CN104747254A - Immediate burning type particulate matter trap and trap method thereof - Google Patents
Immediate burning type particulate matter trap and trap method thereof Download PDFInfo
- Publication number
- CN104747254A CN104747254A CN201510131965.9A CN201510131965A CN104747254A CN 104747254 A CN104747254 A CN 104747254A CN 201510131965 A CN201510131965 A CN 201510131965A CN 104747254 A CN104747254 A CN 104747254A
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- particulate matter
- oxygen
- matter trap
- pump
- trap body
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Sampling And Sample Adjustment (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to an immediate burning type particulate matter trap and a trap method thereof. The immediate burning type particulate matter trap comprises a particulate matter trap body and an oxygen pump. The particulate matter trap body comprises flow inlets, flow outlets and filtering parts. The oxygen pump is arranged on the flow-inlet side of the particulate matter trap body. The particulate matter trap method comprises that oxygen is continually pumped into the particulate matter trap body by the oxygen pump so that particulate matters in the particulate matter trap body can be immediately burned. Immediate and full burning can be carried out on the flammable particulate matters in the particulate matter trap body by an engine during working, the particulate matter trap body is prevented from being blocked by the particulate matters, the activation time is prolonged, or even the activation is not needed. The variation of engine exhaust backpressure is lowered, and the engine operating condition is more stable. The cost is saved economically, diesel injection burning is basically removed, the cost of the oxygen pump in the using cycle is much lower than the cost of diesel, and the performance is stable and reliable.
Description
Technical field
The present invention relates to a kind of particulate matter trap, particularly a kind of instant combustion particulate matter trap with oxygen pump and capture method thereof.
Background technique
The working principle of existing particulate matter trap is general as shown in Figure 1, particulate matter trap and differential pressure pickup with the use of.During diesel engine work, tail gas by particulate matter trap, by An (n=1,2 ..., 10) hole lead to Bm (m=1,2 ..., 9) and hole outwards discharges.But An hole and Bm hole are blind hole, tail gas is after arriving Bm duct by the tiny micropore in An hole and side, Bm hole, then discharge.And particulate matter (Particulate matter:PM) size is comparatively large, cannot discharge with tail gas, so can only be trapped in An duct.When particulate matter runs up to a certain amount of, namely differential pressure pickup obtains information, now needs spray diesel oil in particulate matter trap (DPF) to carry out Thorough combustion to burnable granule.After differential pressure pickup numerical value is normal, namely quit work.Now, the burnable granule in particulate matter trap is converted into carbon dioxide after Thorough combustion and water discharges, and namely particulate matter trap starts new periodic duty.
Therefore, current particulate matter trap, need to run up to a certain amount of particulate matter and just carry out spray diesel combustion, oil jetting combustion, cost necessarily increases.And because particulate matter trap is when collecting granules thing, along with the increase of catcher endoparticle thing, the back pressure of motor exhaust is also in continuous increase, therefore the operating mode of motor is also in constantly change, and the operating mode of motor is unstable.
Further, period of combustion determines according to fuel injection quantity, and the unstability of engine operating condition causes the uncertainty of fuel injection quantity.Fuel injection quantity has lacked, and burning particulate matter can be caused insufficient, thus causes the particulate matter accumulation in particulate matter trap duct more and more, and along with the passing of service time, particulate matter trap can be blocked by particulate matter very soon, must activate catcher.Fuel injection quantity is many, and cost can improve, and can cause the waste of diesel oil.
Summary of the invention
The technical problem to be solved in the present invention is: in order to just overcome existing particulate matter trap to need to run up to the deficiency that a certain amount of particulate matter carries out spraying diesel combustion, the invention provides a kind of instant combustion particulate matter trap and capture method thereof.
The technical solution adopted for the present invention to solve the technical problems is: a kind of instant combustion particulate matter trap, comprise particulate matter (Particulate matter:PM) catcher body, described particulate matter trap body comprises inflow entrance, outflow opening and filtration fraction, instant combustion particulate matter trap of the present invention also comprises oxygen pump, and described oxygen pump is configured in the inflow entrance side of described particulate matter trap body.
Also comprise particulate matter sensors, the particle concentration in the discharge tail gas that described oxygen pump is measured according to particulate matter sensors makes oxygen output quantity change.The total concentration of what this particulate matter sensors was measured is burnable granule and non-combustible particulate matter.When particulate matter trap is by non-combustible particulate matter blocking, the concentration of namely what particulate matter sensors recorded be non-combustible particulate matter, whether oxygen pump constantly pumps into oxygen and particle concentration does not reduce, therefore, particulate matter sensors detection catcher now can be utilized blocked and need to change.
Also comprise particulate matter sensors, the combustible granules substrate concentration in the discharge tail gas that described oxygen pump is measured according to particulate matter sensors makes oxygen output quantity change.
Also comprise control unit (DCU), described control unit changes according to the oxygen output quantity of the measurement result control oxygen-generating pump of particulate matter sensors.
