium are not higher than the boiling point of N media, cooled down in order to cool down in line medium in N level condensers
N media.Alternatively, it is inorganic Low medium or organic cryogenic media to cool down in line medium.Alternatively, in line medium is cooled down
Boiling point be less than -30 DEG C.Wherein, cool down in line medium for example can be carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen, freon,
Methane, ethane, propane, natural gas, coal gas or biogas etc.;Certainly, it can also be other cryogenic medias to cool down in line medium.It is excellent
Selection of land, cool down the medium that in line medium is less than nitrogen for nitrogen or boiling point.
Alternatively, it is non-combustible medium to cool down in line medium, for example, carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen, fluorine profit
Hold high, cool down in line medium and directly discharge.Alternatively, it is combustible medium to cool down in line medium;Such as it is first to cool down in line medium
Alkane, ethane, propane, natural gas, coal gas or biogas etc..
In the alternative of the present embodiment, the low temperature that in line pipeline can also use gas to prepare the preparation of pipeline 800 is cooled down
Medium cools down N level condensers.
Specifically, heat energy utilization pipeline 100 includes cooling down in line pipeline;Cool down the gas that in line pipeline includes being sequentially communicated
Body separator 870, N levels condenser and the in line output end of cooling;N levels condenser is used to make the gas in gas fractionation unit 870
Body prepares medium cooling N level steam turbines or the N media of N levels expanding machine output, and is conveyed to the in line output end discharge of cooling.It is logical
The cryogenic media for crossing the preparation of gas fractionation unit 870 directly cools down N level steam turbines or the N media of N levels expanding machine output.
Alternatively, the in line liquid pump 409 of cooling is provided between gas fractionation unit 870 and N level condensers, cooling is in line
Liquid pump 409 is conveyed to N level condensers for making the gas in gas fractionation unit 870 prepare medium, and gas prepares medium in N
Absorb heat in level condenser and discharged by cooling down in line output end.By making the gas of low temperature prepare medium in N level condensers
N level steam turbines or the N media of N levels expanding machine output are cooled down, so that N circulation loops being capable of normal operation.The gas of low temperature
It can be for example the nitrogen in space division, oxygen, argon etc. to prepare medium.
In the alternative of the present embodiment, heat energy utilization pipeline 100 includes refrigeration cycle and/or cooling vertical pipe
Road, i.e. heat energy utilization pipeline 100 include refrigeration cycle, either heat energy utilization pipeline 100 include cooling down in line pipeline or
Heat energy utilization pipeline 100 includes refrigeration cycle and cools down in line pipeline.Alternatively, heat energy utilization pipeline 100 includes refrigeration
Circulation loop or the in line pipeline of cooling, to simplify heat energy utilization pipeline 100, reduce the construction cost of system.In addition, heat energy utilization
Pipeline 100 can also include other equipment, pipelines for being used to cool down N level steam turbines or the N media of N levels expanding machine output.
In the alternative of the present embodiment, when N is the integer more than or equal to 1, set between N levels condenser and N level liquid pumps
It is equipped with N grade low-temp working medium memories;Wherein, N grade low-temps working medium memory is used to store N media, can be to a certain extent
Improve the stability of N circulation loops.For example, when such as N is 1, set between first-stage condenser 103 and level liquid pump 107
It is equipped with one-level cryogenic fluid memory 106;Wherein, one-level cryogenic fluid memory 106 is used to store first medium, can be one
Determine the stability in raising first circulation loop in degree.Alternatively, it is cased with heat-insulation layer outside N grade low-temps working medium memory.
Alternatively, when N is the integer more than or equal to 1, N levels are communicated between N levels condenser and N grade low-temp working medium memories
Condenser pump;N levels condenser pump is used to make the N media for flowing through N level condensers input to N grade low-temp working medium memories;Pass through N levels
Condenser pump, the N media for flowing through N level condensers are conveyed to N grade low-temp working medium memories.Such as N be 1 when, one-level condensation
One-level condenser pump 105 is communicated between device 103 and one-level cryogenic fluid memory 106;One-level condenser pump 105 flows through one for order
The first medium of level condenser 103 is inputted to one-level cryogenic fluid memory 106;By one-level condenser pump 105, will flow through
The first medium of first-stage condenser 103 is conveyed to one-level cryogenic fluid memory 106.Alternatively, it is cased with being incubated outside N levels condenser pump
Layer.
