CN105569782A - Evaporative type particulate matter trap regeneration system - Google Patents
Evaporative type particulate matter trap regeneration system Download PDFInfo
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- CN105569782A CN105569782A CN201610089310.4A CN201610089310A CN105569782A CN 105569782 A CN105569782 A CN 105569782A CN 201610089310 A CN201610089310 A CN 201610089310A CN 105569782 A CN105569782 A CN 105569782A
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- particulate matter
- matter trap
- oil
- diesel engine
- electronic control
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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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
- F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to 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)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to an evaporative type particulate matter trap regeneration system, in particular to the evaporative type particulate matter trap regeneration system which is used for controlling particulate matter pollution of diesel tail gas, and belongs to the technical field of fuel oil regeneration systems. The evaporative type particulate matter trap regeneration system comprises a diesel system, an oil tank, a diesel electronic control unit, a particulate matter trap electronic control unit, an evaporative type fuel oil injection device, an oxidation catalytic converter and a particulate matter trap. An exhaust port of the diesel system is connected with an air inlet port of the oxidation catalytic converter through an exhaust manifold. An air outlet port of the oxidation catalytic converter is connected with an air inlet port of the particulate matter trap through an intermediate exhaust pipe. An air outlet port of the particulate matter trap is connected with an exhaust pipe. According to the evaporative type particulate matter trap regeneration system, fuel oil can be vaporized through the evaporative type fuel oil injection device, a good fuel oil vaporization effect is provided, the fuel injection quantity can be provided according to the specific requirements of the diesel system and the particulate matter trap, and therefore the influence of the regeneration process on a diesel is reduced, and secondary pollution is avoided.
Description
Technical field
The present invention relates to a kind of evaporative type particulate matter trap regenerative system, a kind of for controlling the evaporative type particulate matter trap regenerative system that Fractions of Diesel Engine Exhaust Particulates thing pollutes specifically, belong to fuel oil regenerative system technical field.
Background technique
Diesel particulate discharges seriously befouling environment harm humans is healthy, and its purification technics is the focus that people study always.Particulate matter trap DPF (DieselParticulateFilter) controls the most effective equipment for after-treatment of diesel particulate discharge, and along with the increasingly stringent of Abgasgesetz, its application will be more and more extensive.
Particulate matter trap effectively can reduce diesel particulate discharge, but along with the increase of distance travelled, increasing particle deposition is in catcher, exhaust back pressure is caused to increase, the Economy of diesel engine and power character worsen, therefore in time the combustible granules oxidizing fire of trapping must be fallen, realize the regeneration of particulate matter trap.
According to the difference that regeneration principle and regenerated energy are originated, the regeneration method of diesel particulate catcher can be divided into initiative regeneration and passive regeneration.Initiative regeneration can be categorized as again and utilize external heat source regeneration, utilize diesel engine heat energy to regenerate and the regeneration of non-heated machinery.At present, part diesel engine producer adopts external heat source regeneration techniques scheme, rely on hydrocarbon (the combustion main body of oil HC) concentration increased in diesel exhaust gas, DPF upstream oxidation catalyst converter DOC (DieselOxidationCatalyst) is utilized to improve delivery temperature to the oxidation heat liberation of hydrocarbon, make DPF inlet temperature reach the initiation temperature of particulate matter, realize DPF initiative regeneration.Mainly there is following technical problem in hydrocarbon (the combustion main body of oil HC) concentration that present stage increases in diesel exhaust gas:
1), in a kind of dependence diesel engine running, spray into fuel oil in the diesel exhaust gas stage, fuel oil together enters oxidation catalytic converter DOC with after exhaust mixing.This scheme fuel oil utilization ratio is low, and part fuel oil can adhere on diesel engine cylinder wall, along with piston movement can enter crankshaft of diesel engine chamber, causes machine oil thinning, increases oil consumption.
2) another kind directly fuel oil is injected in oxidation catalytic converter DOC front end, utilize nozzle by fuel-oil atmozation, atomizing effect is relevant with the input pressure of spray nozzle front end, generally high expensive, atomizing effect is general, easily causes the secondary pollution of hydrocarbon.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, thus a kind of evaporative type particulate matter trap regenerative system is provided, can according to diesel engine service data, real-time calculating assessment particulate matter trap state, automatic triggered replenishment also carries out regeneration temperature control management, enhance fuel-oil atmozation characteristic, improve the oxidation heat liberation efficiency of hydrocarbon, avoid the secondary pollution of hydrocarbon.
