CN102418623A - Rankine cycle system - Google Patents
Rankine cycle system Download PDFInfo
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- CN102418623A CN102418623A CN201110291631XA CN201110291631A CN102418623A CN 102418623 A CN102418623 A CN 102418623A CN 201110291631X A CN201110291631X A CN 201110291631XA CN 201110291631 A CN201110291631 A CN 201110291631A CN 102418623 A CN102418623 A CN 102418623A
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- rankine cycle
- electric power
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
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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
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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
- F01K15/00—Adaptations of plants for special use
- F01K15/02—Adaptations of plants for special use for driving vehicles, e.g. locomotives
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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
- 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
- F01K23/101—Regulating means specially adapted therefor
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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
- F01K25/02—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for the fluid remaining in the liquid phase
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Turbines (AREA)
Abstract
A Rankine cycle system (101) mounted on a vehicle has a Rankine cycle circuit (100) through which working fluid circulates, a power generator, a power storage and a controller. The Rankine cycle circuit includes a fluid expansion device (114), a fluid transferring device (111), first and second passages (1,2), a heater (112,113), a cooling device (115), a bypass passage (3) and a flow regulating valve (120). The bypass passage connects the first passage to the second passage. The flow regulating valve is provided in the bypass passage for opening and closing the bypass passage. The power generator (116) converts the work generated by the fluid expansion device into electric power. The controller (119) monitors charge rate of the electric power charged in the power storage and controls an operation of the flow regulating valve based on the monitored charge rate. The controller causes the flow regulating valve to be opened when the monitored charge rate is greater than a predetermined value.
Description
Technical field
The present invention relates to a kind of Rankine cycle system that comprises the Rankine cycle loop, and more specifically, relate to a kind of Rankine cycle system that is used for vehicle.
Background technique
Developed Rankine cycle (rankine cycle) loop that is used for the waste heat from the engine exhaust of vehicle is converted to the electric power of generator.This Rankine cycle loop has boiler, with constant voltage to liquid heat to produce superheated vapor; Expansion gear expands superheated vapor with adiabatic method, to produce electric power; Condenser makes the steam cooling of expansion with constant voltage, so that vapor condensation is become liquid; And pump, liquid is transported to boiler.
The open 2009-274513 of Japanese patent application has disclosed a kind of Rankine cycle loop that is used for vehicle.According to the above open middle Rankine cycle loop that discloses, come the live axle of coaxial arrangement pump and the output shaft of expansion gear via magnetic clutch, and will arrive the live axle of pump from the power transmission of internal-combustion engine through another magnetic clutch.Expansion gear is connected with generator through another magnetic clutch, and generator is connected with Vehicular battery.These three magnetic clutchs are meshed or are separated with the operation separately of control pump, expansion gear and generator, thus the operation in control Rankine cycle loop and the generation of electric power.
In this Rankine cycle loop on being installed in vehicle; When pump and expansion gear continuation operation; And therefore make the electric power of generator produce with Vehicular battery in the electrical power storage continuation time; If when filling the amount of power that the amount of power in battery consumes greater than vehicle, battery will be overcharged or charging excessively.In order to prevent that Vehicular battery from being overcharged, produce through making the magnetic clutch that is connected between expansion gear and the generator that the electric power of controlling generator take place to break away from, in the Rankine cycle loop in above-mentioned disclosing so that the operation of generation outage machine.Yet the vehicle with above-mentioned Rankine cycle loop needs large space to be used to install magnetic clutch.
The present invention aims to provide a kind of Rankine cycle system with Rankine cycle loop, the generation that it needs less installing space and can control electric power.
