CN108005743B - A kind of cold synergy of contraction with pressure without pump organic Rankine cycle power generation system - Google Patents
A kind of cold synergy of contraction with pressure without pump organic Rankine cycle power generation system Download PDFInfo
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- CN108005743B CN108005743B CN201711117623.7A CN201711117623A CN108005743B CN 108005743 B CN108005743 B CN 108005743B CN 201711117623 A CN201711117623 A CN 201711117623A CN 108005743 B CN108005743 B CN 108005743B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/18—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/24—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing liquids, e.g. containing solids, or liquids and elastic fluids
Abstract
The invention discloses a kind of cold synergy of contraction with pressure without pump organic Rankine cycle power generation system, supersonic speed stream-liquid two-phase flow jet pump, evaporator, expanding machine, evaporative condenser, expansion dropping equipment, cooler, throttle valve, compressor and generator including being interconnected so as to form Organic Rankine Cycle and Vapor Compression Refrigeration Cycle.The present invention replaces the working medium pump in conventional system using supersonic speed stream-liquid two-phase flow jet pump, and Organic Rankine Cycle is coupled with Vapor Compression Refrigeration Cycle by evaporative condenser, cooling load is provided using refrigeration cycle refrigerating capacity produced for Organic Rankine Cycle, reduce the condensation temperature of expander outlet lack of gas, the pressure energy of Vapor Compression Refrigeration Cycle circuit mesohigh liquid refrigerant is recycled using expansion dropping equipment simultaneously, and reduces the irreversible loss of refrigeration cycle side throttling process.
Description
Technical field
The present invention relates to low grade heat energies to utilize technical field, and in particular to a kind of cold synergy of contraction with pressure it is organic without pumping
Rankine cycle electricity generation system.
Background technique
Day with energy supply situation is becoming tight, and low-grade heat generation technology is receive more and more attention, wherein
Especially most paid attention to Organic Rankine Cycle.It is different from traditional thermal power plant, the Organic Rankine Cycle hair of low grade heat energy driving
Electric system efficiency is relatively relatively low, and wherein the electric energy of system production has significant portion to be consumed by working medium pump, especially middle-size and small-size to have
Machine Rankine cycle electricity generation system, since working medium flow is typically small, low efficiency, the power consumption accounting of working medium pump are bigger.Meanwhile working medium
Pump is generally required with electric drive, so that conventional organic Rankine cycle power generation system is required to be equipped with startup power supply.It therefore will be normal
Working medium pump in the Organic Rankine Cycle of rule removes and seeks its replacement device, is opened certainly with improving the net output work of system and realizing
It is dynamic, it is a hot issue of current ORC (Organic Rankine Cycle) research.
Patent of invention (ZL201410131588.4) discloses a kind of multistage gravity drive power circulation system, including first
Grade gravity drive power cycle unit and second level gravity drive power cycle unit, although the system realizes no pump operation,
But gravity drive power cycle unit is very big on system compactness influence, and different working medium require difference larger difference in height,
It is unfavorable for system assembles and allocation plan.
Document (driving of the low temperature exhaust heat such as Lu Huitong, Jiang Long, Wang Liwei without the instantaneous stable state power generation of pump Organic Rankine Cycle
Performance Journal of Chemical Industry and Engineering, 2017, DOI:10.11949/j.issn.0438-1157.20170405) it proposes a kind of organic without pumping
Rankine cycle system mainly includes two heat exchangers, expanding machine, generator and four-way valve, although the system successfully removes
Working medium pump, but two heat exchangers use the flow direction needed by four-way valve controlled medium alternately as evaporator and condenser
Realize switching, control is cumbersome, and is influenced very greatly by thermal inertia, and system effectiveness is lower.
Patent of invention (201410331353.X) discloses a kind of non-pump type organic Rankine power generation cycle method and apparatus, benefit
It is pressurizeed with the high temperature and pressure refrigerant vapor that boiler generates to liquid working substance, liquid working substance enters boiler by gravity, realizes
From the condenser of low pressure to the boiler trandfer fluid of high pressure, but the program is equally existed and is needed through control valve frequent switching come real
Now adjust the problem of working medium flows to.