According to technological scheme provided by the invention, a kind of evaporative type particulate matter trap regenerative system comprises diesel engine system, fuel tank, electronic Control for Diesel Engine unit, particulate matter trap electronic control unit, evaporative type injection oil burning installation, oxidation catalytic converter and particulate matter trap, it is characterized in that: the exhaust port of diesel engine system connects the air inlet port of oxidation catalytic converter by gas exhaust manifold, the air outlet of oxidation catalytic converter connects the air inlet port of particulate matter trap by intermediate exhaust pipe, the air outlet of particulate matter trap connects outlet pipe; The oil inlet end of diesel engine system connects the first oil outlet end of fuel tank by the first oil pipe, the second oil outlet end of fuel tank connects by the second oil pipe the oil inlet end that evaporative type injects oil burning installation; Electronic Control for Diesel Engine unit is electrically connected with diesel engine system, particulate matter trap electronic control unit, electronic Control for Diesel Engine unit reads the sensor on diesel engine system and controls the running of described diesel systems, mutually carries out receiving and sending related data with particulate matter trap electronic control unit simultaneously; Particulate matter trap electronic control unit injects oil burning installation respectively with evaporative type, lambda sensor, the first pyrostat, the second pyrostat, differential pressure pickup, third high temperature sensor are electrically connected, lambda sensor and the first pyrostat are arranged on gas exhaust manifold, second pyrostat is arranged on intermediate exhaust pipe, differential pressure pickup is arranged on the two ends of particulate matter trap, it is poor that differential pressure pickup gathers particulate matter trap pressure at two ends, and third high temperature sensor is arranged on outlet pipe.
Further, evaporative type injects oil burning installation and comprises metering pump and evaporation mouth, and the oil outlet end of metering pump connects the oil inlet end of evaporation mouth by the 3rd oil pipe, and the jet of evaporation mouth stretches in gas exhaust manifold.
Compared with the prior art the present invention has the following advantages:
Structure of the present invention is simple, compact, reasonable, adopt evaporative type to inject oil burning installation and by fuel gasification, good fuel gasification effect can be provided, fuel injection quantity can be provided by diesel engine system and particulate matter trap specific requirement, thus reduce regenerative process to the impact of diesel engine, avoid secondary pollution; Make in particulate matter trap regenerative process little on diesel engine impact, secondary pollution is not produced to environment, there is good reliability and durability, and relative inexpensiveness.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention.
Description of reference numerals: 1-diesel engine system, 2-fuel tank, 3-electronic Control for Diesel Engine unit, 4-particulate matter trap electronic control unit, 5-metering pump, 6-evaporates mouth, 7-lambda sensor, 8-first pyrostat, 9-second pyrostat, 10-differential pressure pickup, 11-third high temperature sensor, 12-oxidation catalytic converter, 13-particulate matter trap, 14-gas exhaust manifold, 15-outlet pipe, 16-intermediate exhaust pipe, 17-first oil pipe, 18-second oil pipe, 19-the 3rd oil pipe.
Embodiment
Embodiment in is by reference to the accompanying drawings further described by the present invention below:
As shown in Figure 1, the present invention mainly comprises diesel engine system 1, fuel tank 2, electronic Control for Diesel Engine unit 3, particulate matter trap electronic control unit 4, evaporative type injection oil burning installation, oxidation catalytic converter 12 and particulate matter trap 13.
The exhaust port of diesel engine system 1 connects the air inlet port of oxidation catalytic converter 12 by gas exhaust manifold 14, the air outlet of oxidation catalytic converter 12 connects the air inlet port of particulate matter trap 13 by intermediate exhaust pipe 16, the air outlet of particulate matter trap 13 connects outlet pipe 15.The exhaust of diesel engine system 1 can successively by gas exhaust manifold 14, catalytic oxidation converter 12, particulate matter trap 13 and outlet pipe 15, finally by other exhaust gas aftertreatment systems or be directly discharged in air.