Summary of the invention
According to the present invention, the Rankine cycle system that is installed on the vehicle has Rankine cycle loop, generator, electric power storing device and the controller of working fluid through its circulation.This Rankine cycle loop comprises fluid expansion means, fluid conveying device, first passage, second channel, heater, cooling unit, bypass channel and throttle valve.Fluid expansion means expands to produce merit working fluid.Fluid conveying device transfers to fluid expansion means with working fluid.First passage is connected fluid conveying device with fluid expansion means.Second channel is connected fluid expansion means with fluid conveying device.Heater is located in the first passage and is used for heated working fluid.Cooling unit is located in the second channel and is used for the cooling work fluid.Bypass channel is connected first passage with second channel.Throttle valve is located in the bypass channel and is used to open and close bypass channel.Generator will convert electric power into by the merit that fluid expansion means produces.The electric power that the electric power storing device storage is transformed by generator.Controller monitoring fills the charge rate of the electric power in electric power storing device, and controls the operation of throttle valve based on the charge rate of monitoring.Controller opens throttle valve in the charge rate of monitoring during greater than predetermined value.
According to the following description that principle of the present invention is shown with by way of example, combines accompanying drawing to make, it is obvious that other aspects of the present invention and advantage will become.
Description of drawings
Through with reference to following description and accompanying drawing to current preferred implementation, can understand the present invention and purpose and advantage best, in the accompanying drawings:
Fig. 1 is the schematic representation that the configuration of Rankine cycle system according to a first advantageous embodiment of the invention is shown.
Fig. 2 is the schematic representation that the configuration of Rankine cycle system according to a second, preferred embodiment of the present invention is shown.
Embodiment
Below will Rankine cycle system according to a first advantageous embodiment of the invention be described with reference to Fig. 1.Below describe and to discuss the example that Rankine cycle system is used to have the vehicle of internal-combustion engine.With reference to Fig. 1, reference character 10 expressions are equipped with the motor of the Rankine cycle system 101 with Rankine cycle loop 100.
Therefore, expansion gear 114 drives so that live axle 114A rotates, thereby starts the operation of motor generator set 116.Therefore, motor generator set 116 is as being used to produce alternating electromotive force and the power generator that alternating electromotive force offers inverter 117 being carried out work.In this case, inverter 117 plays alternating electromotive force is transformed into direct current power and direct current power is offered the effect of the current transformer of Vehicular battery 118.Direct current power is stored in the Vehicular battery 118, perhaps with direct current power Vehicular battery 118 is charged.Motor generator set 116 is as generator, and Vehicular battery 118 is as electric power storing device.
When the time spent of doing of 117 inverters of inverter, the direct current power that is stored in the Vehicular battery 118 is converted into alternating electromotive force, and alternating electromotive force is provided for motor generator set 116.Thereby motor generator set 116 is operable as power generator.Passage 1A, 1B and 1C form the first passage 1 in Rankine cycle loop 100.Motor generator set 116, inverter 117 and Vehicular battery 118 form Rankine cycle system 101.
The operation of Rankine cycle system 101 according to a first advantageous embodiment of the invention below will be described.With reference to Fig. 1, in the operation period of motor 10, through the engine cooling water in the pump (not shown) transmission motor 10, in the cooling water passage 10A that connects motor 10 and cooling water boiler 112, to circulate.Then, carry out heat exchange between the refrigeration agent of engine cooling water in cooling water boiler 112 and circulation in Rankine cycle loop 100.Simultaneously, waste gas is discharged to the vent systems 30 from motor 10, and the part of the waste gas in the vent systems 30 flows through bypass channel 30A and then turn back to vent systems 30, and to discharge from vehicle, wherein, exhaust flow is crossed vent systems 30.Thereby, in exhaust boiler 113, carry out heat exchange between the refrigeration agent of waste gas that in bypass channel 30A, flows and circulation in Rankine cycle loop 100.
Be higher than predetermined temperature level when the temperature of the waste gas of discharging from motor 10 is elevated to, and the temperature of engine cooling water is elevated to also when being higher than another predetermined temperature level, starts Rankine cycle loop 100.At this moment, ECU 119 starts inverters 117 as inverter, carrying out work, so that be converted into alternating electromotive force offering power generator 116 from the direct current power of Vehicular battery 118, and motor generator set 116 is worked as power generator.
