CN110617133A - Organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust - Google Patents
Organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust Download PDFInfo
- Publication number
- CN110617133A CN110617133A CN201910938256.XA CN201910938256A CN110617133A CN 110617133 A CN110617133 A CN 110617133A CN 201910938256 A CN201910938256 A CN 201910938256A CN 110617133 A CN110617133 A CN 110617133A
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- CN
- China
- Prior art keywords
- liquid storage
- storage tank
- working medium
- condenser
- turbo expander
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002918 waste heat Substances 0.000 title claims abstract description 19
- 238000001816 cooling Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 238000001704 evaporation Methods 0.000 claims abstract description 26
- 230000008020 evaporation Effects 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical group FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/08—Adaptations for driving, or combinations with, pumps
-
- 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
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
-
- 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
- F01K25/10—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 the vapours being cold, e.g. ammonia, carbon dioxide, ether
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to an organic Rankine cycle engine cooling system utilizing waste heat of automobile tail gas, which comprises an evaporation heat exchanger, a turbo expander, a condenser, a liquid storage tank, a working medium pump and a water pump, wherein the liquid storage tank is used for storing organic heat exchange working medium, the liquid outlet end of the liquid storage tank is sequentially communicated with the working medium pump, the evaporation heat exchanger and the turbo expander through pipelines, the heat-work conversion is carried out through the turbo expander, the circulating working medium finally flows back into the liquid storage tank through the pipelines, the condenser is arranged on the outer side of a pipeline between the turbo expander and the liquid storage tank, a condenser throttle valve is arranged on a pipeline connecting the condenser and the liquid storage tank, a liquid storage tank throttle valve is arranged on a pipeline connecting the liquid storage tank and the working medium pump, a working medium pump throttle valve is arranged on a pipeline connecting the working medium pump and the evaporation heat exchanger, the turbine expander is connected with the water pump through a rod piece.
Description
The technical field is as follows:
the invention relates to an organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust, and belongs to the field of automobile exhaust waste heat recovery.
Background art:
petroleum is a non-renewable fossil energy source, and with the increasing sales of automobile output, the consumption of petroleum resources is also increasing day by day, and the problem of energy conservation and emission reduction of automobiles is more and more emphasized. Effective recycling of waste gas waste heat and improvement of energy utilization efficiency are important methods for realizing energy conservation and emission reduction.
From the heat balance of the current internal combustion engine for the vehicle, the power for power output only accounts for 30% of the total heat of fuel combustion, and the rest energy is discharged in the form of high-temperature waste gas, so that a great deal of energy waste is caused. If the part of energy can be recycled, the method has important significance for improving the utilization rate of the fuel oil energy.
The invention content is as follows:
the invention provides an organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust, which aims to solve the problems in the prior art and has the advantages of reasonable structure and more sufficient waste heat recovery.
The technical scheme adopted by the invention is as follows: the utility model provides an organic rankine cycle engine cooling system of automobile exhaust waste heat utilization, includes evaporation heat exchanger, turbo expander, condenser, liquid storage pot, working medium pump and water pump, the liquid storage pot is used for saving organic heat transfer working medium, the play liquid end of liquid storage pot has working medium pump, evaporation heat exchanger and turbo expander through the pipeline intercommunication in order, carries out the heat-work conversion through turbo expander, and the endless working medium finally flows back to in the liquid storage pot through the pipeline, the condenser is equipped with in the pipeline outside between turbo expander and the liquid storage pot, condenser and liquid storage pot connecting tube install the condenser choke valve, connecting tube installs the liquid storage pot choke valve between liquid storage pot and the working medium pump, working medium pump throttle valve is installed to the connecting tube between working medium pump and the evaporation heat exchanger, the evaporation heat exchanger choke valve is installed to the connecting tube between evaporation heat exchanger, the connecting pipeline between the turbo expander and the condenser is provided with a turbo expander throttle valve, and the turbo expander is connected with the water pump through a rod piece.
Further, the organic heat exchange working medium is pentafluoropropane.
Further, the condenser adopts an air-cooled condenser.
The invention has the following beneficial effects:
(1) the liquid storage tank is used for storing heat exchange working media, the working medium pump is used for compressing organic heat exchange working media to form high-pressure fluid to complete circulation, the evaporation heat exchanger is used for carrying out heat exchange, and the turbo expander is used for converting waste heat energy of waste gas into mechanical energy and applying work to the water pump.
