CN105604620A - System and method for assisting organic Rankine cycles for refrigerating machine - Google Patents
System and method for assisting organic Rankine cycles for refrigerating machine Download PDFInfo
- Publication number
- CN105604620A CN105604620A CN201610130112.8A CN201610130112A CN105604620A CN 105604620 A CN105604620 A CN 105604620A CN 201610130112 A CN201610130112 A CN 201610130112A CN 105604620 A CN105604620 A CN 105604620A
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- China
- Prior art keywords
- internal combustion
- combustion engine
- heat exchanger
- refrigeration machine
- organic rankine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
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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
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/065—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle the combustion taking place in an internal combustion piston engine, e.g. a diesel engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B11/00—Compression machines, plants or systems, using turbines, e.g. gas turbines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a system and a method for assisting organic Rankine cycles for a refrigerating machine. The system comprises a first internal combustion engine, a heat exchanger, an expansion machine, a condenser, the refrigerating machine, a second internal combustion engine and a pump. The method includes that heat of exhaust air generated after the first internal combustion engine applies work outwardly and generates power is absorbed by the heat exchanger, then the exhaust air is exhausted, and working media heated by the heat exchanger apply work outwardly and generate power via the expansion machine and then return the heat exchanger via the condenser, the refrigerating machine driven by the second internal combustion engine and the pump. The system and the method have the advantages that the refrigerating machine driven by the internal combustion engine accesses the organic Rankine cycles, and accordingly the power generation capacity of the organic Rankine cycles can be improved.
Description
Technical field
The present invention relates to energy recycling device field, relate in particular to the auxiliary organic Rankine of a kind of refrigeration machine and followSystem and the method thereof of ring.
Background technology
Organic Rankine circulation (OrganicRankineCycle is called for short ORC) is with low-boiling-point organic compoundFor the Rankine cycle of working medium, mainly formed by heat exchanger, decompressor, condenser, pump four major parts. WorkPrinciple is that heat transferring medium absorbs heat in heat exchanger from residual heat stream, generates and has certain pressure and temperatureSteam, thereby steam enters decompressor, acting drives generator or other dynamic power machines, discharges from decompressorSteam is condensation in condenser, and finally by being pumped back to heat exchanger, so constantly circulation is gone down. Reduce exhaustTemperature is to improve a kind of effective means of the Rankine cycle thermal efficiency, but that the numerical value of final pressure and final temperature depends on is coldTemperature of Working in condenser, only depends on condenser to be difficult to significantly reduce.
In the place that produces natural gas, combustion gas is had more than needed and electric power shortage, therefore generates electricity at gas-firingBasis on coordinate organic Rankine cycle circulation, further utilize the heat energy of burning, improve generated energy. ButIf in the time that needs are met an urgent need further raising generated energy, if additionally purchase an internal combustion engine generating, improve temporarilyCost.
Summary of the invention
The object of the present invention is to provide that a kind of cost investment is few, can meet an urgent need promotes generated energy organic bright temporarilyAgree cycle generating system, utilize the combustion gas for carrying out natural gas liquefaction that gas field had just configured originally to driveMoving refrigeration machine, accesses the pipeline of oil-engine driven refrigeration machine in organic Rankine cycle, thereby realizes shortPhase promotes generated energy to meet the object of emergent demand.
The invention discloses the system of the auxiliary organic Rankine circulating generation of a kind of refrigeration machine, comprise the first internal combustion engine,Heat exchanger, decompressor, condenser, refrigeration machine, the second internal combustion engine, pump; The first internal combustion engine externally acting is sent outExhaust after electricity is discharged after heat exchanger is emitted heat, and the working medium of heat exchanger heating is through externally acting of decompressorAfter electricity, by condenser, the second oil-engine driven refrigeration machine be pumped back to heat exchanger.
A preferred embodiment according to the present invention, the system of the auxiliary organic Rankine circulating generation of described refrigeration machineThe exhaust of the second internal combustion engine after heat exchanger is emitted heat, discharge.