Alternatively, when N is the integer more than or equal to 1, N level liquid is communicated between N levels condenser and N level condenser pumps and is separated
Device;N levels liquid separator is used for the N media for separating N circulation loops, and the N media in liquid phase are conveyed into the condensation of N levels
Pump;By N level liquid separators, to ensure to be conveyed to the N media of N grade low-temp working medium memories as liquid through N level condenser pumps.
Such as N be 1 when, level liquid separator 104 is communicated between first-stage condenser 103 and one-level condenser pump 105;Level liquid point
It is used for the first medium for separating first circulation loop from device 104, and the first medium in liquid phase is conveyed to one-level condenser pump
105;By level liquid separator 104, to ensure to be conveyed to one-level cryogenic fluid memory 106 through one-level condenser pump 105
First medium is liquid.Alternatively, it is cased with heat-insulation layer outside N levels liquid separator.
Alternatively, when N is the integer more than or equal to 1, N levels are provided between N levels condenser pump and N grade low-temp working medium memories
Memory inlet valve;N level memory outlet valves are provided between N levels liquid pump and N grade low-temp working medium memories;Pass through N
Level memory inlet valve and N level memory outlet valves, so that N grade low-temp working medium memories can form independent low temperature work
Matter storage facilities, while can also be carried out with the N media in the equipment such as the N levels condensers of N circulation loops, N level liquid pumps
Circulate with separating, with running protection under specific circumstances and control system.Such as N be 1 when, one-level condenser pump 105 is low with one-level
Single-level memory inlet valve 1061 is provided between warm working medium memory 106;Level liquid pump 107 is deposited with one-level cryogenic fluid
Single-level memory outlet valve 1062 is provided between reservoir 106;Stored by single-level memory inlet valve 1061 and one-level
Device outlet valve 1062, so that one-level cryogenic fluid memory 106 can form independent cryogenic fluid storage facilities, while
It can be circulated with the first medium in the equipment such as the first-stage condenser 103 in first circulation loop, level liquid pump 107 with being divided
From with running protection under specific circumstances and control system.
Alternatively, when N is the integer more than or equal to 1, N grade low-temp working medium memories are provided with the compensation exhaust of N levels memory
Valve;N levels memory compensation air bleeding valve is used to compensating or discharging the medium in N grade low-temp working medium memories, and the medium can be N
N media in grade low-temp working medium memory, or other Jie such as air in first void N grade low-temp working medium memories
Matter;Air bleeding valve is compensated by N levels memory, so that the N media of N grade low-temp working medium memories can be supplemented, to compensate N circulations
Loop leakage, the N media of volatilization;Air bleeding valve is compensated by N levels memory, additionally it is possible to discharge in N grade low-temp working medium memories
In the N media of gas, it can to a certain extent reduce and either avoid N grade low-temp working medium memories from bearing pressure or bear
Larger pressure, to improve the security performance of N grade low-temp working medium memories.Such as N be 1 when, one-level cryogenic fluid memory 106
It is provided with single-level memory compensation air bleeding valve 1063;Single-level memory compensation air bleeding valve 1063 is low for compensating or discharging one-level
First medium in warm working medium memory 106;Air bleeding valve 1063 is compensated by single-level memory, so that a grade low-temp work can be supplemented
The first medium of matter memory 106, to compensate the first medium of the leakage of first circulation loop, volatilization;Mended by single-level memory
Repay air bleeding valve 1063, additionally it is possible to discharge in one-level cryogenic fluid memory 106 in the first medium of gas.