The oil inlet end of diesel engine system 1 connects the first oil outlet end of fuel tank 2 by the first oil pipe 17, the second oil outlet end of fuel tank 2 connects by the second oil pipe 18 oil inlet end that evaporative type injects oil burning installation.
Described evaporative type injects oil burning installation and comprises metering pump 5 and evaporation mouth 6, and the oil outlet end of metering pump 5 connects the oil inlet end of evaporation mouth 6 by the 3rd oil pipe 19, and the jet of evaporation mouth 6 stretches in gas exhaust manifold 14.
The fuel oil that diesel engine system 1 and evaporative type inject needed for oil burning installation all derives from fuel tank 2.
Electronic Control for Diesel Engine unit 3 is electrically connected with diesel engine system 1, particulate matter trap electronic control unit 4, electronic Control for Diesel Engine unit 3 reads the sensor on diesel engine system 1 and controls described diesel systems 1 and operates, and mutually carries out receiving and sending related data with particulate matter trap electronic control unit 4 simultaneously.
Particulate matter trap electronic control unit 4 injects oil burning installation respectively with evaporative type, lambda sensor 7, first pyrostat 8, second pyrostat 9, differential pressure pickup 10, third high temperature sensor 11 are electrically connected, lambda sensor 7 and the first pyrostat 8 are arranged on gas exhaust manifold 14, second pyrostat 9 is arranged on intermediate exhaust pipe 16, differential pressure pickup 10 is arranged on the two ends of particulate matter trap 13, it is poor that differential pressure pickup 10 gathers particulate matter trap 13 pressure at two ends, and third high temperature sensor 11 is arranged on outlet pipe 15.
Particulate matter trap electronic control unit 4 reads the data of lambda sensor 7, first pyrostat 8, second pyrostat 9, differential pressure pickup 10 and third high temperature sensor 11, and controls metering pump 5 and evaporate mouth 6 to operate.Metering pump 5 is controlled by particulate matter trap electronic control unit 4, by the fuel delivery evaporation mouth 6 in fuel tank 2.Evaporation mouth 6 is controlled by particulate matter trap electronic control unit 4, is injected gas exhaust manifold 14 after the fuel gasification that metering pump 5 is supplied.
Evaporative type of the present invention injects oil burning installation by fuel gasification, can provide good fuel gasification effect, can provide fuel injection quantity by diesel engine system and particulate matter trap specific requirement, thus reduces regenerative process to the impact of diesel engine, avoids secondary pollution.
Working principle of the present invention is as follows:
In electronic Control for Diesel Engine unit controls diesel engine system operation process, by diesel engine system state, rotating speed, moment of torsion, the data such as air inflow pass to particulate matter trap electronic control unit, the data that particulate matter trap electronic control unit gathers differential pressure pickup simultaneously process, the front end of exhaust mass flow and particulate matter trap and the relation of rear end pressure reduction is drawn according to the data of diesel engine Operation Conditions, by itself and initial exhaust amount and pressure reduction parameter comparison, and according to present engine working time, other conditions such as mileage carry out judgement particulate matter trap the need of regeneration.
If the particulate matter in particulate matter trap reaches setting value, and the regeneration triggered in particulate matter trap electronic control unit is started setting, particulate matter trap electronic control unit will read the temperature of catalytic oxidation converter front end first pyrostat, start to calculate fuel injection quantity, carry out oil correct according to the parameter of current lambda sensor and engine system simultaneously, particulate matter trap electronic control unit controls metering pump and from fuel tank, extracts fuel oil and forced feed evaporation mouth, particulate matter trap electronic control unit controls evaporation mouth, evaporation mouth is made to be heated to more than 600 DEG C, the fuel oil provided by metering pump is vaporized in low-oxygen environment, after vaporizing, fuel oil injects gas exhaust manifold according to demand emitted dose, mix with exhaust after fuel gasification and be incorporated in (chemical reaction equation HC+O oxidized in catalytic oxidation converter
2==CO
2+ H
2o+ heat), release a large amount of heats, temperature required for particulate matter trap regeneration is provided, particulate matter trap electronic control unit reads the second pyrostat and third high temperature sensor confirms temperature ramp de, the temperature of particulate matter trap reaches particulate matter burning-point 550 ~ 600 DEG C gradually, and maintain a period of time, realize the regeneration of particulate matter trap.