In addition, maximum acting ability of the working medium in expanding machine largely takes in the case where Heat-Source Parameters are certain
Certainly in the back pressure of expander outlet, this pressure depends on condensation temperature again.Conventional ORC electricity generation system frequently with Natural Water or
Air as cooling medium, by and environment temperature influenced, these natural cooling media, which are difficult to generate electricity Organic Rankine Cycle, is
The condensation temperature of system is down to environment temperature or less.Therefore, by other reasonable technological means, Organic Rankine Cycle power generation is reduced
The condensation temperature of system is also an important directions of Organic Rankine Cycle research.
Summary of the invention
To solve the above-mentioned problems, the present invention provide a kind of cold synergy of contraction with pressure without pump Organic Rankine Cycle power generation system
System replaces the working medium pump in conventional system using supersonic speed stream-liquid two-phase flow jet pump, and will be organic bright by evaporative condenser
Agree circulation to couple with Vapor Compression Refrigeration Cycle, provides cooling using refrigeration cycle refrigerating capacity produced for Organic Rankine Cycle
Load, is effectively reduced the outlet pressure of expanding machine, to greatly improve the thermal efficiency of system.
To achieve the above object, the technical scheme is that
A kind of cold synergy of contraction with pressure without pump organic Rankine cycle power generation system, including Organic Rankine Cycle and vapour pressure
Contraction SAPMAC method is coupled by supersonic speed stream-liquid two-phase flow jet pump and evaporative condenser；
The Organic Rankine Cycle include supersonic speed stream-liquid two-phase flow jet pump, evaporator, expanding machine, evaporative condenser and
Generator；
The outlet of supersonic speed stream-liquid two-phase flow jet pump is connected with the cryogen liquid import of evaporator, the refrigerant vapor of evaporator
Outlet is connected with the steam-gas inlet of expanding machine, and the lack of gas outlet of expanding machine is connected with the cryogen import of evaporative condenser high temperature side,
The cryogen outlet of evaporative condenser high temperature side is connected with the driving fluid import of supersonic speed stream-liquid two-phase flow jet pump；
The Vapor Compression Refrigeration Cycle includes supersonic speed stream-liquid two-phase flow jet pump, expansion dropping equipment, cooler, section
Flow valve, evaporative condenser and compressor；
The outlet of supersonic speed stream-liquid two-phase flow jet pump is also connected by expanding dropping equipment with the cryogen import of cooler,
The cryogen outlet of cooler is connected with the import of throttle valve, the outlet and the cryogen import phase of evaporative condenser low temperature side of throttle valve
Even, the cryogen outlet of evaporative condenser low temperature side is connected with the import of compressor, the outlet of compressor and supersonic speed vehicle repair major
The working fluid import for flowing jet pump is connected；
Expanding machine, compressor and generator are used and are co-axially mounted.
Supersonic speed stream-liquid two-phase flow jet pump is sprayed using the high pressure superheater refrigerant vapor come out from compressor by supersonic speed
Supersonic jet is formed after mouth, the low pressure supercooled liquid working medium come out from evaporative condenser high temperature side enters under the injection of steam
In variable cross-section mixing chamber, supersonic speed stream-liquid two-phase flow is formed after two fluids directly contacts wherein, the constricted flow the case where
Lower generation condensation shock wave realizes pressure jump, obtains considerably beyond import steam pressure and temperature high pressure supercooled liquid placed in the middle
Working medium, its essence is the parts in the heat discharged using devaporation can be with can be converted into mechanical work to improve liquid refrigerant
Pressure.
Evaporative condenser is both the evaporator and Organic Rankine Cycle (high temperature of Vapor Compression Refrigeration Cycle (low temperature side)
Side) condenser, main function be realize using Vapor Compression Refrigeration Cycle production refrigerating capacity mentioned for Organic Rankine Cycle
For cooling load, it can be effectively reduced the condensation temperature of expander outlet lack of gas, to increase the expansion of Organic Rankine Cycle side
The inlet outlet pressure differential of machine improves the output power of expanding machine, and then improves the thermal efficiency of system.
Preferably, the expansion dropping equipment is the total flow expander installed with generator coaxle, and the cooler is cold
The outlet of condenser, supersonic speed stream-liquid two-phase flow jet pump is connected with the import of total flow expander, the outlet of total flow expander with it is cold
But the cryogen import of device is connected.
Total flow expander further makes full use of the height in supersonic speed stream-liquid two-phase flow injection pump discharge refrigeration cycle
The pressure for pressing through cold liquid refrigerant can be carried out power generation, while reduce the irreversible damage of Vapor Compression Refrigeration Cycle side throttling process
It loses.