Alternatively, when N is the integer more than or equal to 1, N level condensers are provided with N levels condensation compensation air bleeding valve;N levels condense
Compensation air bleeding valve is used to compensating or discharging the medium in N level condensers, and the medium can be the N media in N level condensers,
Can also be other media such as the air in first void N level condensers.Compensation air bleeding valve is condensed by N levels, so that N can be supplemented
The N media of level condenser, to compensate the N media of the leakage of N circulation loops, volatilization;Compensation air bleeding valve is condensed by N levels,
It can also discharge in N levels condenser in the N media of gas, can reduce or avoid to a certain extent N level condensers to hold
By larger pressure, to improve the security performance of N level condensers.Such as N be 1 when, first-stage condenser 103 be provided with one-level condensation
Compensate air bleeding valve 1031;One-level condensation compensation air bleeding valve 1031 is used to compensating or discharging the medium in first-stage condenser 103, should
Medium can be first-stage condenser 103 in first medium, or air in first void first-stage condenser 103 etc. its
His medium;Pass through one-level condensation compensation air bleeding valve 1031, additionally it is possible to the first medium of first-stage condenser 103 is supplemented, to compensate the
The leakage of one circulation loop, the first medium of volatilization;Compensation air bleeding valve 1031 is condensed by one-level, first-stage condenser can be discharged
It is in the first medium or other impurities of gas in 103, can reduces or avoid first-stage condenser 103 to bear to a certain extent
Larger pressure, to improve the security performance of first-stage condenser 103.
Alternatively, when N is integer more than or equal to 1, N level steam turbines and N level condensers are integrated device, or N levels are swollen
Swollen machine is integrated device with N level condensers, with simplied system structure, reduces system cost.Such as N be 1 when, first turbine with
First-stage condenser is integrated device, or one-stage expansion machine is integrated device with first-stage condenser.
Alternatively, when N is the integer more than or equal to 1, N circulation loops are provided with one or the discharge of many places circulation loop
Valve 502, circulation loop drain valve 502 are used to discharge medium in N circulation loops;The medium can be the N in N level condensers
Medium, or other media such as air in first void N level condensers.Alternatively, circulation loop drain valve 502 is set
In the output end or input of N level condensers;Alternatively, circulation loop drain valve 502 is arranged on N level steam turbines or N levels are swollen
The output end or input of swollen machine.As shown in Figure 3, Figure 4, show that first circulation loop is arranged on level liquid pump in figure
Circulation loop drain valve 502 between 107 and one-level cryogenic fluid memory 106.
Alternatively, the N level steam turbines or N levels expanding machine, the N levels condenser and N levels liquid pump overcoat
There is heat-insulation layer.
Alternatively, first medium is inorganic Low medium or organic cryogenic media.Alternatively, the boiling point of first medium is high
In or less than 0 DEG C (at one atm).Wherein, first medium for example can be water, carbon dioxide, ammonia, helium, hydrogen, oxygen,
Argon, nitrogen, freon, methane, ethane, propane, natural gas, coal gas or biogas etc.;Certainly, first medium can also be that other are low
Warm medium.Preferably, first medium is the fuel gas such as hydrogen, methane, ethane, propane, oxygen, natural gas, coal gas or biogas.
Alternatively, when N is the integer more than or equal to 2, the boiling point of N media is not higher than the boiling point of N-1 media, in order to
N media cool down N-1 media in N-1 level condensers.Alternatively, N media are inorganic Low medium or organic low temperature
Medium.Alternatively, N media are that normal atmosphere depresses low boiling point in 0 degree Celsius of cryogenic liquid medium.Alternatively, N media
Boiling point be less than -30 DEG C.Wherein, when N is integer more than or equal to 2, N media for example can be carbon dioxide, ammonia, helium, hydrogen,
Oxygen, argon, nitrogen, freon, methane, ethane, propane, natural gas, coal gas or biogas etc.;Certainly, N media can also be other
Cryogenic media.Preferably, first medium is carbon dioxide or ammonia, and second medium is freon, and the 3rd medium is nitrogen.
