CN106988833B - Fractions of Diesel Engine Exhaust Particulates object capturing device and its control method - Google Patents
Fractions of Diesel Engine Exhaust Particulates object capturing device and its control method Download PDFInfo
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- CN106988833B CN106988833B CN201710264129.7A CN201710264129A CN106988833B CN 106988833 B CN106988833 B CN 106988833B CN 201710264129 A CN201710264129 A CN 201710264129A CN 106988833 B CN106988833 B CN 106988833B
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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
- F01N3/0233—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 periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake
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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
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
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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
- 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
- Y02T10/40—Engine management systems
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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)
Abstract
The invention discloses a kind of Fractions of Diesel Engine Exhaust Particulates object capturing devices, comprising: first shell；Second shell；Baffle；Filter core is wall-flow type honeycomb ceramic filter core, and hole road shape is truncated cone, and the big end and small end in duct are arranged alternately, and the cross-sectional area of big end is 1.6-1.8 times of small end cross-sectional area, and small end is closed, and big end is not closed, and cell densities are 16 holes/cm2；Air inlet pipe；Downtake pipe and ash releasing tube, wherein the second shell is rotated by a motor driven, and direction of rotation is consistent with direction of rotation of the air inlet pipe tail gas inside first shell；And a kind of control method of Fractions of Diesel Engine Exhaust Particulates object capturing device.The present invention has the advantages that arresting efficiency is high, and long service life, regeneration energy consumption is low, and deashing facilitates.
Description
Technical field
The present invention relates to exhaust gas from diesel vehicle processing technology fields.It is more particularly related to a kind of diesel engine vent gas
Particlate trap system and its control method.
Background technique
In order to meet increasingly strict emission control target, exhaust gas from diesel vehicle post-processing technology is as diesel engine emissions
One important component of control system, more and more attention has been paid to.Particulate matter trap technology is considered as current purification bavin
Oil machine particulate matter most one of direct, most efficient method, and the diesel engine particles post-processing technology being commercialized in the world.It is existing
Grain catcher can filter off most of particle in tail gas, and particle capture efficiency is generally in 70-90%, but trap is worked
Cheng Zhong, particle can accumulate in filter, and diesel exhaust gas back pressure is caused to increase, when exhaust back pressure is more than certain value, diesel oil
Machine work starts obvious deterioration, leads to the reduced performances such as engine power performance and economy, it is necessary to the particle of deposition is removed in time,
Can just grain catcher be made to work normally, i.e., grain catcher regenerates.Existing grain catcher regeneration is generallyd use and will be filtered
Particle in device realizes that there are filtering body (filter core) thermal stress greatly, uses in such a way that external heat source directly heats burning
The problems such as service life is short, and regeneration energy consumption is high, in addition, combustive regeneration is merely able to the carbon particle burn-up inside grain catcher, but
The ash content of grain interior trapping cannot burn removal, and can accumulate in grain catcher causes to press before and after grain catcher
Difference rises, to influence the working life of grain catcher, needs to carry out artificial deashing, general ash removal method to grain catcher
It is to disassemble grain catcher, is distinguished the ash inside grain catcher by high pressure gas blowback or wash with water
Fall, it is very inconvenient.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is high that it is a still further object of the present invention to provide a kind of arresting efficiencies, and long service life, regeneration energy consumption is low, and deashing is convenient
Fractions of Diesel Engine Exhaust Particulates object capturing device.
It is a still further object of the present invention to provide a kind of control methods of Fractions of Diesel Engine Exhaust Particulates object capturing device.