Adopt a particle collection method for described instant combustion particulate matter trap, control oxygen-generating pump, makes oxygen pump constantly in burnable granule catcher body, pump into oxygen, makes immediately to burn at the intrinsic burnable granule of particulate matter trap.
Adopt a particle collection method for described instant combustion particulate matter trap, directly measured the particle concentration of discharging in tail gas by particulate matter sensors; Then control oxygen-generating pump, the particle concentration information that oxygen pump is fed back according to particulate matter sensors, constantly pumps into oxygen in particulate matter trap body, makes immediately to burn at the intrinsic burnable granule of particulate matter trap.
Adopt a particle collection method for described instant combustion particulate matter trap, directly measured the combustible granules substrate concentration of discharging in tail gas by particulate matter sensors; Then control oxygen-generating pump, the burnable granule concentration information that oxygen pump is fed back according to particulate matter sensors, constantly pumps into oxygen in particulate matter trap body, makes immediately to burn at the intrinsic burnable granule of particulate matter trap.
In step (2), by control unit control oxygen-generating pump, according to the measurement result of particulate matter sensors feedback, constantly can pump into oxygen in particulate matter trap body, make immediately to burn at the intrinsic burnable granule of particulate matter trap.
Necessary condition needed for burnable granule burning is: oxygen and ignition temperature.After invention increases oxygen pump, adopt the mode pumping into oxygen, because tail gas itself is with high temperature, or oxygen pump inner band having heaters, this just meets two conditions of burnable granule burning simultaneously.Constantly oxygen is pumped into particulate matter trap body by oxygen pump, motor so just can be made operationally just to carry out instant burning fully to the intrinsic burnable granule of particulate matter trap, make burnable granule to arrive behind the duct of particulate matter trap body within very short time just burned fall, thus ensured effective work of particulate matter trap body, particulate matter trap body is not blocked by particulate matter, extends soak time even without the need to activation; Reduce the variable quantity of motor exhaust back pressure, engine operating condition is more stable.
Measurement is being discharged in the precision of particle concentration in tail gas, present invention uses particulate matter sensors, particulate matter sensors is specifically designed to the combustible granules substrate concentration measured in tail gas, by particulate matter sensors, burnable granule concentration information is fed back to control unit, the present invention is higher than using differential pressure pickup to measure combustible granules substrate concentration precision, and information is more accurate.Saved cost economically, substantially eliminated spray diesel combustion, the cost of oxygen pump in life cycle is low more than diesel oil cost, and stable and reliable for performance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the working principle schematic diagram of existing particulate matter trap.
Fig. 2 is the working principle schematic diagram of instant combustion particulate matter trap of the present invention.
In figure 1, particulate matter trap body, 1-1, inflow entrance, 1-2, outflow opening, 1-3, filtration fraction, 2, oxygen pump, 3, particulate matter sensors.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As shown in Figure 2, the instant combustion particulate matter trap of one of the present invention, comprise particulate matter trap body, particulate matter sensors 3 and oxygen pump 2, particulate matter trap body 1 comprises inflow entrance 1-1, outflow opening 1-2 and filtration fraction 1-3, and inflow entrance 1-1 extracts the part in the gas of the exhaust passageway of motor and makes it flow into described inflow entrance 1-1.Oxygen pump 2 is configured in the inflow entrance 1-1 side of described particulate matter trap body 1.Oxygen pump 2 can be connected with ambient air by external pipeline, to pump into oxygen in particulate matter trap body 1.In the present embodiment, can adopt the oxygen pump with zirconium oxide in return medium, carry heater in this oxygen pump, the oxygen temperature pumped can make the burnable granule in particulate matter trap body 1 burn; Ion exchange membrane oxygen pump can also be adopted, this oxygen pump is without heater, but because the temperature of motor exhaust self is very high, pump after in oxygen arrival particulate matter trap body 1 and be heated to uniform temperature, the burnable granule in particulate matter trap body 1 still can be made to burn.
Also comprise control unit, usually, control unit is carried in onboard diagnostic system, can by the control unit in onboard diagnostic system and instant combustion particulate matter trap of the present invention with the use of, described control unit changes according to the oxygen output quantity of the measurement result control oxygen-generating pump 2 of particulate matter sensors 3.In the present embodiment, particulate matter sensors can be the particulate matter sensors of the total concentration can measuring burnable granule and non-combustible particulate matter, also can be the particulate matter sensors only measuring combustible granules substrate concentration.
Adopt a particle collection method for described instant combustion particulate matter trap, only need control oxygen-generating pump 2, make oxygen pump 2 constantly in particulate matter trap body 1, pump into oxygen, the burnable granule in particulate matter trap body 1 is burnt immediately.This mode does not limit the oxygen that oxygen pump pumps, in order to control the use duration of oxygen-generating pump, extend the working life of oxygen pump, particulate matter sensors 3 can be adopted, measured by particulate matter sensors 3 and discharge particle concentration in tail gas or combustible granules substrate concentration; Then control oxygen-generating pump 2, the concentration information that oxygen pump 2 is fed back according to particulate matter sensors 3, constantly pumps into oxygen in particulate matter trap body 1, and the burnable granule in particulate matter trap body 1 is burnt immediately.