Alternatively, it for example can be methane, ethane, propane, oxygen, natural gas, coal gas or biogas to cool down in line medium
Deng combustible medium.Preferably, it is liquid hydrogen or liquid natural gas to cool down in line medium, is most clean water caused by combustion of hydrogen
Steam, any pollution will not be produced to environment, while calorific value caused by combustion of hydrogen is also highest, therefore in space flight and rocket
Fuel system all pay the utmost attention to liquid hydrogen, with the expansion of application market and the reduction of production cost, liquid hydrogen price also will be bright
Aobvious reduction, human future development is likely to be the most environmentally friendly liquid hydrogen energy epoch.
Alternatively, it is inorganic Low medium either organic cryogenic media or mixed gas that gas, which prepares medium,.Alternatively,
The boiling point that gas prepares medium is higher or lower than 0 DEG C (at one atm).Alternatively, it is normal for normal temperature to prepare medium for gas
Pressure boiling point is subzero gas;Wherein, it for example can be air, natural gas, methane, ethane, oxygen, nitrogen that gas, which prepares medium,
Gas, argon gas, hydrogen or helium etc.;Certainly, it can also be other media that gas, which prepares medium,.Preferably, gas prepares medium
For air or natural gas.
In order to more be apparent from the present embodiment, in the alternative of the present embodiment, heat energy utilization pipeline 100 includes stream
It is connected with a circulation loop of gas-liquid phase transition medium and cools down in line pipeline.Namely heat energy utilization pipeline 100 includes first circulation
Loop and the in line pipeline of cooling.Alternatively, the first medium in first circulation loop is carbon dioxide or ethane;Cool down vertical pipe
The in line medium of cooling on road is methane, liquid oxygen, liquid hydrogen.
Specifically, first circulation loop includes gas pre-cooler 101, the first turbine 102 that head and the tail are sequentially communicated
Or one-stage expansion machine, first-stage condenser 103, level liquid separator 104, one-level condenser pump 105, single-level memory inlet valve
1061st, one-level cryogenic fluid memory 106, single-level memory outlet valve 1062 and level liquid pump 107;First turbine
102 or one-stage expansion machine drive connection one-level generator 108.
Cool down the in line cryogenic fluid memory 408 of cooling, first-stage condenser 103 and cold that in line pipeline includes being sequentially communicated
In line output end;First-stage condenser 103 is used to make the in line medium cooling of the cooling cooled down in line cryogenic fluid memory 408
First turbine 102 or the first medium of one-stage expansion machine output, and it is conveyed to the in line output end discharge of cooling;Cool down in line low
The in line liquid pump 409 of cooling is provided between warm working medium memory 408 and first-stage condenser 103.
It should be noted that heat energy utilization pipeline 100 can include circulation have gas-liquid phase transition medium N number of circulation loop and
Cool down in line pipeline.
As N be 2 when, second circulation loop include head and the tail be sequentially communicated first-stage condenser 103, second turbine 202 or
Compound expansion machine, secondary condenser 203, secondary liquid separator 204, B-grade condensation pump 205, second-level storage inlet valve
2061st, two level cryogenic fluid memory 206, second-level storage outlet valve 2062 and secondary liquid pump 207;Second turbine
202 or compound expansion machine drive connection secondary generator 208.
As N be 3 when, the 3rd circulation loop include head and the tail be sequentially communicated secondary condenser 203, three level steam turbines 302 or
Three-level expanding machine, three-level condenser 303, three-level liquid separator 304, three-level condenser pump 305, third level storage inlet valve
3061st, three-level cryogenic fluid memory 306, third level storage outlet valve 3062 and three-level liquid pump 307;Three level steam turbines
302 or three-level expanding machine drive connection three-level generator 308.
Shown in Figure 2, in the alternative of the present embodiment, the gas preparation system is recycled back to including indirect heat exchange
Road.
Indirect heat exchange circulation loop include head and the tail be sequentially communicated gas heat exchange system 850, indirect compression set 890,
Indirect heat exchange 891 and indirect choke valve 892.
