CN105065110A - Organic rankine cycle and electric power dual-drive internal combustion engine pressurization system - Google Patents
Organic rankine cycle and electric power dual-drive internal combustion engine pressurization system Download PDFInfo
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- CN105065110A CN105065110A CN201510430191.XA CN201510430191A CN105065110A CN 105065110 A CN105065110 A CN 105065110A CN 201510430191 A CN201510430191 A CN 201510430191A CN 105065110 A CN105065110 A CN 105065110A
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Abstract
The invention relates to an organic rankine cycle and electric power dual-drive internal combustion engine pressurization system. The organic rankine cycle and electric power dual-drive internal combustion engine pressurization system is used for pressurizing air and conveying the air into an internal combustion engine and comprises a pressurizer device, an organic rankine cycle device, an electric power drive device, a drive control device and a controller. The pressurizer device is connected with an air inlet valve of an internal combustion engine cylinder and used for providing hyperbaric air for the internal combustion engine. The organic rankine cycle device is connected with an air outlet valve of the internal combustion engine cylinder and used for receiving heat energy of high-temperature exhaust gas as a heat source, and the heat energy is transferred to mechanical energy to be output. The electric power drive device is used for receiving the mechanical energy output by the organic rankine cycle device and transferring the mechanical energy to electric energy to be used for driving the pressurizer device. The drive control device is used for regulating and controlling the driving mode of the organic rankine cycle device and the electric power drive device to the pressurizer device. The controller is used for controlling the operation of the whole system. Compared with the prior art, the organic rankine cycle and electric power dual-drive internal combustion engine pressurization system has the advantages of being capable of saving energy, efficient, capable of improving the use ratio, simple in structure, adjustable in mode and the like.
Description
Technical field
The present invention relates to field of internal combustion engine, especially relate to the pressurization system of internal combustion engine of a kind of organic Rankine bottoming cycle and electric power Dual Drive.
Background technique
Current research shows, internal-combustion engine changes 30 ~ 45% (diesel engine) or 20 ~ 30% (petrol engines) that effective heat equivalent of work only accounts for fuel combustion heating value into.Waste heat of internal combustion engine energy accounts for 40% of fuel combustion total energy, wherein most of heat, enters in air with forms such as jacket water waste heat, lubricant oil waste heat and exhaust heats.If this part energy can be recycled, significant to the utilization ratio and minimizing environmental pollution improving engine power.
Increasing output power by the pressure improving internal combustion engine combustion supporting air, is a kind of effective measures improving engine performance.Improve air inlet pressure and can increase the air density entering cylinder, the air quantity entered in cylinder is increased.Can be burnt more fuel like this, thus can raise the efficiency significantly, can also improve the fuel economy of internal-combustion engine.By the driving mode of internal-combustion engine booster, pressurized machine mainly comprises mechanical supercharger, exhaust-gas turbocharger etc.
Engine driven supercharging drives air compressor to carry out supercharging by I. C. engine crankshaft by driving mechanism.Drive air compressing confidential consumption internal-combustion engine part power, and institute's wasted work rate increases sharply with the raising of boost pressure, this just makes motor fuel consumption increase.Therefore, this boosting method is only applicable to low pressure charging internal-combustion engine, seldom adopts at present.
The turbine that exhaust gas turbocharge utilizes the exhaust energy of internal-combustion engine to promote turbosupercharger rotates, and the turbine drives air compressor internal combustion engine coaxial with it provides the air of certain pressure.Generally speaking, to install additional after exhaust-gas turbocharger and on the basis of not increasing combustion engine discharge capacity, the power of internal-combustion engine and moment of torsion can be increased 20 ~ 30%.This is a kind of boosting method most widely used at present.But, still there is the deficiency of the following aspects in exhaust-gas turbocharger: first, when internal combustion engine start or engine conditions change, because the opening speed of throttle is slightly faster than the Power output speed of motor, so there is " turbo lag ", make the poor performance of internal-combustion engine variable parameter operation; Secondly, need after exhaust gases of internal combustion engines is discharged from cylinder to promote turbine, increase the resistance of tail gas in exhaust duct, add exhaust back pressure, the output performance of combustion motor is unfavorable; Finally, because the delivery temperature of exhaust gases of internal combustion engines is higher, turbine easily damages, and maintaining requires higher.
In order to improve the utilization ratio of exhaust gases of internal combustion engines waste thermal energy and make up the deficiency of engine driven supercharging and turbosupercharger, the present invention proposes a kind of new Dual Drive pressurization system of internal combustion engine.
Summary of the invention
Object of the present invention be exactly a kind of efficient energy-saving be provided in order to overcome defect that above-mentioned prior art exists, increase operation rate, structure is simple, the pressurization system of internal combustion engine of the organic Rankine bottoming cycle that mode is adjustable and electric power Dual Drive.