Preferably, the expansion dropping equipment is vortex tube, and the expanding machine uses gas compensating type expanding machine, the cooler
Outlet for liquid cooling appts, supersonic speed stream-liquid two-phase flow jet pump is connected with the import of vortex tube, the superheated vapor outlet of vortex tube
It is connected with the tonifying Qi import of expanding machine, the subcooled liquid outlet of vortex tube is connected with the cryogen import of cooler.
Vortex tube uses adverse current type structure, and using its Energy separation performance, supersonic speed stream-liquid two-phase flow sprays pump discharge system
High pressure supercooled liquid working medium in SAPMAC method circuit is depressured after vortex tube import entrance by expansion, some refrigerant vaporization,
Vehicle repair major mixture is generated, high speed rotation flows wherein, and the superheated vapor isolated enters gas compensating type expanding machine acting hair
Electricity, while reducing the irreversible loss of Vapor Compression Refrigeration Cycle side throttling process.
Preferably, the evaporator, cooler and evaporative condenser can use shell-and-tube, falling film type or plate-type heat-exchange
Device, is also possible to the heat exchanger of other forms, and heat-transfer pipe can be common tube and be also possible to enhanced tube.
Preferably, the expanding machine can use turbo-expander, screw expander or scroll expander, be also possible to it
The expanding machine of its form.
Preferably, the total flow expander can use full-flow screw expander, be also possible to the suitable height of other forms
Press the expanding machine of subcooled liquid expansion work.
Preferably, the generator can use synchronous generator, can also use asynchronous generator.
Preferably, the connection type between the various parts is metallic conduit connection.
Preferably, the cycle fluid of the system uses environmental-friendly low-boiling-point organic compound, such as hydrochlorofluorocarbons (such as R123
With R141b etc.), hydrofluorocarbon (such as R134a and R245fa), fluoroolefins (such as R1233zd (E) and R1234yf) and hydrocarbonization
It closes object (such as R290 and R600a), low boiling point inorganic matter such as natural refrigerant NH can also be used3、CO2And N2O etc..
Compared with prior art, the present invention the beneficial effect is that:
(1) present invention is not only solved using supersonic speed stream-liquid two-phase flow jet pump instead of the working medium pump in conventional system
In addition the starting problem for the areas without electricity organic rankine cycle system for having determined remote also undertakes the effect of regenerator, recycled pressure
The thermal energy of contracting machine outlet superheat steam, is more fully utilized low-grade energy.
(2) present invention passes through supersonic speed stream-liquid two-phase flow jet pump and evaporative condenser for Organic Rankine Cycle and steam
Refrigeration cycle coupling is compressed, cooling load is provided using the refrigerating capacity of refrigeration cycle for Organic Rankine Cycle, significantly reduces
The condensation temperature of expanding machine lack of gas, to improve the thermal efficiency of system.
(3) present invention introduces total flow expanders, further make full use of supersonic speed stream-liquid two-phase flow injection pump discharge refrigeration
The pressure of circulation loop mesohigh supercooled liquid working medium can be carried out power generation, can simultaneously be effectively reduce Vapor Compression Refrigeration Cycle
The irreversible loss of side throttling process.
(4) supersonic speed stream-liquid two-phase flow is sprayed the height in pump discharge refrigeration cycle using vortex tube and pressed through by the present invention
Cold liquid refrigerant is separated, and the superheated vapor of generation enters the acting power generation of gas compensating type expanding machine, is can simultaneously be effectively reduced
The irreversible loss of Vapor Compression Refrigeration Cycle side throttling process.
(5) present invention is directed to different operating conditions, especially heating source operating condition, can be by adjusting supersonic speed vapour-liquid two
Mutually stream sprays the split ratio of pump discharge two-way working medium to realize optimized operation, so that the operation model of system high efficiency runing adjustment
It encloses wider.
Detailed description of the invention
Fig. 1 is that the process without pump organic Rankine cycle power generation system of the cold synergy of contraction with pressure of the embodiment of the present invention one is shown
It is intended to.
Fig. 2 is that the process without pump organic Rankine cycle power generation system of the cold synergy of contraction with pressure of the embodiment of the present invention two is shown
It is intended to.
Specific embodiment
The contents of the present invention are described in further details with reference to the accompanying drawings and detailed description.