Gas heat exchange system 850 is used to make the indirect cyclic process medium of indirect heat exchange circulation loop to cool down from the pre- cold charge of gas
Put 101 gases for flowing to gas piping outlet 860 and prepare medium;
Indirect heat exchange 891 is used to making the N media of heat energy utilization pipeline 100 to cool down between indirect recuperated cycle loop
Connect circulatory mediator;The both ends and the both ends of indirect heat exchange 891 of gas pre-cooler 101 or N level condensers are respectively communicated with,
Namely gas pre-cooler 101 or N levels condenser are arranged in parallel with indirect heat exchange 891.Pass through gas heat exchange system
850 and indirect heat exchange 891, so that the N media of heat energy utilization pipeline 100 pass through indirect heat exchange circulation loop cooling gas
The gas that pre-cooler 101 flows to gas piping outlet 860 prepares medium.As in Figure 2-4, indirect heat exchange 891 in figure
C and D ports be used for connection figure 3 or the gas pre-cooler 101 shown in Fig. 4 or the both ends of N level condensers.
Embodiment two
Embodiment two provides a kind of system to be generated electricity using air separation and Preparation equipment, and the embodiment includes real
The gas preparation system described in example one is applied, the technical characteristic of the gas preparation system disclosed in embodiment one is also applied for the implementation
Example, the technical characteristic of the published gas preparation system of embodiment one are not repeated to describe.
The system to be generated electricity using air separation and Preparation equipment that the present embodiment provides includes gas preparation system.It is logical
Gas preparation system is crossed so that air prepares the gases such as oxygen, nitrogen.
The system to be generated electricity described in the present embodiment using air separation and Preparation equipment has gas described in embodiment one
The advantages of body preparation system, it is not repeated to describe herein the advantages of the gas preparation system disclosed in embodiment one.
In order to more be apparent from the present embodiment, illustrate space division technique flow briefly below:
Referring to shown in Fig. 1 of embodiment one, air through gas piping entrance 810 into gas-filtering device 820 filter with
Afterwards, enter gas compressing apparatus 830 to be compressed, the air themperature after overcompression can raise, then by gas precooling
Device 101 is exchanged heat, and high temperature heat caused by gas compressing apparatus 830 is changed into electric energy using cryogenic media or mechanical energy is defeated
Go out, relative to using for water cooling, because the inside of gas pre-cooler 101 uses cryogenic liquid meson, temperature is relatively low, favorably
Temperature behind reduction gas compressing apparatus 830, while also it is capable of the energy expenditure of less gas compressing apparatus 830.
Compressed air after supercooling, gas purification apparatus 840 is entered, by the moisture in air, carbon dioxide, second
Alkynes and other hydrocarbons etc. are purged and purified (for example, remaining nitrogen and oxygen, and micro argon gas etc.).Due to
Gas purification apparatus 840 needs to be regenerated, and sets two gas purification apparatus 840;One of purifier apparatus work, in addition
One purifier apparatus regeneration.
Alternatively, the air purified by gas purification apparatus 840, then carry out gas heat exchange system 850 and carry out deep cooling,
The liquid air (liquid nitrogen and liquid oxygen) of formation enters the separation that gas fractionation unit 870 carries out liquid nitrogen and liquid oxygen, formed liquid nitrogen,
Liquid oxygen and liquid argon output of products.
Alternatively, gas heat exchange system 850 includes gas feedback heat-exchange device 851 and gas generating heat-exchange device
852;Gas fractionation unit 870 can also fractionate out a part of low temperature nitrogen and cryogenic oxygen, be filled by gas feedback heat exchange
Put 851 to be absorbed heat, pure nitrogen at room and oxygen are exported after re-heat for users to use.
Optionally, the cryogenic high pressure nitrogen and oxygen that gas fractionation unit 870 exports, the equipment such as expanding machine can also be used
Pressure is discharged, output mechanical energy forms cold simultaneously, is easy to gas feedback heat-exchange device 851 to condense air and forms liquid air.