Particularly, in conjunction with control unit, particle collection method of the present invention, comprises the following steps:
(1) directly measured by particulate matter sensors 3 and discharge particle concentration in tail gas or combustible granules substrate concentration, particulate matter sensors 3 feeds back to control unit concentration information;
(2) by control unit control oxygen-generating pump 2, according to the concentration information that particulate matter sensors 3 is fed back, constantly in particulate matter trap body 1, pump into oxygen, the burnable granule in particulate matter trap body 1 is burnt immediately.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (8)
1. an instant combustion particulate matter trap, comprise particulate matter (Particulate matter:PM) catcher body (1), described particulate matter trap body (1) comprises inflow entrance (1-1), outflow opening (1-2) and filtration fraction (1-3), it is characterized in that: also comprise oxygen pump (2), described oxygen pump (2) is configured in inflow entrance (1-1) side of described particulate matter trap body (1).
2. instant combustion particulate matter trap as claimed in claim 1, it is characterized in that: also comprise particulate matter sensors (3), the particle concentration in the discharge tail gas that described oxygen pump (2) is measured according to particulate matter sensors (3) makes oxygen output quantity change.
3. instant combustion particulate matter trap as claimed in claim 1, it is characterized in that: also comprise particulate matter sensors (3), the combustible granules substrate concentration in the discharge tail gas that described oxygen pump (2) is measured according to particulate matter sensors (3) makes oxygen output quantity change.
4. instant combustion particulate matter trap as claimed in claim 2 or claim 3, it is characterized in that: also comprise control unit (DCU), described control unit changes according to the oxygen output quantity of the measurement result control oxygen-generating pump (2) of particulate matter sensors (3).
5. one kind adopts the particle collection method of instant combustion particulate matter trap as claimed in claim 1, it is characterized in that: control oxygen-generating pump (2), make oxygen pump (2) constantly in particulate matter trap body (1), pump into oxygen, the burnable granule in particulate matter trap body (1) is burnt immediately.
6. adopt a particle collection method for instant combustion particulate matter trap as claimed in claim 2, it is characterized in that:
(1) particle concentration of discharging in tail gas is directly measured by particulate matter sensors (3);
(2) oxygen-generating pump (2) is then controlled, make the particle concentration information that oxygen pump (2) feeds back according to particulate matter sensors (3), constantly in particulate matter trap body (1), pump into oxygen, the burnable granule in particulate matter trap body (1) is burnt immediately.
7. adopt a particle collection method for instant combustion particulate matter trap as claimed in claim 3, it is characterized in that:
(1) the combustible granules substrate concentration of discharging in tail gas is directly measured by particulate matter sensors (3);
(2) oxygen-generating pump (2) is then controlled, make the burnable granule concentration information that oxygen pump (2) feeds back according to particulate matter sensors (3), constantly in particulate matter trap body (1), pump into oxygen, the burnable granule in particulate matter trap body (1) is burnt immediately.
8. one kind adopts the particle collection method of instant combustion particulate matter trap as claimed in claims 6 or 7, it is characterized in that, in step (2), by control unit control oxygen-generating pump (2), according to the measurement result that particulate matter sensors (3) is fed back, constantly in particulate matter trap body (1), pump into oxygen, the burnable granule in particulate matter trap body (1) is burnt immediately.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510131965.9A CN104747254B (en) | 2015-03-24 | 2015-03-24 | Instant combustion-type particulate matter trap and its capture method |
| PCT/CN2015/075946 WO2016149963A1 (en) | 2015-03-24 | 2015-04-07 | Instant combustion-type particulate matter trap and trapping method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510131965.9A CN104747254B (en) | 2015-03-24 | 2015-03-24 | Instant combustion-type particulate matter trap and its capture method |
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| Publication Number | Publication Date |
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| CN104747254A true CN104747254A (en) | 2015-07-01 |
| CN104747254B CN104747254B (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510131965.9A Active CN104747254B (en) | 2015-03-24 | 2015-03-24 | Instant combustion-type particulate matter trap and its capture method |
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| CN (1) | CN104747254B (en) |
| WO (1) | WO2016149963A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837773A (en) * | 2022-05-27 | 2022-08-02 | 奇瑞汽车股份有限公司 | Particle collecting device and vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016149963A1 (en) | 2016-09-29 |
| CN104747254B (en) | 2018-01-02 |
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Address after: 213200 No. 199 East Jinyang Road, Jintan District, Jiangsu, Changzhou Applicant after: Changzhou Jun Kun Electronics Co., Ltd. Address before: 213200 Jiangsu, Changzhou City, Jintan province after the town of gold Yang Town No. 6 Applicant before: Jintan Jonssen Electric-tech Corp. |
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