Embodiment 1:
Fig. 1 is the flow diagram of one embodiment of the present invention, a kind of cold synergy of contraction with pressure of the present embodiment
Without pump organic Rankine cycle power generation system, including supersonic speed stream-liquid two-phase flow jet pump 1, evaporator 2, expanding machine 3, evaporative condenser
Device 4, total flow expander 5, cooler 6, throttle valve 7, compressor 8 and generator 9, wherein expanding machine 3 uses conventional expanding machine,
Cooler 6 is conventional condenser.The outlet 1c of supersonic speed stream-liquid two-phase flow jet pump 1 points are two-way, all the way cryogen liquid and evaporation
The cryogen liquid import 2a of device 2 is connected, and the refrigerant vapor outlet 2b of evaporator 2 is connected with the steam-gas inlet 3a of expanding machine 3, expanding machine
3 lack of gas outlet 3b is connected with the 4a of 4 high temperature side cryogen import of evaporative condenser, the cryogen outlet of 4 high temperature side of evaporative condenser
4b is connected with the driving fluid import 1b of supersonic speed stream-liquid two-phase flow jet pump 1；Another way cryogen liquid and total flow expander 5 into
Mouth 5a is connected, and the outlet 5b of total flow expander 5 is connected with the cryogen import 6a of cooler 6, the cryogen outlet 6b and section of cooler 6
The import 7a for flowing valve 7 is connected, and the outlet 7b of throttle valve 7 is connected with the cryogen import 4c of 4 low temperature side of evaporative condenser, evaporative condenser
The cryogen outlet 4d of 4 low temperature side of device is connected with the import 8a of compressor 8, the outlet 8b and supersonic speed stream-liquid two-phase flow of compressor 8
The working fluid import 1a of jet pump 1 is connected.Expanding machine 3 passes through shaft coupling and compressor 8, generator 9 and total flow expander 5
It is coaxially connected.
For below using R1233zd (E) as cycle fluid, to a kind of cold synergy of contraction with pressure of the present embodiment without pump
Organic Rankine cycle power generation system working principle is illustrated:
The high-pressure liquid R1233zd (E) flowed out from supersonic speed stream-liquid two-phase flow jet pump 1 is divided into two-way, all the way liquid
R1233zd (E) enters in evaporator 2, enters expanding machine after being heated to saturated vapor or superheated vapor by external low-grade heat source
3, R1233zd (E) steams expansion work in expanding machine 3 drives the compressor 8 and generator 9 that are connected with it by shaft coupling to transport
Turn, the lack of gas after acting enter evaporative condenser 4 from high temperature side；Another way liquid R1233zd (E) enters total flow expander 5,
Wherein expansion work drives the operating power generation of generator 9, enters cooler 6 after being expanded to condensing pressure, cooling by outside wherein
Medium such as Natural Water or air are cooled to liquid refrigerant, and subsequent liquid R1233zd (E) is through 7 reducing pressure by regulating flow of throttle valve to vapor pres- sure
Enter evaporative condenser 4 from low temperature side after power, wherein heat absorption evaporation, generates refrigerating capacity and come 4 high temperature side of evaporative condenser
R1233zd (E) lack of gas of self-expanding machine 3 are cooled to saturated liquid or supercooled liquid working medium, the low temperature side of evaporative condenser 4
R1233zd (E) is sucked after becoming saturated vapor by compressor 8, and overheat R1233zd (E) steam that compressor 8 exports is by workflow
Body import 1a enters in supersonic speed stream-liquid two-phase flow jet pump 1, and supersonic jet, evaporative condenser are formed after superonic flow nozzzle
The low-pressure liquid R1233zd (E) of 4 high temperature side of device enters supersonic speed vapour-liquid through driving fluid import 1b under the ejector action of steam
In the variable cross-section mixing chamber of two phase flow jet pump 1, supersonic speed stream-liquid two-phase flow is formed after two fluids directly contacts wherein,
It generates condensation shock wave in the case where constricted flow, realizes pressure jump, obtain evaporating pressure in one pressure ratio evaporator 2 slightly
It after high supercooled liquid R1233zd (E), is flowed out from the outlet of supersonic speed stream-liquid two-phase flow jet pump 1, is divided into two-way difference again
Into in evaporator 2 and total flow expander 5, system circulation is formed.