Cryogenic liquide refrigeration agent by pump 111 transmission flows to cooling water boiler 112 through passage 1A.In cooling water boiler 112, through with the heat exchange of the engine cooling water of circulation in cooling water boiler 112 with the agent of constant voltage heating and cooling, thereby make refrigeration agent evaporation.As a result, refrigeration agent becomes the gas-liquid mixture with high pressure and higher temperature.
The gas-liquid refrigeration agent flows out from cooling water boiler 112, and then gets in the exhaust boiler 113 through passage 1B.In exhaust boiler 113, through with flow through exhaust boiler 113 and temperature be higher than engine cooling water temperature waste gas heat exchange and with the agent of constant voltage heating and cooling, thereby make refrigeration agent evaporation.As a result, refrigeration agent becomes the superheated vapor with high temperature and high pressure.
Superheated vapor refrigerant then gets into expansion gear 114 from exhaust boiler 113 outflows and through passage 1C.In expansion gear 114, with adiabatic method the high-temperature high-pressure overheat steam refrigeration agent is expanded, and convert the expansion energy of refrigeration agent when reducing its pressure to rotational energy as regenerated energy.In expansion gear 114, drive other rotating drive power that receive above-mentioned rotational energy generation with the rotor (not shown) that rotates by motor generator set 116, and rotating drive power is sent to motor generator set 116 and live axle 111A through live axle 114A.ECU 119 switches to the operation as current transformer with inverter 117 as the operation of inverter, so that stop from Vehicular battery 118 to motor generator set 116 power supply.Through live axle 114A and live axle 111A, utilize from the rotating drive power-driven pump 111 of expansion gear 114 transmission; And drive genemotor 116 as power generator through live axle 114A, utilization from the rotating drive power of expansion gear 114 transmission, to produce alternating electromotive force.Inverter 117 converts the alternating electromotive force that motor generator set 116 produces to direct current power, and with direct current power Vehicular battery 118 is charged.
The refrigeration agent that flows through expansion gear 114 is discharged as the high-temperature low-pressure refrigeration agent from this expansion gear 114, and flows in the condenser 115 through passage 2A.In condenser 115, through with condenser 115 near surrounding atmosphere heat exchange and with the agent of constant voltage cooling refrigeration, thereby make it be condensed into liquid.Liquid refrigerant flows in the pump 111 through passage 2B, and then flows out from pump 111.Thereby refrigeration agent circulates in Rankine cycle loop 100.
In the operation period in Rankine cycle loop 100, ECU 119 continues the voltage of monitoring vehicle battery 118, and calculates the charge rate of Vehicular battery 118 according to the monitoring voltage of Vehicular battery 118.Charge rate means the ratio of the amount of power in amount of power of filling in battery and the battery that is full of electricity.Relation between the voltage of charge rate and Vehicular battery 118 is stored among the ECU 119 in advance, and ECU 119 calculates charge rate based on the monitoring voltage of Vehicular battery 118.
When the charge rate of Vehicular battery 118 greater than first predeterminated level when (or being less than 100%); Maybe when the residue charge rate through deducting the Vehicular battery 118 that charge volume calculates the total amount from charging during less than another predetermined value; ECU 119 makes throttle valve 120 open, to prevent that Vehicular battery 118 is after charge rate reaches 100% and continue to be recharged.When throttle valve 120 is opened; The part of being transmitted and flow through the refrigeration agent of passage 1A by pump 111 flows in the bypass channel 3 towards passage 2A; The feasible amount that flows through the refrigeration agent of passage 1A reduces, and the amount of the refrigeration agent that in expansion gear 114, flows correspondingly reduces.Because the reduction of the refrigeration agent among the passage 1C, the pressure of the refrigeration agent among the passage 1C reduces, and therefore the pressure difference between the entrance and exit of expansion gear 114 reduces.Because the regenerated energy that in expansion gear 114, produces as merit through the refrigeration agent that flows in the expansion gear 114 is expanded has reduced, also reduce so offer the amount of power of Vehicular battery 118.In this case, make throttle valve 120 open greatlyyer, with the Flow area of increase bypass channel 3, thereby the flow rate of the refrigeration agent of bypass channel 3 is flow through in increase, and the minimizing of the regenerated energy in the expansion gear 114 as a result is reinforced.