Object of the present invention can be achieved through the following technical solutions:
A pressurization system of internal combustion engine for organic Rankine bottoming cycle and electric power Dual Drive, in order to be transported in internal-combustion engine to air pressurized, this system comprises:
Supercharger arrangement: be connected with the intake valve of cylinder of internal-combustion engine, for internal-combustion engine provides high-pressure air;
Organic Rankine cycle devices: be connected with the exhaust valve of cylinder of internal-combustion engine, receives the heat energy of internal-combustion engine high-temperature tail gas as thermal source, and is translated into mechanical energy output;
Electric driver: receive the mechanical energy of organic Rankine cycle devices output and be translated into electric energy to drive supercharger arrangement;
Drive regulating controller: be connected with supercharger arrangement, organic Rankine cycle devices and electric driver respectively, in order to regulate and control organic Rankine cycle devices and electric driver to the driving mode of supercharger arrangement;
Be connected with supercharger arrangement, organic Rankine cycle devices, electric driver and driving regulating controller respectively, in order to regulate the operation of whole system.
Described supercharger arrangement comprises air filter, air compressor and cooler, described air filter, air compressor, cooler are connected successively with the intake valve of cylinder of internal-combustion engine, described air compressor is connected with organic Rankine cycle devices and electric driver respectively by driving regulating controller, and described air compressor is connected with controller.
Described organic Rankine cycle devices comprises liquid container, working medium pump, vaporizer, decompressor, condenser and cooling circuit, described liquid container, working medium pump, vaporizer, decompressor and condenser are in turn connected to form working medium circulation loop by stainless steel pipeline, ORC organic working medium is filled in described working medium circulation loop, the output terminal of described decompressor is connected with driving regulating controller, described condenser is connected with cooling circuit, described vaporizer is connected with the exhaust valve of cylinder of internal-combustion engine, and described working medium pump is connected with controller respectively with decompressor.
Described electric driver comprises generator, electric energy storage device, motor and motor speed regulator composition, described driving regulating controller, generator, electric energy storage device, motor are connected successively with air compressor, and described motor speed regulator is connected with controller respectively with generator.
The driving mode of described driving regulating controller comprises that organic Rankine cycle devices drives separately, electric driver drives separately and organic Rankine cycle devices and electric driver combination drive.
Described organic Rankine cycle devices is backheating type organic Rankine cycle devices, and described backheating type organic Rankine cycle devices inside is provided with regenerator.
The quantity of described air compressor is one or more, and multiple stage air compressor (2) is run by mode that is in parallel or series connection.
Compared with prior art, the present invention has the following advantages:
One, efficient energy-saving: the present invention is compared with the turbosupercharger of extensive use, improve Power output performance and the efficiency of internal-combustion engine, by " hesitation " that adopt the mode of ORC and the supercharging of electric power Dual Drive can avoid turbosupercharger, and can be reduced the delivery temperature of internal-combustion engine by ORC Systemic absorption tail gas waste heat, and then the running environment of follow-up equipment is optimized.
Two, increase operation rate: the power of the air compressor of ORC system of the present invention and electric power Dual Drive pressurization system of internal combustion engine is all from the tail gas waste heat energy of engine exhaust, achieve the comprehensive utilization of using waste heat from tail gas of internal combustion engine, and by series-parallel annexation and the method for operation of change air compressor, improve the comprehensive utilization ratio of internal-combustion engine total energy.
Three, structure is simple, and mode is adjustable: compact structure of the present invention, simple structure, and can regulate by driving regulating controller the mode driven, and can adapt to different driving requirements, have stronger practicability.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram of embodiment 1.
Fig. 2 is the system architecture schematic diagram of embodiment 2.
Fig. 3 is the structural representation that in the system of embodiment 3, air compressor is arranged in series.
Fig. 4 is the structural representation that in the system of embodiment 3, air compressor is arranged in parallel.
Fig. 5 be in the system of embodiment 3 air compressor by the series-parallel structural representation of valve transfer.
Wherein, 1, air filter, 2, air compressor, 3, cooler, 4, internal-combustion engine, 5, high-temperature tail gas, 6, drive regulating controller, 7, motor, 8, motor speed regulator, 9, electric energy storage device, 10, generator, 11, vaporizer, 12, decompressor, 13, condenser, 14, liquid container, 15, working medium pump, 16, cooling circuit, 17, regenerator, 18, the first valve, the 19, second valve, the 20, the 3rd valve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1:
As shown in Figure 1, in the present embodiment, internal-combustion engine 4 at least comprises a cylinder, and each cylinder has an intake valve and an exhaust valve at least, and the present invention mainly comprises supercharger arrangement, ORC device, electric driver, controller and drives regulating controller.