Finally it should be noted that:Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations;To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that:Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of gas preparation system, it is characterised in that prepare pipeline and heat energy utilization pipeline including gas;
The gas prepares gas piping entrance, gas pre-cooler and the gas tube outlet that pipeline includes being sequentially communicated;
Gas compressing apparatus is provided between the gas piping entrance and the gas pre-cooler, or, the gas is pre-
Gas compressing apparatus is provided between device for cooling and gas piping outlet;
The heat energy utilization pipeline includes N number of circulation loop for the gas-liquid phase transition medium that circulates;Wherein, N is more than or equal to 1
Integer;
When N is 1, it is swollen that first circulation loop includes the gas pre-cooler, first turbine or one-level that head and the tail are sequentially communicated
Swollen machine, first-stage condenser and level liquid pump;When N is the integer more than or equal to 2, N circulation loops include head and the tail and are sequentially communicated
N-1 levels condenser, N level steam turbines or N levels expanding machine, N levels condenser and N level liquid pumps;The N-1 levels condenser is used to make
Flow through the N media cooling N-1 level steam turbines of N circulation loops or the N-1 media of N-1 levels expanding machine output;The N levels are cold
Condenser is used for the N media for cooling down N level steam turbines or the output of N levels expanding machine;The first medium in the first circulation loop is low
Geothermal liquid medium;The N media are that normal atmosphere depresses low boiling point in 0 degree Celsius of cryogenic liquid medium;
The gas pre-cooler is used to make the first medium in the first circulation loop of the heat energy utilization pipeline to cool down the gas
The gas that body prepares pipeline prepares medium.
2. gas preparation system according to claim 1, it is characterised in that the gas prepares pipeline and handed over including air heat
Changing device;The gas heat exchange system is used to make the gas system that the gas piping outlet is flowed to from the gas piping entrance
Standby medium cools down;
The gas piping entrance, the gas compressing apparatus, the gas pre-cooler and the gas heat exchange system according to
Secondary connection;Or the gas piping entrance, the gas pre-cooler, the gas compressing apparatus and the air heat are handed over
Changing device is sequentially communicated.
3. gas preparation system according to claim 2, it is characterised in that the gas, which prepares pipeline, includes gas filtration
Device and gas purification apparatus;
It is the gas piping entrance, the gas-filtering device, the gas compressing apparatus, the gas pre-cooler, described
Gas purification apparatus and the gas heat exchange system are sequentially communicated;
Or the gas piping entrance, the gas-filtering device, the gas pre-cooler, the gas compressing apparatus,
The gas purification apparatus and the gas heat exchange system are sequentially communicated;
Or the gas piping entrance, the gas-filtering device, the gas pre-cooler, the gas purification apparatus,
The gas compressing apparatus and the gas heat exchange system are sequentially communicated.
4. gas preparation system according to claim 2, it is characterised in that the gas piping outlet gas separation
Device;
The gas heat exchange system includes gas feedback heat-exchange device and gas generating heat-exchange device;The gas feedback
Heat-exchange device is arranged between the gas generating heat-exchange device and the gas fractionation unit;
The gas that the gas feedback heat-exchange device is used to make the gas fractionation unit export prepares medium and cooled down from described
The gas that gas pre-cooler flows to the gas piping outlet prepares medium;
The gas generating heat-exchange device is used to make the N media cooling gas of the heat energy utilization pipeline to prepare pipeline
Gas prepare medium;The both ends of the gas pre-cooler or the N levels condenser fill with the gas generating heat exchange
The both ends put are respectively communicated with;Wherein, N is the integer more than or equal to 1.
5. gas preparation system according to claim 4, it is characterised in that the gas feedback heat-exchange device with it is described
Gas expander is provided between gas fractionation unit.
6. gas preparation system according to claim 4, it is characterised in that it is in line that the heat energy utilization pipeline includes cooling
Pipeline;The in line pipeline of cooling includes the gas fractionation unit, the N levels condenser and the in line output of cooling being sequentially communicated
End;The N levels condenser is used to make the gas in the gas fractionation unit prepare the medium cooling N level steam turbines or described
The N media of N levels expanding machine output, and it is conveyed to the in line output end discharge of the cooling.
