CN102900511A - Exhaust energy recovery system capable of self-adapting to working conditions - Google Patents
Exhaust energy recovery system capable of self-adapting to working conditions Download PDFInfo
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- CN102900511A CN102900511A CN2012103508416A CN201210350841A CN102900511A CN 102900511 A CN102900511 A CN 102900511A CN 2012103508416 A CN2012103508416 A CN 2012103508416A CN 201210350841 A CN201210350841 A CN 201210350841A CN 102900511 A CN102900511 A CN 102900511A
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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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
An exhaust energy recovery system capable of self-adapting to working conditions belongs to the technical field of combustion engines and comprises a compressor, an engine, a turbine, an exhaust pipe, a valve, a heat exchanger, an expansion machine, a condenser, a pump and a generator. The valve is arranged on the exhaust pipe, a gas outlet of a gas inlet pipe of the heat exchanger, a gas inlet of an exhaust pipe of the heat exchanger, an inlet of an expansion machine inlet pipe and an outlet of an expansion machine outlet pipe are all connected with the heat exchanger. An opening degree of the valve can be adjusted according to the working conditions. Under the working conditions of middle-low speed high load, the valve in the exhaust pipe is opened, exhaust back pressure of the turbine is reduced, work-doing capacity of the turbine is improved, inlet gas quantity is large, and combustion is good. Under the conditions of middle-low speed low load and high speed, the valve in the exhaust pipe is closed, all exhaust gas flows out through the heat exchanger, and the expansion machine does work by using recovered heat of the heat exchanger to drive the generator to generate power. A thermodynamic cycle of the exhaust energy recovery is an organic rankine cycle. The exhaust energy recovery system capable of self-adapting to working conditions is reasonable in design, simple in structure and applicable to a turbocharging diesel engine with the generator.
Description
Technical field
What the present invention relates to is a kind of turbo charge system of field of internal combustion engine, particularly a kind of operating mode self adaption exhaust energy reclaiming system with generator.
Background technique
From the thermal equilibrium of present motor, the power that is used for power output only accounts for the 40%-50%(diesel engine of oil inflame total amount of heat) or the 25%-40%(petrol engine), other heat then is drained in the atmosphere environment via cooling system and waste gas.Therefore, recycling engine exhaust heat is the effective way that improves engine thermal efficiency.From the technological approaches of domestic and international exhaust energy utilization, have refrigeration, heating, thermo-electric generation, fuel catalytic reform, after connect power turbine, install the mode such as power circulating device additional.Because exhaust energy has the advantages that grade is low, recovery is relatively more difficult, so that still there is more problem in more existing technology, as utilize the energy conversion efficiency of thermo-electric generation not high, adopt relatively difficulty of fuel catalytic reformation technology implementation process, utilize utilizing waste heat for refrigeration and heating purposes more single, power turbine Applicable scope is narrower, after connect power circulating device complicated structure etc.
Find through the retrieval to the prior art document, China Patent Publication No. CN1363764A, denomination of invention: boosting system for steaming turbine of IC engine, this application discloses a kind of engine exhaust heat energy heating liquid water that utilizes, and the overheated steam after will heating is injected into the turbine promoting the circulation of qi vapour that advances and mixes to increase the turbine expansion merit, thereby reach the boosting system for steaming turbine that improves the engine section load performance, but because this boosting system for steaming turbine is also being worked in the low engine speed operating mode, thereby make the turbine exhaust back pressure higher, air input of engine by air is less.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of operating mode self adaption exhaust energy reclaiming system is provided, namely can reduce the turbine exhaust back pressure in the low speed operating mode and improve charge flow rate, can reclaim exhaust energy at high-speed working condition again.
