CN110593995A - Engine exhaust waste heat recovery system - Google Patents
Engine exhaust waste heat recovery system Download PDFInfo
- Publication number
- CN110593995A CN110593995A CN201910944518.3A CN201910944518A CN110593995A CN 110593995 A CN110593995 A CN 110593995A CN 201910944518 A CN201910944518 A CN 201910944518A CN 110593995 A CN110593995 A CN 110593995A
- Authority
- CN
- China
- Prior art keywords
- engine
- heat exchange
- water outlet
- water inlet
- exchange piece
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/025—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from both the cooling liquid and the exhaust gases of the propulsion plant
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- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2046—Periodically cooling catalytic reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
-
- 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
- F02G5/04—Profiting from waste heat of exhaust gases in combination with other waste heat from combustion engines
-
- 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
- F02G2260/00—Recuperating heat from exhaust gases of combustion engines and heat from cooling circuits
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to an engine exhaust waste heat recovery system, which comprises an engine, a fan heater, an automobile exhaust catalyst, a temperature regulator, a three-way joint and a heat exchange piece, wherein the fan heater is arranged on the engine; the engine is provided with an engine water inlet and an engine water outlet; the heat exchange piece is arranged on the periphery of the automobile exhaust catalytic converter, and is provided with a heat exchange piece water inlet and a heat exchange piece water outlet; the water outlet of the engine is communicated with the water inlet of the temperature regulator through a pipeline, and the water outlet of one temperature regulator is communicated with the water inlet of the heat exchange part through a pipeline; three joints of the three-way joint are respectively communicated with the water outlet of the other temperature regulator, the water outlet of the heat exchange part and the water inlet of the warm air blower through pipelines, and the water outlet of the warm air blower is communicated with the water inlet of the engine through a pipeline. The invention has the advantages that the water temperature of the engine can be quickly raised, and the requirement of customers on quick temperature rise of air conditioner warm air can be met; meanwhile, the heat exchange part forms a heat insulation structure of the automobile exhaust catalyst, so that the cost is reduced, and the light weight of an automobile is facilitated.
Description
Technical Field
The invention relates to an automobile engine assembly, in particular to an engine exhaust waste heat recovery system.
Background
With the popularization of automobile products, automobiles in all regions of the world are widely applied regardless of tropical or frigid zones, wherein the temperature of the frigid zone is generally low and even reaches minus 40-50 ℃, if the automobiles run in a low-temperature environment or a high-frequency short distance for a long time, the engines are difficult to reach an ideal working temperature, the phenomena of engine oil dilution and emulsification of the engines can occur, the normal work of an engine lubricating system is influenced, the engines can be scrapped seriously due to poor lubrication, and the requirements of customers on air conditioner warm air can not be quickly met due to the low rising speed of the water temperature of the engines.
The three-way catalyst is the most important external purifying device installed in the automobile exhaust system, and can convert part of harmful gas discharged by automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction. However, after high-temperature automobile exhaust enters the three-way catalyst, the temperature of the three-way catalyst is high, and heat radiated by the three-way catalyst is completely dissipated into the air, so that peripheral parts are easily overheated, and the durability and reliability of the peripheral parts are affected. Therefore, the periphery of the three-way catalyst is provided with a heat shield to reduce the possibility of overheating of peripheral parts. However, the provision of the heat shield not only increases the cost but also is disadvantageous in terms of weight reduction of the automobile.
Disclosure of Invention
It is an object of the present invention to provide an engine exhaust waste heat recovery system to mitigate or eliminate at least one of the above-mentioned problems.
The invention relates to an engine exhaust waste heat recovery system which comprises an engine, a fan heater, an automobile exhaust catalyst, a temperature regulator, a three-way joint and a heat exchange piece, wherein the engine is connected with the fan heater through a heat exchange pipe;
the engine is provided with an engine water inlet and an engine water outlet;
the warm air blower is provided with a warm air blower water inlet and a warm air blower water outlet;
the thermostat is provided with a thermostat water inlet, a first thermostat water outlet and a second thermostat water outlet;
the heat exchange piece is arranged on the periphery of the automobile exhaust catalytic converter, a heat exchange piece water inlet and a heat exchange piece water outlet are formed in the heat exchange piece, and a liquid flow passage communicated with the heat exchange piece water inlet and the heat exchange piece water outlet is formed in the heat exchange piece;
the water outlet of the engine is communicated with the water inlet of the temperature regulator through a pipeline, and the water outlet of the first temperature regulator is communicated with the water inlet of the heat exchange part through a pipeline; and three joints of the three-way joint are respectively communicated with the water outlet of the second thermostat, the water outlet of the heat exchange part and the water inlet of the fan heater through pipelines, and the water outlet of the fan heater is communicated with the water inlet of the engine through a pipeline.