ECU 119 is the electrical load of monitoring vehicle constantly.Adjustment flows into the amount of the refrigeration agent in the expansion gear 114; The feasible operation of adjusting repression of swelling device 114 of opening through 119 pairs of throttle valve 120 of ECU; Thereby regulate the flow rate of the refrigeration agent that flows through bypass path 3, make the electric power that produces by motor generator set 116 be less than by the electrical load of the vehicle in ECU 119 monitoring.The charge rate of Vehicular battery 118 along with vehicle to the consumption of filling the electric power in Vehicular battery 118 and reduce.When charge rate reaches or during less than second predetermined value (second predetermined value is less than first predetermined value); Or increase to when reaching another predetermined value when the residue charge rate of Vehicular battery 118; ECU 119 closes throttle valve 120, thereby stops refrigeration agent flowing through bypass channel 3.
When opening throttle valve 120; Can adjust opening of throttle valve 120; Make the direct current power that provides to Vehicular battery 118 from inverter 117 be less than detected electrical load and more than the minimum electrical load of vehicle through monitoring; And be set up and be stored among the ECU 119 of each vehicle, the minimum electrical load of vehicle is to be merely the electrical load (comprising the petrolift and the fuel injection system that are used for motor 10) of operating vehicle under normal operation and needing.When the charge rate of Vehicular battery 118 reaches or during less than second predetermined value, ECU 119 closes throttle valve 120.
Under the situation that therefore throttle valve 120 is opened, refrigeration agent flows through bypass channel 3, make the flow rate of liquid refrigerant passes through expansion device 114 reduce, and the pressure difference between the entrance and exit of expansion gear 114 correspondingly reduces.Therefore, the amount of the regenerated energy that in expansion gear 114, produces as merit through allowing refrigeration agent in expansion gear 114, to expand reduces, and makes the generation minimizing of electric power of motor generator set 116, and the amount of power that offers Vehicular battery 118 also reduces.Can control the amount of power that will be provided for Vehicular battery 118 through opening of throttle valve 120 adjusted.Therefore, overcharging of the Vehicular battery 118 that has prevented to cause owing to the too much charging after reaching 100% charge rate.Therefore, can only control the generation of the electric power of motor generator set 116 with throttle valve 120, and can reduce the installing space that is used for Rankine cycle system 101 in the vehicle through bypass channel 3 is set.In first preferred embodiment of the present invention, preferably, should first predetermined value charge rate of Vehicular battery 118, that be used to open throttle valve 120 be arranged to the value near 100% (when Vehicular battery 118 is filled electricity).Therefore, the performance of Vehicular battery 118 maintains high relatively level.Similarly, should be preferably second predetermined value charge rate of Vehicular battery 118, that be used to close throttle valve 120 be arranged near 100%.
ECU 119 controls opening of throttle valve 120 based on the electrical load of the vehicle of being monitored by ECU 119, thereby the flow rate of the refrigeration agent of bypass path 3 is flow through in adjustment.Therefore, ECU 119 can control the generation of the electric power of motor generator set 116 in such a way, to suppress the increase of charge rate.Therefore, the generation of the electric power of control motor generator set 116 suppresses the further charging of Vehicular battery 118, thereby has prevented the increase of the charge rate of Vehicular battery 118 effectively, and the result prevents that Vehicular battery 118 from being overcharged.