The present invention is achieved through the following technical solutions, the present invention includes: the compressor air inlet machine pipe, gas compressor, engine air inlet tube, motor, engine exhaust pipe, turbine, turbine exhaust pipe, the first coupling shaft, the heat exchanger suction tude, the heat exchanger outlet pipe, outlet pipe, valve, heat exchanger, the decompressor outer pipe, the decompressor inlet duct, decompressor, generator, the second coupling shaft, condenser and pump, the air inlet/outlet of gas compressor respectively with the air outlet of compressor air inlet machine pipe, the suction port of engine air inlet tube is connected, the air inlet/outlet of motor respectively with the air outlet of engine air inlet tube, the suction port of engine exhaust pipe is connected, the air inlet/outlet of turbine respectively with the air outlet of engine exhaust pipe, the suction port of turbine exhaust pipe is connected, the suction port of compressor air inlet machine pipe is connected with atmosphere environment, gas compressor links to each other by the first coupling shaft is coaxial with turbine, the air outlet of turbine exhaust pipe, the suction port of heat exchanger suction tude, the suction port three of outlet pipe links together, valve installation is on outlet pipe, the air outlet of heat exchanger suction tude, the suction port of heat exchanger outlet pipe, the import of decompressor inlet duct, the outlet of decompressor outer pipe all is connected with heat exchanger, the import and export of decompressor respectively with the outlet of decompressor inlet duct, the import of decompressor outer pipe is connected, on the decompressor outer pipe, along the Working fluid flow direction condenser and pump are installed successively, the air outlet of outlet pipe, the air outlet of heat exchanger outlet pipe all is connected with atmosphere environment, and decompressor links to each other by the second coupling shaft is coaxial with generator.
In working procedure of the present invention, the fluid of the gas compressor of flowing through is air, and the fluid of the turbine of flowing through is engine exhaust, and the fluid of the decompressor of flowing through is that boiling temperature is that 20 degree are to the organic working medium of 50 degree.Valve opening can be regulated according to operating mode.In the middle low speed high load operating mode of motor, open the valve in the outlet pipe, the exhaust major part in the turbine exhaust pipe flows out from outlet pipe, the exhaust back pressure of turbine is lower, and turbine acting ability is stronger, and engine intake airflow is larger, thereby make the burning of motor better, oil consumption is lower; Middle low speed and load operating mode and high-speed working condition at motor, close the valve in the outlet pipe, exhaust in the turbine exhaust pipe all flows to behind heat exchanger in the heat exchanger outlet pipe, thereby makes decompressor reclaim a part of exhaust energy from heat exchanger, drives the generator generating.The electric energy that generator sends both can be used for driving the bent axle of motor, also can be used for driving other annexes of engine system or Full Vehicle System.In the present invention, the thermodynamic cycle of exhaust energy recovery is the organic Rankine circulation.
Compared with prior art, the present invention has following beneficial effect: the present invention is reasonable in design, and is simple in structure, is applicable to the turbo charge system with generator; The present invention can reclaim exhaust energy, can take into account again the various operating modes of motor.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is valve regulated policy map of the present invention;
Wherein: 1, compressor air inlet machine pipe, 2, gas compressor, 3, engine air inlet tube, 4, motor, 5, engine exhaust pipe, 6, turbine, 7, turbine exhaust pipe, the 8, first coupling shaft, 9, heat exchanger suction tude, 10, the heat exchanger outlet pipe, 11, outlet pipe, 12, valve, 13, heat exchanger, 14, the decompressor outer pipe, 15, expander inlet pipe, 16, decompressor, 17, generator, 18, the second coupling shaft, 19, condenser, 20, pump.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, the present embodiment provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment take technical solution of the present invention as prerequisite.
