CN206668348U - A kind of reheat-type organic Rankine cycle engine residual neat recovering system - Google Patents
A kind of reheat-type organic Rankine cycle engine residual neat recovering system Download PDFInfo
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- CN206668348U CN206668348U CN201720148113.5U CN201720148113U CN206668348U CN 206668348 U CN206668348 U CN 206668348U CN 201720148113 U CN201720148113 U CN 201720148113U CN 206668348 U CN206668348 U CN 206668348U
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- magnetic valve
- evaporator
- working medium
- organic rankine
- engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses a kind of reheat-type organic Rankine cycle engine residual neat recovering system, belong to heat recovery technology field.The system is mainly made up of engine, the organic rankine cycle system of changeable pattern and control system.The system realizes the conversion between basic organic Rankine bottoming cycle and reheat-type organic Rankine bottoming cycle, so as to better profit from engine exhaust heat energy by the opening and closing of different valves.Compared to existing technical scheme, the utility model has the characteristics that compact-sized, easily controllable, waste heat energy utilization ratio is high, is with a wide range of applications.
Description
Technical field
A kind of reheat-type organic Rankine cycle engine residual neat recovering system is the utility model is related to, for reclaiming engine
Exhaust heat energy, belong to heat recovery technology field.
Background technology
With the increase of car ownership, the energy that automobile is consumed is continuously increased.In terms of the thermal balance of engine, it is used for
The power of power output typically only accounts for the 30%-45% (diesel engine) or 20%-30% (gasoline engine) of fuel combustion total amount of heat.
Waste heat is mainly released in air by exhaust and cooling medium.Therefore, if can be started by effective approach to the part
Machine waste heat is recycled, and by the energy-conserving and environment-protective to automobile, the fuel utilization ratio for improving automobile has great importance.
The method for discarding waste heat currently with internal combustion engine mainly has:Adopted using the thermo-electric generation of high exhaust temperatures, using waste heat
Warm, the adsorption type heat pump refrigeration using waste heat, the organic Rankine bottoming cycle generating using waste heat or output useful work.At present, utilize
The conversion efficiency of thermoelectric generation is low, can't be practical.Engine can be preferably utilized in the winter time using residual-heat heating
Waste heat, but can not utilize waste heat in other seasons.Using the current efficiency highest of the heat recovery technology of organic Rankine bottoming cycle, use
For organic rankine cycle system at present also in conceptual phase, current pattern seldom considers Vehicular internal combustion engine work working conditions change scope
Extensively, the characteristics of duration is long, maximally utilizing for afterheat of IC engine can be realized under a certain operating mode, and in other operating points then
It is difficult to accomplish.
Utility model content
The purpose of this utility model is to provide for a kind of reheat-type organic Rankine cycle engine residual neat recovering system.Should
System is mainly made up of engine (1), the organic rankine cycle system of changeable pattern and control system.The system passes through difference
The opening and closing of valve, the conversion between basic organic Rankine bottoming cycle and reheat-type organic Rankine bottoming cycle is realized, so as to more preferable land productivity
With engine exhaust heat energy.
To achieve these goals, the utility model employs following technical scheme.
A kind of reheat-type organic Rankine cycle engine residual neat recovering system and control method, the system include engine,
The organic rankine cycle system and control system of changeable pattern.
The organic rankine cycle system of described changeable pattern, including evaporator, expanding machine one, generator one, reheating
Device, expanding machine two, generator two, condenser, fluid reservoir and working medium pump.
Described control system includes control unit, exhaust gas temperature sensor, evaporator outlet exhaust gas temperature sensor, electricity
Magnet valve one, magnetic valve two, magnetic valve three, magnetic valve four, magnetic valve five, magnetic valve six and the circuit for connecting these parts.
Annexation:Engine is connected by pipeline with evaporator, and exhaust gas temperature sensor and electromagnetism are provided with pipeline
Valve two;Magnetic valve one is in parallel with magnetic valve two, and magnetic valve one is arranged on the exhaust passage of engine;Liquid work in fluid reservoir
Matter enters in evaporator after working medium pump pressurizes, and subsequent working medium, which enters in expanding machine one, promotes its output shaft rotation, so as to drive
Generator one is generated electricity.Complete to flow back to fluid reservoir after the condensed device of working medium after acting is condensed into saturated liquid.Waste gas passes through
The tail gas outlet passageway of evaporator is discharged, and evaporator outlet exhaust gas temperature sensor and magnetic valve three are provided with passage;Expansion
Magnetic valve six is provided with pipeline between machine one and condenser;Working medium admission line one end of reheater is placed in the He of expanding machine one
Between magnetic valve six, magnetic valve five is provided with working medium admission line;The tail gas admission line of reheater and the tail gas of evaporator
Outlet pipe is connected, and magnetic valve four is provided with the tail gas admission line of reheater;The working medium outlet pipe of reheater successively with
Expanding machine two connects with condenser;Expanding machine two and generator two are coaxially connected;Control unit is used for the opening and closing of control valve.