ECU 119 is based under the normal conditions the required minimum electrical load of operation vehicle and controls opening of throttle valve 120, thereby the flow rate of the refrigeration agent of bypass channel 3 is flow through in adjustment.Therefore, control motor generator set 116 with the electric power that produces so that suppress the increase of the charge rate of Vehicular battery 118.Therefore, prevent the increase of the charge rate of Vehicular battery 118 effectively.ECU 119 can be under the situation of the electrical load of not monitoring processing through the storage of the minimum electrical load of vehicle is controlled opening of throttle valve 120 therein.
In the Rankine cycle loop 100 of Rankine cycle system 101, bypass channel 3 will be connected to second channel 2 at the first passage 1 between pump 111 and the cooling water boiler 112.If bypass channel 3 forms with minor diameter and throttle valve 120 is made into small size, then high-density refrigerant flow through bypass channel 3 before being heated, thereby guaranteed the sufficient flow rate of refrigeration agent.Therefore, can dwindle the size of bypass channel 3 and throttle valve 120.In the Rankine cycle loop 100 of Rankine cycle system 101, bypass channel 3 just first passage 1 is connected to the second channel 2 between expansion gear 114 and condenser 115.Therefore, the whole refrigeration agents in the second channel 2 flow through condenser 115 to be cooled, and this has alleviated the shortage of the cold refrigeration agent of mistake that is fed in the pump 111, and have therefore prevented the generation of the cavitation in pump 111.
Below will Rankine cycle system 201 according to a second, preferred embodiment of the present invention be described with reference to Fig. 2.As shown in Figure 2, the Rankine cycle system 201 of second preferred embodiment and the Rankine cycle system 101 of first preferred embodiment different are to be provided with the bypass channel 23 of walking around expansion gear in the Rankine cycle loop 200 of Rankine cycle system 201.Because Fig. 1 representes identical parts or element with the identical reference character among Fig. 2, therefore will omit second embodiment's these parts or the detailed description of element.
With reference to Fig. 2, bypass channel 23 is connected with the passage 1C of first passage 1 at one of which end place, and is connected with the passage 2A of second channel 2 at its other end place, so that only walk around expansion gear 114.Throttle valve 120 is located in the bypass channel 23, is used to open and close bypass channel 23, thus the Flow area of adjustment bypass channel 23.
In first preferred embodiment of Fig. 1; When becoming, the charge rate of Vehicular battery 118 operates so that throttle valve 120 when being opened, being flow through bypass channel 23 and arrives passage 2A from passage 1C with the refrigeration agent part that exhaust boiler 113 is heated into high-temperature high-pressure refrigerant by pump 111 compressions and the homogeneous solution-type reactor 112 that is cooled greater than first predeterminated level and 119 pairs of throttle valve 120 of ECU.Therefore, the amount that flows through the refrigeration agent of expansion gear 114 reduces, and the pressure difference between the entrance and exit of expansion gear 114 also reduces.Therefore, the regenerated energy that in expansion gear 114, is produced by the expansion of refrigeration agent reduces, and the amount of power that the result offers Vehicular battery 118 reduces.
Yet,, flow through passage 1A and 1B and the amount of the be cooled homogeneous solution-type reactor 112 and the refrigeration agent of exhaust boiler 113 heating does not reduce according to the Rankine cycle loop 200 of second preferred embodiment.Especially should not be heated under the situation of prescribing a time limit on surpassing arbitrarily being provided with of bypass channel 23 help to prevent the to be cooled excessive increase of the homogeneous solution-type reactor 112 and the temperature of the refrigeration agent of exhaust boiler 113 heating when being used in refrigeration agent in the Rankine cycle loop 200.
Those structures with the Rankine cycle system 101 of first preferred embodiment are identical with operation basically with operation for all the other structures of the Rankine cycle system 201 of second preferred embodiment, and therefore omitted its description.The Rankine cycle system 201 of second preferred embodiment provides and the similar advantage of aforesaid first preferred embodiment.