Embodiment 2:
Fig. 2 is the flow diagram of another embodiment of the invention, and the present embodiment is a kind of compression of flow-tube type band
Freeze synergy without pump organic Rankine cycle power generation system, including supersonic speed stream-liquid two-phase flow jet pump 1, evaporator 2, expanding machine
3, evaporative condenser 4, vortex tube 10, cooler 6, throttle valve 7, compressor 8 and generator 9, wherein expanding machine 3 uses tonifying Qi
Formula expanding machine, cooler 6 are liquid cooling appts.The outlet 1c of supersonic speed stream-liquid two-phase flow jet pump 1 point is two-way, all the way cryogen liquid with
The cryogen liquid import 2a of evaporator 2 is connected, and the refrigerant vapor outlet 2b of evaporator 2 is connected with the main steam-gas inlet 3a of expanding machine 3；
Another way cryogen liquid is connected with the import 10a of vortex tube 10, the tonifying Qi of superheated vapor the outlet 10b and expanding machine 3 of vortex tube 10
Import 3c is connected, and the subcooled liquid outlet 10c of vortex tube 10 is connected with the cryogen import 6a of cooler 6, and the cryogen of cooler 6 goes out
Mouth 6b is connected with the import 7a of throttle valve 7, and the outlet 7b of throttle valve 7 is connected with the cryogen import 4c of 4 low temperature side of evaporative condenser,
The cryogen outlet 4d of 4 low temperature side of evaporative condenser is connected with the import 8a of compressor 8, the outlet 8b and supersonic speed vapour of compressor 8
The working fluid import 1a of liquid two-phase jet pump 1 is connected；Lack of gas outlet 3b and 4 high temperature side of evaporative condenser of expanding machine 3
Cryogen import 4a is connected, the flow type pump with injection of cryogen the outlet 4b and supersonic speed stream-liquid two-phase flow jet pump 1 of 4 high temperature side of evaporative condenser
Body import 1b is connected.Expanding machine 3 is coaxially connected by shaft coupling and compressor 8 and generator 9.
Below equally using R1233zd (E) as cycle fluid for, to a kind of flow-tube type contraction with pressure of the present embodiment
Cold synergy is illustrated without pump organic Rankine cycle power generation system working principle:
The high-pressure liquid R1233zd (E) flowed out from supersonic speed stream-liquid two-phase flow jet pump 1 is divided into two-way, all the way liquid
R1233zd (E), which enters in evaporator 2, to be heated to after saturated vapor or superheated vapor by external low-grade heat source from main steam-gas inlet
3a enters expanding machine 3；Another way liquid R1233zd (E) enters vortex tube 10, expanded decompression, low-boiling R1233zd (E)
Vaporization generates gas-fluid two-phase mixture, flows wherein by high speed rotation, superheated vapor and subcooled liquid is isolated, from whirlpool
R1233zd (E) superheated vapor isolated in flow tube 10 enters expanding machine 3 by tonifying Qi import 3c；R1233zd (E) steam is swollen
Expansion work drives the compressor 8 being connected with it by shaft coupling and the operating of generator 9 in swollen machine 3, and the lack of gas after acting are from height
Warm side enters evaporative condenser 4；R1233zd (E) subcooled liquid isolated from vortex tube 10 enters cooler 6, wherein
Liquid refrigerant with high supercooling degree, subsequent liquid are further cooled to by external cooling medium such as Natural Water or air
R1233zd (E) enters evaporative condenser 4 from low temperature side after 7 reducing pressure by regulating flow to evaporating pressure of throttle valve, and heat absorption is steamed wherein
Hair, generate R1233zd (E) lack of gas by 4 high temperature side of evaporative condenser from expanding machine 3 of refrigerating capacity be cooled to saturated liquid or
Supercooled liquid working medium, the R1233zd (E) of 4 low temperature side of evaporative condenser are sucked after becoming saturated vapor by compressor 8, compressor 8
R1233zd (E) superheated vapor of outlet is entered in supersonic speed stream-liquid two-phase flow jet pump 1 by working fluid import 1a, by super
Supersonic jet is formed after sonic nozzle, the low-pressure liquid R1233zd (E) of 4 high temperature side of evaporative condenser makees in the injection of steam
With in the lower variable cross-section mixing chamber for entering supersonic speed stream-liquid two-phase flow jet pump 1 through driving fluid import 1b, two plume wherein
Body forms supersonic speed stream-liquid two-phase flow after directly contacting, and condensation shock wave is generated in the case where constricted flow, realizes pressure jump,
After obtaining the slightly higher supercooled liquid R1233zd (E) of evaporating pressure in one pressure ratio evaporator 2, from supersonic speed vehicle repair major
The outlet 1c outflow for flowing jet pump 1, is divided into two-way again and respectively enters in evaporator 2 and vortex tube 10, form system circulation.