The course of work:
According to the difference of engine, different preset temperature T1, T2 can be set as signal, electricity is judged by control unit
Whether magnet valve switches on and off.
Engine start, when exhaust gas temperature sensor detects that delivery temperature is less than preset temperature T1, control unit is sent
Instruction:Magnetic valve one is connected, so that motor exhaust is directly discharged into air by exhaust channel;Work as exhaust gas temperature sensor
When detecting that delivery temperature is higher than preset temperature T1, control unit sends instruction:Magnetic valve two is connected, disconnects magnetic valve one, hair
Motivation tail gas enters in evaporator to be exchanged heat with the working medium by working medium pump (10) pressurization.
When engine operation condition is complicated and changeable, evaporator outlet exhaust gas temperature sensor detects that evaporator discharge goes out
When mouth exhaust temperature is less than preset temperature T2, for the exhaust by evaporator without value is reused, control unit sends finger
Order:Magnetic valve three, magnetic valve six are connected, now basic organic rankine cycle system is started working;Saturated liquid work in fluid reservoir
Matter enters in evaporator the exhaust heat for absorbing engine after working medium pump pressurizes, and subsequently enters and its output is promoted in expanding machine one
Axle rotates, so as to drive generator one to be generated electricity.Complete to flow back to after the condensed device of working medium after acting is condensed into saturated liquid
Fluid reservoir.
When engine operation condition is complicated and changeable, evaporator outlet exhaust gas temperature sensor detects that evaporator discharge goes out
When mouth exhaust temperature is higher than preset temperature T2, has by the exhaust of evaporator and reuse value, control unit sends instruction:
Magnetic valve three, magnetic valve six are disconnected, connects magnetic valve four, magnetic valve five, now reheat-type organic rankine cycle system starts work
Make;In fluid reservoir saturation liquid refrigerant after working medium pump pressurizes enter evaporator in absorb engine exhaust heat, working medium with
Enter afterwards in expanding machine one and promote its output shaft rotation, so as to drive generator one to be generated electricity, from expanding machine one out
Working medium enters the engine exhaust come out in reheater with evaporator and exchanged heat, and subsequent working medium, which enters in expanding machine two, to be promoted
Its output shaft rotation, so as to drive generator two to be generated electricity, complete the condensed device of working medium after acting and be condensed into saturated liquid
After flow back to fluid reservoir;Now, waste gas is discharged by the gas exhaust piping of reheater.
Beneficial effect
1. the utility model can be filled using the changeable pattern of basic organic Rankine bottoming cycle and reheat-type organic Rankine bottoming cycle
Divide the exhaust energy for utilizing and being discharged during internal combustion engine.
Compared with single basic organic rankine cycle system, when evaporator discharge outlet exhaust temperature is higher than a certain specific
During temperature T2, have by the exhaust lack of gas of evaporator and reuse value, the utility model can be by controlling different valves
Opening and closing, realize and changed from basic organic Rankine bottoming cycle to reheat-type organic Rankine bottoming cycle, so as to better profit from engine exhaust
Waste heat energy.
Compared with single reheat-type organic rankine cycle system, the utility model allow system delivery temperature be in compared with
Basic organic Rankine bottoming cycle is first carried out during low temperature, when detecting evaporation installed in evaporator outlet exhaust gas temperature sensor (13)
Device air exit exhaust temperature is higher than a certain specified temp T2, by controlling the opening and closing of different valves, realizes by substantially organic bright
Agree circulation to change to reheat-type organic Rankine bottoming cycle, widen the temperature range that system can work.
2. utilizing cogeneration, the output of internal combustion engine useful work is improved, in the case of same power output, improves fuel oil
Economy.
3. reducing heat dissipation capacity of the internal combustion engine to atmospheric environment, greenhouse effects are slow down, improve the comfortable of urban environment
Degree.
Brief description of the drawings
Fig. 1 is a kind of reheat-type organic Rankine cycle engine residual neat recovering system schematic diagram.