In Rankine cycle system 101 and 201; ECU 119 can operate and be used to control opening of throttle valve 120; Flow through the flow rate of the refrigeration agent of bypass channel 3 and 23 with adjustment, make the electric power that produces by motor generator set 116 corresponding with the electrical load of the vehicle of ECU 119 monitoring basically.In other words, when opening throttle valve 120, ECU 119 can control opening of throttle valve 120, makes the alternating electromotive force that offers Vehicular battery 118 from inverter 117 approach the electrical load by the vehicle of ECU 119 monitoring.Therefore, the charge rate of Vehicular battery 118 maintains near first predeterminated level, thereby has prevented the variation of the charge volume of Vehicular battery 118, and has improved the serviceability of Vehicular battery 118.
In the Rankine cycle system 101 and 201 according to first and second preferred embodiments, ECU119 can operate and be used for controlling opening of throttle valve 120 and make the alternating electromotive force that offers Vehicular battery 118 from inverter 117 approach to be stored in the minimum electrical load of the vehicle of ECU 119.Therefore, ECU 119 can control the amount of power that offers Vehicular battery 118, so that under the situation of the electrical load of monitoring vehicle not, prevent overcharging of Vehicular battery 118.
In Rankine cycle system 101 and 201 according to first and second preferred embodiments; Bypass channel 3 and 23 be not limited among Fig. 1 and Fig. 2 shown in Placement; Can adopt other modes to connect, as long as bypass channel 3 is connected first passage 1 with 23 with second channel 2.In Rankine cycle system 101 and 201, for example, a plurality of bypass channels can be set, as long as these bypass paths are connected first passage 1 with second channel 2 through combination bypass channel 3 and 23 according to first and second preferred embodiments.
In the Rankine cycle system 101 and 201 according to first and second preferred embodiments, pump 111, motor generator set 116 and expansion gear 114 are connected to each other, but the present invention is not limited to this configuration.Can only be that motor generator set 116 is connected to each other with expansion gear 114 as an alternative.In this configuration; The generation of the electric power through motor generator set 116 and the conversion of 117 pairs of electric power of inverter can offer Vehicular battery 118 as whole regenerated energy that merit produces with the expansion because of the refrigeration agent in the expansion gear 114 in expansion gear 114.The electric power direct control pump 111 that can provide through Vehicular battery 118, the power that perhaps provides through driving belt through motor 10 comes operating pumps 111.
In Rankine cycle system 101 and 201, can replace motor generator set 116 with alternator, and replace inverter 117 with regulator according to first and second preferred embodiments.In this configuration, can alternator be connected with pump 111 and expansion gear 114 through driving belt.
Claims (9)
1. Rankine cycle system (101,201) that is installed on the vehicle comprising:
Rankine cycle loop (100,200), working fluid is through its circulation, and said Rankine cycle loop (101,201) comprising:
Fluid expansion means (114), it expands to produce merit working fluid;
Fluid conveying device (111), it transfers to said fluid expansion means (114) with working fluid;
First passage (1), it is connected said fluid conveying device (111) with said fluid expansion means (114);
Second channel (2), it is connected said fluid expansion means (114) with said fluid conveying device (111);
Heater (112,113), it is located in the said first passage (1) with heated working fluid;
Cooling unit (115), it is located in the said second channel (2) with the cooling work fluid;
Bypass channel (3,23), it is connected said first passage (1) with said second channel (2), and
Throttle valve (120), it is located in the said bypass channel (3,23) to open and close said bypass channel (3,23);
Generator (116), it will change into electric power by the merit that said fluid expansion means (114) produces;
Electric power storing device (118), the electric power that its storage is transformed by said generator (116), and
Controller (119); The charge rate of the electric power in said electric power storing device (118) is filled in its monitoring; Said controller (119) is controlled the operation of throttle valve (120) based on charge rate, and said controller (119) reaches or throttle valve (120) opened during greater than first predetermined value in charge rate.