(2) The condenser is used for reducing the temperature of the heat exchange working medium at the liquid return end of the liquid storage tank, so that sufficient temperature difference can be guaranteed in the circulation process of the organic heat exchange working medium, heat exchange can be carried out, the condenser adopts an air-cooled condenser, the circulating heat exchange working medium is cooled by air, and extra energy is not consumed and extra space is not occupied.
(3) A liquid storage tank throttle valve of a connecting pipeline between the liquid storage tank and the working medium pump is used for adjusting the pressure between the liquid outlet end of the liquid storage tank and the working medium pump;
(4) a working medium pump throttle valve of the connecting pipeline between the working medium pump and the evaporation heat exchanger, which is used for adjusting the pressure of the organic working medium entering the evaporation heat exchanger;
(5) the throttle valve of the evaporation heat exchanger is connected with the pipeline between the evaporation heat exchanger and the turboexpander and used for adjusting the pressure of working medium entering the turboexpander;
(6) a turboexpander throttle valve of the connecting pipeline between the turboexpander and the condenser, for regulating the pressure of the working medium entering the condenser;
(7) a condenser throttle valve of the pipeline is connected between the condenser and the liquid storage tank and is used for adjusting the pressure between the reflux end of the liquid storage tank and the condenser;
(8) the turbine expander is directly connected with the water pump through the rod piece, so that the intermediate transmission link is reduced, and the conversion efficiency from heat energy to mechanical energy is ensured.
Description of the drawings:
FIG. 1 is a schematic structural diagram of an organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
The invention discloses an organic Rankine cycle engine cooling system utilizing waste heat of automobile exhaust, which comprises an evaporation heat exchanger 1, a turbo expander 2, a condenser 3, a liquid storage tank 4, a working medium pump 5 and a water pump 6, wherein the liquid storage tank 4 is used for storing organic heat exchange working medium, the liquid outlet end of the liquid storage tank is sequentially communicated with the working medium pump 5, the evaporation heat exchanger 1 and the turbo expander 2 through pipelines, the thermal power conversion is carried out through the turbo expander 2, and the circulating working medium finally flows back into the liquid storage tank 4 through the pipelines. The condenser 3 is arranged on the outer side of the pipeline between the turboexpander 2 and the liquid storage tank 4, the condenser 3 is used for condensing organic heat exchange working media which flow back in a condenser pipeline, the condenser 3 adopts an air-cooled condenser, and a condenser throttle valve 10 is arranged on a connecting pipeline between the condenser 3 and the liquid storage tank 4. A liquid storage tank throttle valve 11 is arranged on a connecting pipeline between the liquid storage tank 4 and the working medium pump 5. A working medium pump throttle valve 7 is arranged on a connecting pipeline between the working medium pump 5 and the evaporation heat exchanger 1. An evaporation heat exchanger throttle valve 8 is arranged on a connecting pipeline between the evaporation heat exchanger 1 and the turboexpander 2. A turbo-expander throttle valve 9 is installed in a connecting pipeline between the turbo-expander 2 and the condenser 3. The turboexpander 2 is connected with the water pump 6 through a rod.
The evaporative heat exchanger 1 of the present invention is externally connected to a pre-muffler (not shown). The organic working medium is pentafluoropropane.
The working method of the organic Rankine cycle engine cooling system for utilizing the waste heat of the automobile exhaust comprises the following steps:
(1) when the device works, the heat exchange working medium flows out from the liquid outlet end of the liquid storage tank 4, the liquid storage tank throttle valve 11 arranged at the liquid outlet end of the liquid storage tank 4 is used for adjusting the pressure of the organic heat exchange working medium, and the heat exchange working medium is compressed by the working medium pump after passing through the liquid storage tank throttle valve 11;
(2) the compressed organic heat exchange working medium is regulated to proper pressure through a working medium pump throttle valve 7 and then enters the evaporation heat exchanger 1 to exchange heat with tail gas;
(3) the heated working medium is regulated to proper pressure through the throttle valve 8 of the evaporation heat exchanger, the organic heat exchange working medium with the pressure regulated by the throttle valve 8 of the evaporation heat exchanger enters the turbo expander 2 to push the turbine blades of the turbo expander 2, so that the turbine blades of the turbo expander 2 rotate to generate mechanical kinetic energy, the mechanical energy is transmitted to the water pump 6 through a rod piece connected with the water pump 6 of the turbo expander 2, and the organic heat exchange working medium after passing through the turbo expander 2 passes through the throttle valve 9 of the turbo expander and is regulated to proper pressure by the throttle valve 9 of the turbo expander and then flows to the condenser 3;
(4) the organic heat exchange working medium is condensed in the air-cooled condenser 3, then flows to the condenser throttle valve 10, is adjusted to a proper pressure through the condenser throttle valve 10, and then flows to the liquid storage tank 4, so that the organic Rankine cycle is completed.