Embodiment
As shown in Figure 1, the present invention includes: compressor air inlet machine pipe 1, gas compressor 2, engine air inlet tube 3, motor 4, engine exhaust pipe 5, turbine 6, turbine exhaust pipe 7, the first coupling shaft 8, heat exchanger suction tude 9, heat exchanger outlet pipe 10, outlet pipe 11, valve 12, heat exchanger 13, decompressor outer pipe 14, decompressor inlet duct 15, decompressor 16, generator 17, the second coupling shaft 18, condenser 19 and pump 20, the air inlet/outlet of gas compressor 2 respectively with the air outlet of compressor air inlet machine pipe 1, the suction port of engine air inlet tube 3 is connected, the air inlet/outlet of motor 4 respectively with the air outlet of engine air inlet tube 3, the suction port of engine exhaust pipe 5 is connected, the air inlet/outlet of turbine 6 respectively with the air outlet of engine exhaust pipe 5, the suction port of turbine exhaust pipe 7 is connected, the suction port of compressor air inlet machine pipe 1 is connected with atmosphere environment, gas compressor 2 links to each other by the first coupling shaft is coaxial with turbine 6, the air outlet of turbine exhaust pipe 7, the suction port of heat exchanger suction tude 9, the suction port three of outlet pipe 11 links together, valve 12 is installed on the outlet pipe 11, the air outlet of heat exchanger suction tude 9, the suction port of heat exchanger outlet pipe 10, the import of decompressor inlet duct 15, the outlet of decompressor outer pipe all is connected with heat exchanger 13, the import and export of decompressor 16 respectively with the outlet of decompressor inlet duct 15, the import of decompressor outer pipe 14 is connected, on decompressor outer pipe 14, along the Working fluid flow direction condenser 19 and pump 20 are installed successively, the air outlet of outlet pipe 11, the air outlet of heat exchanger outlet pipe 10 all is connected with atmosphere environment, and decompressor 16 and generator are by 18 coaxial linking to each other of the second coupling shaft.
In working procedure of the present invention, the fluid of the gas compressor 2 of flowing through is air, and the fluid of the turbine 6 of flowing through is the exhaust of motor 4, and the fluid of the decompressor 16 of flowing through is that boiling temperature is that 20 degree are to the organic working medium of 50 degree.Valve opening can be regulated according to operating mode, as shown in Figure 2.Middle low speed high load operating mode at motor 4, open the valve 12 in the outlet pipe 11,7 exhaust major part flows out from outlet pipe 11 in the turbine exhaust pipe, the exhaust back pressure of turbine 6 is lower, the acting ability of turbine 6 is stronger, the charge flow rate of motor 4 is larger, thereby makes the burning of motor 4 better, and oil consumption is lower; Middle low speed and load operating mode and high-speed working condition at motor 4, close the valve 12 in the outlet pipe 11,7 exhaust all flows in the heat exchanger outlet pipe 10 behind heat exchanger 13 in the turbine exhaust pipe, thereby makes decompressor 16 reclaim a part of exhaust energy from heat exchanger 13, drives generator 16 generatings.The electric energy that generator 16 sends both can be used for driving the bent axle of motor 4, also can be used for driving other annexes of engine system or Full Vehicle System.In the present invention, the thermodynamic cycle of exhaust energy recovery is the organic Rankine circulation.Therefore, the present invention can reclaim exhaust energy, can take into account again the various operating modes of motor 4.