Supercharger arrangement mainly comprises air filter 1, air compressor 2 and air-cooler 3.First extraneous air by air filter 1 udst separation, is then compressed to certain pressure through air compressor 2, after air-cooler 3 cools, finally enters the cylinder of internal-combustion engine 4 for fuel combustion.
ORC device mainly comprises vaporizer 11, decompressor 12, condenser 13, working medium pump 15, liquid container 14 and cooling circuit 16, liquid organic working medium in liquid container 14 is pressed and delivered in vaporizer 11 by working medium pump 15, changed into the gaseous working medium of High Temperature High Pressure by high-temperature tail gas 5 heating that internal-combustion engine 4 is discharged, enter expansion work in decompressor 12 and external output mechanical energy, the weary gas of being discharged by decompressor 12 after acting to enter in condenser 13 cooled system condensing and becomes liquid refrigerant to enter liquid container 14 to store, complete a power cycle.
Electric driver comprises generator 10, electric energy storage device 9, motor 7 and motor speed regulator 8, the mechanical energy that the decompressor 12 of ORC system exports is run output electric energy through driving regulating controller 6 to regulate and control drive electrical generators 10 and is stored in electric energy storage device 9, and control driving mode by driving regulating controller 6, for air compressor 2 provides power according to the instruction of controller.
Regulating controller 6 is driven mainly to comprise clutch and speed changer.The decompressor 12 of ORC device drives air compressor 2 or generator 10 to run according to the instruction of controller by driving regulating controller 6.In addition, motor 7 also runs according to the order-driven air compressor 2 of controller.
In the present invention, the condenser 13 of ORC system can adopt cooling by water or Air flow, but the present invention is not limited thereto, and also can adopt other known type of cooling of related domain.
Embodiment 2:
As shown in Figure 2, ORC system of the present invention also can adopt backheating type, and in backheating type ORC system, regenerator 17 is mainly used for the exchange heat between overheated weary gas that vaporizer 11 import high-pressure liquid working medium and decompressor 12 discharge.On the one hand, the Subcoold temperature entering vaporizer 11 organic working medium can be reduced, reduce the load of vaporizer 11, on the other hand, the degree of superheat of the weary gas that decompressor 12 is discharged can be reduced, reduce the load of condenser 13, compared with simple type ORC system, backheating type ORC system can improve the thermal efficiency of ORC system.
All the other structures of the present embodiment are identical with embodiment 1.
Embodiment 3:
As shown in Figures 3 and 4, the air compressor 2 of supercharger arrangement can adopt two, operation is driven respectively by the decompressor 12 of ORC system and motor 10, these two air compressors 2 can adopt parallel form, also cascade can be adopted, two air compressors 2 of supercharger arrangement are according to cascade, the compression ratio of air can be improved, make the air density that enters in cylinder larger, air inflow is more, thus the more fuel that burns, optimize the output performance of internal-combustion engine 4, according to parallel form, two can have independently air intake filter and pipeline, drag losses during air inlet can be reduced, improve the intake efficiency of air compressor 2, but the present invention is not limited thereto and only have two air compressors 2, also can be some series connection or parallel connection.
As shown in Figure 5, the series connection of two air compressors 2 of supercharger arrangement or parallel form, the mode of valve can be adopted to switch, when the first valve 18 and the 3rd valve 20 are closed, when second valve 19 is opened, two air compressors 2 are exactly for internal-combustion engine provides the air of higher compression ratios with the form of series connection; When the first valve 18 and the 3rd valve 20 open the second valve 19 close time, two air compressors 2 adopt parallel form to be internal-combustion engine air feed, can be so just the air of its different compression ratio according to the operating conditions of internal-combustion engine, improve efficiency and the Economy of fuel combustion.
All the other structures of the present embodiment are identical with embodiment 1.
Claims (7)
1. a pressurization system of internal combustion engine for organic Rankine bottoming cycle and electric power Dual Drive, in order to be transported in internal-combustion engine (4) air pressurized, it is characterized in that, this system comprises:
Supercharger arrangement: be connected with the intake valve of internal-combustion engine (4) cylinder, for internal-combustion engine (4) provides high-pressure air;
Organic Rankine cycle devices: be connected with the exhaust valve of internal-combustion engine (4) cylinder, receives the heat energy of internal-combustion engine (4) high-temperature tail gas (5) as thermal source, and is translated into mechanical energy output;
Electric driver: receive the mechanical energy of organic Rankine cycle devices output and be translated into electric energy to drive supercharger arrangement;
Drive regulating controller (6): be connected with supercharger arrangement, organic Rankine cycle devices and electric driver respectively, in order to regulate and control organic Rankine cycle devices and electric driver to the driving mode of supercharger arrangement;
Controller: be connected with supercharger arrangement, organic Rankine cycle devices, electric driver and driving regulating controller (6) respectively, in order to regulate the operation of whole system.