In order to realize these purposes and other advantages according to the present invention, Fractions of Diesel Engine Exhaust Particulates object trapping dress is provided
It sets characterized by comprising
First shell is vertically arranged comprising integrally formed first cylindrical portion and the first conus portion, first circle
Column portion is located at the surface of first conus portion and is arranged up and down；
Second shell is vertically arranged comprising integrally formed second cylindrical portion and the second conus portion, second circle
Column portion is located at the underface of second conus portion and is arranged up and down, and second cylindrical portion is set to the interior of the first cylindrical portion
Portion, and the top of the second cylindrical portion is connect with the upper bearing of the first cylindrical portion；
Baffle, is hollow rounding taper type, and the baffle is set to the second cylindrical portion and the first cylindrical portion bearing junction
Lower section, and the small end of baffle is fixedly connected with the outer wall for being set forth in the second cylindrical portion, the big end of baffle and first cylinder
The inner wall in portion abuts；
Filter core is filled in second cylindrical portion, and the filter core is wall-flow type honeycomb ceramic filter core, hole road shape
For truncated cone, the big end and small end in duct are arranged alternately, and the cross-sectional area of big end is 1.6-1.8 times of small end cross-sectional area,
And small end is closed, big end is not closed；
Air inlet pipe, the tangential direction along the first cylindrical portion side are arranged in the middle and upper part of the first cylindrical portion, and with first
Cylindrical portion connection, the air inlet pipe are equipped with the first intake valve；
Downtake pipe is vertically arranged in the top of the second conus portion, and is connected to the second conus portion, the first row
Tracheae is equipped with first row air valve；
And ash releasing tube, it is vertically arranged in the bottom of the first conus portion, and be connected to the first conus portion, ash releasing tube
Top is equipped with the first ash-valve, and the lower part of ash releasing tube is equipped with ash collecting box, wherein
The second shell is rotated by a motor driven, and direction of rotation and rotation of the air inlet pipe tail gas inside first shell
It is consistent to turn direction.
Preferably, the Fractions of Diesel Engine Exhaust Particulates object capturing device, further includes: vacuum pump passes through a connecting pipe
It is connected to the middle and lower part of ash releasing tube；First filter screen is set to the junction of the communicating pipe and the ash releasing tube.
Preferably, the Fractions of Diesel Engine Exhaust Particulates object capturing device, further includes: communicating pipe, one end and ash releasing tube
Middle and lower part connection, the other end be connected to a three-way connection, and the junction of the communicating pipe and the ash releasing tube is equipped with the first mistake
Strainer；Vacuum pump is connected to the communicating pipe by the three-way connection, is equipped between the vacuum pump and the three-way connection
Vacuum valve；Oxygen pump, is connected to by the three-way connection with the communicating pipe, is set between the oxygen pump and the three-way connection
There is the second intake valve；Second ash-valve is set to the junction of the ash releasing tube and the ash collecting box；Second exhaust pipe, one
End is connected to the middle and upper part of the ash releasing tube, and the second exhaust pipe and the ash releasing tube junction are equipped with the second filter screen, institute
It states and is additionally provided with second row air valve on second exhaust pipe；And microwave generator, it is set to the lower inside of ash collecting box.
Preferably, the Fractions of Diesel Engine Exhaust Particulates object capturing device, the diameter of the first cylindrical portion are 15cm, the second circle
The diameter in column portion is 12.5cm, and the revolving speed of the second cylindrical portion is 60-80r/min.
Preferably, the Fractions of Diesel Engine Exhaust Particulates object capturing device, further includes pressure sensor, is set to first
The inner wall of cylindrical portion.
Preferably, the Fractions of Diesel Engine Exhaust Particulates object capturing device is also equipped at intervals on the outer wall of the second cylindrical portion
A plurality of protrusion, any protrusion are vertically arranged, and protrusion is semicylinder and the upper end is obliquely installed downwards and justifies with described second
The outer wall in column portion forms 145 ° of angles of cut, and raised top is concordant with the height of the air inlet pipe.
Preferably, the Fractions of Diesel Engine Exhaust Particulates object capturing device, first intake valve, first row air valve,
One ash-valve, vacuum valve, the second intake valve, the second ash-valve and second row air valve are solenoid valve.
Preferably, the Fractions of Diesel Engine Exhaust Particulates object capturing device, the microwave generator include microwave tube and micro-
Wave duct power supply, the microwave tube extend into the inside of ash collecting box, and the surface of the microwave tube is protected equipped with overheat protector and quartz
Shield, the microwave tube power supply are set to the outside of ash collecting box.
Preferably, the Fractions of Diesel Engine Exhaust Particulates object capturing device, the connection of the microwave tube and the ash collecting box
Place is equipped with microwave heat insulation loop.