Claims (1)
1. operating mode self adaption exhaust energy reclaiming system, comprise: compressor air inlet machine pipe (1), gas compressor (2), engine air inlet tube (3), motor (4), engine exhaust pipe (5), turbine (6), turbine exhaust pipe (7) and the first coupling shaft (8), the air inlet/outlet of gas compressor (2) respectively with the air outlet of compressor air inlet machine pipe (1), the suction port of engine air inlet tube (3) is connected, the air inlet/outlet of motor (4) respectively with the air outlet of engine air inlet tube (3), the suction port of engine exhaust pipe (5) is connected, the air inlet/outlet of turbine (6) respectively with the air outlet of engine exhaust pipe (5), the suction port of turbine exhaust pipe (7) is connected, the suction port of compressor air inlet machine pipe (1) is connected with atmosphere environment, gas compressor (2) links to each other by the first coupling shaft is coaxial with turbine (6), characterized by further comprising heat exchanger suction tude (9), heat exchanger outlet pipe (10), outlet pipe (11), valve (12), heat exchanger (13), decompressor outer pipe (14), decompressor inlet duct (15), decompressor (16), generator (17), the second coupling shaft (18), condenser (19) and pump (20), the air outlet of turbine exhaust pipe (7), the suction port of heat exchanger suction tude (9), the suction port three of outlet pipe (11) links together, valve (12) is installed on the outlet pipe (11), the air outlet of heat exchanger suction tude (9), the suction port of heat exchanger outlet pipe (10), the import of decompressor inlet duct (15), the outlet of decompressor outer pipe (14) all is connected with heat exchanger (13), the import and export of decompressor (16) respectively with the outlet of decompressor inlet duct (15), the import of decompressor outer pipe (14) is connected, upward along the Working fluid flow direction condenser (19) and pump (20) are installed successively at decompressor outer pipe (14), the air outlet of outlet pipe (11), the air outlet of heat exchanger outlet pipe (10) all is connected with atmosphere environment, and decompressor (16) and generator are by coaxial linking to each other of the second coupling shaft (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103508416A CN102900511A (en) | 2012-09-19 | 2012-09-19 | Exhaust energy recovery system capable of self-adapting to working conditions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103508416A CN102900511A (en) | 2012-09-19 | 2012-09-19 | Exhaust energy recovery system capable of self-adapting to working conditions |
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| CN102900511A true CN102900511A (en) | 2013-01-30 |
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| CN2012103508416A Pending CN102900511A (en) | 2012-09-19 | 2012-09-19 | Exhaust energy recovery system capable of self-adapting to working conditions |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374710A (en) * | 2018-04-20 | 2018-08-07 | 福州大学 | A kind of vehicle exhaust turbine generator and its working method |
| CN112377280A (en) * | 2020-11-04 | 2021-02-19 | 哈尔滨工程大学 | Supercharged engine exhaust energy gradient utilization system and utilization method thereof |
| CN117072268A (en) * | 2023-10-12 | 2023-11-17 | 浙江博旭新能源科技有限公司 | Comprehensive utilization energy storage system and method for LNG cold energy and compressor inter-stage cooling water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363764A (en) * | 2001-01-02 | 2002-08-14 | 中国船舶重工集团公司第七研究院第七○三研究所 | Boosting system for steaming turbine of IC engine |
| CN102182583A (en) * | 2011-04-13 | 2011-09-14 | 北京理工大学 | Combined-type residual heat recovery system suitable for internal combustion engine |
-
2012
- 2012-09-19 CN CN2012103508416A patent/CN102900511A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363764A (en) * | 2001-01-02 | 2002-08-14 | 中国船舶重工集团公司第七研究院第七○三研究所 | Boosting system for steaming turbine of IC engine |
| CN102182583A (en) * | 2011-04-13 | 2011-09-14 | 北京理工大学 | Combined-type residual heat recovery system suitable for internal combustion engine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374710A (en) * | 2018-04-20 | 2018-08-07 | 福州大学 | A kind of vehicle exhaust turbine generator and its working method |
| CN108374710B (en) * | 2018-04-20 | 2023-04-28 | 福州大学 | Automobile tail gas turbine power generation device and working method thereof |
| CN112377280A (en) * | 2020-11-04 | 2021-02-19 | 哈尔滨工程大学 | Supercharged engine exhaust energy gradient utilization system and utilization method thereof |
| CN112377280B (en) * | 2020-11-04 | 2023-05-05 | 哈尔滨工程大学 | Exhaust energy cascade utilization system of supercharged engine and utilization method thereof |
| CN117072268A (en) * | 2023-10-12 | 2023-11-17 | 浙江博旭新能源科技有限公司 | Comprehensive utilization energy storage system and method for LNG cold energy and compressor inter-stage cooling water |
| CN117072268B (en) * | 2023-10-12 | 2024-01-19 | 浙江博旭新能源科技有限公司 | Comprehensive utilization energy storage system and method for LNG cold energy and compressor inter-stage cooling water |
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Application publication date: 20130130 |