The method that the invention also discloses the auxiliary organic Rankine circulating generation of a kind of refrigeration machine, comprises the steps:After the exhaust heating of working medium in heat exchanger by the first internal combustion engine, generate the steaming with certain pressure and temperatureVapour, steam drives after decompressor acting generating through condenser condenses; By the second oil-engine driven refrigeration machinePipeline accesses in organic Rankine cycle, further reduces condensation temperature and the condensation of condenser press by refrigeration machinePower, to improve the Rankine cycle thermal efficiency, realizes the emergent object that promotes generated energy of short-term.
According to a preferred embodiment of the present invention, the side of the auxiliary organic Rankine circulating generation of refrigeration machine of the present inventionMethod, comprises the steps:
1) after the exhaust heating of the working medium in heat exchanger by the first internal combustion engine, generate have certain pressure andThe steam of temperature, steam drives after decompressor acting generating through condenser condenses;
2) pipeline of the second oil-engine driven refrigeration machine is accessed in organic Rankine cycle, pass through refrigeration machineFurther reduce condensation temperature and the condensing pressure of condenser, to improve the Rankine cycle thermal efficiency.
3) exhaust of the second internal combustion engine is introduced to heat exchanger and participated in organic Rankine circulation, with the further row of utilizationGas waste heat, realizes the emergent object that promotes generated energy of short-term.
The present invention's beneficial effect is compared with prior art: organic Rankine cycle generating system of the present invention becomesThis small investment, can meet an urgent need promotes generated energy temporarily, utilize that gas field just configured originally for carrying out skySo refrigeration machine of the gas driven of gas liquefaction, follows the pipeline access organic Rankine of oil-engine driven refrigeration machineIn ring, promote generated energy to meet the object of emergent demand thereby realize short-term. In the place that produces natural gas,Because combustion gas is more than needed, electric power lacks, and by system and method provided by the invention, can further utilize combustionThe heat energy of gas firing, improves generated energy, reduces costs.
Brief description of the drawings
Fig. 1 is the structural representation of the auxiliary organic Rankine cycle generating system of refrigeration machine;
Fig. 2 is the auxiliary organic Rankine circulation of refrigeration machine that further utilizes the I. C. engine exhaust that drives refrigeration machine workThe structural representation of electricity generation system.
In figure 1, the first internal combustion engine, 2, heat exchanger, 3, decompressor, 4, condenser, 5, refrigeration machine, 6,The second internal combustion engine, 7, pump.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, the invention provides the system of the auxiliary organic Rankine circulating generation of a kind of refrigeration machine, bagDraw together the first internal combustion engine 1, heat exchanger 2, decompressor 3, condenser 4, refrigeration machine 5, the second internal combustion engine 6,Pump 7; The exhaust that the first internal combustion engine 1 externally does work after generating is discharged after heat exchanger 2 is emitted heat, heat exchangeThe working medium that device 2 heats is externally done work after generating through decompressor 3, drives by condenser 4, the second internal combustion engine 6Moving refrigeration machine 5 and pump 7 are got back to heat exchanger 2.
The method of the auxiliary organic Rankine circulating generation of refrigeration machine of system shown in Figure 1: the second internal combustion engine 6 is drivenThe pipeline of moving refrigeration machine 5 accesses in organic Rankine cycle, further reduces condenser 4 by refrigeration machine 5Condensation temperature and condensing pressure, to improve the Rankine cycle thermal efficiency, realize the emergent generated energy that promotes of short-termObject.
As shown in Figure 2, as preferably, the exhaust of the second internal combustion engine 6 can also be emitted heat through heat exchanger 2After amount, discharge, further to utilize exhaust heat, realize the emergent object that promotes generated energy of short-term.
The method of the corresponding auxiliary organic Rankine circulating generation of refrigeration machine:
The pipeline of 1 refrigeration machine 5 that the second internal combustion engine 6 is driven accesses in organic Rankine cycle, by refrigerationMachine 5 further reduces condensation temperature and the condensing pressure of condenser 4, to improve the Rankine cycle thermal efficiency.
2 exhausts by the second internal combustion engine 6 are introduced heat exchangers and are participated in organic Rankines circulations, with the further row of utilizationGas waste heat, realizes the emergent object that promotes generated energy of short-term.