7. gas preparation system according to claim 1 or 2, it is characterised in that the heat energy utilization pipeline includes cooling
In line pipeline;The in line cryogenic fluid memory of cooling that the in line pipeline of the cooling includes being sequentially communicated, the N levels condenser and
Cool down in line output end;The N levels condenser is used to make the in line medium of cooling in the in line cryogenic fluid memory of cooling
The N level steam turbines or the N media of N levels expanding machine output are cooled down, and is conveyed to the in line output end discharge of the cooling;
The in line liquid pump of cooling is provided between the in line cryogenic fluid memory of the cooling and the N levels condenser, it is described cold
In line liquid pump is used to make the in line medium of cooling in the in line cryogenic fluid memory of cooling to be conveyed to the N levels condensation
Device;
Cooling memory outlet valve is provided between the in line cryogenic fluid memory of cooling and the in line liquid pump of cooling
Door.
8. gas preparation system according to claim 2, it is characterised in that including indirect heat exchange circulation loop;
The indirect heat exchange circulation loop include head and the tail be sequentially communicated the gas heat exchange system, indirect compression set,
Connect heat-exchanger rig and indirect choke valve;
The gas heat exchange system is used to make the indirect cyclic process medium of the indirect heat exchange circulation loop to cool down from the gas
The gas that pre-cooler flows to the gas piping outlet prepares medium;
The indirect heat exchange is used to make the N media of the heat energy utilization pipeline to cool down the indirect heat exchange circulation loop
Indirect cyclic process medium;The both ends of the gas pre-cooler or the N levels condenser and the both ends of the indirect heat exchange
It is respectively communicated with.
9. gas preparation system according to claim 2, it is characterised in that when N is the integer more than or equal to 1, the N levels
The N grade low-temp working medium memories for storing N media are provided between condenser and the N levels liquid pump;
N level condenser pumps are communicated between the N levels condenser and the N grade low-temps working medium memory;The N levels condenser pump is used for
The N media that order flows through the N levels condenser are inputted to the N grade low-temps working medium memory;
N level liquid separators are communicated between the N levels condenser and the N levels condenser pump;The N levels liquid separator is used for
The N media of the N circulation loops are separated, and the N media in liquid phase are conveyed to the N levels condenser pump;
N level memory inlet valves are provided between the N levels condenser pump and the N grade low-temps working medium memory;The N levels liquid
N level memory outlet valves are provided between body pump and the N grade low-temps working medium memory;
The N grade low-temps working medium memory is provided with N levels memory compensation air bleeding valve;The N levels memory compensation air bleeding valve is used
In compensating or discharge the medium in the N grade low-temps working medium memory;
The N levels condenser is provided with N levels condensation compensation air bleeding valve;The N levels condensation compensation air bleeding valve is used to compensate or arrange
Put the medium in the N levels condenser;
The N level steam turbines are integrated device with the N levels condenser, or the N levels expanding machine is with the N levels condenser
Integrated device;
The N circulation loops are provided with one or many places circulation loop drain valve, and the circulation loop drain valve is used to arrange
Put medium in the N circulation loops;
Heat-insulation layer is cased with outside the N level steam turbines or N levels expanding machine, the N levels condenser and N levels liquid pump;
When N is the integer more than or equal to 2, the boiling point of the N media is not higher than the boiling point of the N-1 media;
When N is integer more than or equal to 1, the N media be carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen, freon, methane,
Ethane, propane, natural gas, coal gas or biogas;
When N is the integer more than or equal to 1, the N level steam turbines or the N levels expanding machine drive connection N levels generator or drive
Dynamic power-equipment;
It is that boiling point is subzero gas under normal temperature and pressure that the gas, which prepares medium,;The gas prepares medium as air, natural
Gas, methane, ethane, oxygen, nitrogen, argon gas, hydrogen or helium;
Heat-insulation layer is cased with outside the gas pre-cooler;
Heat-insulation layer is cased with outside the gas compressing apparatus;
Heat-insulation layer is cased with outside the gas heat exchange system.
10. a kind of system to be generated electricity using air separation and Preparation equipment, it is characterised in that appoint including claim 1-9
Gas preparation system described in one.
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