A kind of control method of Fractions of Diesel Engine Exhaust Particulates object capturing device, comprising the following steps:
Step 1: particle collection opens the first intake valve, first row air valve, the first ash-valve and the second ash-valve, tail
Gas through the first intake valve enter Fractions of Diesel Engine Exhaust Particulates object capturing device and along the interval of the first cylindrical portion and the second cylindrical portion to
Lower rotary motion settles the biggish particulate matter in tail gas under gravitational and centrifugal forces through the first ash-valve and second
Ash-valve is fallen into ash collecting box, and then, tail gas enters filter core by the bottom of wall-flow type honeycomb ceramic filter core, lesser in tail gas
Particulate matter is only trapped in filter core after filter element filtering, and filtered tail gas is discharged through first row air valve；
Step 2: filter core regeneration closes the first air inlet when the air pressure that pressure sensor detects is greater than air pressure threshold value
Valve, first row air valve and the second ash-valve open vacuum valve and vacuum pump, form the inside of first shell and second shell negative
Pressure, the lesser particulate matter being trapped in filter core fall into the second ash-valve through the first ash-valve under the action of negative pressure and gravity
Top is adsorbed on the first filter screen；
Step 3: the first ash-valve, vacuum valve and vacuum pump are closed in burning particulate matter purification, open the first intake valve, the
One exhaust valve, the second ash-valve, the second intake valve and oxygen pump, make oxygen enter ash releasing tube through the second intake valve, by the first mistake
Smaller particle on strainer purges, and completes filter screen regeneration, improves oxygen concentration in ash releasing tube and ash collecting box, be then shut off
Second intake valve and oxygen pump, effect of the smaller particle above the smaller particle got off by purging and the second ash-valve in gravity
Lower sedimentation is fallen into ash collecting box through the second ash-valve, is opened microwave generator and second row air valve, is made the particulate matter in ash collecting box
The gas of full combustion, generation of burning is discharged after the second filter screen filtration by second row air valve；
Step 4: after the completion of burning, closing microwave generator and second row air valve, opens the first ash-valve, and repeats to walk
Rapid one arrives the process of step 3.
The present invention is include at least the following beneficial effects:
The first, by setting being driven by motor rotation for second shell, and direction of rotation and air inlet pipe tail gas are the
The direction of rotation of one enclosure interior is consistent, and flow velocity of the tail gas inside first shell and in filter core on the one hand can be improved, improve tail
On the other hand the arresting efficiency of aerated particle object can promote and collide and rub between exhaust particulate object and first shell and second shell,
It falls the large particle in tail gas under gravitational and centrifugal forces into ash releasing tube, realizes in tail gas large particle and small
The separation of particulate matter further decreases into the exhaust particulate object concentration in filter core, reduces the regeneration times of filter core, make filter core
Service life greatly prolongs；
The second, by being that hollow rounding taper type can be more effective compared with conventional hollow cone platform shape by baffle plate setting
Stop tail gas to raise up, tail gas is avoided to reveal from the junction of the first cylindrical portion and the second cylindrical portion, improves arresting efficiency；
Third, by the way that duct is shaped to truncated cone, and the cross-sectional area that duct big end is arranged is that small end is transversal
1.6-1.8 times of area, compared with convention square duct or regular hexagonal prism duct, one side is conducive to improve catching for particulate matter
Collect efficiency, be on the other hand conducive to the particulate matter trapped and fallen under the action of negative pressure, realizes filter core regeneration；
4th, by setting vacuum pump, it can make to form negative pressure inside filter core, make the particle being adsorbed on filter core in negative pressure
It is fallen under effect into ash releasing tube, realizes filter core regeneration, and directly directly heated the particle in filter by external heat source
The mode of burning, which regenerates, to be compared, and regeneration of the invention is small to the injury of filter core, and low energy consumption, can greatly prolong the use of filter core
Service life；
5th, by setting oxygen pump and microwave generator, the exhaust particulate object full combustion collected in ash collecting box can be made
Purification reduces pollution to atmosphere, and the residual ash after burning is trapped in ash collecting box, and when deashing need to only tear ash collecting box open
It is lower to pour out ash content, it is convenient and efficient；
6th, by being arranged a plurality of protrusion, and by the upper surface of protrusion tilt down setting and with second cylindrical portion
Outer wall form 145 ° of angles of cut, on the one hand can further improve flow velocity of the tail gas inside the first shell and in filter core, improve tail
On the other hand the arresting efficiency of aerated particle object can avoid exhaust particulate object and accumulate in the upper surface of protrusion, arresting efficiency is caused to drop
It is low；
7th, the particle collection of Fractions of Diesel Engine Exhaust Particulates object capturing device of the invention is high-efficient, up to 95%, and makes
Long with the service life, regeneration energy consumption is low, and deashing is convenient.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is primary structure schematic diagram of the invention.