2. the pressurization system of internal combustion engine of a kind of organic Rankine bottoming cycle according to claim 1 and electric power Dual Drive, it is characterized in that, described supercharger arrangement comprises air filter (1), air compressor (2) and cooler (3), described air filter (1), air compressor (2), cooler (3) is connected successively with the intake valve of internal-combustion engine (4) cylinder, described air compressor (2) is connected with organic Rankine cycle devices and electric driver respectively by driving regulating controller (6), described air compressor (2) is connected with controller.
3. the pressurization system of internal combustion engine of a kind of organic Rankine bottoming cycle according to claim 1 and electric power Dual Drive, it is characterized in that, described organic Rankine cycle devices comprises liquid container (14), working medium pump (15), vaporizer (11), decompressor (12), condenser (13) and cooling circuit (16), described liquid container (14), working medium pump (15), vaporizer (11), decompressor (12) and condenser (13) are in turn connected to form working medium circulation loop by stainless steel pipeline, ORC organic working medium is filled in described working medium circulation loop, the output terminal of described decompressor (12) is connected with driving regulating controller (6), described condenser (13) is connected with cooling circuit (16), described vaporizer (11) is connected with the exhaust valve of internal-combustion engine (4) cylinder, described working medium pump (15) is connected with controller respectively with decompressor (12).
4. the pressurization system of internal combustion engine of a kind of organic Rankine bottoming cycle according to claim 1 and electric power Dual Drive, it is characterized in that, described electric driver comprises generator (10), electric energy storage device (9), motor (7) and motor speed regulator (8) composition, described driving regulating controller (6), generator (10), electric energy storage device (9), motor (7) are connected successively with air compressor (2), and described motor speed regulator (8) is connected with controller respectively with generator (10).
5. the pressurization system of internal combustion engine of a kind of organic Rankine bottoming cycle according to claim 1 and electric power Dual Drive, it is characterized in that, the driving mode of described driving regulating controller (6) comprises that organic Rankine cycle devices drives separately, electric driver drives separately and organic Rankine cycle devices and electric driver combination drive.
6. the pressurization system of internal combustion engine of a kind of organic Rankine bottoming cycle according to claim 1 and electric power Dual Drive, it is characterized in that, described organic Rankine cycle devices is backheating type organic Rankine cycle devices, and described backheating type organic Rankine cycle devices inside is provided with regenerator (17).
7. the pressurization system of internal combustion engine of a kind of organic Rankine bottoming cycle according to claim 2 and electric power Dual Drive, it is characterized in that, the quantity of described air compressor (2) is one or more, and multiple stage air compressor (2) is run by mode that is in parallel or series connection.
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| CN201510430191.XA CN105065110A (en) | 2015-07-21 | 2015-07-21 | Organic rankine cycle and electric power dual-drive internal combustion engine pressurization system |
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| CN201510430191.XA CN105065110A (en) | 2015-07-21 | 2015-07-21 | Organic rankine cycle and electric power dual-drive internal combustion engine pressurization system |
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Cited By (5)
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| CN107620698A (en) * | 2017-10-16 | 2018-01-23 | 邯郸市恒工冶金机械有限公司 | A kind of turbo charged air compressor set |
| CN108374714A (en) * | 2018-01-08 | 2018-08-07 | 三峡大学 | A kind of Organic Rankine Cycle plenum internal-combustion engine system and method |
| CN108716435A (en) * | 2018-04-03 | 2018-10-30 | 天津大学 | A kind of pressurization system of internal combustion engine of integrated waste heat recovery |
| CN110274389A (en) * | 2019-06-14 | 2019-09-24 | 哈尔滨理工大学 | A kind of novel heat pump water heater suitable for ship |
| CN115077139A (en) * | 2021-03-16 | 2022-09-20 | 浙江雪波蓝科技有限公司 | Rankine-refrigeration cycle system and refrigerator car |
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| JP2003278598A (en) * | 2002-03-20 | 2003-10-02 | Toyota Motor Corp | Exhaust heat recovery method and device for vehicle using rankine cycle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107620698A (en) * | 2017-10-16 | 2018-01-23 | 邯郸市恒工冶金机械有限公司 | A kind of turbo charged air compressor set |
| CN108374714A (en) * | 2018-01-08 | 2018-08-07 | 三峡大学 | A kind of Organic Rankine Cycle plenum internal-combustion engine system and method |
| CN108716435A (en) * | 2018-04-03 | 2018-10-30 | 天津大学 | A kind of pressurization system of internal combustion engine of integrated waste heat recovery |
| CN110274389A (en) * | 2019-06-14 | 2019-09-24 | 哈尔滨理工大学 | A kind of novel heat pump water heater suitable for ship |
| CN115077139A (en) * | 2021-03-16 | 2022-09-20 | 浙江雪波蓝科技有限公司 | Rankine-refrigeration cycle system and refrigerator car |
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