Further, the heat exchange member constitutes the heat insulation structure of the automobile exhaust catalyst.
Further, the heat exchange piece is a water jacket arranged on the periphery of the automobile exhaust catalyst.
Further, the heat exchange piece is a metal pipe wound on the periphery of the automobile exhaust catalyst.
The invention has the advantages that the water temperature of the engine can be quickly raised, the requirement that the engine in cold regions quickly reaches the ideal operation temperature can be met, and the requirement that customers quickly raise the temperature of warm air of an air conditioner can be met; constitute the heat-proof structure of automobile exhaust catalyst converter through heat transfer spare, can replace the heat exchanger that separates of original setting in automobile exhaust catalyst converter outlying, be favorable to the lightweight of car when reduce cost.
Drawings
Fig. 1 is a schematic structural view of an engine exhaust waste heat recovery system according to an embodiment.
In the figure: 1-an engine; 2, a warm air blower; 3-automobile exhaust catalyst; 4, a water inlet of the engine; 5, a water outlet of the engine; 6, a water inlet of a fan heater; 7, a water outlet of the fan heater; 8-a temperature regulator; 9-three-way connection; 10 — a first conduit; 11-a second conduit; 12 — a third conduit; 13-a fourth conduit; 14-a heat exchange member; 15-a fifth conduit; 16-sixth conduit.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, the engine exhaust waste heat recovery system comprises an engine 1, a fan heater 2, an automobile exhaust catalyst 3, a thermostat 8, a three-way joint 9 and a heat exchange member 14; the engine 1 is provided with an engine water inlet 4 and an engine water outlet 5; the warm air blower 2 is provided with a warm air blower water inlet 6 and a warm air blower water outlet 7; the temperature regulator 8 is provided with a temperature regulator water inlet, a first temperature regulator water outlet and a second temperature regulator water outlet; the heat exchange piece 14 is arranged at the periphery of the automobile exhaust catalytic converter 3, a heat exchange piece water inlet and a heat exchange piece water outlet are formed in the heat exchange piece 14, and a liquid flow passage communicated with the heat exchange piece water inlet and the heat exchange piece water outlet is formed in the heat exchange piece 14; the water outlet 5 of the engine is communicated with the water inlet of the temperature regulator through a second pipeline 11, and the water outlet of the first temperature regulator is communicated with the water inlet of the heat exchange part through a fifth pipeline 15; the three joints of the three-way joint 9 are respectively a first joint, a second joint and a third joint, the first joint is communicated with the water outlet of the second thermoregulator through a third pipeline 12, the second joint is communicated with the water outlet of the heat exchange part through a sixth pipeline 16, the third joint is communicated with the water inlet 6 of the fan heater through a fourth pipeline 13, and the water outlet 7 of the fan heater is communicated with the water inlet 4 of the engine through a first pipeline 10.
When the engine 1 is started, the automobile exhaust catalyst 3 can bring higher temperature due to high-temperature exhaust discharged by the engine 1, and the automobile exhaust catalyst 3 can continuously radiate heat outwards. Partial heat radiated by the automobile exhaust catalyst 3 can be transmitted to the heat exchange piece 14, and the water temperature in the liquid flow channel of the heat exchange piece 14 can be rapidly increased, so that the temperature of the heating water of the engine 1 can be rapidly increased, the temperature of the hot air output by the fan heater 2 can be rapidly increased, and the requirement of a customer on rapid temperature increase of the air conditioning hot air can be met. Moreover, the heating ventilation water of the engine 1 and the cooling system of the engine 1 are in series connection, and finally the engine 1 can quickly reach an ideal working temperature; when the temperature of warm water of the engine 1 reaches the ideal working temperature, the thermostat 8 is automatically disconnected from the heat exchange part 14, the water outlet 5 of the engine is directly communicated with the water inlet 6 of the fan heater, and the increase of heat load of the whole cooling system caused by excessive waste heat recovery can be avoided.
In the present embodiment, the heat exchanging element 14 constitutes a heat insulating structure of the automobile exhaust catalyst 3. The shape and the structure of the heat exchange piece 14 can be reasonably designed according to the heat insulation requirement, so that the heat exchange piece 14 can be isolated between the automobile exhaust catalyst 3 and the peripheral parts of the automobile exhaust catalyst 3, the water in the heat exchange piece 14 can take away heat and play a role in heat insulation, and the possibility of overheating of the peripheral parts can be reduced. The heat exchanger 14 replaces the heat shield of the automobile exhaust catalyst 3, so that the original heat shield can be omitted, the cost can be reduced, and the light weight of the automobile is facilitated.
Preferably, the heat exchanging member 14 is a water jacket provided on the periphery of the automobile exhaust catalyst 3. The water jacket may surround the periphery of the automobile exhaust catalyst 3.