Specific embodiment
Below with reference to embodiment and attached drawing, the present invention is described in further detail, to enable those skilled in the art's reference
Specification word can be implemented accordingly.
It should be noted that experimental method described in following embodiments is unless otherwise specified conventional method, institute
Reagent and material are stated, unless otherwise specified, is commercially obtained；In the description of the present invention, term " transverse direction ", " vertical
To ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", the instructions such as "outside" side
Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description of the present invention and simplification of the description,
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, because
This is not considered as limiting the invention.
Embodiment 1:
As shown in Figure 1, the present invention provides a kind of Fractions of Diesel Engine Exhaust Particulates object capturing device, comprising:
First shell 1, is vertically arranged comprising integrally formed first cylindrical portion 11 and the first conus portion 12, it is described
First 11, cylinder is located at the surface of first conus portion 12 and is arranged up and down；
Second shell 2, is vertically arranged comprising integrally formed second cylindrical portion 21 and the second conus portion 22, it is described
Second cylindrical portion 21 is located at the underface of second conus portion 22 and is arranged up and down, and second cylindrical portion 21 is set to the
The inside of one cylindrical portion 11, and the top of the second cylindrical portion 21 is connect with the top of the first cylindrical portion 11 by bearing 13；
Baffle 14, is hollow rounding taper type, and the baffle 14 is set to 11 axis of the second cylindrical portion 21 and the first cylindrical portion
The lower section of junction is held, and the small end of baffle 14 is fixedly connected with the outer wall for being set forth in the second cylindrical portion 21, the big end of baffle 14
It is abutted with the inner wall of first cylindrical portion 11；By being hollow rounding taper type by baffle plate setting, with conventional hollow cone platform
Shape is compared, and more effectively tail gas can be stopped to raise up, and is avoided tail gas from revealing from the junction of the first cylindrical portion and the second cylindrical portion, is led
Arresting efficiency is caused to reduce；
Filter core 3 is filled in second cylindrical portion 21, and the filter core 3 is wall-flow type honeycomb ceramic filter core, duct
Shape is truncated cone, and the big end and small end in duct are arranged alternately, and the cross-sectional area of big end is the 1.6-1.8 of small end cross-sectional area
Times, and small end is closed, big end is not closed；By the way that duct is shaped to truncated cone, and the cross section of duct big end is set
Product is 1.6-1.8 times of small end cross-sectional area, and compared with convention square duct or regular hexagonal prism duct, one side is conducive to mention
On the other hand the arresting efficiency of high particulate matter is conducive to the particulate matter trapped and falls under the action of negative pressure, realize filter core again
It is raw；If the ratio between the cross-sectional area of duct big end and small end cross-sectional area less than 1.6, lead to the cell walls mistake of duct inlet
The arresting efficiency of thickness, particulate matter reduces, and when filter core regeneration, particulate matter is not easy to fall under the action of negative pressure, and regeneration is not thorough；If
The ratio between cross-sectional area and small end cross-sectional area of duct big end are greater than 1.8, then cause cell densities too low, arresting efficiency decline.
Air inlet pipe 4, the tangential direction along 11 side of the first cylindrical portion are arranged in the middle and upper part of the first cylindrical portion 11, and with
The connection of first cylindrical portion 11, the air inlet pipe 4 are equipped with the first intake valve 41；
Downtake pipe 5 is vertically arranged in the top of the second conus portion 22, and is connected to the second conus portion 22, described
Downtake pipe 5 is equipped with first row air valve 51；
And ash releasing tube 6, it is vertically arranged in the bottom of the first conus portion 12, and be connected to the first conus portion 12, ash discharge
The top of pipe 6 is equipped with the first ash-valve 61, and the lower part of ash releasing tube 6 is equipped with ash collecting box 62, and ash collecting box 62 is detachably set with ash releasing tube 6
It sets, wherein
The second shell 2 is rotated by a motor driven, and direction of rotation and 4 tail gas of air inlet pipe are inside first shell 1
Direction of rotation it is consistent.The second shell is rotated by a motor driven, can be through the outer cover in the second conus portion
If first gear, second gear engaged with the first gear is arranged on motor drive bar, motor is by driving second gear to turn
It is dynamic, so that second gear drives first gear driving second shell rotation；It is also possible to by the outside of the second conus portion
Be arranged the first belt pulley, be arranged on motor drive bar with the second belt pulley, and between the first belt pulley and the second belt pulley
It is arranged belt, motor is by driving the second pulley rotation, so that the second belt pulley drives the first belt wheel drive second shell
Rotation.