Simply to illustrate that technical concepts and features of the invention, its purpose is allows in the art above-described embodiment
Those of ordinary skill cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all
It is the equivalent changes or modifications that the essence of content according to the present invention is made, should be covered by the scope of protection of the present invention.
Claims (3)
1. a kind of cold synergy of contraction with pressure without pump organic Rankine cycle power generation system, which is characterized in that followed including organic Rankine
Ring and Vapor Compression Refrigeration Cycle are coupled by supersonic speed stream-liquid two-phase flow jet pump (1) and evaporative condenser (4)；
The Organic Rankine Cycle include supersonic speed stream-liquid two-phase flow jet pump (1), evaporator (2), expanding machine (3), evaporation it is cold
Condenser (4) and generator (9)；
The outlet (1c) of supersonic speed stream-liquid two-phase flow jet pump (1) is connected with the cryogen liquid import (2a) of evaporator (2), evaporator
(2) refrigerant vapor outlet (2b) is connected with the steam-gas inlet (3a) of expanding machine (3), the lack of gas of expanding machine (3) export (3b) and
The cryogen import (4a) of evaporative condenser (4) high temperature side is connected, the cryogen outlet (4b) of evaporative condenser (4) high temperature side and Supersonic
The driving fluid import (1b) of fast stream-liquid two-phase flow jet pump (1) is connected；
The Vapor Compression Refrigeration Cycle include supersonic speed stream-liquid two-phase flow jet pump (1), expansion dropping equipment, cooler (6),
Throttle valve (7), evaporative condenser (4) and compressor (8)；
The outlet (1c) of supersonic speed stream-liquid two-phase flow jet pump (1) also by expansion dropping equipment and cooler (6) cryogen into
Mouth (6a) is connected, and the cryogen outlet (6b) of cooler (6) is connected with the import (7a) of throttle valve (7), the outlet of throttle valve (7)
(7b) is connected with the cryogen import (4c) of evaporative condenser (4) low temperature side, and the cryogen of evaporative condenser (4) low temperature side exports (4d)
It is connected with the import (8a) of compressor (8), the outlet (8b) of compressor (8) and the work of supersonic speed stream-liquid two-phase flow jet pump (1)
Make fluid inlet (1a) to be connected；
Expanding machine (3), compressor (8) and generator (9) are used and are co-axially mounted.
2. the cold synergy of contraction with pressure according to claim 1 without pump organic Rankine cycle power generation system, which is characterized in that
The expansion dropping equipment be with generator (9) coaxial mounted total flow expander (5), the cooler (6) be condenser, surpass
The outlet (1c) of velocity of sound stream-liquid two-phase flow jet pump (1) is connected with the import (5a) of total flow expander (5), total flow expander (5)
Outlet (5b) be connected with the cryogen import (6a) of cooler (6).
3. the cold synergy of contraction with pressure according to claim 1 without pump organic Rankine cycle power generation system, which is characterized in that
The expansion dropping equipment is vortex tube (10), and the expanding machine (3) uses gas compensating type expanding machine, and the cooler (6) is liquid
Cooler, the outlet (1c) of supersonic speed stream-liquid two-phase flow jet pump (1) are connected with the import (10a) of vortex tube (10), vortex tube
(10) superheated vapor outlet (10b) is connected with the tonifying Qi import (3c) of expanding machine (3), the subcooled liquid outlet of vortex tube (10)
(10c) is connected with the cryogen import (6a) of cooler (6).
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| CN109973166B (en) * | 2019-04-08 | 2024-01-26 | 天津大学 | System and method for improving power generation capacity of organic Rankine cycle |
| CN111561366A (en) * | 2019-04-25 | 2020-08-21 | 李华玉 | Single working medium steam combined cycle |
| WO2021042646A1 (en) * | 2019-09-02 | 2021-03-11 | 李华玉 | Single working medium steam combined cycle |
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