Preferably, the heat exchanging member 14 is a metal pipe wound around the periphery of the automobile exhaust catalyst 3. The winding may be a spiral winding.
As an implementation mode, each pipeline can be made of rubber tubes or metal tubes, and the connection modes among the pipelines, the joints, the water inlets and the water outlets can be fixed by metal hoops.
Claims (4)
1. An engine exhaust waste heat recovery system characterized by: comprises an engine (1), a warm air blower (2), an automobile exhaust catalyst (3), a thermostat (8), a three-way joint (9) and a heat exchange piece (14);
the engine (1) is provided with an engine water inlet (4) and an engine water outlet (5);
the warm air blower (2) is provided with a warm air blower water inlet (6) and a warm air blower water outlet (7);
the thermostat (8) is provided with a thermostat water inlet, a first thermostat water outlet and a second thermostat water outlet;
the heat exchange piece (14) is arranged on the periphery of the automobile exhaust catalytic converter (3), a heat exchange piece water inlet and a heat exchange piece water outlet are formed in the heat exchange piece (14), and a liquid flow channel communicated with the heat exchange piece water inlet and the heat exchange piece water outlet is formed in the heat exchange piece (14);
the water outlet (5) of the engine is communicated with the water inlet of the temperature regulator through a pipeline, and the water outlet of the first temperature regulator is communicated with the water inlet of the heat exchange part through a pipeline; three joints of the three-way joint (9) are respectively communicated with the water outlet of the second thermostat, the water outlet of the heat exchange part and the water inlet (6) of the fan heater through pipelines, and the water outlet (7) of the fan heater is communicated with the water inlet (4) of the engine through a pipeline.
2. The engine exhaust waste heat recovery system according to claim 1, characterized in that: the heat exchanger (14) forms a heat insulation structure of the automobile exhaust catalyst (3).
3. The engine exhaust waste heat recovery system according to claim 1, characterized in that: the heat exchange piece (14) is a water jacket arranged on the periphery of the automobile exhaust catalyst (3).
4. The engine exhaust waste heat recovery system according to claim 1, characterized in that: the heat exchange piece (14) is a metal pipe wound on the periphery of the automobile exhaust catalyst (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910944518.3A CN110593995A (en) | 2019-09-30 | 2019-09-30 | Engine exhaust waste heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910944518.3A CN110593995A (en) | 2019-09-30 | 2019-09-30 | Engine exhaust waste heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110593995A true CN110593995A (en) | 2019-12-20 |
Family
ID=68865461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910944518.3A Pending CN110593995A (en) | 2019-09-30 | 2019-09-30 | Engine exhaust waste heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110593995A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855317A (en) * | 2021-03-15 | 2021-05-28 | 东风汽车集团股份有限公司 | Automobile exhaust waste heat recovery device and control method thereof |
| CN114571950A (en) * | 2022-03-28 | 2022-06-03 | 柳州五菱新能源汽车有限公司 | Engine exhaust waste heat utilization equipment and vehicle |
| CN115370459A (en) * | 2021-05-18 | 2022-11-22 | 广州汽车集团股份有限公司 | Engine cooling system, control method, electronic device and storage medium |
| CN115875145A (en) * | 2021-09-29 | 2023-03-31 | 比亚迪股份有限公司 | Catalyst preheating method, vehicle-mounted controller, automobile and storage medium |
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| CN109630246A (en) * | 2019-01-29 | 2019-04-16 | 杰锋汽车动力系统股份有限公司 | A kind of automotive residual heat recycling and reusing system |
| KR101978333B1 (en) * | 2017-11-28 | 2019-05-14 | 대우조선해양 주식회사 | Steam condenser operating system of ship and method |
| KR102008514B1 (en) * | 2017-10-31 | 2019-08-07 | 포스코에너지 주식회사 | Fuel cell heat recovery apparatus connected to combined generator and hybrid system using heater and thereof |
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Patent Citations (8)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855317A (en) * | 2021-03-15 | 2021-05-28 | 东风汽车集团股份有限公司 | Automobile exhaust waste heat recovery device and control method thereof |
| CN115370459A (en) * | 2021-05-18 | 2022-11-22 | 广州汽车集团股份有限公司 | Engine cooling system, control method, electronic device and storage medium |
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| CN115875145A (en) * | 2021-09-29 | 2023-03-31 | 比亚迪股份有限公司 | Catalyst preheating method, vehicle-mounted controller, automobile and storage medium |
| CN114571950A (en) * | 2022-03-28 | 2022-06-03 | 柳州五菱新能源汽车有限公司 | Engine exhaust waste heat utilization equipment and vehicle |
| CN114571950B (en) * | 2022-03-28 | 2024-05-07 | 柳州五菱新能源汽车有限公司 | Engine exhaust waste heat utilization device and vehicle |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20191220 |