By setting second shell to rotation is driven by motor, and direction of rotation and air inlet pipe tail gas are in first shell
Internal direction of rotation is consistent, and flow velocity of the tail gas inside first shell and in filter core on the one hand can be improved, improve exhaust particulate
On the other hand the arresting efficiency of object can promote and collide and rub between exhaust particulate object and first shell and second shell, makes tail gas
In large particle fallen under gravitational and centrifugal forces into ash releasing tube, realize large particle and small particle in tail gas
Separation, further decrease into the exhaust particulate object concentration in filter core, reduce the regeneration times of filter core, make filter core use the longevity
Life greatly prolongs.
In another technical solution, the Fractions of Diesel Engine Exhaust Particulates object capturing device, further includes: vacuum pump 7 passes through
A connecting pipe 8 is connected to the middle and lower part of ash releasing tube 6；First filter screen 81 is set to the communicating pipe 8 and the ash releasing tube 6
Junction.By the way that vacuum pump is arranged, it can make to form negative pressure inside filter core, make the particle being adsorbed on filter core under the action of negative pressure
It falls and enters ash releasing tube, realize filter core regeneration, and the particle in filter is directly directly heated into burning by external heat source
Mode, which regenerates, to be compared, and regeneration of the invention is small to the injury of filter core, and low energy consumption, can greatly prolong the service life of filter core.
In another technical solution, the Fractions of Diesel Engine Exhaust Particulates object capturing device, further includes: communicating pipe 8, one end
It is connected to the middle and lower part of ash releasing tube 6, the other end is connected to a three-way connection 82, the connection of the communicating pipe 8 and the ash releasing tube 6
Place is equipped with the first filter screen 81；Vacuum pump 7 is connected to by the three-way connection 82 with the communicating pipe 8, the vacuum pump 7
Vacuum valve 71 is equipped between the three-way connection 82；Oxygen pump 9, is connected to by the three-way connection 82 with the communicating pipe 8,
The second intake valve 91 is equipped between the oxygen pump 9 and the three-way connection 82；Second ash-valve 63 is set to the ash releasing tube 6
With the junction of the ash collecting box 62；Second exhaust pipe 64, one end are connected to the middle and upper part of the ash releasing tube 6, and described second
Exhaust pipe 64 and 6 junction of ash releasing tube are equipped with the second filter screen 66, are additionally provided with second exhaust on the second exhaust pipe 64
Valve 65；And microwave generator 10, it is set to the lower inside of ash collecting box 62.Pass through setting vacuum pump, oxygen pump and microwave hair
Raw device can be such that the particle being adsorbed on filter core is fallen under the action of negative pressure into ash collecting box, realize filter core regeneration, and make tail gas
Particulate matter full combustion in ash collecting box purifies, and reduces the pollution to atmosphere, and the residual ash after burning is trapped within collection ash
In box, when deashing, which need to only remove ash collecting box, pours out ash content, convenient and efficient.
In another technical solution, the Fractions of Diesel Engine Exhaust Particulates object capturing device further includes, the first cylindrical portion 11
Diameter is 15cm, and the diameter of the second cylindrical portion 21 is 12.5cm, and the revolving speed of the second cylindrical portion 21 is 60-80r/min.By by
The revolving speed of two cylindrical portions is set as 60-80r/min, is remarkably improved tail gas flow velocity, and then improve the arresting efficiency of exhaust particulate object；
If the revolving speed of the second cylindrical portion is lower than 60r/min, the raising of tail gas flow velocity is unobvious, and revolving speed is higher than 80r/min, will increase tail gas
Turbulivity in rotary course causes large particle and particle in tail gas that cannot separate well, to make catching for particulate matter
Collecting efficiency reduces.