Claims (2)
1. an evaporative type particulate matter trap regenerative system, comprise diesel engine system (1), fuel tank (2), electronic Control for Diesel Engine unit (3), particulate matter trap electronic control unit (4), evaporative type injects oil burning installation, oxidation catalytic converter (12) and particulate matter trap (13), it is characterized in that: the exhaust port of diesel engine system (1) connects the air inlet port of oxidation catalytic converter (12) by gas exhaust manifold (14), the air outlet of oxidation catalytic converter (12) connects the air inlet port of particulate matter trap (13) by intermediate exhaust pipe (16), the air outlet of particulate matter trap (13) connects outlet pipe (15), the oil inlet end of diesel engine system (1) connects the first oil outlet end of fuel tank (2) by the first oil pipe (17), the second oil outlet end of fuel tank (2) connects by the second oil pipe (18) oil inlet end that evaporative type injects oil burning installation, electronic Control for Diesel Engine unit (3) is electrically connected with diesel engine system (1), particulate matter trap electronic control unit (4), electronic Control for Diesel Engine unit (3) reads the sensor on diesel engine system (1) and controls described diesel systems (1) running, mutually carries out receiving and sending related data with particulate matter trap electronic control unit (4) simultaneously, particulate matter trap electronic control unit (4) injects oil burning installation with evaporative type respectively, lambda sensor (7), first pyrostat (8), second pyrostat (9), differential pressure pickup (10), third high temperature sensor (11) is electrically connected, lambda sensor (7) and the first pyrostat (8) are arranged on gas exhaust manifold (14), second pyrostat (9) is arranged on intermediate exhaust pipe (16), differential pressure pickup (10) is arranged on the two ends of particulate matter trap (13), it is poor that differential pressure pickup (10) gathers particulate matter trap (13) pressure at two ends, third high temperature sensor (11) is arranged on outlet pipe (15).
2. a kind of evaporative type particulate matter trap regenerative system as claimed in claim 1, it is characterized in that: described evaporative type injects oil burning installation and comprises metering pump (5) and evaporation mouth (6), the oil outlet end of metering pump (5) connects the oil inlet end of evaporation mouth (6) by the 3rd oil pipe (19), the jet of evaporation mouth (6) stretches in gas exhaust manifold (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089310.4A CN105569782A (en) | 2016-02-17 | 2016-02-17 | Evaporative type particulate matter trap regeneration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089310.4A CN105569782A (en) | 2016-02-17 | 2016-02-17 | Evaporative type particulate matter trap regeneration system |
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| CN105569782A true CN105569782A (en) | 2016-05-11 |
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| CN201610089310.4A Pending CN105569782A (en) | 2016-02-17 | 2016-02-17 | Evaporative type particulate matter trap regeneration system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237663A (en) * | 2017-07-19 | 2017-10-10 | 无锡威孚高科技集团股份有限公司 | One kind is used for the double vaporation-type dpf regeneration systems of Light-duty Vehicle |
| CN107387207A (en) * | 2017-08-17 | 2017-11-24 | 无锡威孚高科技集团股份有限公司 | A kind of fuel metering injection apparatus for dpf regeneration system |
| CN108279125A (en) * | 2018-01-16 | 2018-07-13 | 清华大学苏州汽车研究院（吴江） | A kind of quick dust stratification device of gasoline engine granule capturing system |
| CN110307069A (en) * | 2019-07-23 | 2019-10-08 | 凯龙高科技股份有限公司 | A kind of pulse cleaning grain catcher free of demolition |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237663A (en) * | 2017-07-19 | 2017-10-10 | 无锡威孚高科技集团股份有限公司 | One kind is used for the double vaporation-type dpf regeneration systems of Light-duty Vehicle |
| CN107387207A (en) * | 2017-08-17 | 2017-11-24 | 无锡威孚高科技集团股份有限公司 | A kind of fuel metering injection apparatus for dpf regeneration system |
| CN108279125A (en) * | 2018-01-16 | 2018-07-13 | 清华大学苏州汽车研究院（吴江） | A kind of quick dust stratification device of gasoline engine granule capturing system |
| CN110307069A (en) * | 2019-07-23 | 2019-10-08 | 凯龙高科技股份有限公司 | A kind of pulse cleaning grain catcher free of demolition |
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Application publication date: 20160511 |
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