In figure:1- engines;2- evaporators;3- expanding machines one;4- generators one;5- reheaters;6- expanding machines two;7- is sent out
Motor two;8- condensers;9- fluid reservoirs;10- working medium pumps;11- control units;12- exhaust gas temperature sensors;13- evaporators go out
Mouth exhaust gas temperature sensor;14- magnetic valves one;15- magnetic valves two;16- magnetic valves three;17- magnetic valves four;18- magnetic valves five;
19- magnetic valves six.
Embodiment
In order to which the technical characteristics of the utility model, purpose and effect are more clearly understood, it is detailed now to compare accompanying drawing
Illustrate specific implementation method of the present utility model.
A kind of reheat-type organic Rankine cycle engine residual neat recovering system and control method, the system include engine 1,
The organic rankine cycle system and control system of changeable pattern.
The organic rankine cycle system of described changeable pattern, including evaporator 2, expanding machine 1, generator 1, again
Hot device 5, expanding machine 26, generator 27, condenser 8, fluid reservoir 9 and working medium pump 10.
Described control system includes control unit 11, exhaust gas temperature sensor 12, evaporator outlet delivery temperature sensing
Device 13, magnetic valve 1, magnetic valve 2 15, magnetic valve 3 16, magnetic valve 4 17, magnetic valve 5 18, magnetic valve 6 19 and company
Connect the circuit of these parts.
Annexation:Engine 1 is connected by pipeline with evaporator 2, and the He of exhaust gas temperature sensor 12 is provided with pipeline
Magnetic valve 2 15;Magnetic valve 1 is in parallel with magnetic valve 2 15, and magnetic valve 1 is arranged on the exhaust passage of engine 1;Storage
Liquid refrigerant in flow container 9 enters in evaporator 2 after the pressurization of working medium pump 10, and subsequent working medium, which enters in expanding machine 1, promotes it
Output shaft rotation, so as to drive generator 1 to be generated electricity.Complete the condensed device 8 of working medium after acting and be condensed into saturated liquid
After flow back to fluid reservoir 9.Waste gas is discharged by the tail gas outlet passageway of evaporator 2;Evaporator outlet exhaust temperature is provided with passage
Spend sensor 13 and magnetic valve 3 16;Magnetic valve 6 19 is provided with pipeline between expanding machine 1 and condenser 8;Reheater 5
Working medium admission line one end be placed between expanding machine 1 and magnetic valve 6 19, magnetic valve five is provided with working medium admission line
18;The tail gas admission line of reheater 5 connects with the tail gas outlet pipe of evaporator 2, is set on the tail gas admission line of reheater 5
It is equipped with magnetic valve 4 17;The working medium outlet pipe of reheater 5 is connected with expanding machine 26 and condenser 8 successively;Expanding machine 26 with
Generator 27 is coaxially connected;Control unit 11 is used for the opening and closing of control valve.
The course of work:
According to the difference of engine, different preset temperature T1, T2 can be set as signal, judged by control unit 11
Whether magnetic valve switches on and off.
Engine 1 starts, when exhaust gas temperature sensor 12 detects that delivery temperature is less than preset temperature T1, control unit 11
Send instruction:Magnetic valve 1 is connected, so that motor exhaust is directly discharged into air by exhaust channel;Work as delivery temperature
When sensor 12 detects that delivery temperature is higher than preset temperature T1, control unit 11 sends instruction:Magnetic valve 2 15 is connected, is disconnected
Magnetic valve 1, motor exhaust enters in evaporator 2 to be exchanged heat with the working medium pressurizeed by working medium pump 10.
When engine operation condition is complicated and changeable, evaporator outlet exhaust gas temperature sensor 13 detects evaporator discharge
When outlet exhaust temperature is less than preset temperature T2, the exhaust by evaporator without value is reused, send out by control unit 11
Go out instruction:Magnetic valve 3 16, magnetic valve 6 19 are connected, now basic organic rankine cycle system is started working;Fluid reservoir 9 is embezzled
Enter the exhaust heat that engine is absorbed in evaporator 2 after the pressurization of working medium pump 10 with liquid refrigerant, subsequently enter expanding machine 1
Middle its output shaft rotation of promotion, so as to drive generator 1 to be generated electricity.The condensed device 8 of working medium after acting is completed to be condensed into
Fluid reservoir 9 is flowed back to after saturated liquid.