In another technical solution, the Fractions of Diesel Engine Exhaust Particulates object capturing device, further includes pressure sensor 15,
Its inner wall for being set to the first cylindrical portion 11.
In another technical solution, the Fractions of Diesel Engine Exhaust Particulates object capturing device, on the outer wall of the second cylindrical portion 21
It is also equipped at intervals with a plurality of raised 23, any raised 23 to be vertically arranged, protrusion 23 is semicylinder and the upper end tilts set downwards
It sets and forms 145 ° of angles of cut with the outer wall of second cylindrical portion 21, the top of protrusion 23 is concordant with the height of the air inlet pipe 4.
By the way that a plurality of protrusion is arranged, and the upper surface of protrusion is tilted down into setting and forms 145 ° with the outer wall of second cylindrical portion
On the one hand the angle of cut can further improve flow velocity of the tail gas inside first shell and in filter core, improve the trapping of exhaust particulate object
On the other hand efficiency can avoid exhaust particulate object and accumulate in the upper surface of protrusion, arresting efficiency is caused to reduce.
In another technical solution, the Fractions of Diesel Engine Exhaust Particulates object capturing device, first intake valve 41, first
Exhaust valve 51, the first ash-valve 61, vacuum valve 71, the second intake valve 91, the second ash-valve 63 and second row air valve 66 are electricity
Magnet valve.
In another technical solution, the Fractions of Diesel Engine Exhaust Particulates object capturing device, the microwave generator 10 includes
Microwave tube and microwave tube power supply, the microwave tube extend into the inside of ash collecting box 62, and the surface of the microwave tube is protected equipped with overheat
Device and protective quartz jacket are protected, the microwave tube power supply is set to the outside of ash collecting box 62.
In another technical solution, the Fractions of Diesel Engine Exhaust Particulates object capturing device, the microwave tube and the collection are grey
The junction of box 62 is equipped with microwave heat insulation loop.
The control method of Fractions of Diesel Engine Exhaust Particulates object capturing device of the invention, comprising the following steps:
Step 1: particle collection opens the first intake valve, first row air valve, the first ash-valve and the second ash-valve, tail
Gas through the first intake valve enter Fractions of Diesel Engine Exhaust Particulates object capturing device and along the interval of the first cylindrical portion and the second cylindrical portion to
Lower rotary motion settles the biggish particulate matter in tail gas under gravitational and centrifugal forces through the first ash-valve and second
Ash-valve is fallen into ash collecting box, and then, tail gas enters filter core by the bottom of wall-flow type honeycomb ceramic filter core, lesser in tail gas
Particulate matter is only trapped in filter core after filter element filtering, and filtered tail gas is discharged through first row air valve；
Step 2: filter core regeneration closes the first air inlet when the air pressure that pressure sensor detects is greater than air pressure threshold value
Valve, first row air valve and the second ash-valve open vacuum valve and vacuum pump, form the inside of first shell and second shell negative
Pressure, the lesser particulate matter being trapped in filter core fall into the second ash-valve through the first ash-valve under the action of negative pressure and gravity
Top is adsorbed on the first filter screen；Selection carries out filter core regeneration when engine does not work or low speed is run；
Step 3: the first ash-valve, vacuum valve and vacuum pump are closed in burning particulate matter purification, open the first intake valve, the
One exhaust valve, the second ash-valve, the second intake valve and oxygen pump, make oxygen enter ash releasing tube through the second intake valve, by the first mistake
Smaller particle on strainer purges, and completes filter screen regeneration, improves oxygen concentration in ash releasing tube and ash collecting box, be then shut off
Second intake valve and oxygen pump, effect of the smaller particle above the smaller particle got off by purging and the second ash-valve in gravity
Lower sedimentation is fallen into ash collecting box through the second ash-valve, is opened microwave generator and second row air valve, is made the particulate matter in ash collecting box
The gas of full combustion, generation of burning is discharged after the second filter screen filtration by second row air valve；
Step 4: after the completion of burning, closing microwave generator and second row air valve, opens the first ash-valve, and repeats to walk
Rapid one arrives the process of step 3.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (10)
1. a kind of Fractions of Diesel Engine Exhaust Particulates object capturing device, including, first shell is vertically arranged comprising integrally formed