2. Rankine cycle system according to claim 1 (101,201); It is characterized in that: the electrical load of said controller (119) monitoring vehicle; And when opening said throttle valve (120), control opening of said throttle valve (120) based on the electrical load of the vehicle of being monitored; Thereby the flow rate of working fluid of said bypass channel (3,23) is flow through in adjustment, and said controller (119) is controlled the generation of the electric power of said generator (116) with the mode of the increase of the charge rate that suppresses said electric power storing device (118).
3. Rankine cycle system according to claim 1 (101,201); It is characterized in that: said controller (119) is based under the normal conditions the required minimum electrical load of operation vehicle and controls opening of said throttle valve (120) when opening said throttle valve (120); Thereby the flow rate of working fluid of said bypass channel (3,23) is flow through in adjustment, and said controller (119) is controlled the generation of the electric power of said generator (116) with the mode of the increase of the charge rate that suppresses said electric power storing device (118).
4. Rankine cycle system according to claim 1 (101,201); It is characterized in that: the electrical load of said controller (119) monitoring vehicle is also controlled opening of said throttle valve (120); And make the amount of power that offers said electric power storing device (118) less than the electrical load of the vehicle of being monitored and greater than operating the required minimum electrical load of vehicle under normal operation; Thereby the flow rate of working fluid of said bypass channel (3,23) is flow through in adjustment, and said controller (119) is controlled the generation of the electric power of said generator (116) with the mode of the increase of the charge rate that suppresses said electric power storing device (118).
5. Rankine cycle system according to claim 1 (101,201) is characterized in that: said controller (119) reaches or makes said throttle valve (120) close during less than second predetermined value in charge rate, and said second predetermined value is less than said first predetermined value.
6. according to any described Rankine cycle system (101,201) in the claim 1 to 5, it is characterized in that: said bypass channel (3) will be connected to said second channel (2) at the said first passage (1) between said fluid conveying device (111) and the said heater (112,113).
7. according to any described Rankine cycle system (101,201) in the claim 1 to 5, it is characterized in that: said bypass channel (23) will be connected to said second channel (2) at the said first passage (1) between said heater (112,113) and the said fluid expansion means (114).
8. according to any described Rankine cycle system (101,201) in the claim 1 to 5, it is characterized in that: said bypass channel (3,23) is connected to the said second channel (2) between said fluid expansion means (114) and said cooling unit (115) with said first passage (1).
9. according to any described Rankine cycle system (101,201) in the claim 1 to 5; It is characterized in that: said heater (112,113) is cooling water boiler and/or exhaust boiler; Wherein in said cooling water boiler, come heated working fluid, in said exhaust boiler, come heated working fluid through heat exchange with exhaust through heat exchange with engine cooling water.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-213459 | 2010-09-24 | ||
| JP2010213459A JP2012067683A (en) | 2010-09-24 | 2010-09-24 | Rankine cycle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102418623A true CN102418623A (en) | 2012-04-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110291631XA Pending CN102418623A (en) | 2010-09-24 | 2011-09-23 | Rankine cycle system |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120073295A1 (en) |