Claims (4)
1. a system for the auxiliary organic Rankine circulation of refrigeration machine, it is characterized in that comprising the first internal combustion engine (1),Heat exchanger (2), decompressor (3), condenser (4), refrigeration machine (5), the second internal combustion engine (6), pump (7);The gas exhaust piping of the first internal combustion engine (1) is connected with heat exchanger (2), and the first internal combustion engine (1) externally does workExhaust after generating is discharged after heat exchanger (2) is emitted heat, and the working medium of heat exchanger (2) heating is through expandingMachine (3) is externally after acting generating, the refrigeration machine (5) that drives by condenser (4), the second internal combustion engine (6),Pump (7) is got back to heat exchanger (2).
2. the system of the auxiliary organic Rankine circulation of a kind of refrigeration machine according to claim 1, its feature existsIn, the exhaust of described the second internal combustion engine (6) is discharged after heat exchanger (2) is emitted heat.
3. the refrigeration machine of system is assisted an organic Rankine round-robin method, its feature as claimed in claim 1Be to comprise the steps:
1) after the exhaust heating of the working medium in heat exchanger (2) by the first internal combustion engine (1), generation hasThe steam of certain pressure and temperature, steam drives after decompressor (3) acting generating through condenser (4) condensation;
2) pipeline of the refrigeration machine (5) the second internal combustion engine (6) being driven accesses in organic Rankine cycle,Further reduce condensation temperature and the condensing pressure of condenser (4) by refrigeration machine (5), organic to improveThe Rankine cycle thermal efficiency, realizes the emergent object that promotes generated energy of short-term.
4. the method that the auxiliary organic Rankine of the refrigeration machine of system circulates as claimed in claim 1 or 2,
It is characterized in that comprising the steps:
1) after the exhaust heating of the working medium in heat exchanger (2) by the first internal combustion engine (1), generation hasThe steam of certain pressure and temperature, steam drives after decompressor (3) acting generating through condenser (4) condensation;
2) pipeline of the refrigeration machine (5) the second internal combustion engine (6) being driven accesses in organic Rankine cycle,Further reduce condensation temperature and the condensing pressure of condenser (4) by refrigeration machine (5), organic to improveThe Rankine cycle thermal efficiency;
3) exhaust of the second internal combustion engine (6) is introduced to heat exchanger and participated in organic Rankine circulation, with further profitWith exhaust heat, further realize the emergent object that promotes generated energy of short-term.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130112.8A CN105604620B (en) | 2016-03-08 | 2016-03-08 | A kind of system and method for refrigeration machine auxiliary Organic Rankine Cycle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130112.8A CN105604620B (en) | 2016-03-08 | 2016-03-08 | A kind of system and method for refrigeration machine auxiliary Organic Rankine Cycle |
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| CN105604620A true CN105604620A (en) | 2016-05-25 |
| CN105604620B CN105604620B (en) | 2018-08-21 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804502A (en) * | 2006-01-23 | 2006-07-19 | 杜培俭 | Electricity generating, air conditioning and heating apparatus utilizing natural medium and solar energy or waste heat |
| CN102242697A (en) * | 2010-05-11 | 2011-11-16 | 北京智慧剑科技发展有限责任公司 | Distributed-type non-tracking solar power generation and poly-generation system |
| CN102777240A (en) * | 2012-08-14 | 2012-11-14 | 天津大学 | Diesel engine exhaust gas waste heat recovery system of two-stage Rankine cycle |
| CN104727871A (en) * | 2015-01-30 | 2015-06-24 | 华北电力大学 | Organic rankine cycle-stirling engine combined cycle power generation system and application method thereof |
-
2016
- 2016-03-08 CN CN201610130112.8A patent/CN105604620B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804502A (en) * | 2006-01-23 | 2006-07-19 | 杜培俭 | Electricity generating, air conditioning and heating apparatus utilizing natural medium and solar energy or waste heat |
| CN102242697A (en) * | 2010-05-11 | 2011-11-16 | 北京智慧剑科技发展有限责任公司 | Distributed-type non-tracking solar power generation and poly-generation system |
| CN102777240A (en) * | 2012-08-14 | 2012-11-14 | 天津大学 | Diesel engine exhaust gas waste heat recovery system of two-stage Rankine cycle |
| CN104727871A (en) * | 2015-01-30 | 2015-06-24 | 华北电力大学 | Organic rankine cycle-stirling engine combined cycle power generation system and application method thereof |
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| Publication number | Publication date |
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| CN105604620B (en) | 2018-08-21 |
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