When engine operation condition is complicated and changeable, evaporator outlet exhaust gas temperature sensor 13 detects evaporator discharge
When outlet exhaust temperature is higher than preset temperature T2, has by the exhaust of evaporator and reuse value, control unit 11 is sent
Instruction:Magnetic valve 3 16, magnetic valve 6 19 are disconnected, connects magnetic valve 4 17, magnetic valve 5 18, now reheat-type organic Rankine follows
Loop system is started working;Saturation liquid refrigerant enters after the pressurization of working medium pump 10 in fluid reservoir 9 absorbs engine in evaporator 2
Exhaust heat, working medium, which subsequently enters, promotes its output shaft rotation in expanding machine 1, so as to drive generator 1 to be generated electricity, from
Working medium in expanding machine 1 out enters the engine exhaust come out in reheater 5 with evaporator 2 and exchanged heat, subsequent work
Matter, which enters in expanding machine 26, promotes its output shaft rotation, so as to drive generator 27 to be generated electricity, completes the working medium after acting
Condensed device 8 flows back to fluid reservoir 9 after being condensed into saturated liquid;Now, waste gas is discharged by the gas exhaust piping of reheater 5.
Claims (1)
- A kind of 1. reheat-type organic Rankine cycle engine residual neat recovering system, it is characterised in that:Including engine (1), can cut The organic rankine cycle system and control system of mold changing formula;The organic rankine cycle system of described changeable pattern, including evaporator (2), expanding machine one (3), generator one (4), Reheater (5), expanding machine two (6), generator two (7), condenser (8), fluid reservoir (9) and working medium pump (10);Described control system includes control unit (11), exhaust gas temperature sensor (12), evaporator outlet delivery temperature sensing Device (13), magnetic valve one (14), magnetic valve two (15), magnetic valve three (16), magnetic valve four (17), magnetic valve five (18), electromagnetism Valve six (19) and the circuit for connecting these parts;Annexation:Engine (1) is connected by pipeline with evaporator (2), and exhaust gas temperature sensor (12) is provided with pipeline With magnetic valve two (15);Magnetic valve one (14) is in parallel with magnetic valve two (15), and magnetic valve one (14) is arranged on the row of engine (1) On gas passage;Liquid refrigerant in fluid reservoir (9) enters in evaporator (2) after working medium pump (10) pressurization, and subsequent working medium enters Its output shaft rotation is promoted in expanding machine one (3), so as to drive generator one (4) to be generated electricity;Complete the working medium warp after acting Condenser (8) flows back to fluid reservoir (9) after being condensed into saturated liquid;Waste gas is discharged by the tail gas outlet passageway of evaporator (2), is led to Evaporator outlet exhaust gas temperature sensor (13) and magnetic valve three (16) are provided with road;Expanding machine one (3) and condenser (8) it Between pipeline on be provided with magnetic valve six (19);Working medium admission line one end of reheater (5) is placed in expanding machine one (3) and electromagnetism Between valve six (19), magnetic valve five (18) is provided with working medium admission line;The tail gas admission line and evaporator of reheater (5) (2) tail gas outlet pipe is connected, and magnetic valve four (17) is provided with the tail gas admission line of reheater (5);Reheater (5) Working medium outlet pipe is connected with expanding machine two (6) and condenser (8) successively;Expanding machine two (6) with generator two (7) is coaxial connects Connect;Control unit (11) is used for the opening and closing of control valve.
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CN201720148113.5U CN206668348U (en) | 2017-02-20 | 2017-02-20 | A kind of reheat-type organic Rankine cycle engine residual neat recovering system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106837440A (en) * | 2017-02-20 | 2017-06-13 | 北京理工大学 | A kind of reheat-type organic Rankine cycle engine residual neat recovering system and control method |
CN116696531A (en) * | 2023-04-27 | 2023-09-05 | 浙江三可热交换系统有限公司 | Microchannel heat exchange system for train |
-
2017
- 2017-02-20 CN CN201720148113.5U patent/CN206668348U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106837440A (en) * | 2017-02-20 | 2017-06-13 | 北京理工大学 | A kind of reheat-type organic Rankine cycle engine residual neat recovering system and control method |
CN106837440B (en) * | 2017-02-20 | 2018-06-19 | 北京理工大学 | A kind of reheat-type organic Rankine cycle engine residual neat recovering system and control method |
CN116696531A (en) * | 2023-04-27 | 2023-09-05 | 浙江三可热交换系统有限公司 | Microchannel heat exchange system for train |
CN116696531B (en) * | 2023-04-27 | 2024-03-22 | 浙江三可热交换系统有限公司 | Microchannel heat exchange system for train |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20200220 |