First cylindrical portion and the first conus portion, first cylindrical portion are located at the surface of first conus portion and set up and down
It sets；Second shell is vertically arranged comprising the second cylindrical portion, second cylindrical portion are set to the inside of the first cylindrical portion；Filter
Core is filled in second cylindrical portion；Air inlet pipe, the tangential direction along the first cylindrical portion side are arranged in the first cylinder
The middle and upper part in portion, and be connected to the first cylindrical portion, which is characterized in that the second shell further includes the second conus portion, with institute
It states the second cylindrical portion and is integrally formed setting, second cylindrical portion is located at the underface of second conus portion and sets up and down
It sets, and the top of the second cylindrical portion is connect with the upper bearing of the first cylindrical portion；The filter core is wall-flow type honeycomb ceramic filter core,
Its hole road shape is truncated cone, and the big end and small end in duct are arranged alternately, and the cross-sectional area of big end is small end cross-sectional area
1.6-1.8 times, and small end is closed, big end is not closed；The air inlet pipe is equipped with the first intake valve；Further include:
Baffle, is hollow rounding taper type, and the baffle is set under the second cylindrical portion and the first cylindrical portion bearing junction
Side, and the small end of baffle is fixedly connected with the outer wall for being set forth in the second cylindrical portion, the big end of baffle and first cylindrical portion
Inner wall abuts；
Downtake pipe is vertically arranged in the top of the second conus portion, and is connected to the second conus portion, the downtake pipe
It is equipped with first row air valve；
And ash releasing tube, it is vertically arranged in the bottom of the first conus portion, and be connected to the first conus portion, the top of ash releasing tube
Equipped with the first ash-valve, the lower part of ash releasing tube is equipped with ash collecting box, wherein
The second shell is rotated by a motor driven, and direction of rotation and rotation side of the air inlet pipe tail gas inside first shell
To consistent.
2. Fractions of Diesel Engine Exhaust Particulates object capturing device as described in claim 1, which is characterized in that further include: vacuum pump leads to
A connecting pipe is crossed to be connected to the middle and lower part of ash releasing tube；First filter screen is set to the connection of the communicating pipe and the ash releasing tube
Place.
3. Fractions of Diesel Engine Exhaust Particulates object capturing device as described in claim 1, which is characterized in that further include: communicating pipe, one
End is connected to the middle and lower part of ash releasing tube, and the other end is connected to a three-way connection, the junction of the communicating pipe and the ash releasing tube
Equipped with the first filter screen；Vacuum pump is connected to by the three-way connection with the communicating pipe, the vacuum pump and the threeway
Vacuum valve is equipped between connector；Oxygen pump, is connected to by the three-way connection with the communicating pipe, the oxygen pump and described three
The second intake valve is equipped between pass joint；Second ash-valve is set to the junction of the ash releasing tube and the ash collecting box；Second row
Tracheae, one end are connected to the middle and upper part of the ash releasing tube, and the second exhaust pipe and the ash releasing tube junction are equipped with second
Filter screen is additionally provided with second row air valve on the second exhaust pipe；And microwave generator, it is set to the interior subordinate of ash collecting box
Side.
4. Fractions of Diesel Engine Exhaust Particulates object capturing device as described in claim 1, which is characterized in that the diameter of the first cylindrical portion is
15cm, the diameter of the second cylindrical portion are 12.5cm, and the revolving speed of the second cylindrical portion is 60-80r/min.
5. Fractions of Diesel Engine Exhaust Particulates object capturing device as described in claim 1, which is characterized in that it further include pressure sensor,
Its inner wall for being set to the first cylindrical portion.
6. Fractions of Diesel Engine Exhaust Particulates object capturing device as described in claim 1, which is characterized in that on the outer wall of the second cylindrical portion
Also be equipped at intervals with a plurality of protrusion, any protrusion is vertically arranged, protrusion be semicylinder and the upper end be obliquely installed downwards and with
The outer wall of second cylindrical portion forms 145 ° of angles of cut, and raised top is concordant with the height of the air inlet pipe.
7. Fractions of Diesel Engine Exhaust Particulates object capturing device a method according to any one of claims 1-3, which is characterized in that first air inlet
Valve, first row air valve, the first ash-valve, vacuum valve, the second intake valve, the second ash-valve and second row air valve are solenoid valve.