| EP (1) | EP2436888A1 (en) |
| JP (1) | JP2012067683A (en) |
| KR (1) | KR20120031464A (en) |
| CN (1) | CN102418623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352815A (en) * | 2013-02-26 | 2013-10-16 | 芦万里 | Innovative power output principle |
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| US8739531B2 (en) * | 2009-01-13 | 2014-06-03 | Avl Powertrain Engineering, Inc. | Hybrid power plant with waste heat recovery system |
| DE102010056273A1 (en) * | 2010-12-24 | 2012-06-28 | Robert Bosch Gmbh | Waste heat utilization system |
| DE112013003440B4 (en) * | 2012-07-09 | 2021-02-25 | Sanden Holdings Corporation | Device for utilizing waste heat from an engine |
| JP2014016115A (en) * | 2012-07-10 | 2014-01-30 | Toyota Industries Corp | Rankine cycle device |
| US9322300B2 (en) * | 2012-07-24 | 2016-04-26 | Access Energy Llc | Thermal cycle energy and pumping recovery system |
| EP2917513A2 (en) * | 2012-10-17 | 2015-09-16 | Norgren Limited | A waste heat recovery system comprising a bypass valve |
| JP5819806B2 (en) * | 2012-12-04 | 2015-11-24 | 株式会社神戸製鋼所 | Rotating machine drive system |
| US9540961B2 (en) | 2013-04-25 | 2017-01-10 | Access Energy Llc | Heat sources for thermal cycles |
| KR101567171B1 (en) * | 2013-12-27 | 2015-11-06 | 현대자동차주식회사 | System of recycling exhaust heat from internal combustion engine |
| CN105276856B (en) * | 2014-06-13 | 2019-05-28 | 松下知识产权经营株式会社 | Gas heat pump type air handling system |
| JP6418801B2 (en) * | 2014-06-17 | 2018-11-07 | サンデンホールディングス株式会社 | Waste heat recovery equipment for vehicles |
| WO2016032737A1 (en) * | 2014-08-28 | 2016-03-03 | Eaton Corporation | Optimized performance strategy for a multi-stage volumetric expander |
| JP6619979B2 (en) * | 2015-09-28 | 2019-12-11 | 株式会社Ｓｕｂａｒｕ | Charge control device |
| JP6610145B2 (en) * | 2015-10-07 | 2019-11-27 | いすゞ自動車株式会社 | Power generation device and method for controlling power generation device |
| WO2017145425A1 (en) * | 2016-02-26 | 2017-08-31 | 株式会社日立国際電気 | Power generation system, management device, and substrate processing device |
| US20180194196A1 (en) * | 2017-01-06 | 2018-07-12 | GM Global Technology Operations LLC | Systems and methods utilizing heat pumps to recover thermal energy from exhaust gas |
| CN106996315A (en) * | 2017-05-17 | 2017-08-01 | 苏州欧拉透平机械有限公司 | ORC expands machine driving generator and liquid pump energy-conservation unit |
| FR3080892B1 (en) * | 2018-05-04 | 2020-04-03 | Exoes | GEAR PUMP FOR FLUID CIRCULATION |
| JP7201492B2 (en) * | 2019-03-19 | 2023-01-10 | 株式会社Subaru | VEHICLE POWER SYSTEM, VEHICLE POWER CONTROL DEVICE, VEHICLE POWER CONTROL METHOD, AND PROGRAM |
| WO2020213773A1 (en) * | 2019-04-17 | 2020-10-22 | 비아이피 주식회사 | Ship power generation system using organic rankine cycle having improved power generation efficiency |
| JP7147718B2 (en) * | 2019-08-26 | 2022-10-05 | トヨタ自動車株式会社 | vehicle |
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- 2011-09-23 EP EP11182464A patent/EP2436888A1/en not_active Withdrawn
- 2011-09-23 CN CN201110291631XA patent/CN102418623A/en active Pending
- 2011-09-23 KR KR1020110096574A patent/KR20120031464A/en not_active Application Discontinuation
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| US20060112692A1 (en) * | 2004-11-30 | 2006-06-01 | Sundel Timothy N | Rankine cycle device having multiple turbo-generators |
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| CN103352815A (en) * | 2013-02-26 | 2013-10-16 | 芦万里 | Innovative power output principle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012067683A (en) | 2012-04-05 |
| KR20120031464A (en) | 2012-04-03 |
| EP2436888A1 (en) | 2012-04-04 |
| US20120073295A1 (en) | 2012-03-29 |
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Application publication date: 20120418 |