The organic Rankine cycle engine cooling system for recycling the automobile exhaust waste heat has the advantages that the liquid storage tank 4, the working medium, the evaporation heat exchanger 1 and the turbo expander 2 form a complete waste heat utilization system, the pressure of each part is controlled through the throttle valve, and the organic Rankine cycle engine cooling system for recycling the automobile exhaust waste heat is reasonable in structure and high in heat-power conversion efficiency.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (3)
1. The utility model provides an organic rankine cycle engine cooling system of automobile exhaust waste heat utilization which characterized in that: comprises an evaporation heat exchanger (1), a turbo expander (2), a condenser (3), a liquid storage tank (4), a working medium pump (5) and a water pump (6), wherein the liquid storage tank (4) is used for storing organic heat exchange working medium, the liquid outlet end of the liquid storage tank is sequentially communicated with the working medium pump (5), the evaporation heat exchanger (1) and the turbo expander (2) through pipelines, heat power conversion is carried out through the turbo expander (2), the circulating working medium finally flows back to the liquid storage tank (4) through the pipelines, the condenser (3) is arranged at the outer side of the pipeline between the turbo expander (2) and the liquid storage tank (4), a condenser throttle valve (10) is arranged on the connecting pipeline between the condenser (3) and the liquid storage tank (4), a liquid storage tank throttle valve (11) is arranged on the connecting pipeline between the liquid storage tank (4) and the working medium pump (5), and a working medium pump throttle valve (7) is arranged on the, an evaporation heat exchanger throttling valve (8) is installed on a connecting pipeline between the evaporation heat exchanger (1) and the turbo expander (2), a turbo expander throttling valve (9) is installed on a connecting pipeline between the turbo expander (2) and the condenser (3), and the turbo expander (2) is connected with the water pump (6) through a rod piece.
2. The organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust according to claim 1, wherein: the organic heat exchange working medium is pentafluoropropane.
3. The organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust according to claim 1, wherein: the condenser (3) adopts an air-cooled condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910938256.XA CN110617133A (en) | 2019-09-30 | 2019-09-30 | Organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910938256.XA CN110617133A (en) | 2019-09-30 | 2019-09-30 | Organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110617133A true CN110617133A (en) | 2019-12-27 |
Family
ID=68924884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910938256.XA Pending CN110617133A (en) | 2019-09-30 | 2019-09-30 | Organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110617133A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU145190U1 (en) * | 2014-03-11 | 2014-09-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Казанский государственный энергетический университет" (ФГБОУ ВПО "КГЭУ") | HEAT ELECTRIC STATION |
| CN104564422A (en) * | 2014-12-30 | 2015-04-29 | 清华大学 | Comprehensive utilization system for waste heat of internal combustion engine |
| KR20150140061A (en) * | 2014-06-05 | 2015-12-15 | 김영선 | Rankine Cycle electricity generation system |
| CN205591989U (en) * | 2016-04-21 | 2016-09-21 | 兰州理工大学 | Cooling structure based on organic automobile -used power generation system of rankine cycle |
| CN207715200U (en) * | 2017-12-04 | 2018-08-10 | 天津工业大学 | A kind of residual heat of tail gas of automobile recycling Organic Rankine Cycle generator system |
| CN211116210U (en) * | 2019-09-30 | 2020-07-28 | 南京航空航天大学 | Organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust |
-
2019
- 2019-09-30 CN CN201910938256.XA patent/CN110617133A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU145190U1 (en) * | 2014-03-11 | 2014-09-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Казанский государственный энергетический университет" (ФГБОУ ВПО "КГЭУ") | HEAT ELECTRIC STATION |
| KR20150140061A (en) * | 2014-06-05 | 2015-12-15 | 김영선 | Rankine Cycle electricity generation system |
| CN104564422A (en) * | 2014-12-30 | 2015-04-29 | 清华大学 | Comprehensive utilization system for waste heat of internal combustion engine |
| CN205591989U (en) * | 2016-04-21 | 2016-09-21 | 兰州理工大学 | Cooling structure based on organic automobile -used power generation system of rankine cycle |
| CN207715200U (en) * | 2017-12-04 | 2018-08-10 | 天津工业大学 | A kind of residual heat of tail gas of automobile recycling Organic Rankine Cycle generator system |
| CN211116210U (en) * | 2019-09-30 | 2020-07-28 | 南京航空航天大学 | Organic Rankine cycle engine cooling system for utilizing waste heat of automobile exhaust |
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