8. Fractions of Diesel Engine Exhaust Particulates object capturing device as claimed in claim 3, which is characterized in that the microwave generator includes
Microwave tube and microwave tube power supply, the microwave tube extend into the inside of ash collecting box, and the surface of the microwave tube is equipped with overheating protection
Device and protective quartz jacket, the microwave tube power supply are set to the outside of ash collecting box.
9. Fractions of Diesel Engine Exhaust Particulates object capturing device as claimed in claim 8, which is characterized in that the microwave tube and the collection
The junction of ash box is equipped with microwave heat insulation loop.
10. a kind of control method of Fractions of Diesel Engine Exhaust Particulates object capturing device, which comprises the following steps:
Step 1: particle collection opens the first intake valve, first row air valve, the first ash-valve and the second ash-valve, tail gas warp
First intake valve enters Fractions of Diesel Engine Exhaust Particulates object capturing device and along the interval of the first cylindrical portion and the second cylindrical portion to backspin
Transhipment is dynamic, settles the biggish particulate matter in tail gas under gravitational and centrifugal forces through the first ash-valve and the second ash discharge
Valve is fallen into ash collecting box, and then, tail gas enters filter core by the bottom of wall-flow type honeycomb ceramic filter core, the lesser particle in tail gas
Object is only trapped in filter core after filter element filtering, and filtered tail gas is discharged through first row air valve；
Step 2: filter core regeneration closes the first intake valve, the when the air pressure that pressure sensor detects is greater than air pressure threshold value
One exhaust valve and the second ash-valve open vacuum valve and vacuum pump, and the inside of first shell and second shell is made to form negative pressure, quilt
The lesser particulate matter being trapped in filter core is fallen into above the second ash-valve under the action of negative pressure and gravity through the first ash-valve
Or it is adsorbed on the first filter screen；
Step 3: burning particulate matter purification closes the first ash-valve, vacuum valve and vacuum pump, opens the first intake valve, first row
Air valve, the second ash-valve, the second intake valve and oxygen pump, make oxygen enter ash releasing tube through the second intake valve, by the first filter screen
On smaller particle purge, complete filter screen regeneration, improve oxygen concentration in ash releasing tube and ash collecting box, be then shut off second
Intake valve and oxygen pump, are sunk under gravity by the smaller particle above smaller particle that purging gets off and the second ash-valve
Drop is fallen into ash collecting box through the second ash-valve, is opened microwave generator and second row air valve, is kept the particulate matter in ash collecting box abundant
Burning, the gas for generation of burning are discharged after the second filter screen filtration by second row air valve；
Step 4: after the completion of burning, closing microwave generator and second row air valve, opens the first ash-valve, and repeat step 1
To the process of step 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264129.7A CN106988833B (en) | 2017-04-21 | 2017-04-21 | Fractions of Diesel Engine Exhaust Particulates object capturing device and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264129.7A CN106988833B (en) | 2017-04-21 | 2017-04-21 | Fractions of Diesel Engine Exhaust Particulates object capturing device and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106988833A CN106988833A (en) | 2017-07-28 |
| CN106988833B true CN106988833B (en) | 2019-06-07 |
Family
ID=59416879
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1559530A (en) * | 1975-08-29 | 1980-01-23 | Schmitz H | Gas cleaning device |
| EP0482505A1 (en) * | 1990-10-24 | 1992-04-29 | PROECO INTERNATIONAL GmbH | Vortex-filter combination for the separation of solids dispersed in gases or in vapours |
| CN102107109A (en) * | 2009-12-23 | 2011-06-29 | 阿兰图姆公司 | Ship particulate matter and noxious gas reduction device |
-
2017
- 2017-04-21 CN CN201710264129.7A patent/CN106988833B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1559530A (en) * | 1975-08-29 | 1980-01-23 | Schmitz H | Gas cleaning device |
| EP0482505A1 (en) * | 1990-10-24 | 1992-04-29 | PROECO INTERNATIONAL GmbH | Vortex-filter combination for the separation of solids dispersed in gases or in vapours |
| CN102107109A (en) * | 2009-12-23 | 2011-06-29 | 阿兰图姆公司 | Ship particulate matter and noxious gas reduction device |
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| Publication number | Publication date |
|---|---|
| CN106988833A (en) | 2017-07-28 |
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